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

Abstract

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 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).

Key words: Cotton field, Herbicide, Arthropod community, Diversity index

CLC Number:

Q958.11

WANG Xiangyang, ZOU Yun ding, MENG Qinglei, ZHANG Bingwang . Effects of herbicides on diversity indices of cotton field arthropod community.[J]. Chinese Journal of Applied Ecology, 2005, 16(3): 514-518.

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