内蒙古土地荒漠化定性定量研究

A QUALITATIVE AND QUANTITATIVE RESEARCH IN INNER MONGOLIAN GRASSLAND DEGRADATION

通过对阴山北麓四旗为期5年的家计的问卷调查,和不同草地的连续样方数据等样本进行分析,对影响草地生物多样性、草地景观、草地生态功能及其生态系统的食物链、能流和物流的干扰因素进行分析,得出阴山北麓四旗土地退化的人文因素。运用现代统计模型计算出各因素所占的比重,并就土地退化的人文因素进行成因分析,得出农业文化入侵是造成土地退化的文化根源,制度安排不合理是其土地退化的制度原因。

The research shows that the transition of nomadic culture is the main cause of grassland degradation. This conclusion is based on a 5-year-long ecological survey and community investigation at four counties,which are on the north fringe of north foot of Yin Mountain.The research has analysed the seriate sampling data of different types of grassland; the factors that affect the grassland bio-diversity, eco-function and the food cycle,energy flow and matter flow of grassland eco-system. It has also worked out how many proportion that every interferential factor accounts for with modern statistical model and analysed the culture cause of fomation leading to a grassland degradation.And thus,we draw a conclusion that the invasion of booming agriculture is the culture cause of grassland degradation and implementation of the wrong policies is the policy cause of grassland degradation.