DMSP/OLS夜间灯光数据在城镇体系空间格局研究中的应用与评价——以近16年江西省间城镇空间格局为例  

ASSESSMENT AND APPLICATION OF DMSP/OLS NIGHTTIME LIGHT DATA IN THE SPATIAL STRUCTURE OF URBAN SYSTEM——A CASE OF JIANGXI PROVINCE IN NEARLY 16 YEARS

作　　者：廖兵 魏康霞 宋巍巍[2] 

机构地区：[1]江西省环境保护科学研究院,江西南昌330029 [2]环境保护部华南环境科学研究所,广东广州510655

出　　处：《长江流域资源与环境》2012年第11期1295-1300,共6页Resources and Environment in the Yangtze Basin

基　　金：国家水专项"丰水型流域水生态功能区管理示范研究"(2012ZX07501-001-06)

摘　　要：通过分析1994～2009年16a逐年DMSP/OLS的静态平均灯光数据的DN值分布情况,考虑实际空间格局分布数据需求和数据质量,选择1994、2000、2005、2009年4个年度为代表,进行江西省城镇空间格局分布应用研究,并对数据质量进行评价。结果表明:1994～2009年度江西省城镇建设用地总量数值尽管与统计数据之间存在一定的波动,但总体扩展趋势基本一致;在城镇化增长速度上,2000～2005年比1994～2000年大29.53%,2005～2009年比1994～2000年大43.57%,说明江西省城镇化发展正逐步提速,并有加快发展的趋势;景观指数分析表明江西省城镇化扩张过程中,面积越来越大,城镇间聚集度越来越高,相互影响也越来越大;城镇化形状越来越复杂;城镇间联系越来越紧密,破碎度逐步减小,城镇斑块形状变化逐步加大,发展无序程度加重。最后,针对江西省城镇空间格局发展现状,研究提出了积极发展中型城市、集约化发展特大城市、稳步扩大小城镇发展规模的建议。By analyzing the distribution of DMSP/OLS static average light data of the DN value from 1994 to 2009 year by year,the spatial pattern of distribution of Jiangxi Province was studied,and the data quality was evaluated.At the same time,considering the actual spatial pattern of distribution of data needs and data quality,1994,2000,2005 and 2009 four years were selected on behalf of the test samples.The results showed that from 1994 to 2009 the total value of urban construction land in Jiangxi Province and the statistical data existed some fluctuations and the overall expansion trend.The growth rate of urbanization during 2000-2005 was higher 29.53% than that during 1994-2000,the growth rate during 2005-2009 was higher 43.57% than that during1994-2000.This indicated that the development of urbanization in Jiangxi Province was gradually speeding up and showed the accelerating trend of the development.Landscape index analysis showed that in the expansion process of urbanization in Jiangxi Province,the aggregation between the towns and the mutual influences got higher when the area increased.In this study,more and more complex shape of urbanization was found.Besides,the close links between cities and towns increased,the degree of fragmentation gradually reduced,urban patch shape changes gradually increased,and degree of disorder development increased.Finally,active development of medium-sized cities,intensive development of mega-cities,the steady expansion of the development scale of the small towns were proposed,according to the development status of urban spatial pattern for Jiangxi Province.

关 键 词：DMSP OLS 夜间灯光数据 景观指数 城镇空间格局 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]