稻田节肢动物群落相似性的研究

本文利用在广东省阳江市、福建省福州市效区两地的田间调查资料,研究不同生境区稻田节肢动物群落的相似性并进行聚类分析。经用欧氏距离的公式测定不同群落实体之间的相似性指数,表明在同一个地区的不同稻田,节肢动物群落的结构是基本相似的;通过比较福州与阳江的材料及相似指标,可以看出这两个地方的群落是有差异的。聚类结果反映了不同生境区的景观及生态异同性。

STUDIES ON THE SIMILARITY OF ATHROPOD COMMUNITIES IN PADDY FIELDS

This paper deals with studies on the similarity of the athropod communities in paddy fields located in different habitats and their cluster analysis by using the data obtained from both Yangjing County, Guangdong Province and the suburban districts of Fuzhou, Fujian Province. The formula of Eculidean distance was used to measure the similarity index between the different communities. The results showed that the structure of the communities in the different habitats of the same district were basically similar. It could be shown that there were some differences in the commmunities betweeen Yangjiang and Fuzhou by comparing the similarity indices. The cluster analysis indicated that the communities in different habitats could be clustered at larger values of the similarity index and could provide farmers with references for 1PM.