放牧对吉林羊草草原植物多样性的影响

The Effect of Grazing on the Plant Diversity of Aneurolepidium Chinense Grassland in Jilin Province

应用沼田真１９６９年提出的演替度（ｄｅｇｒｅｅｏｆｓｕｃｃｅｓｓｉｏｎ）计测公式，计测了羊草草地的放牧演替度，依此梯度同时应用Ｓｈａｎｎｏｎ多样性指数及其相应的均匀度计算公式，对放牧干扰下植物多样性的动态变化特征进行了比较分析．

For this paper Authors measured the grazing succession degree of Aneurolepidium chinense grassland with the formula put forward by Zhaotianzhen in 1969. Based on this degree authors compared and analysed the diversity dynamic characteristics under the grazing interference with Shannon diversity index and the eveness formula.