生态经济思想与我国干旱半干旱地区的开发和建设

Ecolomic Thought and the Exploitation and Construction of Arid and Semi-arid Regions in China.

一、一个广袤而重要的地区比较一致的看法,年降水量400mm 等值线是我国湿润地区与干旱地区的分界线。这条线东自大兴安岭起,向南偏西经坝上草原,过陕北到兰州,再到拉萨。这条线以北以西地区都属于干旱半干旱地区。在干旱与半干旱地区之间,也有一条分界线,大致是东起二连浩特,

Based on the analysis of existing problems in arid and semi-arid regions,this paper putsforward the strategies using ecolomic thought to the exploitation and construction of aridand semi-arid regions.