我国北方干旱和半干旱区草地退化的若干科学问题

Some Scientific Problems of Grassland Degradation in Arid and Semi-arid Regions in Northern China

针对我国北方地区存在的严重的草地退化问题,总结、分析和探讨了草地退化成因和主要驱动机制、草地生态建设的地域性特点、草地经营管理的有效政策等科学问题,提出了存在问题的原因和相关对策。

Aimed at status of grassland serious degradation in arid and semi-arid regions in northern China, the scientific problems involved in the cause and diving mechanism of grassland degradation, territorial characteristics of grassland ecological reconstruction, and appropriate policies of grassland management and production were analyzed and discussed. The reasons of problems produced and related strategies were pointed out.