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<section style="box-sizing: border-box;font-style: normal;font-weight: 400;text-align: justify;font-size: 16px;"><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;width: 15%;padding: 0px 5px 0px 0px;box-sizing: border-box;"><section style="text-align: center;margin: 10px 0%;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.91" data-w="100" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mj5UIUiaCYnr2Hk0StZjGgfy3HOQjLvkuqUFy48pCgMWt5ucjgick38Tyr5jLJT8Toq1TjcuVeM5jAA/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section></section><section style="display: inline-block;vertical-align: top;width: 70%;box-sizing: border-box;"><section style="margin: 10px 0% 0px;box-sizing: border-box;" powered-by="gulangu"><section style="text-align: center;font-size: 12px;color: rgb(153, 166, 171);line-height: 1.4;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><span style="letter-spacing: 0px;line-height: 1.4;box-sizing: border-box;">欢迎点击以上蓝色字体</span><br style="box-sizing: border-box;"  /></p><p style="margin: 0px;padding: 0px;box-sizing: border-box;">关注</p></section></section></section><section style="display: inline-block;vertical-align: top;width: 15%;padding: 0px 0px 0px 5px;box-sizing: border-box;"><section style="text-align: center;margin: 10px 0%;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.91" data-w="100" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mj5UIUiaCYnr2Hk0StZjGgfy3HOQjLvkuqUFy48pCgMWt5ucjgick38Tyr5jLJT8Toq1TjcuVeM5jAA/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section></section></section><section style="margin: 10px 0px;box-sizing: border-box;" powered-by="gulangu"><section style="width: 50%;border-width: 3px;border-style: solid;border-color: rgb(254, 193, 192);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="padding: 5px 4px;clear: both;letter-spacing: 1px;box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;clear: none;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">作者南宁师范大学地理科学与规划学院教授毛蒋兴，南京城理人城市规划设计有限公司南宁分公司韦统，南京城理人城市规划设计有限公司南宁分公司张芳在《规划师》2020年第7期撰文，2017年，国家批复了《北部湾城市群发展规划》，新规划的城市群横跨了粤桂琼三省区，共15个市县。因学术意义、行政意义上的都市圈存在异同，文章采用经济社会数据、人口迁徙大数据及夜间灯光数据，结合断裂点模型、首位联系法和核密度分析对北部湾城市群南宁市、海口市、湛江市进行了都市圈识别。在对比三类数据方法的基础上，选用三类识别结果取交集进行都市圈综合界定。结果显示，三大都市圈远小于规划范围，城市群发育程度较低。因此，文章从优化发展格局、交通基础设施建设、产业协同发展和体制机制创新四大方面提出了规划建议。</p></section><section style="width: 50%;border-width: 3px;border-style: solid;border-color: rgb(42, 118, 162);float: right;margin-top: -6px;box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="clear: both;box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;border-color: rgb(21, 103, 167);border-style: solid;border-width: 1px;padding: 0px 4px;box-sizing: border-box;"><section style="margin: 0.5em 0px;text-align: left;transform: translate3d(0px, 0px, 0px);-webkit-transform: translate3d(0px, 0px, 0px);-moz-transform: translate3d(0px, 0px, 0px);-o-transform: translate3d(0px, 0px, 0px);box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);font-size: 12px;padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">[ 关键词 ]都市圈识别；都市圈规划；人口迁徙大数据；夜间灯光数据；北部湾城市群</p></section><section style="border-top: 2px dotted rgb(95, 94, 102);width: 100%;box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section></section><section style="font-size: 12px;color: rgb(56, 30, 5);letter-spacing: 1px;padding: 0px 4px;box-sizing: border-box;" powered-by="gulangu"><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">[ 文章编号 ]1006-0022(2020)07-0053-07　</p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">[ 中图分类号 ]TU984.1　</p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">[ 文献标识码 ]B </p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">[ 引文格式 ]毛蒋兴，韦统，张芳．基于多源数据的北部湾城市群都市圈识别与发展规划建议[J]．规划师，2020(7)：53-59．</p></section></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.3692308" data-w="65" src="http://mmbiz.qpic.cn/mmbiz_gif/ibWCnRAEsMdMqxtHuIGiansGjGuJYHs6VeicJ09g5J3ecO56JIk4iaYzV53MzsLaOgkicNrAtLbCsTSk3iazibEo9gSiaQ/640?wx_fmt=gif" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="gif"  /></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;border-radius: 1em;background-color: rgb(21, 103, 167);padding: 0.3em 0.8em;color: rgb(255, 255, 255);font-size: 18px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">一</strong></p><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">基于多源数据的北部湾城市群</strong><strong style="box-sizing: border-box;">都市圈识别方法</strong></p></section></section><section style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;border-width: 1px;border-style: solid;border-color: rgb(21, 103, 167);padding: 10px;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><span style="box-sizing: border-box;">本文的研究区为《规划》所确定的</span><span style="box-sizing: border-box;">北部湾城市群，其陆域面积为11.66万平</span><span style="box-sizing: border-box;">方公里，共包括15个市县，具体组成如</span><span style="box-sizing: border-box;">下：广西壮族自治区的南宁市、北海市、</span><span style="box-sizing: border-box;">钦州市、防城港市、玉林市、崇左市；</span><span style="box-sizing: border-box;">广东省的湛江市、茂名市、阳江市；海</span><span style="box-sizing: border-box;">南省的海口市、儋州市、东方市、澄迈县、</span><span style="box-sizing: border-box;">临高县、昌江县。所采用的数据为2016</span><span style="box-sizing: border-box;">年经济社会数据、2017年人口迁徙数据</span><span style="box-sizing: border-box;">及2017年7月份 NPP/VIIRS夜间灯光影</span><span style="box-sizing: border-box;">像。其中，人口迁徙数据源自腾讯位置</span><span style="box-sizing: border-box;">大数据平台，该平台收集了每一个城市</span><span style="box-sizing: border-box;">每天的人口迁入量、迁出量的前十位城</span><span style="box-sizing: border-box;">市，而以城市为单位的人口迁徙数据，</span><span style="box-sizing: border-box;">较适合大区域人口流动的研究。研究区</span><span style="box-sizing: border-box;">内全年共有109280次两两城市之间的</span><span style="box-sizing: border-box;">人口迁徙行为，总迁徙量为7.64×108。</span><span style="box-sizing: border-box;">需说明的是，该迁徙量并不是真实的</span><span style="box-sizing: border-box;">人数，而是其相对值。