采用G-test、Sorensen Classic相似性指数和Jaccard Classic相似性指数比较浙江省舟山市受松材线虫Bursaphelenchus xylophilus侵染后形成的湿地松Pinus elliottii杉木Cunninghamia lanceolata混交林、马尾松P. massoniana疏林、马尾松纯林和黑松P. thunbergi马尾松混交林等4种代表性的松林类型中的节肢动物群落的组成，同时采用采用Chao 1指数和ACE指数对4种林型的总物种丰富度进行了估计。研究结果表明，4种不同的松林类型共捕获513种共55 141个个体，隶属15目110科。4种松林类型中节肢动物群落的科数、物种数和个体数量都有显著差异（科数G₃＝9303，P＝0026；物种数G₃＝57.362，P＝0.000；个体数G₃＝2 767.568，P ＝0.000）。马尾松疏林和马尾松纯林中节肢动物群落的相似性最，湿地松杉木混交林和黑松马尾松混交林这2种针叶混交林内节肢动物群落相似性最低。估计全部节肢动物群落的物种丰富度为586.47（ACE指数）和634.8±31.5（Chao 1±SD）种。

Based on G-test, Sorensen Classic incidence_based sample similarity index and Jaccard Classic sample similarity index, the composition of arthropod community in 4 representative pine forests  were compared in Zhoushan city, Zhejiang Province. The forests had been infested by Bursaphelenchus xylophilus(Steiner et Buhrer Nickle), including mixed stands of Pinus elliottii and Cunninghamia lanceolata, sparse masson pine stands, pure Masson pine stands and mixed stands of P. thunbergii and P. massoniana. Meanwhile, the total species richness of the four forest types was estimated using Chao 1 index and ACE index. The results showed that total 55 141 individuals representing 513 species belonging to 110 families and 15 orders were found in the pooled samples. There was significant difference in the number of families (G₃＝9.303, P＝0.026), the number of species (G ₃＝57.362，P＝0.000), and the number of individuals of arthropod co  mmunity (G₃＝2 767.568，P＝0.000), among the four pine forest types. The arthropod community similarity between sparse Masson pine stands and pure Masson pine stands was highest, whereas the lowest similarity was between the two mixed forest stands. The species richness was 586.47 and 634.8±31.5, respectively, estimated by ACE index and Chao 1 index.