太湖洞庭山十种茶果间作茶园节肢动物群落组成的异同性

为揭示茶园间作果树对于节肢动物群落数量、空间格局的影响,2009年夏茶期间,于具有悠久茶-果间作历史、名茶洞庭碧螺春原产地的太湖东洞庭山选10种间作茶园,2010年春茶时节于西洞庭山选10种同类型间作茶园,调查果树的树丛之间、茶丛上层、茶丛中层、茶丛下层、地表和土壤层中各种节肢动物数量。发现:(1)两次调查结果具有较好的重现性;(2)每种供试茶园优势种害虫都是假眼小绿叶蝉Empoasca vitis Gthe和黑刺粉虱Aleurocanthus spiniferus(Quaintance)、其它主要害虫种类相同,东、西洞庭山优势种天敌相同;(3)10种茶园中茶丛上层、茶丛中层物种数多于其它层次;茶丛下层的个体数最大,主要是粉虱类和蚧类等小型同翅目昆虫;茶丛中层多样性指数稍高;(4)茶-桔、茶-板栗间作茶园物种较多;茶-腊梅间作茶园物种数、个体数较少。研究结果表明:茶园中合理地间作果树,可以增大生物多样性,即使在果树树丛之间、地表和土壤层中也拥有一定数量的节肢动物,间作明显地影响节肢动物群落的组成。

Similarity and disparity of arthropod community compositions among ten tea-intercropping plantations with different species of fruits in the Dongtingshan Mountains,Taihu Lake

In order to understand the effect of tea-fruit intercropping on the population density and spatial distribution patterns of arthropod communities,ten types of tea-fruit intercropped plantations were investigated in the East Dongtingshan Mountains,Taihu Lake,during the summer(July) harvesting season of 2009.This mountain is the original production site of the famous tea,Dongtingbiluochun,and has a long history of tea and fruit intercropping.The same experimental design;sampling the same ten types of tea-frui...