NPP/VIIRS 夜间</span><span style="box-sizing: border-box;">灯光影像是美国国家海洋与大气管理</span><span style="box-sizing: border-box;">局(National Oceanic and Atmospheric </span><span style="box-sizing: border-box;">Administration，简称“NOAA”) 采集并</span><span style="text-indent: 2em;box-sizing: border-box;">对外发布的一种遥感影像数据，该影像</span><span style="text-indent: 2em;box-sizing: border-box;">以亮斑区域和黑暗区域有效地区分出了</span><span style="text-indent: 2em;box-sizing: border-box;">城镇空间与乡村空间。NPP/VIIRS 夜间灯</span><span style="text-indent: 2em;box-sizing: border-box;">光影像相比旧版的DMSP/OLS 夜间灯光</span><span style="text-indent: 2em;box-sizing: border-box;">影像而言，具有更高的空间分辨率和时</span><span style="text-indent: 2em;box-sizing: border-box;">间分辨率，此外，也突破了像元值最大</span><span style="text-indent: 2em;box-sizing: border-box;">为63的限制，有效解决了中心城区灯光</span><span style="text-indent: 2em;box-sizing: border-box;">饱和问题。</span></p><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">本文从城市吸引力、人口流动和空<span style="box-sizing: border-box;">间集聚3个角度出发，采用3类数据方</span><span style="box-sizing: border-box;">法进行都市圈识别，分4个步骤：①用</span><span style="box-sizing: border-box;">经济社会数据计算各区县的综合实力大</span><span style="box-sizing: border-box;">小，结合断裂点模型求出核心城区的吸</span><span style="box-sizing: border-box;">引力范围，得到第一组识别结果；②用</span><span style="box-sizing: border-box;">人口迁徙量表征城市间联系强度，在综</span><span style="box-sizing: border-box;">合考虑城市中心性的基础上，以最大联</span><span style="box-sizing: border-box;">系法得到第二组识别结果；③对灯光数</span><span style="box-sizing: border-box;">据进行处理，以灯光总量、灯光强度和</span><span style="box-sizing: border-box;">灯光集聚度量化其空间集聚特征，并将3</span><span style="box-sizing: border-box;">个指标按等级进行赋值叠加，从而得到</span><span style="box-sizing: border-box;">第三组识别结果；④对以上三组结果取</span><span style="box-sizing: border-box;">交集进行都市圈综合界定。</span></p></section></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.3692308" data-w="65" src="http://mmbiz.qpic.cn/mmbiz_gif/ibWCnRAEsMdMqxtHuIGiansGjGuJYHs6VeicJ09g5J3ecO56JIk4iaYzV53MzsLaOgkicNrAtLbCsTSk3iazibEo9gSiaQ/640?wx_fmt=gif" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="gif"  /></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;border-radius: 1em;background-color: rgb(21, 103, 167);padding: 0.3em 0.8em;color: rgb(255, 255, 255);font-size: 18px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">二</strong></p><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">基于多源数据的北部湾城市群</strong><strong style="box-sizing: border-box;">都市圈识别结果</strong></p></section></section><section style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;border-width: 1px;border-style: solid;border-color: rgb(21, 103, 167);padding: 10px;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（一）基于经济社会数据的都市圈识别</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">1.综合实力计算</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">以综合实力作为判断中心性的依据，<span style="box-sizing: border-box;">即区县综合实力越高，该区县的中心性</span><span style="box-sizing: border-box;">越强，对周围区县的吸引力越大。将市</span><span style="box-sizing: border-box;">辖区、县(县级市) 作为研究单元，在前</span><span style="box-sizing: border-box;">人关于城市综合实力评价指标体系研究</span><span style="box-sizing: border-box;">的基础上，考虑数据统计口径、数</span><span style="box-sizing: border-box;">据完整性等因素，选取城镇规模和经济</span><span style="box-sizing: border-box;">发展两方面共7项指标(表1)，采用熵</span><span style="box-sizing: border-box;">权法计算各区县的综合实力大小。结果</span><span style="box-sizing: border-box;">显示，南宁市辖区、海口市辖区、湛江</span><span style="box-sizing: border-box;">市辖区分别位于各自省(区) 的综合实力</span><span style="box-sizing: border-box;">首位，中心性与《规划》所给予的“一</span><span style="box-sizing: border-box;">核两极”定位相匹配。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.8984962" data-w="266" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTrTBLm0knPKibC2HJywgJAZmUl1Hm8eSm5IleXfGmfMSGDra4iah5R87w/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">2.断裂点计算与都市圈识别</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">基于空间相互作用理论，都市圈的<span style="box-sizing: border-box;">空间边界可通过确定其核心城市的空间</span><span style="box-sizing: border-box;">吸引范围来界定。该理论指出：某核心</span><span style="box-sizing: border-box;">城市对其周边区域的吸引力与它自身的</span><span style="box-sizing: border-box;">规模成正比，与到它的距离成反比。基</span><span style="box-sizing: border-box;">于此，选用断裂点模型来确定核心城市</span><span style="box-sizing: border-box;">的吸引范围，为了能更全面地表征城市</span><span style="box-sizing: border-box;">吸引力的强弱，本文以综合实力来进行</span><span style="box-sizing: border-box;">断裂点计算，并将计算结果做空间可视</span><span style="box-sizing: border-box;">化表达(图1～图3)。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-cropselx1="0" data-cropselx2="556" data-cropsely1="0" data-cropsely2="592" data-ratio="1.0774907749077491" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTu50iaWz4ZmzLPY44axfuznG9ia0lD9dQydrup0cRwCTPz1q1WgUyxJsw/640?wx_fmt=png" data-type="png" data-w="542" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;width: 556px;height: 599px;"  /></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-cropselx1="0" data-cropselx2="556" data-cropsely1="0" data-cropsely2="588" data-ratio="1.0728597449908925" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTJ5FA1IAKlcWaicic2LqV62w6CMFg8MuNNQicuLWYeDMdDDrMejgaAjV7Q/640?wx_fmt=png" data-type="png" data-w="549" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;width: 556px;height: 597px;"  /></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-cropselx1="0" data-cropselx2="556" data-cropsely1="0" data-cropsely2="589" data-ratio="1.0762250453720508" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTgic2L8VkmEbRicODlHWiaPhRJXagvLHojPDtCFYrtbdB5xxS9Q6X2yfYw/640?wx_fmt=png" data-type="png" data-w="551" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;width: 556px;height: 598px;"  /></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">若断裂点落在某区县的行政边界范<span style="box-sizing: border-box;">围内，则该区县就属于核心城区的辐射</span><span style="box-sizing: border-box;">范围，依此确定都市圈识别结果(图4)：</span><span style="box-sizing: border-box;">①南宁都市圈，包括南宁市辖区、崇左</span><span style="box-sizing: border-box;">市辖区、钦州市辖区、扶绥县、横县、</span><span style="box-sizing: border-box;">宾阳县、隆安县、马山县、上林县、灵</span><span style="box-sizing: border-box;">山县、上思县、龙州县、大新县、天等县；</span><span style="box-sizing: border-box;">②海口都市圈，包括海口市辖区、澄迈县、</span><span style="box-sizing: border-box;">临高县、徐闻县、雷州市；③湛江都市</span><span style="box-sizing: border-box;">圈，包括湛江市辖区、吴川市、遂溪县、</span><span style="box-sizing: border-box;">廉江市、化州市、博白县、陆川县。