林分类型对西昌紫茎泽兰入侵地地表甲虫群落的影响  

Effects of Stand Types on the Community Diversity of Ground-Dwelling Beetles in the Invaded Regions of Eupatorium adenophorum Spreng.

作　　者：亓东明[1] 

机构地区：[1]西昌学院动物科学学院,四川西昌615013

出　　处：《湖北农业科学》2013年第12期2815-2819,共5页Hubei Agricultural Sciences

基　　金：四川省青年基金项目(10ZB054);西昌学院人才引进项目(YJSSA0802;YJSA0606)

摘　　要：2010年7～9月主要采用巴氏罐诱法对四川西昌市郊紫茎泽兰入侵地5种类型林分的地表甲虫群落进行调查,共采集地表甲虫标本886份,隶属15科,其中粪金龟科、隐翅虫科和丽金龟科昆虫个体数量多,是西昌市郊林下地表甲虫的优势类群。云南松(Pinus yunnanensis)林林下地表甲虫个体数量极显著高于其他4种林分(P<0.01)。多样性分析表明,云南松林与柏木(Cupressus funebris)林林下地表甲虫丰富度指数显著高于麻栎(Quercus acutissima)林(P<0.05)。各林分类型地表甲虫优势度指数及均匀度指数差异不显著,柏木林优势度指数、均匀度指数最高。云南松林与冷杉(Abies sp.)林、车桑子(Dodonaea viscose)灌丛林林下地表甲虫多样性指数差异极显著(P<0.01)。相似性研究表明,不同林分类型地表甲虫群落相似性多为中等不相似及中等相似,仅冷杉林和车桑子灌丛林为极不相似。研究结果表明,西昌市郊各类型林分地表甲虫组成和数量分布与天然林存在一定差异,建议对人工纯林进行林分改造以增加生物多样性。The diversity of ground-dwelling beetles in 5 stand types from the suburbs of Xichang city was investigated with the bait-traps method.886 beetles’ specimens were gathered and belonged to 15 families.The Geotrupidae,Rutelidae and Staphylinidae were the dominant groups whose individuals were the most.The number of individuals of ground-dwelling beetles was the highest in the Pinus yunnanensis forest among the five stand types（P0.01）.The study of diversity showed that the richness of the ground-dwelling in Pinus yunnanensis forest and the Cupressus funebris forest were significantly higher than that of the Quercus acutissima forest（P0.05）.The dominance and evenness of the 5 stand types had no significant difference.The diversity of the Pinus yunnanensis forest had very significant difference with the Abies sp.forest and Dodonaea viscose shrub（P0.01）.The study of similarity showed that most of the similarity was middling dissimilar and middling similar,but the similarity of the Abies sp.forest and shurb was significantly different.The results showed that the composition and individuals of the ground-dwelling beetles in the 5 stand types of the suburbs of Xichang city had significant difference with the natural pure forest.It was suggested to design stand rebuilding for the artificial pure forest to increase the biodiversity.

关 键 词：林分类型 地表甲虫 群落多样性 西昌 紫茎泽兰入侵地 

分 类 号：Q958[生物学—动物学]