The Causes of Grassland Degradation and Countermeasures in China
The grassland area is nearly 400 million hm2 in China,accounting for more than 40％ of the land area.Grassland plays an important role in animal husbandry and environmental protection.Although China has taken many measures to curb grassland degradation,grassland deg-radation is still widely spreading due to overgrazing,abuse of arable land,climate change and other factors.In this paper,the present situation of grassland degradation in China was analyzed in detail.At the same time,the grassland degradation mechanism,the grassland ecosystem func-tion,the grassland degradation diagnosis methods,the grassland restoration and improvement,the utilization of geospatial technology and the grassland management methods were discussed in depth.What's more,the roots of grassland degradation,the characteristics of grassland degra-dation,and the control strategies of grassland degradation were analyzed deeply based on the basic situation of grassland degradation in China. The research results not only provide theoretical support for the restoration of grassland ecosystem,but also guide the improvement and restora-tion of degraded grassland and promote the sustainable development of the grassland ecological animal husbandry in China.
万方数据
维普
