水土保持研究2017，Vol.24Issue(6)：319-326,8.
基于证据权模型的退耕还林(草)驱动力因素分析——以陕西省吴起县为例
Analysis of the Driving Forces of SLCP Based on the Weights of Evidence Model——A Case Study of Wuqi, Shaanxi Province
摘要
Abstract
Based on the data of the Landsat TM images in 2000 and 2011,the study aims to use the weights of evidence to get two classification maps of land use and cover in Wuqi County by interpreting remote sensing and GIS technology integration space,then to search the evolution pattern and the driving mechanism of Sloping Land Conversion Program (SLCP) in 154 villages of Wuqi during the two years.The results showed that the area of cultivated land in Wuqi reduced significantly,while the forestland and grassland area increased obviously in the past 11 years.84.6％ of farmland was converted into forestland and grassland.The slope gradient,the distance from highway,and the per capita arable land area have the positive correlation with the distribution of SLCP;the distribution of SLCP and elevation have an inverted U-shape relationship;road density and the distribution of SLCP are negatively correlated,which is not significant;the area of SLCP in sunny slop is greater than in shady slop;the distance to rural roads has no significant effect on the distribution of SLCP.Among the variables related to meteorological data,annual average relative humidity and SLCP are invertedly U-shaped correlated,and 20-20 average annual precipitation and the distribution of SLCP are positively correlated.关键词
退耕还林(草)/驱动力/证据权模型/GIS遥感解译/吴起县Key words
Sloping Land Conversion Program/driving forces/the weights of evidence model/GIS remote sensing interpretation/Wuqi County分类
管理科学引用本文复制引用
度阳,张道军,姚顺波..基于证据权模型的退耕还林(草)驱动力因素分析——以陕西省吴起县为例[J].水土保持研究,2017,24(6):319-326,8.基金项目
研究得到林业公益性行业科研专项“退耕还林工程效益监测、评估与优化技术”(201504424)和国家自然科学基金“空间变参数成矿预测信息研究综合模型”(41602336)的联合资助 （201504424）
