丹江口库区生态环境现状定量分析评价

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.

Quantitative Analysis and Evaluation of the Eco-Environment Situation of the Danjiangkou Reservoir Area

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 w...