甘宁蒙陕农牧交错区不宜大规模开垦  

Large Scale Reclamation Inadvisable to Agricultural and Pasturing Interlaced Zone in Gansu, Ningxia, Inner Mongolia and Shaanxi

作　　者：杨根生[1] 董光荣[1] 赵兴梁[1] 曲耀光[1] 李栋梁[1] 伍光和[2] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000 [2]兰州大学西北开发研究所,甘肃兰州730000

出　　处：《中国沙漠》2002年第5期409-415,共7页Journal of Desert Research

基　　金：国家重点基础研究发展规划项目"中国北方沙漠化过程及其防治研究"(G2 0 0 0 0 4870 5 ) ;中国科学院寒区旱区环境与工程研究所知识创新项目 (CACX2 10 0 2 6)资助

摘　　要：通过对甘宁蒙陕农牧交错区的自然特征和生态功能、人类活动对该区环境的影响、水资源状况、国内外开垦草原的教训等方面的分析、论证 ,说明该区不宜大规模开垦 。The climate in the agricultural and pasturing interlaced zone of Gansu, Ningxia, Inner Mongolia and Shaanxi belongs to semi arid type in temperate or warm temperate zone. The natural vegetation in this area includes forest pasture and typical steppe. This was a place where agriculture and animal husbandry took their turns in historical period despite of the generally suitability for pasturing. Because of the population increasing with time the cultivated area extended gradually and the pasturing area dwindled accordingly. Consequently, the local fragile ecology-economy-society integrated system was disturbed. Land desertification and new sand sources occurred. Sandstorms took place frequently in the down wind regions. For restraining land desertification extending and re establishing the ecological barrier the industry pattern dominated by animal husbandry must be constructed. The areas inadvisable to cultivation should be returned to forestry and grassland.

关 键 词：农牧交错区 人类活动 开垦草原 

分 类 号：F319.9[经济管理—产业经济]