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《Resources and Environment in the Yangtze Basin》 2008-01
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GIS-BASED SPATIAL ANALYSIS ON RURAL SETTLEMENT CENTRALIZATION IN THE UPPER MINJIANG RIVER BASIN——A CASE STUDY OF MAOXIAN COUNTY

FENG Wen-lan~(1,2) ZHOU Wan-cun~1 LI Ai-nong~(1,2) ZHANG Bao-le~(1,2) (1. Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China; 2. Graduate Unirersity of Chinese Academy of Sciences,Beijing 100039,China)  
In this article,taking Maoxian County in Sichuan Province as a case study area,the ETM image and the national geographical database of China (including contour line, river and road) at the scale of 1: 250 000 as the major data sources,by judging from the image and investigation on the spot to obtain the spatial information of rural settlements,a quantitative analysis on the spatial centralization of rural settle- ments in the upper Minjiang River Basin was made based on the spatial analysis technique of GIS. It is found that 58. 6% rural settlements inthe study area relatively centralized in certain space while the others decentralized spatially. Most settlements (78. 2%) located in the mountain area of 1 500~2 700 m altitude, and about 55.2% in the dry valley area of 1 200~2 200 m altitude. About 80% settlements had their slopes over 15°. Most settlements had favorable status of water resource and traffic,and gathered approximately along to the traffic network in the near space while to the river system in the far as to the separated buffer space of river and road network. It is concluded that few rural settlements in the study area were inadvisa- ble for well-balanced human living and environment protection, against which reasonable countermeasures should be established by further study.
【Fund】: 中国科学院知识创新重要方向性项目(KZCX2-SW-319-01);; 四川省科技厅([2005]-172-140107);; 中国科学院成都山地所青年种子基金(Y106023)
【CateGory Index】: X171.1
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