欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报

• 研究报告 • 上一篇    下一篇

两种除草剂对棉田节肢动物群落多样性指数的影响

王向阳1,2;邹运鼎1;孟庆雷1;章炳旺1,3;代海敏2   

  1. 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;
    3安徽省安庆市植保站,安庆 246001

  • 收稿日期:2004-05-21 修回日期:2004-08-30 出版日期:2005-03-18

Effects of herbicides on diversity indices of cotton field arthropod community

  

  • Received:2004-05-21 Revised:2004-08-30 Online:2005-03-18

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3.099,B-CK的t值为2.449,t>t0.05=2.228,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2.260,t>t0.05=2.228,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2.963,均t>t0.05=2.228,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.

关键词: 铅, 吸收, 分配, 水稻

Abstract: 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tB-CK =2.449 (t>t0.05=2.228),the difference being significant,and in the diversity of predatory subcommunity,tA-B=2.260 and tA-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 tA-CK=4.359,and that of phytophagous sub-community tA-CK=2.963,the effect being all significant (t>t0.05=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).

Key words: Lead, Uptake, Distribution, Rice (Oryza sativa L.)