春季草坪害虫群落种类丰富度与多样性研究

Study on Rich ness and Diversity of Turfgrass Pest Community in Dongzhiyuan in Spring

研究是 2 0 0 0年 4 6月在董志塬进行的。研究结果证明 :草坪害虫群落种类丰富度和多样性指数分别为 2 0 .514和 4 .0 2 2 ,而当地冬麦麦田的对应指标分别是 11.357和 1.0 2 7。

The study was conducted done from April to June, 2000 in Dongzhiyaan. The results show that the indice of species rich ness and diversity are 20.514 and 4.022 on the lawn, respectively, and 11.357 and 1.027 on the winter wheat. The author also forwarded the reson that caused, why the difference.