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遥感技术与应用  2020, Vol. 35 Issue (5): 1178-1186    DOI: 10.11873/j.issn.1004-0323.2020.5.1178
遥感应用     
1992~2013我国干旱区城市不透水遥感制图与扩张过程分析
沈谦1(),朱长明1(),张新2,黄巧华1,杨程子1
1.江苏师范大学 地理与测绘学院,江苏 徐州 221116
2.中国科学院空天信息创新研究院 遥感科学国家重点实验室,北京 100101
Remote Sensing Mapping and Expansion Analysis of Urban Impervious Surface in Arid Areas of China from 1992 to 2013
Qian Shen1(),Changming Zhu1(),Xin Zhang2,Qiaohua Huang1,Chengzi Yang1
1.School of Geography,Geomatics,and Planning Jiangsu Normal University,Xuzhou 221116,China
2.State Key Laboratory of Remote Sensing Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100101,China
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摘要:

城市不透水地表作为城市建成区的重要环境指标和物理参数,在城市管理规划、环境评估、灾害预测、城市热岛以及气候变化等领域具有重要价值。及时准确地获取区域尺度城市不透水地表信息,对于城市发展综合规划、科学研究等具有重要意义。以DMSP(Defense Meteorological Satellite Program)和MODIS(Moderate Resolution Imaging Spectroradiometer)为主要数据,通过构建植被调节型不透水指数(Vegetation-Adjusted Impervious Surface Index, VAISI)和非线性机器学习模型支持向量回归(Support Vector Regression, SVR),完成了1992~2013年我国干旱区主要城市不透水面的22期遥感制图与变化过程聚类分析。研究结果表明:近20 a来我国干旱区城市不透水面总体上扩张幅度较大;时间变化过程上呈现显著扩张的趋势,且这一扩张在过程在2000年前后出现了提速;空间上,干旱区城市扩展的区域异质性显著,各城市不透水面扩张速度不均衡,不同等级规模城市扩张的速度差异明显。结合城市扩张动态度和城市面积聚类分析,我国干旱区主要城市的扩张过程可分为:高速扩张型、快速扩张型、中速扩张型和低速扩张型。

关键词: 不透水面干旱区DMSP城市扩张遥感    
Abstract:

As an important physical indicator parameter, urban impervious surface has important significance in urban management planning, environmental assessment, disaster prediction, energy consumption, urban heat island and climate change. Mapping impervious surface timely and accurately at a regional scale is of great value for urban development planning and scientific research. The paper takes DMSP (Defense Meteorological Satellite Program) and MODIS (Moderate Resolution Imaging Spectroradiometer) as the main data source to constructing Vegetation-Adjusted Impervious Surface Index (VAISI). Using nonlinear machine learning model: supports vector regression (SVR) achieved 22 years urban impervious surface remote sensing mapping in arid area of China from 1992 to 2013 and completed the cluster analysis on the impervious surface processing changes. The research we have done suggested that in the past 20 years, the urban impervious surface of arid area of China has shown a significant expansion trend. In 2000, expansion trend reaches its maximum. The distribution of city is very dispersed in arid area, and urban impervious surface expansion rate is unbalanced in different scale levels. According to the urban expansion dynamics and the urban impervious surface area, the expansion process of the arid regions city in China can be divided into: high-speed expansion, rapid expansion, medium-speed expansion and low-speed expansion.

Key words: Impervious surface area    Arid region    DMSP    City expansion    Remote sensing
收稿日期: 2018-10-22 出版日期: 2020-11-26
ZTFLH:  TP79  
基金资助: 国家重点研发计划项目(2017YFB0504201);国家自然科学基金项目(41201460);江苏省研究生创新计划项目(KYCX17_1691)
通讯作者: 朱长明     E-mail: shenqian_gis@163.com;zhuchangming@jsnu.edu.cn
作者简介: 沈谦(1992—),男,江苏徐州人,硕士研究生,主要从事遥感信息智能提取以及城市遥感等方面研究。Email: shenqian_gis@163.com
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引用本文:

沈谦,朱长明,张新,黄巧华,杨程子. 1992~2013我国干旱区城市不透水遥感制图与扩张过程分析[J]. 遥感技术与应用, 2020, 35(5): 1178-1186.

Qian Shen,Changming Zhu,Xin Zhang,Qiaohua Huang,Chengzi Yang. Remote Sensing Mapping and Expansion Analysis of Urban Impervious Surface in Arid Areas of China from 1992 to 2013. Remote Sensing Technology and Application, 2020, 35(5): 1178-1186.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2020.5.1178        http://www.rsta.ac.cn/CN/Y2020/V35/I5/1178

图1  研究区
数据获取时间及行列号描述
DMSPF10:1992~1994 F12:1994~1999 F14:1997~2003 F15:2000~2007 F16:2004~2009 F18:2010-20131 km分辨率灯光数据产品,共34景
MODIS

时间:2000~2013年~9月

行列号:23/04、23/05、24/04、24/05、25/04、25/05、26/04、26/05

MOD13Q1,16 d合成,共1 040景
Landsat

时间:1999~2013年8~9月

行列号:149/33、142/30、129/33、143/29、135/32、144/29、147/29、143/31、132/33

包括Landsat8 OLI、 Landsat TM影像,共11景
表1  研究所用数据源
图2  干旱区不透水面提取技术流程
城市RRMSE
银川0.82120.1205
伊宁0.77750.1758
库尔勒0.73640.1163
乌苏0.82810.1271
金昌0.78600.1492
表2  ISP估算精度评价
图3  干旱区2013年与1992年城市不透率变化制图
图4  干旱区城市扩张过程聚类分析
类别城市及地区年平均扩张速度 /km2·a-1年平均扩张动态度 /%1992年平均面积 /km22013年平均面积 /km2
高速扩张阿克苏、阿拉善左旗、阿勒泰、阿图什、博乐、昌吉、哈密、和田、金昌、酒泉、临河、塔城、吐鲁番、武威、伊宁、张掖1.5760.053.6436.63
快速扩张嘉峪关、喀什、库尔勒、石河子、石嘴山3.3444.038.7378.93
中速扩张克拉玛依、奎屯、银川6.3728.1622.7156.38
低速扩张乌鲁木齐12.9113.7394.04365.21
表3  4类城市或地区不透水变化统计结果
图5  4类城市年扩张动态度变化特征
图6  干旱区城市1992年~2013年不透水面面积变化
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