STUDY ON DYNAMIC CHANGES OF DESERTIFICATION IN YANCHI COUNTY BASED ON IDD | 基于IIDD的盐池县土地荒漠化动态变化研究
2013
Yao Yongzai, Inner Mongolia Mechanical-Electrical Professivnal Technical College,Huhhot(China) | Li Qinghe, Inner Mongolia Water Supervision Center,Huhhot(China) | Yang Guang, Inner Mongolia Agricultural University,Huhhot(China)
中国人. 论文以盐池县为研究区域,以1986、1989、1995、1999、2003、2006和2010年7期同一季相TM影像为基础数据源,采用人机交互解译法对不同时期TM影像进行解译,获得研究区不同时期不同荒漠化程度类型数据。采用层次分析法构建了荒漠化程度综合指数（IIDD）模型,对研究区25年来土地荒漠化动态变化进行了研究。研究结果表明,盐池县1986～1995年间,盐池县土地荒漠化呈发展趋势,1995～2010年间,土地荒漠化呈逆转趋势。
显示更多 [+] 显示较少 [-]英语. This paper take Yanchi county as study area,with the same seasonal TM images of 1986、1989、1995、1999、2003、2006 and 2010 as foundation data sources,interpreted the TMImages using the method of human-computer interactive interpretation,acquired the desertification data of different period and different desertification degree of the study area.Constructed the model of Intergrated Index of desertification degree,studied the dynamic changes of desertification in 25 years.The results showed that from 1986 to 1995 years,desertification had development trend in study area,from 1995 to 2010 years,desertification had reversed trend.
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