两种除草剂对棉田节肢动物群落多样性指数的影响  

Effects of herbicides on diversity indices of cotton field arthropod community.

作　　者：王向阳[1] 邹运鼎[1] 孟庆雷[1] 章炳旺[1] 代海敏 

机构地区：[1]安徽农业大学,合肥230036 [2]全国农作物病虫测报网安徽省萧县区域站,萧县235200

出　　处：《应用生态学报》2005年第3期514-518,共5页Chinese Journal of Applied Ecology

基　　金：安徽省自然科学基金资助项目 ( 95 农 0 5 ) .

摘　　要：系统地研究了棉田地面和棉株节肢动物群落及各亚群落施用克无踪 (A)、高盖 (B)与对照 (CK )之间在群落生物多样性、丰富度和均匀度的差异 .结果表明 ,对地面肉食动物群落生物多样性 (H′)的A CK的t值为 3 0 99,B CK的t值为 2 4 49,t>t0 0 5 =2 2 2 8,差异显著 ;地面植食动物亚群落的 (H′)A CK的t值为 2 377,A B为 2 2 6 0 ,t >t0 0 5 =2 2 2 8,差异均显著 .棉株节肢动物群落及亚群落A CK、B CK和A B之间差异不显著 .地面节肢动物亚群落丰富度A CK的t值为 4 759,地面植食类节肢动物亚群落为4 359,地面肉食节肢动物亚群落为 2 96 3,均t>t0 0 5 =2 2 2 8,表明A与CK之间差异显著 ;在均匀度上 ,A和B及A CK、B与CK之间两类群落及亚群落上差异均不显著 .A和B对棉株节肢动物群落影响很小 .施用A和B及CK的生物多样性的变化总趋势一致 .This paper studied the differences of the diversity,abundance and evenness of arthropod community and sub community in cotton field among treatments haloxyfor k (A),paraquat (B) and contrast (CK).The results showed that in the diversity of phytophagous sub community, t A-CK =3.099 and t B-CK =2.449 ( t>t 0.05 =2 228),the difference being significant,and in the diversity of predatory sub community, t A-B =2.260 and t A-CK =2 377 ( t>t 0.05 =2 228),the difference being also significant.In the arthropod community and sub community,no significant difference was found for A CK,B CK and A B.The abundance of arthropod community t A-CK =4.359,and that of phytophagous sub community t A-CK =2.963,the effect being all significant ( t>t 0.05 =2 228).No significant difference was found in the evenness of arthropod community and sub community for A B,A CK and B CK.The biodiversity had the same change trend for treatments haloxyfor R (A) paraquat (B) and contrast (CK).

关 键 词：棉田 除草剂 节肢动物群落 多样性指数 

分 类 号：S482.4[农业科学—农药学]