叶尔羌河流域1990—2010年生态环境变化特征  

Features of eco-environmental changes in Yarkant River Basin from 1990 to 2010

作　　者：杜清[1,2] 徐海量[1] 张广朋[3] 白玉锋 张沛[1,2] 凌红波[1] 赵新风[1] 

机构地区：[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]中国科学院大学,北京100049 [3]新疆农业大学,新疆乌鲁木齐830052

出　　处：《干旱地区农业研究》2016年第1期252-256,263,共6页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金(41171427);(31370551);(41471099);中国科学院"西部之光"人才培养计划(XBBS-2014-13)

摘　　要：利用叶尔羌河流域1990、2000年和2010年Landsat-TM影像数据和中巴资源卫星数据,结合GIS技术及生态环境状况指数计算方法,分析流域内1990—2010年流域生态环境变化特征。结果显示:1990—2010年,叶尔羌河流域生物丰度指数、植被覆盖指数和土地退化指数分别减少4.53%、4.00%和3.56%,水网密度指数整体增高了3.71%;1990、2000年和2010年,叶尔羌河流域生态环境状况指数分别为34.94、34.77和34.32,均属于较差级别,受自然和人为因素的双重影响流域生态环境趋于退化。This paper analyzed the land use change in Yarkant River Basin during recent 20 years using Landsat - TM and CBERS images from 1990, 2000, and 2010 combined with GIS and the ecological environment index calculation methods. The results showed that during the years from 1990-2010, the species richness index, vegetation coverage index and land degradation index were decreased by 4.53 %, 4.00% and 3.56%, respectively, while the water density index was increased by 3.71%. Additionally, the eco-environment condition indexes of Yarkant River Basin were 34.94, 34.77 and 34.32 in 1990,2000 and 2010, reaching a dissatisfactory level. The ecological environment became degraded by influences from both the natural and human activities.

关 键 词：叶尔羌河流域 土地利用/覆被 生态环境状况 

分 类 号：X37[环境科学与工程—环境工程]