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.0761035" data-w="657" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTLo3G9Vn6gqvRIJbz5sS2Dq5SmjiaA4xwhAdqgV6vyNqOlPStwsxjTmw/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（二）基于人口迁徙大数据的都市圈识别</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">1.城市中心性分析</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">中心性通常应用于城市体系划分、<span style="box-sizing: border-box;">城市吸引范围划分和城市空间网络结构</span><span style="box-sizing: border-box;">分析等方面，是指某一节点对整个网络</span><span style="box-sizing: border-box;">的控制能力与支配能力，大小通常用度</span><span style="box-sizing: border-box;">数中心度来衡量。度数中心度值越大，</span><span style="box-sizing: border-box;">代表该城市人口迁出、迁出量越大，</span><span style="box-sizing: border-box;">中心性越强，支配力也越强。构建</span><span style="box-sizing: border-box;">人口迁徙矩阵，采用Ucinet软件中的</span><span style="box-sizing: border-box;">Network/ Centrality模块对矩阵进行中心</span><span style="box-sizing: border-box;">度计算，结合ArcGIS自然间断点分级法</span><span style="box-sizing: border-box;">进行空间可视化分析。中心度大小总体</span><span style="box-sizing: border-box;">上表现为广西、广东高而海南低的分布</span><span style="box-sizing: border-box;">特征，南宁市、海口市、湛江市分别是</span><span style="box-sizing: border-box;">各自所处省(区) 的支配中心，南宁市为</span><span style="box-sizing: border-box;">整个网络的支配中心(图5)。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.0416048" data-w="673" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTT7ZxZPV7Yd3tpicQ7Qx70kNNbDdNHZeHrZ9Fbt9icZnMibbhj0iaBnuewQ/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">2.城市联系强度分析与都市圈识别</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">以人口迁徙量表示两两城市间的联<span style="box-sizing: border-box;">系强度，采用ArcGIS 自然间断点分级法</span><span style="box-sizing: border-box;">将联系强度分成4 级，轴线越粗，则城</span><span style="box-sizing: border-box;">市间联系强度越大(图6)。研究区整体</span><span style="box-sizing: border-box;">表现为多中心辐射格局，主要辐射中心</span><span style="box-sizing: border-box;">为南宁市、湛江市、茂名市、海口市等</span><span style="box-sizing: border-box;">主要城市。在联系强度分析的基础上，</span><span style="box-sizing: border-box;">以最大联系法识别出都市圈(图7)。据</span><span style="box-sizing: border-box;">QAP 相关分析，以最大联系强度的</span><span style="box-sizing: border-box;">10％和5％门槛值做筛选均不影响数据的</span><span style="box-sizing: border-box;">质量。因此，为避免界定的都市圈范围过</span><span style="box-sizing: border-box;">大，以10％门槛值筛选首位联系城市，</span><span style="box-sizing: border-box;">综合考虑城市中心性大小和空间邻近性原</span><span style="box-sizing: border-box;">则，得出都市圈识别结果(图8)：①南宁</span><span style="box-sizing: border-box;">都市圈，包括南宁市、北海市、钦州市、</span><span style="box-sizing: border-box;">防城港市、玉林市、崇左市；②海口都市</span><span style="box-sizing: border-box;">圈，包括海口市、澄迈县、儋州市、临高</span><span style="box-sizing: border-box;">县；③湛江都市圈，包括湛江市、茂名市、</span><span style="box-sizing: border-box;">阳江市。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.0776256" data-w="657" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTqtib3CibfCHBibdUHRRuaicRgJm5l2jzNzOQIXygHjVzx4ibst5Ossb5xAg/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-cropselx1="0" data-cropselx2="556" data-cropsely1="0" data-cropsely2="596" data-ratio="1.0944741532976827" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqT3KnMjaZTkYoyZcVjdT40Fpffaoic5jcK2icHaAGmUtyLkRXVeU1gVQJg/640?wx_fmt=png" data-type="png" data-w="561" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;width: 556px;height: 609px;"  /></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-cropselx1="0" data-cropselx2="556" data-cropsely1="0" data-cropsely2="597" data-ratio="1.0928571428571427" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTI9xlzNicr751ufWbTKGuEElJONS9Y446lrofFxBClOVBUtfwppaiaGGg/640?wx_fmt=png" data-type="png" data-w="560" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;width: 556px;height: 608px;"  /></section></section><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（三）基于NPP/VIIRS 夜间灯光数据的都市圈识别</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">1.灯光总量与灯光强度分析</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">灯光总量是指行政区内所有灯光点<span style="box-sizing: border-box;">的像元值之和，用以反映某一区县的灯光</span><span style="box-sizing: border-box;">规模大小，值越大，城镇发展的能级越</span><span style="box-sizing: border-box;">大。灯光总量与行政区面积的比值为灯光</span><span style="box-sizing: border-box;">强度，用以表征各区县的灯光疏密程度，</span><span style="box-sizing: border-box;">值越大，城镇建设越密集。利用 ArcGIS</span><span style="box-sizing: border-box;">自然间断点分级法分别将灯光总量、灯光</span><span style="box-sizing: border-box;">强度分成4个等级(图9，图10)。可见，</span><span style="box-sizing: border-box;">灯光总量、灯光强度均呈“两核多中心”</span><span style="box-sizing: border-box;">的空间结构特征，且第1、第2等级的区</span><span style="box-sizing: border-box;">县大体上相连，近似于“y”型的分布形态。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.07739" data-w="659" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTN3sd81mwbR36CpgB00ohCBYwyvsMmWYcbEUUKUcnibazRz1HCfe8Pjg/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.1161525" data-w="551" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTQI5FyjOkYWkc5jmIn3icGdrBjJrSLYkm5B99eTCLTohHvicVrtx3Hg0w/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">2.灯光集聚度分析与都市圈识别</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">灯光集聚度是指灯光点在空间分布<span style="box-sizing: border-box;">上的集聚程度，用来衡量某一区域范围内</span><span style="box-sizing: border-box;">灯光点分布的集聚或分散情况，通常情况</span><span style="box-sizing: border-box;">下，都市圈核心区灯光集聚度高于外围地</span><span style="box-sizing: border-box;">区。顾朝林基于几何点的平面统计原理和</span><span style="box-sizing: border-box;">随机分布模型，总结出在我国各省区(青</span><span style="box-sizing: border-box;">海、西藏除外) 内，以核心城市为圆心向</span><span style="box-sizing: border-box;">外125km的半径范围内，各城市呈集聚</span><span style="box-sizing: border-box;">型分布的空间态势。