摘要
以南水北调中线工程的主要淹没区和水源地——丹江口库区为研究区域,利用遥感数据、数字地形数据和气象数据,选取水热条件、地形地貌、土地覆盖和土壤侵蚀等评价因子,对库区的自然生态环境现状进行定量分析评价。结果表明:库区的自然生态环境现状整体一般偏好,较好的占总面积的43%,一般的占47%,较差的占10%。生态环境质量存在海拔地带分异和区域差异,低海拔地段相对较好,中高海拔地段相对较差;中东部地区相对较好,北部和西部相对较差。文章分析了影响生态环境质量的主要因素,同时提出了保护与改善生态环境的几点措施。
Danjiangkou reservoir area is the main submerged area and water source area of the Middle Route of the South-to-North Water Transfer Project.Using remote sensing data,and digital terrain data and meteorological data,and choosing heat and water conditions,topography,soil erosion and land coverage as evaluation factors,the natural eco-environment situation is analyzed and assessed quantitatively.The results show that the environment quality of the Danjiangkou reservoir area is general and slightly good as a whole with 43% good of total,47% general,10% poor.Eco-environment quality has elevation area differentiation and regional differences.The quality of low altitude area is relatively good,middle and high altitude areas relatively poor;and the middle-eastern areas are relatively good,northern and western relatively poor.In this paper,the effect factors of the eco-environmental quality are analyzed,and some measures for improving and protecting eco-environment are put forward.
出处
《南水北调与水利科技》
CAS
CSCD
2010年第5期2-6,共5页
South-to-North Water Transfers and Water Science & Technology
基金
国家自然科学基金项目"丹江口库区可持续发展的生态建设与土地利用研究"(40871260)
关键词
南水北调
生态环境评价
丹江口库区
the Middle Route of the South-to-North Water Transfer Project
eco-environment evaluation
Danjiangkou reservoir area
