生态环境的区域差异

近10年中国土地利用格局及其演变

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  • 1. 中国科学院遥感应用研究所, 北京 100101;
    2. 中国科学院地理科学与资源研究所, 北京 100101
王思远 (1972- ), 男, 博士, 主要从事GIS、模式识别、环境遥感研究。E-mail: siyuan_w@cmmail.com

收稿日期: 2001-10-10

  修回日期: 2001-12-24

  网络出版日期: 2002-09-25

基金资助

中国科学院知识创新工程重大项目 (KZCX1-Y-02)

Spatial Pattern Change of Land Use in China in Recent 10 Years

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  • 1. Institute of Remote Sensing Applications, CAS, Beijing 100101, China;
    2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

Received date: 2001-10-10

  Revised date: 2001-12-24

  Online published: 2002-09-25

Supported by

The Knowledge Innovation Project of CAS, No.KZCX1-Y-02

摘要

在遥感技术与GIS技术的支持下,通过1:10万中国土地利用数据库经过分层提取,生成中国土地利用类型空间分布格局数据库,在此基础上对中国土地利用空间格局进行了分析;而后在引入景观多样性指数、优势度指数、均匀度指数、破碎度指数以及土地利用重心迁移模型和景观类型转移模型的基础上,对中国土地利用景观格局及其空间演变模式进行了定量分析。研究结果表明:10年间,中国耕地重心向北偏东偏移20.93 km左右,林地重心向南偏西移动20.35 km,草地重心向南偏西方向迁移了18.45 km,建设用地重心向南偏东移动,而未利用地重心则向西北偏移7.21 km。

本文引用格式

王思远, 刘纪远,张增祥,周全斌,王长有 . 近10年中国土地利用格局及其演变[J]. 地理学报, 2002 , 57(5) : 523 -530 . DOI: 10.11821/xb200205003

Abstract

In order to study the change of land use/land cover, the technologies of remote sensing and GIS were used to analyze the spatial pattern change of land use in recent ten years, China. Firstly, the landscape types of land use in China were divided into six main types and 26 sub-types. Then the land use classification information was extracted from the raster database of 1:100000 scales resource and environmental database. Secondly, the mathematical methodology dealing with landscape-ecology was explored and developed for study on spatial pattern and spatial-temporal changes of land use, including the indexes of the landscape diversity, the landscape dominant, the landscape homogeneity and the landscape broken. According to these landscape indexes of spatial patterns, a clear picture of the interference degree caused by human activities can be made. Thirdly, the change of the land use gravity center and the transition matrix of landscape types of land use in ten years were calculated and the spatial pattern changes of land use were analyzed.

参考文献


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