参照这个划分方法，</span><span style="box-sizing: border-box;">以带宽R=125km对灯光点进行核密度分</span><span style="box-sizing: border-box;">析，并按照灯光集聚程度划分核心区、次</span><span style="box-sizing: border-box;">核心区、潜在核心区和外围区4个等级的</span><span style="box-sizing: border-box;">空间结构类型(图11～图13)。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.1092896" data-w="549" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTUjt8tu8nEAGA5NmsHpKaQ3J4c8Aia8NubGbd4ticSziaMoaNtmJCLdiahQ/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.1074681" data-w="549" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTbboS2MnNPaanhmvDcomFR5EogiamicuMfkWPlrhRbjUQdb1BP2Hazibqw/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.0729927" data-w="548" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTU2kaLx1l2iarL5ctfdbicEpLpPGrd94iah3rrqccBLKlQy0DKyibmmonUA/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><span style="box-sizing: border-box;">对灯光总量、灯光强度、灯光集聚度</span><span style="box-sizing: border-box;">的分级结果按等级赋值叠加，结合空间邻</span><span style="box-sizing: border-box;">近性原则，得出都市圈识别结果(图14)：</span><span style="box-sizing: border-box;">①南宁都市圈，包括南宁市辖区、北海市</span><span style="box-sizing: border-box;">辖区、钦州市辖区、防城港市辖区、扶绥</span><span style="box-sizing: border-box;">县、上林县、宾阳县、上思县与合浦县；</span><span style="box-sizing: border-box;">②海口都市圈，包括海口市辖区、澄迈县、</span><span style="box-sizing: border-box;">临高县和儋州市；③湛江都市圈，包括湛</span><span style="box-sizing: border-box;">江市辖区、茂名市辖区、阳江市辖区、遂</span><span style="box-sizing: border-box;">溪县、吴川市、廉江市、化州市、高州市</span><span style="box-sizing: border-box;">和阳西县。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.1072727" data-w="550" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTXPFLVXCGodtASN0kicic2G3TkxodbhBulJtbLfoWwFmWia7uJ7AFhIDDQ/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（四）都市圈综合界定结果</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">对比而言，基于经济社会数据的都<span style="box-sizing: border-box;">市圈识别具有排除行政边界限制的特点，</span><span style="box-sizing: border-box;">但数据的完整性会对识别精度造成一定影</span><span style="box-sizing: border-box;">响；人口迁徙数据受统计单元的影响，识</span><span style="box-sizing: border-box;">别范围最大，明显高估，但反映了研究区</span><span style="box-sizing: border-box;">内城市的中心性和联系密切程度；夜间数</span><span style="box-sizing: border-box;">据识别结果面积最小，更能真实反映城镇</span><span style="box-sizing: border-box;">空间集聚分布的范围。因此，将3类识别</span><span style="box-sizing: border-box;">结果取交集进行综合界定，得出空间集聚、</span><span style="box-sizing: border-box;">联系紧密的都市圈(图15)：①南宁都市</span><span style="box-sizing: border-box;">圈，包括南宁市辖区、宾阳县、上林县、</span><span style="box-sizing: border-box;">扶绥县、上思县与钦州市辖区；②海口</span><span style="box-sizing: border-box;">都市圈，包括海口市辖区、澄迈县和临</span><span style="box-sizing: border-box;">高县；③湛江都市圈，包括湛江市辖区、</span><span style="box-sizing: border-box;">吴川市、化州市、廉江市和遂溪县。可见，</span><span style="box-sizing: border-box;">都市圈界定结果远小于规划范围，三大</span><span style="box-sizing: border-box;">都市圈的发育程度仍待提升。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.0932358" data-w="547" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTUkTmOYdMbHUPowdGHjXocHRncvfdjcibianvJr1oGlcJvIkhQbTmDnAg/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.3692308" data-w="65" src="http://mmbiz.qpic.cn/mmbiz_gif/ibWCnRAEsMdMqxtHuIGiansGjGuJYHs6VeicJ09g5J3ecO56JIk4iaYzV53MzsLaOgkicNrAtLbCsTSk3iazibEo9gSiaQ/640?wx_fmt=gif" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="gif"  /></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;border-radius: 1em;background-color: rgb(21, 103, 167);padding: 0.3em 0.8em;color: rgb(255, 255, 255);font-size: 18px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">三</strong></p><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">北部湾城市群都市圈规划建议</strong></p></section></section><section style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;border-width: 1px;border-style: solid;border-color: rgb(21, 103, 167);padding: 10px;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（一）优化都市圈空间结构</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">1.构建三大都市圈协同发展格局</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">在《规划》确定的“一湾两轴、一<span style="box-sizing: border-box;">核两极”城市群框架的基础上，构建北</span><span style="box-sizing: border-box;">部湾城市群 “三圈三轴”的都市圈协同</span><span style="box-sizing: border-box;">发展格局(图16)。从现状城镇空间分布</span><span style="box-sizing: border-box;">特征看，南宁市辖区、湛江市辖区、海</span><span style="box-sizing: border-box;">口市辖区及其周边区域所形成的都市圈</span><span style="box-sizing: border-box;">为城市群的三大集聚核心，但并未实现</span><span style="box-sizing: border-box;">连绵成片发展。对此，打造城市群“y”</span><span style="box-sizing: border-box;">型城镇发展轴，主要引导综合服务、物</span><span style="box-sizing: border-box;">流商贸和海洋产业等功能集聚，积极培</span><span style="box-sizing: border-box;">育城市连绵带，促进三大都市圈联动发</span><span style="box-sizing: border-box;">展和城市群一体化进程。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.0874525" data-w="526" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTAxERiaqpR9Rtl64vPyVNx87dJHWlialGdr2SHWKSXNB4icjcGLhePI0Nw/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="width: 40px;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section><section style="padding-left: 8px;padding-right: 8px;color: rgb(58, 140, 226);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">2.促进各都市圈圈层式拓展</p></section><section style="width: 40px;text-align: right;margin-left: auto;height: 5px;line-height: 5px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: 30px;border-top: 1px dashed rgb(58, 140, 226);border-right-color: rgb(58, 140, 226);border-bottom-color: rgb(58, 140, 226);border-left-color: rgb(58, 140, 226);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 5px;height: 5px;border-radius: 50%;border-width: 1px;border-style: solid;border-color: rgb(58, 140, 226);display: inline-block;vertical-align: middle;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">在确定核心区的前提下，将周边区<span style="box-sizing: border-box;">县划入都市圈范围，推动形成圈层式向</span><span style="box-sizing: border-box;">外扩展的都市圈空间结构。