测绘学报 ›› 2015, Vol. 44 ›› Issue (11): 1181-1188.doi: 10.11947/j.AGCS.2015.20140677

• 综述 •    下一篇

基于GlobeLand30的全球城乡建设用地空间分布与变化统计分析

陈军1, 陈利军1, 李然1, 廖安平1, 彭舒1, 鲁楠1,2, 张宇硕1,3   

  1. 1. 国家基础地理信息中心, 北京 100830;
    2. 西南交通大学地球科学与环境工程学院, 四川 成都 611756;
    3. 北京师范大学地理学与遥感科学学院, 北京 100875
  • 收稿日期:2014-12-23 修回日期:2015-08-03 出版日期:2015-11-20 发布日期:2015-11-25
  • 作者简介:陈军(1956-),教授,国际摄影测量与遥感学会主席,研究方向为基础地理信息建模、更新与服务。E-mail:chenjun@nsdi.gov.cn
  • 基金资助:
    国家自然科学基金重点项目(41231172);测绘地理信息公益性行业科技专项(201512028)

Spatial Distribution and Ten Years Change of Global Built-up Areas Derived from GlobeLand30

CHEN Jun1, CHEN Lijun1, LI Ran1, LIAO Anping1, PENG Shu1, LU Nan1,2, ZHANG Yushuo1,3   

  1. 1. National Geomatics Center of China, Beijing 100830, China;
    2. Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China;
    3. School of Geography, Beijing Normal University, Beijing 100875, ChinaAbstract
  • Received:2014-12-23 Revised:2015-08-03 Online:2015-11-20 Published:2015-11-25
  • Supported by:
    The National Natural Science Foundation of China(No.41231172);Surveying Mapping and Geoinformation Public Science and Technology Projects(No.201512028)

摘要: 城乡建设用地分布与变化是人类活动的直观标志和生态足迹,在环境变化研究、地理国(世)情监测和可持续发展研究等方面发挥着重要作用。以往人们对一些城市、区域或国家的城乡建设用地分布与变化进行过较为深入系统的研究,但在全球尺度上,这方面研究尚为空白。本文是利用我国自主研制的世界上首套30 m空间分辨率全球地表覆盖数据集GlobeLand30的人造地表数据层,首次开展了全球城乡建设用地的空间分布及变化的统计分析。它采用用地面积、构成占比和增量占比等主要指标,统计全球范围内城乡建设用地的空间分布及2000年至2010年10年间的变化,重点分析了2010年全球、各大洲及主要国家的城乡建设用地分布现状与地域差异,2000年至2010年全球、主要国家的建设用地变化以及其主要土地来源。研究结果表明, 2010年全球城乡建设用地总面积为118.75×104km2,占全球陆表面积的0.88%; 2000年至2010年全球城乡建设用地面积增加了5.74×104km2,变化率为5.08%,其中,中国和美国新增城乡建设用地约占全球的一半;新增城乡建设用地占用最多的是耕地,占总量的50.26%。这些为研究全球陆表人类活动的空间分布特征与变化趋势提供了翔实的信息和知识。

关键词: GlobeLand30, 全球地表覆盖, 城乡建设用地, 空间格局, 时空变化, 统计分析

Abstract: As an important anthropogenic indicator and human ecological foot print,built-up areas and its change is an essential information for environmental change analysis, geo-conditional monitoring and sustainable development. In the past, built-up areas and its change studies were mainly focused on a city, regional or nation scale, and it has not been possible to conduct a global built-up areas and its change analysis yet. This paper presented the methodology and results of the first global analysis of built-up areas and its ten year's change(2000-2010) using GlobeLand30, China's 30 meter resolution global land cover data sets-. Built-up areas, change rate and increase proportion were the major statistical variables used for the statistical analysis. The result shows that the total area of the global built-up areas is 1.1875 million km2, covering 0.88% of the total area of the global land surface; the area of global built-up areas increased 57400km2 with the variation rate of 5.08% from 2000 to 2010;and China and United Sates are the top two countries having the largest increased built-up areas, i.e., accounting over 50% of that of the global total; 50.26% of the total increased built-up areas comes from the arable land. These results provide reliable spatio-temporal information to the study of human domination of Earth's ecosystems and global monitoring.

Key words: GlobeLand30, global land cover, built-up areas, spatial distribution, temporal change, statistical analysis

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