基于夜间灯光数据的中国城市用地扩展类型

doi:10.11821/xb200602006

地理学报 ›› 2006, Vol. 61 ›› Issue (2): 169-178.doi: 10.11821/xb200602006

基于夜间灯光数据的中国城市用地扩展类型

卓莉^1,3, 李强^2,3, 史培军^2,3, 陈晋^2,3, 郑璟^2,3, 黎夏¹

1. 中山大学地理科学与规划学院, 广州 510275;
2. 北京师范大学资源学院, 北京 100875;
3. 北京师范大学环境演变与自然灾害教育部重点实验室, 北京 100875

收稿日期:2005-08-15 修回日期:2005-11-01 出版日期:2006-02-25 发布日期:2006-02-25
作者简介:卓莉, 女, 博士, 主要从事遥感应用与地理信息系统研究。E-mail: lizhuo2005@gmail.com
基金资助:
985工程GIS与遥感的地学应用科技创新平台资助 (105203200400006); 国家杰出青年科学基金项目 (40425008)

Identification and Characteristics Analysis of Urban Land Expansion Types in China in the 1990s Using DMSP/OLS Data

ZHUO Li^1,3, LI Qiang^2,3, SHI Peijun^2,3, CHEN Jin^2,3, ZHENG Jing^2,3, LI Xia¹

1. School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China;
2. College of Resource Science and Technology, Beijing Normal University, Beijing 100875, China;
3. Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education of China, Beijing Normal University, Beijing 100875, China

Received:2005-08-15 Revised:2005-11-01 Online:2006-02-25 Published:2006-02-25
Supported by:
985 Project' of GIS and Remote Sensing for Geosciences from the Ministry of Education of China, No.105203200400006; The National Science Fund for Distinguished Young Scholars. No. 40425008

摘要/Abstract

摘要：

针对目前在城市用地空间扩展类型的划分与识别方面存在的问题,首次提出了基于夜间灯光图像像元灯光强度的时间变化特征对城市用地空间扩展类型进行分类/识别的方法, 并应用该方法将中国1992~1998年间的城市用地空间扩展类型分成了3级7大类,进而对这些扩展类型的区域结构、空间分布和开发强度进行了分析,揭示了1992~1998年间中国城市用地空间扩展的一些主要特征。提出以像元为分析对象、并采用多级分类的方法,不仅实现了大尺度上城市用地空间扩展类型的快速识别,而且还在保证分类结果与其他相关研究结果衔接一致的前提下,提供了更为详细且符合实际的城市用地空间扩展信息。

关键词: DMSP/OLS, 灯光数据, 城市用地空间扩展类型, 城市扩展, 中国, 20世纪90年代

Abstract:

China has been undergoing widespread urbanization process at unprecedented speed since the 1990s. The urban land expansion is an important aspect of urbanization and has diversified types and characteristics, so the identification of urban land expansion types is thought to be crucial for the study of urbanization and urban development management. In view of the insufficiencies in the previous studies, this paper presented a new method for identifying the urban land expansion types based on the temporal change characteristics of light intensity of each cell obtained from the non-radiance calibrated DMSP/OLS nighttime light data of China in 1992, 1996 and 1998. According to the method, the types of urban land expansion were classified into two categories and seven subtypes as accelerated intensifying type, steadily intensifying type, decelerated intensifying type, unchanging type and unsteady type in the infilling category, and 1996 new expansion type, 1998 new expansion type in the sprawling category. In terms of the classification result, this paper analyzed the characteristics of urban land expansion types in composition structure, spatial distribution and developing intensity further, in which some meaningful conclusions were drawn. The new method presented in this paper seems to be useful because it can not only identify the types of urban land expansion on large scale rapidly and simply, but also provide more detailed and realistic information on urban land expansion on the premise of ensuring the comparability of classification result with other researches.

Key words: DMSP/OLS, nighttime light intensity image, urban land expansion types, urban expansion, China, 1990s

卓莉, 李强, 史培军, 陈晋, 郑璟, 黎夏. 基于夜间灯光数据的中国城市用地扩展类型[J]. 地理学报, 2006, 61(2): 169-178.

ZHUO Li, LI Qiang, SHI Peijun, CHEN Jin, ZHENG Jing, LI Xia. Identification and Characteristics Analysis of Urban Land Expansion Types in China in the 1990s Using DMSP/OLS Data[J]. Acta Geographica Sinica, 2006, 61(2): 169-178.

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基于夜间灯光数据的中国城市用地扩展类型

Identification and Characteristics Analysis of Urban Land Expansion Types in China in the 1990s Using DMSP/OLS Data

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