</span></p><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">(1) 南宁都市圈。</p><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">都市圈核心区以南宁市辖区和扶绥<span style="box-sizing: border-box;">县构成，并向外辐射至横县和钦州市部</span><span style="box-sizing: border-box;">分地区(图17)。核心区主要强化创新研</span><span style="box-sizing: border-box;">发、金融服务、国际交流、商贸物流和</span><span style="box-sizing: border-box;">信息服务等功能，构建以高新产业和现</span><span style="box-sizing: border-box;">代服务业集聚为主要特征的产业体系，</span><span style="box-sizing: border-box;">促进产业创新化、高端化发展，打造成</span><span style="box-sizing: border-box;">为引领北部湾城市群高质量发展的强大</span><span style="box-sizing: border-box;">引擎、创新中心和对外开放合作的高地。</span><span style="box-sizing: border-box;">都市圈外围区，以南宁市为中心，依托</span><span style="box-sizing: border-box;">主要交通通道向四周辐射，并优化提升</span><span style="box-sizing: border-box;">沿线节点城镇的区域功能，促进大中小</span><span style="box-sizing: border-box;">城镇协调发展。其中，南向为主要拓展</span><span style="box-sizing: border-box;">方向，钦州市为南宁都市圈的重要城市，</span><span style="box-sizing: border-box;">强化对南宁都市圈发展的支撑作用，打</span><span style="box-sizing: border-box;">造南宁市南向拓展的先行区、区域性产</span><span style="box-sizing: border-box;">业合作新高地。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.9048387" data-w="620" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTjWCzIdiajGMNpNQXrGHBDBCSK6sOkEvd3EauZjnziawBlD8VNFtibldKg/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">(2) 海口都市圈。</p><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">都市圈核心区以海口市和澄迈县共<span style="box-sizing: border-box;">同构成(图18)，重点强化科技创新、生</span><span style="box-sizing: border-box;">态旅游、文化服务和金融服务等功能，建</span><span style="box-sizing: border-box;">设成为国家南海海洋研发和综合产业开</span><span style="box-sizing: border-box;">发基地，北部湾城市群区域性中心城市和</span><span style="box-sizing: border-box;">引领海南全省发展的增长极。考虑到海口</span><span style="box-sizing: border-box;">市未来辐射能力的增强和城市群一体化</span><span style="box-sizing: border-box;">进程的影响，都市圈外围辐射覆盖文昌、</span><span style="box-sizing: border-box;">临高和徐闻。推动都市圈重点向西串联儋</span><span style="box-sizing: border-box;">州(洋浦)，促进新兴工业和海洋产业集</span><span style="box-sizing: border-box;">聚发展；向北辐射徐闻县，强化连通粤琼</span><span style="box-sizing: border-box;">两省的门户枢纽作用，助推琼州海峡一体</span><span style="box-sizing: border-box;">化发展；依托江东新区建设，向东辐射文</span><span style="box-sizing: border-box;">昌市，加快海澄文一体化进程。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.1169591" data-w="513" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTXh1MBlBjTzRd0ID99oziaWmQYBGbfmy2ChFK4rqNkDqbzdmYO0OFtIA/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">(3) 湛江都市圈。</p><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">通过夜间灯光影像分析可知，湛江<span style="box-sizing: border-box;">市和茂名市已呈现出集聚发展的空间态</span><span style="box-sizing: border-box;">势，而且随着湛江、茂名同城化和茂名、</span><span style="box-sizing: border-box;">高州同城化的推进，上文所界定的湛江</span><span style="box-sizing: border-box;">都市圈将会与茂名市连接形成一个新的</span><span style="box-sizing: border-box;">都市圈，而具备综合实力优势的湛江市</span><span style="box-sizing: border-box;">也将成为都市圈的核心。因此，本文建</span><span style="box-sizing: border-box;">议在界定结果的基础上，将茂名市和高</span><span style="box-sizing: border-box;">州市纳入湛江都市圈内，以湛江市、茂</span><span style="box-sizing: border-box;">名市打造成湛江都市圈核心区(图19)，</span><span style="box-sizing: border-box;">强化商贸物流、科创、旅游和金融服务</span><span style="box-sizing: border-box;">等功能，建设区域性综合交通枢纽、临</span><span style="box-sizing: border-box;">港先进装备制造基地和广东西翼沿海经</span><span style="box-sizing: border-box;">济增长极。都市圈重点向东辐射带动阳</span><span style="box-sizing: border-box;">江市，强化与珠三角地区的对接合作，</span><span style="box-sizing: border-box;">融入广东省沿海经济带建设；向北对接</span><span style="box-sizing: border-box;">广西南部和东南部，发挥对广西的服务</span><span style="box-sizing: border-box;">支撑功能；南向辐射雷州半岛海洋休闲</span><span style="box-sizing: border-box;">旅游区，对接海口国际旅游岛，实现旅</span><span style="box-sizing: border-box;">游功能互动发展。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.1090573" data-w="541" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTUtOXkMiaB0SibYRKb4FTlUTS6uKqIJ5CY8WPyOtxx2lhx7hXqmTPZ42g/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（二）打造一体化交通网络</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><span style="box-sizing: border-box;">从北部湾城市群层面推进交通基础</span><span style="box-sizing: border-box;">设施互联互通，以多层次轨道交通和高</span><span style="box-sizing: border-box;">速公路为骨干，完善综合交通通道，打</span><span style="box-sizing: border-box;">破三大都市圈邻而不通的状态，并与周</span><span style="box-sizing: border-box;">边区域形成良好对接(图20)。形成“K”</span><span style="box-sizing: border-box;">字形和“八”字形主要交通通道，重点</span><span style="box-sizing: border-box;">承担三大核心城市的对外交通和区域来</span><span style="box-sizing: border-box;">往，实现南宁市与湛江市互通，串联两</span><span style="box-sizing: border-box;">广沿海城镇。建设“两横一竖”次要交</span><span style="box-sizing: border-box;">通通道，横向串联广西内陆城市和广东</span><span style="box-sizing: border-box;">内陆城市，竖向串联玉林市、湛江市、</span><span style="box-sizing: border-box;">海口市，实现三省(区) 互通。</span></p><p style="text-align: center;"><img class="rich_pages js_insertlocalimg" data-ratio="1.0678571428571428" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTWQqrzXDyPYFdFORTUbDsA2uPIVPagjlT5MnleM1Io9txQFwXqHXMnA/640?wx_fmt=png" data-type="png" data-w="560" style=""  /></p><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><span style="box-sizing: border-box;"></span><span style="box-sizing: border-box;">都市圈层面，完善交通基础设施网</span><span style="box-sizing: border-box;">络，打造便捷高效的都市圈。推动建设</span><span style="box-sizing: border-box;">核心城市交通走廊。基于南宁市、海口</span><span style="box-sizing: border-box;">市、湛江市综合交通枢纽建设，推动核</span><span style="box-sizing: border-box;">心城市与周边地区实现通勤同城化。构</span><span style="box-sizing: border-box;">建以高速公路为主的城际公路网，实施</span><span style="box-sizing: border-box;">打通“断头路”和拓宽“瓶颈路”等措施，</span><span style="box-sizing: border-box;">畅通都市圈公路网。构建以轨道交通为</span><span style="box-sizing: border-box;">骨干的通勤圈，扩大轨道交通覆盖面，</span><span style="box-sizing: border-box;">打造“1 小时都市圈”。