摘要
1990～2000年间，河西地区土地利用方式发生了较大的变化。耕地面积和居民地、工矿、交通等建设用地持续扩大，草地、未利用地和水域面积趋于减少；动态过程以未利用地向耕地和建设地转化，草地向耕地转化最为明显。主要土地利用转变类型大多与耕地有关。土地利用／覆盖变化导致了诸多生态环境问题如：土地荒漠化、水资源短缺、水质恶化、植被破坏等，使该区的生态环境更加脆弱。
The way in which the mankind uses the land in Hexi region has been more diversified. The cultivated land and construction land, containing residing area, mining area, and transportation area have been increasing continually while grassland, uncultivated land and water area have been decreasing gradually. The dynamic processes take place particularly in the shift from the uncultivated land and grassland to the cultivated and construction land. Land use has in return brought the land coverage changes exerting enormous influence on the eco-environment,including land desertification, water resources shortage, worsening of the water quality, the vegetation destroying, etc., which causes the eco-environment more fragile in the region.
出处
《安徽农业科学》
CAS
北大核心
2006年第1期160-161,163,共3页
Journal of Anhui Agricultural Sciences
关键词
土地利用变化
生态环境效应
河西地区
Land use change
Ecoenvironmental consequences
Hexi region
