基于RS和GIS的陕北长城沿线土地沙漠化研究  

Research on the Land Desertification along the Great Wall in Northern Shaanxi Province Based on RS and GIS

作　　者：车自力[1] 封建民[1] 

机构地区：[1]咸阳师范学院资源环境与城市科学系,陕西咸阳712000

出　　处：《安徽农业科学》2009年第6期2803-2805,共3页Journal of Anhui Agricultural Sciences

基　　金：陕西省教育厅科研专项计划项目(99JK128);咸阳师范学院重点项目(05xsyk101)

摘　　要：应用遥感和GIS技术方法,利用2005年遥感影像数据对陕北长城沿线地区的沙漠化进行分析。研究结果表明,2005年研究区沙漠化面积已达11 879.17 km2,占监测区总面积的45.2%,以草场沙漠化为主。在空间分布上,沙漠化土地主要集中分布研究区北部毛乌素沙地的东南部边缘。沙漠化最为严重的是榆林市,较为严重的是定边县和神木县,较轻的是靖边县和横山县,其沙漠化率分别为63.91%、45.11%、42.82%、36.24%和22.45%。Based on the RS and GIS technology and other related methods, this study aimed to analyze the desertification status by using the remote sensing phantom data of the area along the Great Wall in North Shaanxi Province 2005. The result showed that the desertified land in the study area has reached 11 879.17 km^2 , occupied 45.2% of the whole region. The result further indicated that the most serious desertification occurred in the Yulin city, followed by Dingbian County and Shenmu County, while the Jingbian County and Hengshan County had lower desertified ratio, their desertification ratio was 63.91%, 45.11%, 42.82%, 36.24% and 22.45 %, respectively.

关 键 词：陕北长城沿线 沙漠化 遥感 GIS 

分 类 号：S127[农业科学—农业基础科学]