Effects of herbicides on diversity indices of cotton field arthropod community]
Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban(2005)
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, tA-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 > t0.05 = 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).
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Key words
herbicide,arthropod community,diversity index,cotton field
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