栗链蚧空间分布型的初步研究

A primary study on the spatial pattern of Asterolecanium castaneae Russell

运用７种聚集度指标，测得栗链蚧在板栗林内的空间分布型属随机分布。通过方差分析、Ｆ检验和ＳＳＲ测验，栗链蚧在板栗树冠上、中、下３层间虫口均数差异为：上层与中层不显著，而下层与中层及下层与上层间均显著。

Use of 7 tests of index of collective rate showed that the spatial pattern of A.castaneae is belong to the random distribution in the chinese chestnut forest.And by variance analysis,F test and SSR test,the variance of average density of A.castaneae of the tree crown showed that there arnt difference between low layer and middle layer,there are significantly difference between low layer and middle layer,low layer and up crown layer. Authors address Wuyi County Taoxi Forest Station of Zhejiang Province,321204 PRC