推进都市圈城市</span><span style="box-sizing: border-box;">交通一卡通，实现多种交通方式无缝连</span><span style="box-sizing: border-box;">接，提升都市圈通勤效率。</span><span style="text-align: center;"></span></p></section><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（三）推进区域产业集群发展</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">通过培育各类产业集群(图21)，促<span style="box-sizing: border-box;">使产业集约化发展，推进粤桂琼产业深</span><span style="box-sizing: border-box;">度合作。培育现代服务业集群，重点推</span><span style="box-sizing: border-box;">进信息、金融、商务会展、商贸和物流</span><span style="box-sizing: border-box;">等服务业态，促进南宁市、海口市、湛</span><span style="box-sizing: border-box;">江市三大核心城市现代服务业集聚发展。</span><span style="box-sizing: border-box;">依托广西边海优势，推进边贸产业集群</span><span style="box-sizing: border-box;">和临港产业集群发展；依托湛江国家海</span><span style="box-sizing: border-box;">洋高技术产业基地和北海海洋产业科技</span><span style="box-sizing: border-box;">园区，打造北部湾海洋产业集群。培育</span><span style="box-sizing: border-box;">冶金石化产业集群，推动产业转型发展，</span><span style="box-sizing: border-box;">引导冶金产业提质升级、绿色发展，发</span><span style="box-sizing: border-box;">挥宝钢湛江基地的引领带动作用，推动</span><span style="box-sizing: border-box;">冶金精深加工产业集聚发展。以炼化一</span><span style="box-sizing: border-box;">体化为转型方向，依托北海铁山港石化</span><span style="box-sizing: border-box;">基地、钦州石化产业园和茂湛石化基地</span><span style="box-sizing: border-box;">等平台，打造高端石化产业集群。整合</span><span style="box-sizing: border-box;">海南国际旅游岛、北海银滩和湛江“五</span><span style="box-sizing: border-box;">岛一湾”等优质资源，培育旅游产业集</span><span style="box-sizing: border-box;">群，发展生态观光、边境旅游、特色文化、</span><span style="box-sizing: border-box;">民俗风情和健康养生等旅游业态，共建</span><span style="box-sizing: border-box;">粤桂琼滨海旅游精品品牌、国际休闲旅</span><span style="box-sizing: border-box;">游目的地。</span></p></section><section style="text-align: center;margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="1.0747331" data-w="562" src="http://mmbiz.qpic.cn/mmbiz_png/j8bTq15u0mjSwkhLkJTBiaH4JD00InUqTxiaANlCFLpFA1MmS20pgJibiaEnkshcI1WSAhu3OutXWRUp9a8oJW661w/640?wx_fmt=png" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="png"  /></section></section><section style="margin: 0.5em 0px;text-align: left;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(21, 103, 167);color: rgb(255, 255, 255);padding-left: 5px;padding-right: 5px;margin-bottom: 4px;letter-spacing: 1px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">（四）建立区域协调发展机制</p></section><section style="height: 2px;width: 100%;background-color: rgb(0, 0, 0);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">彻底废除妨碍资源要素自由流通交<span style="box-sizing: border-box;">换的地方性政策，加快构建统一、开放、</span><span style="box-sizing: border-box;">有序的市场体系，实现金融市场与产权</span><span style="box-sizing: border-box;">交易市场、旅游市场、科技市场一体化</span><span style="box-sizing: border-box;">发展，推动土地资源高效调配、人口与</span><span style="box-sizing: border-box;">劳动力自由流动，有效提高资源配置效</span><span style="box-sizing: border-box;">率。构建公共事业协作机制。推进科教</span><span style="box-sizing: border-box;">文卫等公共服务事业合作建设与资源共</span><span style="box-sizing: border-box;">享，促进社会保障服务一体化建设；强</span><span style="box-sizing: border-box;">化生态环境联防联治，共建蓝色生态湾</span><span style="box-sizing: border-box;">区，推进流域跨界治理和大气污染联合</span><span style="box-sizing: border-box;">防治合作，加强防洪抗台、地质灾害预</span><span style="box-sizing: border-box;">防等灾害防治合作，探索建立都市圈内</span><span style="box-sizing: border-box;">救灾应急行动协作机制。创新利益共享</span><span style="box-sizing: border-box;">机制。实现税收征管、自然资源资产管</span><span style="box-sizing: border-box;">理调配、生态补偿和投融资保障等方面</span><span style="box-sizing: border-box;">利益的协调、互利共赢。</span></p></section></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.3692308" data-w="65" src="http://mmbiz.qpic.cn/mmbiz_gif/ibWCnRAEsMdMqxtHuIGiansGjGuJYHs6VeicJ09g5J3ecO56JIk4iaYzV53MzsLaOgkicNrAtLbCsTSk3iazibEo9gSiaQ/640?wx_fmt=gif" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="gif"  /></section></section><section style="margin-top: 10px;margin-bottom: 10px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;box-sizing: border-box;"><section style="margin-bottom: -10px;box-sizing: border-box;"><section style="display: inline-block;vertical-align: bottom;width: 6px;margin-left: 5px;box-sizing: border-box;"><section style="width: 2px;margin: auto;height: 16px;background-color: rgb(17, 19, 22);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 6px;height: 6px;border-radius: 50%;background-color: rgb(17, 19, 22);box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="display: inline-block;vertical-align: bottom;width: 20%;box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="display: inline-block;vertical-align: bottom;width: 6px;box-sizing: border-box;"><section style="width: 2px;margin: auto;height: 16px;background-color: rgb(17, 19, 22);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 6px;height: 6px;border-radius: 50%;background-color: rgb(17, 19, 22);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="transform: rotate(0deg);margin-bottom: -5px;width: 5px;height: 5px;background-color: rgb(255, 255, 255);box-sizing: border-box;line-height: 0;"><br  /></section><section style="border-left: 5px solid rgb(255, 222, 3);border-bottom: 5px solid rgb(255, 222, 3);border-top-color: rgb(255, 222, 3);border-right-color: rgb(255, 222, 3);box-sizing: border-box;"><section style="background-color: rgb(214, 240, 252);padding: 10px 10px 2px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">四</strong></p><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">结语</strong></p></section></section><section style="margin-left: auto;margin-top: -5px;width: 5px;height: 5px;background-color: rgb(255, 255, 255);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;border-width: 1px;border-style: solid;border-color: rgb(226, 226, 226);padding: 10px;box-shadow: rgb(226, 226, 226) 0px 16px 1px;box-sizing: border-box;"><section style="box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><span style="box-sizing: border-box;">基于经济社会数据和断裂点模型进</span><span style="box-sizing: border-box;">行都市圈识别是一种传统的识别方法。