两种除草剂影响下棉田节肢动物群落相似性分析  

Similarity of arthropod communities with different herbicide in cotton fields

作　　者：李桂亭[1] 江俊起[1] 邹运鼎[1] 王向阳 张新才[1] 李鹏[1] 

机构地区：[1]安徽农业大学植保学院,合肥230036 [2]全国农作物病虫测报网萧县区域站,萧县235200

出　　处：《安徽农业大学学报》2006年第2期204-208,共5页Journal of Anhui Agricultural University

基　　金：安徽省"十.五"科技攻关项目(01013011);安徽省自然科学基金项目(95-农-05)资助

摘　　要：运用群落组成相似性分析法和极点排序法研究了克无踪(A)和高效盖草能(B)两种除草剂对棉田节肢动物群落结构及其时间动态的影响。结果显示,全调查期(6月17日-8月26日)A-CK的相似系数与B-CK的相似系数之间的差异不显著,但灭生性除草剂的影响大于选择性除草剂;棉花花蕾期和结铃早期(6月17日-8月12日)地面系统植食性亚群落处理间差异极显著;棉花结铃中后期的差异不显著;总的趋势是对地面系统的影响大于棉株系统,植食亚群落大于肉食亚群落;极点排序呈现一致结果。Community composition similarity analysis and polar ordination were employed to study the effluence of two kinds of herbicides （ paraquat （A） and haloxyfor-R （B）） on the structures and dynamics of arthropod communities in cotton fields in Anhui Province. The results showed that coefficients of similarity （CS） weren＇t of significant difference between A-CK and B-CK from June 17 to Aug 26, but the effluence of extirpated herbicide paraquat was more than that of haloxyfor-R. The values of CS of phytophagous arthropod sub-community on ground in bud stage and early cotton boiling stage were of significant difference between A-CK and B-CK. Total trend presented that the effluence of the same herbicides on ground community was more than that on plant, and phytophagous arthropod sub-community was more than that of predatory sub-community.

关 键 词：除草剂 棉田 节肢动物 群落相似性 极点排序 

分 类 号：Q968.1[生物学—昆虫学]