围封禁牧对草场植被群落恢复作用分析

Enclosed grazing prohibition preliminary analysis of the pasture vegetation recovery effect

通过采用遥感与地面监测相结合以及入户访问调查为辅助手段的方法,对阿巴嘎旗一片过度放牧导致严重退化的草场进行跟踪调查。对比围封禁牧前后的草场植被变化情况得出以下结论:因为过度放牧导致的退化草原,在三年的全封闭禁牧修养以及一定降水的辅助作用下,可以恢复到中、轻度退化程度,其中禁牧的作用大于雨水的影响;通过调查还可知:NDVI数据的使用需要结合地面调查数据才更加科学客观。

Based on the combination of remote sensing and ground monitoring,with the aid of household interview survey method,we conducted a tracking investigation about excessive grazing pastures in Abaga.We draw the following conclusions bycontrast the changes before forbidding grazing and after.Under these conditions that forbidding grazing for three years abaundant precipitations,grassland degradation caused by overgrazing can be restored to the medium,mild degradation degree,of which the effect of grazing prohibition is greater than the influence of rain;And the use of NDVI data need combined with the ground survey data to more scientific and objective.