不同林分类型对昆虫群落多样性的影响

发布时间：2018-05-01 12:36

本文选题：林分类型 + 昆虫群落多样性　；参考：《生态学报》2017年07期

【摘要】：为研究近自然森林经营下的华北落叶松人工林不同林分类型对昆虫群落多样性的影响,以塞罕坝自然保护区内的华北落叶松纯林和混交林作为研究对象,对6种不同林分类型中的昆虫群落结构进行了研究。共获得昆虫标本9542头,隶属于7目,68科,187种,以双翅目、半翅目和鞘翅目为优势类群。研究结果表明:6种林分类型中的昆虫在物种和个体数上存在差异,相似性分析显示群落结构均不相似;群落多样性指数分析表明华北落叶松纯林和其它类型的混交林均具有较高的丰富度指数和多样性指数;主成分分析表明各林分类型中捕食性类群和寄生性类群是影响昆虫群落结构的主要因素,且捕食性类群和寄生性类群对植食性类群的控制作用较强;稳定性分析显示6种林分类型昆虫群落结构均具有较高的稳定性。
[Abstract]:In order to study the effect of different stand types on insect community diversity of larch plantations under near-natural forest management, the pure and mixed larch forests in Saihanba Nature Reserve were used as the research objects. The insect community structure in 6 different stand types was studied. A total of 9542 insect specimens were obtained, belonging to 7 orders, 68 families and 187 species. Diptera, Hemiptera and Coleoptera were the dominant groups. The results showed that there were differences in species and individual number of insects in the 6 types of stands, and the similarity analysis showed that the community structure was not similar. Community diversity index analysis showed that both pure larch forests and other mixed forests had higher richness index and diversity index. Principal component analysis (PCA) showed that predatory and parasitic groups were the main factors affecting insect community structure, and predatory and parasitic groups had strong control over phytophagous groups. The stability analysis showed that the insect community structure of all the 6 forest types had high stability.
【作者单位】：河北农业大学林学院;河北省林木种质资源与森林保护重点实验室;
【基金】：河北省自然基金资助项目(C2009000592) 国家自然基金资助项目(30771739)
【分类号】：S718.7

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