上海外环绿地闵行段不同植被类型下土壤有害动物的群落结构

为探讨上海闵行段外环绿地不同植被类型下土壤有害动物的群落组成、群落多样性及其与理化因子的关系，于2008年11月至2009年7月，对上海闵行段外环绿地6个样地的土壤动物群落按凋落物层和0～15 cm土层按季节进行调查研究。共获得土壤有害动物共359只，隶属于昆虫纲8目23科。其中凋落物层共获得土壤动物242只，隶属7目19科，优势类群为蚁科、管蓟马科和蚧科幼虫，真土层共获得土壤有害动物117只，隶属于4目8科，优势类群为蚁科。相对于常绿阔叶林和落叶针叶林，落叶阔叶林表现出较高的类群数、密度以及群落多样性。各样地pH和总氮均存在显著差异，土壤有害动物主要类群的密度多与总氮和总磷含量相关（〖WTBX〗p〖WTBZ〗<005）。〖

COMMUNITY STRUCTURES OF SOIL HARMFUL ANIMALS INDIFFERENT VEGETATION TYPES IN OUTER RINGGREENBELTS OF MINHANG DISTRICT,SHANGHAI 

In order to discuss the composition and community diversity of soil harmful animals,and their relationship with soil environmental factors in different vegetation types,we chose two sites which located in the opposite side of the out ring expressway in green belts at Shanghai Outer Ring Expressway.The soil animals were collected in litter layer and 0～15 cm of soil in 4 seasons during the study period from November 2007 to July 2008.A total of 359 soil harmful animals were collected,belonging to 8 orders and 23 families.242 soil harmful animals were collected in litter layer,belonging to 7 orders and 19 families,in which the dominant groups were Formicidae，Phlaeothripidae，Persimmon Scales.And 117 soil harmful animals were collected in soil layer,belonging to 4 orders and 8 families.The dominant group was Formicidae in soil layer.The deciduous broad leaved forest showed higher group number,density and community diversity than deciduous coniferous forest and evergreen broad leaved forest.There was significant difference between pH and total nitrogen.The density of major groups were clearly relative to total nitrogen and total total phosphorus(〖WTBX〗p<005〖WTBZ〗).〖