根据河南境内南水北调中线沿线地区的土地利用数据, 分析了土地利用变化的空间特征, 并在县域尺度上分 析了不同时期土地利用的生态环境效应。结果表明, 近年来该区域耕地向建设用地的转移面积较多, 但土地利用的 整体格局并未发生显著变化, 而整个区域内土地利用变化强度的空间分布极不均匀。中线工程施工以来, 沿线地区 生态环境状况总体上有所改善。

Based on the land use data in the Middle Route of South2to 2North Water T ransfer Project(SNWT P) in Henan Prov2 ince, the spatial characteristics of land use change were analyzed, and the eco 2environmental effects of land use in different peri 2 ods at the county scale were investigated. The results indicated that a large area of cultivated land has become the construction land in recent years, but the overall pattern of land use has not changed significantly. Over the whole area, the spatial distribu2 tion of land use change intensity is extremely uneven. In addition, since the construction of Middle Route of SNWTP, the ecolog2 ical environment has improved in general. Key words: land use; Middle Route of SNWT

河南省教育厅科学技术研究重点项目( 12B17008)