基于层次分析法的甘南州高寒草地保护对策研究

以甘南州退化高寒草地为对象,利用层次分析法,探讨了高寒草地的退化原因和恢复治理措施的有效性。结果表明:长期超载过牧是导致高寒草地退化的主导因子。各个恢复治理措施组合权重中,围栏封育和其它措施组合,效果较好。层次分析法可为草原管理,防止草地退化、恢复治理退化草地、优化利用草地资源提供定量依据。

Research on a Protection Strategy for Alpine Grassland in Gannan State by Analytic Hierarchy Process

The degraded alpine grassland in southern Gansu was an subject to be studied.Analytic Hierarchy Process(AHP)was adopted for analyzing the causes of alpine grassland degradation and efficiency of different restoring measures were evaluated in the region.The results showed long-term over-grazing process is the main cause of alpine grassland degradation.The integrated weight values of restoring measures on different causes of alpine grassland degradation reflect the integrated effect of fencing and other measures is better.The study showed that the AHP can provide meaningful data for improving grassland management,preventing grassland from degradation,restoring degraded grassland and grassland optimalutilization as well.