</span><span style="box-sizing: border-box;">该方法虽然操作简单，但经济数据难以</span><span style="box-sizing: border-box;">收集，加上断裂点模型的运用中也容易</span><span style="box-sizing: border-box;">因直线距离、行政区形状等因素而导致</span><span style="box-sizing: border-box;">识别精度受到一定影响。人口迁徙大数</span><span style="box-sizing: border-box;">据依托发达的网络技术和定位技术，具</span><span style="box-sizing: border-box;">有存量大、更新快的特点，比传统的城</span><span style="box-sizing: border-box;">市间客运班次更能反映城市间内在联系</span><span style="box-sizing: border-box;">的强度大小。在最大联系法的运用下，</span><span style="box-sizing: border-box;">都市圈识别结果符合现状省际人口联系</span><span style="box-sizing: border-box;">较弱的事实，具有客观性。夜间灯光数</span><span style="box-sizing: border-box;">据具有易收集、表达直观的特点。基于</span><span style="box-sizing: border-box;">核密度方法的都市圈识别结果，更偏向</span><span style="box-sizing: border-box;">于城镇集聚连片的空间。本文采用以上3</span><span style="box-sizing: border-box;">类结果取交集进行都市圈的综合界定，</span><span style="box-sizing: border-box;">综合考虑了都市圈的发展能级、内部联</span><span style="box-sizing: border-box;">系及空间集聚特征，界定结果具有一定</span><span style="box-sizing: border-box;">的合理性。从都市圈界定结果看，三大</span><span style="box-sizing: border-box;">都市圈的发育程度仍然较低，故本文建</span><span style="box-sizing: border-box;">议可以从合理构建空间发展格局、推动</span><span style="box-sizing: border-box;">交通基础设施互联互通、促进产业协调</span><span style="box-sizing: border-box;">发展和创新协调发展机制4个主要方面</span><span style="box-sizing: border-box;">进行都市圈的发展规划，助推三大都市</span><span style="box-sizing: border-box;">圈实现更好发展，推进北部湾城市群一</span><span style="box-sizing: border-box;">体化进程。</span></p></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><br style="box-sizing: border-box;"  /></p></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.3692308" data-w="65" src="http://mmbiz.qpic.cn/mmbiz_gif/ibWCnRAEsMdMqxtHuIGiansGjGuJYHs6VeicJ09g5J3ecO56JIk4iaYzV53MzsLaOgkicNrAtLbCsTSk3iazibEo9gSiaQ/640?wx_fmt=gif" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="gif"  /></section></section><section style="text-align: center;margin: 10px 0%;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 95%;vertical-align: top;border-style: solid;border-width: 2px;border-radius: 0px;border-color: rgb(181, 180, 180);box-sizing: border-box;"><section style="margin: -5px 0% 5px;transform: translate3d(-5px, 0px, 0px);-webkit-transform: translate3d(-5px, 0px, 0px);-moz-transform: translate3d(-5px, 0px, 0px);-o-transform: translate3d(-5px, 0px, 0px);box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;vertical-align: top;background-color: rgb(252, 221, 93);padding: 5px;border-width: 0px;box-sizing: border-box;"><section style="display: inline-block;width: 100%;vertical-align: top;border-style: solid;border-width: 1px;border-radius: 0px;border-color: rgb(255, 202, 0);background-color: rgb(255, 255, 255);padding: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="margin: 10px 0% 0px;box-sizing: border-box;" powered-by="gulangu"><section style="color: rgb(100, 100, 100);font-size: 14px;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">来源：2020年07期《规划师》杂志</strong><br style="box-sizing: border-box;"  /></p></section></section><section style="margin: 0px 0% 8px;box-sizing: border-box;" powered-by="gulangu"><section style="background-color: rgb(181, 180, 180);height: 2px;box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="display: inline-block;width: 100%;vertical-align: top;padding: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="margin: 10px 0% 0px;box-sizing: border-box;" powered-by="gulangu"><section style="font-size: 14px;color: rgb(100, 100, 100);line-height: 1.8;box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">新媒体编辑：刘晓莹</p></section></section><section style="margin: 10px 0%;box-sizing: border-box;" powered-by="gulangu"><section style="font-size: 14px;line-height: 1.8;color: rgb(100, 100, 100);box-sizing: border-box;"><p style="margin: 0px;padding: 0px;box-sizing: border-box;">审读：刘芳</p></section></section></section></section></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><br style="box-sizing: border-box;"  /></p></section><section style="margin: 0.5em 0px;box-sizing: border-box;" powered-by="gulangu"><section style="padding: 5px;background-color: rgb(21, 103, 167);box-sizing: border-box;"><section style="display: inline-block;width: 100%;border-color: white;padding: 10px;border-style: solid;border-width: 1px;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><section style="text-align: center;color: rgb(255, 255, 255);font-size: 14px;box-sizing: border-box;" powered-by="gulangu"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">文章全文详见《规划师》2020年07期</strong></p><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;">《</strong>基于多源数据的北部湾城市群都市圈识别与发展规划建议<strong style="letter-spacing: 0px;box-sizing: border-box;"><span style="letter-spacing: 0px;line-height: 1.45;box-sizing: border-box;">》</span></strong></p></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;"><br style="box-sizing: border-box;"  /></p></section><section style="margin-top: 10px;margin-bottom: 10px;box-sizing: border-box;" powered-by="gulangu"><section style="width: 100%;font-size: 0px;box-sizing: border-box;"><section style="margin-left: 24px;border-bottom: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="float: left;margin-top: -1px;background-color: rgb(255, 255, 254) !important;box-sizing: border-box;"><section style="width: 0px;height: 8px;border-left: 1px solid rgb(156, 94, 21);margin-left: 23px;box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 16px;margin-left: 8px;box-sizing: border-box;"><section style="width: 16px;height: 8px;border-left: 1px solid rgb(156, 94, 21);border-right: 1px solid rgb(156, 94, 21);border-bottom: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 8px;height: 16px;margin-top: -8px;border-top: 1px solid rgb(156, 94, 21);border-right: 1px solid rgb(156, 94, 