退化红壤区不同退耕还林模式昆虫群落结构及其多样性特征分析  

Insect community structure and diversity in different reforestation patterns in degraded red soil region

作　　者：刘兴平[1] 李冬[1] 张林平[1] 刘苑秋[1] 

机构地区：[1]江西农业大学园林与艺术学院,江西南昌330045

出　　处：《环境昆虫学报》2011年第4期471-477,共7页Journal of Environmental Entomology

基　　金：国家林业局退耕还林科技支撑项目(林计批字[2004]571号);江西农业大学博士启动基金项目(3140)

摘　　要：本文以江西省瑞昌市4种不同的退耕还林模式为例,系统调查4种退耕地中的昆虫种类组成,并运用物种多样性指数(物种丰富度,Simpson优势度指数、Pielou均匀度指数、Shannon-Wiener多样性指数)对退化红壤区4不同退耕地中的昆虫群落多样性进行比较,分析不同的退耕还林模式对昆虫群落多样性的影响。结果表明:在现有的4种退耕模式中,昆虫的种类和结构组成、物种丰富度、Shannon-Wiener多样性指数和Pielou均匀度指数均明显高于相应的对照组,其中以多树种混交模式中最高,速生丰产林模式中最低,林药套种模式和竹阔混交模式介于两者之间。昆虫群落的Simpson优势度指数在4种退耕地中则明显低于相应的对照组,其中以多树种混交模式中最低,速生丰产林模式中最高,林药套种模式和竹阔混交模式介于两者之间。这些结果表明,实施退耕还林可以增加退化红壤区中昆虫的种类和结构组成,而且昆虫多样性随着林木种类的增加而增加。We selected 4 different reforestation patterns as research object in degraded red soil region in Ruichang city, Jiangxi province, the species and structure composition of insect and the diversity charac- teristics of insect communities were studied through analysing the diversity indexes （species richness, Simpson dominance index, Pielou evenness, index and Shannon - Wiener diversity index） based on the investigation and collection of insects. The results showed that the composition of insect species, insect species richness, Pielou evenness index and Shannon - Wiener diversity index of insect communities in 4 rehabilitation models were significantly higher than those in the corresponding control treatments, and highest in mixed forest of multiple tree species, lowest in fast - grown forest, and the patterns of inter- plant of forest trees and medicinal plants and mixed forest of bamboo and broad leaved trees were middle between these two patterns, while Simpson dominance index in 4 rehabilitation models were significantly lower than those in the corresponding control treatments, and lowest in mixed forest of multiple tree spe- cies, highest in fast - grown forest, and the patterns of interplant of forest trees and medicinal plants and mixed forest of bamboo and broad leaved trees were middle between these two patterns. These results demonstrated that reforestation project can increase the species and structure composition and insect di-versity, which significantly with the increasing of the species of vegetations.

关 键 词：退耕还林 植被恢复 昆虫群落 多样性 退化红壤区 

分 类 号：Q968[生物学—昆虫学]