水土保持研究2012，Vol.19Issue(3)：119-124,128,7.
基于SWAT模型的长江源土地利用／土地覆被情景变化对径流影响研究
SWAT Model of Runoff Study under Different Land Use Land Cover Scenarios in Source Region of the Yangtze River
摘要
Abstract
Land use and land cover change play an important role in catchment hydrology cycle. In order to an- alyze the hydrology effect caused by land use and land cover change, runoff and depth of runoff in the source region of the Yangtze River basin was estimated based on land use and land cover scenarios and SWAT mod el. The result showed： runoff decreased 16.7% with 304.12 m3/s and depth of runoff decreased 14.02 mm under the situation of forest and grass land covering whole area of the basin% runoff increased 16. 1% with 424.32 m3/s and depth of runoff increased 13.49 mm when the forest and grass land area changed into sand and bare land; runoff and depth of runoff increased most when there were no forest and grass land, the runoff reached to 469.67 m3/s, increased 28.4%, depth of runoff increased 23.88 mm; there was a little increase of forest and grass land growing perfectly, runoff and depth of runoff increased 5.6% and 4.72 mm. It is obvious that increase of forestland and grassland made the runoff decrease and the increase Of sand and bare land led to rise of runoff.关键词
SWAT/径流模拟/土地利用／土地覆被/情景变化Key words
SWAT/runoff simulation/land use and land cover scenario scenarios change分类
天文与地球科学引用本文复制引用
李佳,张小咏,杨艳昭..基于SWAT模型的长江源土地利用／土地覆被情景变化对径流影响研究[J].水土保持研究,2012,19(3):119-124,128,7.基金项目
国家自然科学基金项目“长江源区土地覆被水文效应模拟与分析” （）