21);border-bottom: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="width: 8px;height: 16px;border-top: 1px solid rgb(156, 94, 21);border-left: 1px solid rgb(156, 94, 21);margin-top: -1px;box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="float: right;margin-top: -1px;background-color: rgb(255, 255, 254) !important;box-sizing: border-box;"> <section style="width: 0px;height: 8px;border-right: 1px solid rgb(156, 94, 21);margin-right: 8px;box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 16px;margin-top: -1px;box-sizing: border-box;"><section style="width: 16px;height: 8px;border-right: 1px solid rgb(156, 94, 21);border-left: 1px solid rgb(156, 94, 21);border-bottom: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 8px;height: 16px;margin-top: -8px;margin-left: 8px;border-left: 1px solid rgb(156, 94, 21);border-bottom: 1px solid rgb(156, 94, 21);border-top: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="width: 8px;height: 16px;margin-top: -1px;margin-left: 16px;border-top: 1px solid rgb(156, 94, 21);border-right: 1px solid rgb(156, 94, 21);border-left-color: rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="clear: both;box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="width: 100%;margin: -12px 0px;padding: 0px 20px;box-sizing: border-box;"><section style="text-align: center;font-size: 14px;box-sizing: border-box;" powered-by="gulangu"><p style="margin: 0px;padding: 0px;box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(227, 43, 107);box-sizing: border-box;">声明</span></strong></p><p style="text-align: left;margin: 0px;padding: 0px;box-sizing: border-box;"><span style="color: rgb(132, 81, 21);box-sizing: border-box;">《规划师》杂志社微信公众订阅号（ID：）为非盈利新媒体平台，所有转发的非原创图文来源于互联网及新媒体渠道，如果所转发图文作者或其他版权所有人认为违反了您的权益，请告知我们，我们会在24小时内删除。</span></p></section></section><section style="width: 100%;margin-top: 1em;font-size: 0px;box-sizing: border-box;"><section style="float: left;margin-top: -1px;background-color: rgb(255, 255, 254) !important;box-sizing: border-box;"> <section style="width: 8px;height: 16px;border-bottom: 1px solid rgb(156, 94, 21);border-left: 1px solid rgb(156, 94, 21);margin-top: -1px;border-top-color: rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 16px;margin-left: 8px;margin-top: -1px;box-sizing: border-box;"><section style="width: 8px;height: 16px;border-bottom: 1px solid rgb(156, 94, 21);border-right: 1px solid rgb(156, 94, 21);border-top: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 16px;height: 8px;margin-top: -8px;border-top: 1px solid rgb(156, 94, 21);border-right: 1px solid rgb(156, 94, 21);border-left: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="width: 0px;height: 8px;border-left: 1px solid rgb(156, 94, 21);margin-left: 23px;box-sizing: border-box;line-height: 0;"><br  /></section></section> <section style="float: right;margin-top: -2px;background-color: rgb(255, 255, 254) !important;box-sizing: border-box;"><section style="width: 8px;height: 16px;margin-bottom: 1px;margin-left: 16px;border-bottom: 1px solid rgb(156, 94, 21);border-right: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 16px;margin-top: -2px;box-sizing: border-box;"><section style="width: 8px;height: 16px;margin-left: 8px;border-top: 1px solid rgb(156, 94, 21);border-left: 1px solid rgb(156, 94, 21);border-bottom: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section><section style="width: 16px;height: 8px;margin-top: -8px;margin-right: 18px;border-left: 1px solid rgb(156, 94, 21);border-right: 1px solid rgb(156, 94, 21);border-top: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="width: 0px;height: 8px;border-right: 1px solid rgb(156, 94, 21);border-left-color: rgb(156, 94, 21);border-bottom-color: rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="clear: both;box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section><section style="margin-top: -1px;margin-left: 24px;border-top: 1px solid rgb(156, 94, 21);box-sizing: border-box;line-height: 0;"><section style="line-height: 0;width: 0px;"><svg viewbox="0 0 1 1" style="vertical-align:top;"></svg></section></section></section></section><section style="margin: 0.5em 0px;text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;box-sizing: border-box;"><img data-ratio="0.3692308" data-w="65" src="http://mmbiz.qpic.cn/mmbiz_gif/ibWCnRAEsMdMqxtHuIGiansGjGuJYHs6VeicJ09g5J3ecO56JIk4iaYzV53MzsLaOgkicNrAtLbCsTSk3iazibEo9gSiaQ/640?wx_fmt=gif" style="vertical-align: middle;max-width: 100%;box-sizing: border-box;" data-type="gif"  /></section></section><section style="margin: 8px 0% 0px;text-align: left;transform: translate3d(0px, 0px, 0px);-webkit-transform: translate3d(0px, 0px, 0px);-moz-transform: translate3d(0px, 0px, 0px);-o-transform: translate3d(0px, 0px, 0px);box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;vertical-align: top;box-sizing: border-box;"><section style="background-color: rgb(197, 36, 36);color: 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translate3d(40px, 0px, 0px);-moz-transform: translate3d(40px, 0px, 0px);-o-transform: translate3d(40px, 0px, 0px);box-sizing: border-box;" powered-by="gulangu"><section style="font-size: 12px;color: rgb(117, 114, 114);letter-spacing: 0px;line-height: 1.8;padding: 2px 0px;box-sizing: border-box;"><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">地址：广西南宁市青秀区月湾路1号南国弈园6楼</p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">邮编：530029</p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">邮箱：planner@21cn.net</p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">网址：www.planners.com.cn</p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">电话：0771-2438012</p><p style="white-space: normal;margin: 0px;padding: 0px;box-sizing: border-box;">传真：0771-2436269</p></section></section><section style="text-align: center;margin-top: 10px;margin-bottom: 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