地球信息科学学报 ›› 2021, Vol. 23 ›› Issue (3): 443-455.doi: 10.12082/dqxxkx.2021.200195
收稿日期:
2020-04-24
修回日期:
2020-06-12
出版日期:
2021-03-25
发布日期:
2021-05-25
通讯作者:
赵耀龙
E-mail:chenmingfa@m.scnu.edu.cn;zhaoyaolong@m.scnu.edu.cn
作者简介:
陈明发(1995- ),男,福建尤溪人,硕士,助理工程师,主要从事空间分析与政策模拟研究。 E-mail: chenmingfa@m.scnu.edu.cn
基金资助:
CHEN Mingfa1,2(), LIU Fan1, ZHAO Yaolong1,*(
), YANG Guang1
Received:
2020-04-24
Revised:
2020-06-12
Online:
2021-03-25
Published:
2021-05-25
Contact:
ZHAO Yaolong
E-mail:chenmingfa@m.scnu.edu.cn;zhaoyaolong@m.scnu.edu.cn
Supported by:
摘要:
不透水地表是衡量城市化过程与空间扩张的重要特征。本文以我国最具经济活力的城市群-粤港澳大湾区城市(以下简称大湾区)为研究区,采用重心-标准差椭圆与梯度分析等方法,探讨其1987—2017年不透水地表的时空扩张分布特征与演化趋势。结果表明:① 30年来大湾区的不透水地表面积从1839.34 km2持续增长至12 385.93 km2。城市化进程进入21世纪后明显加快,整体形成了广、深、港、澳等中心城市带动,各次级城市组团,网络结构发展的空间扩张格局。② 大湾区不透水地表重心位于广州番禺与佛山顺德交界处附近,城市建设扩张靠近大陆海岸带区域,范围不断扩大。广、莞、佛等地的城市建设极大带动了不透水地表重心与方向的变化;③ 城市建设以珠江支流与大陆海岸线为轴心扩张的特征明显,各地核心城区与海湾区域的建设扩张共同构成了大湾区的发展核心,整体形成了中心城区为主、大陆海岸线为辅的协同发展趋势。粤港澳大湾区建设已上升为国家战略,未来需进一步强化内部各城市间的要素交互,在发挥核心城区辐射引领作用的同时,充分利用沿海产业优势,带动实现大湾区的城乡融合发展。
陈明发, 刘帆, 赵耀龙, 杨光. 1987—2017年粤港澳大湾区城市群的不透水地表扩张与梯度演化[J]. 地球信息科学学报, 2021, 23(3): 443-455.DOI:10.12082/dqxxkx.2021.200195
CHEN Mingfa, LIU Fan, ZHAO Yaolong, YANG Guang. The Expansion and Gradient Evolution of Impervious Surface within the Guangdong-Hong Kong-Macao Greater Bay Area from 1987 to 2017[J]. Journal of Geo-information Science, 2021, 23(3): 443-455.DOI:10.12082/dqxxkx.2021.200195
表1
Landsat系列影像成像时间"
传感器 条代号 | TM | ETM+ | ETM | OLI | ||||||
---|---|---|---|---|---|---|---|---|---|---|
1987年 | 1991-1993年 | 1997年前后 | 2002年前后 | 2007年 | 2012年前后 | 2017年 | ||||
121/44 | 1987-12-17 | 1991-10-11 | 1997-01-10 | 2001-12-31 | 2007-11-14 | 2012-10-10 | 2017-11-01 | |||
121/45 | 1987-12-17 | 1991-10-11 | 1997-01-10 | 2002-02-17 | 2007-01-30 | 2013-10-05 | 2017-12-19 | |||
122/43 | 1987-12-08 | 1993-10-05 | 1997-11-01 | 2002-11-07 | 2007-10-20 | 2012-11-02 | 2017-12-26 | |||
122/44 | 1987-12-08 | 1993-10-05 | 1997-11-01 | 2002-11-07 | 2007-09-18 | 2012-11-02 | 2017-10-23 | |||
122/45 | 1987-12-08 | 1991-09-14 | 1997-11-01 | 2002-01-07 | 2007-09-18 | 2013-10-20 | 2017-10-23 | |||
123/43 | 1987-09-10 | 1993-10-12 | 1996-12-23 | 2001-12-29 | 2007-01-28 | 2012-12-25 | 2017-10-30 | |||
123/44 | 1987-09-10 | 1991-09-21 | 1997-09-05 | 2001-12-29 | 2007-01-28 | 2012-12-25 | 2017-10-30 | |||
123/45 | 1987-09-10 | 1993-12-31 | 1997-01-08 | 2001-12-29 | 2007-01-28 | 2012-12-25 | 2017-10-30 |
表2
1987-2017年粤港澳大湾区内部各城市不透水地表面积"
地市名称 | 1987年 | 1992年 | 1997年 | 2002年 | 2007年 | 2012年 | 2017年 |
---|---|---|---|---|---|---|---|
东莞 | 107.87 | 341.39 | 435.47 | 501.57 | 835.28 | 1042.12 | 1193.75 |
佛山 | 209.13 | 293.89 | 458.28 | 549.55 | 931.91 | 1595.31 | 1715.62 |
广州 | 334.08 | 437.49 | 504.60 | 522.14 | 723.73 | 1188.63 | 1754.50 |
香港 | 90.92 | 120.71 | 127.87 | 151.41 | 179.21 | 209.60 | 249.27 |
惠州 | 381.83 | 568.06 | 614.07 | 662.09 | 921.33 | 1071.61 | 1464.75 |
江门 | 381.33 | 585.89 | 610.46 | 1083.48 | 1106.33 | 1863.64 | 2217.92 |
澳门 | 5.00 | 6.92 | 10.78 | 12.71 | 13.61 | 15.01 | 16.00 |
深圳 | 94.86 | 352.01 | 505.84 | 528.13 | 682.27 | 804.37 | 829.22 |
肇庆 | 120.88 | 133.33 | 188.96 | 368.89 | 734.95 | 1084.56 | 1381.67 |
中山 | 55.62 | 118.85 | 193.27 | 306.39 | 455.39 | 724.67 | 888.51 |
珠海 | 57.82 | 188.39 | 259.14 | 433.98 | 513.02 | 612.08 | 674.72 |
大湾区 | 1839.34 | 3146.93 | 3908.74 | 5120.34 | 7097.03 | 10211.60 | 12385.93 |
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