Effect of different cover crops on arthropod community diversity in a tea orchard

• Main Authors: WANG Ming-liang, LIU Hui-fen, WANG Li-li, YANG Dian-lin, WANG Yang, XIU Wei-ming, LI Gang, HUANG Jin, ZHANG Xiao-fu
• Format: Article
• Language: zho
• Published: Agro-Environmental Protection Institute, Ministry of Agriculture 2020-05-01
• Series: Journal of Agricultural Resources and Environment
• Subjects: cover crops, tea orchard, arthropods, diversity
• Online Access: http://www.aed.org.cn/nyzyyhjxb/html/2020/3/20200304.htm
• ISSN: 2095-6819; 2095-6819

The effect of different arrangements of grasses, flowering plants(Asteraceae), and legume crops on the number and diversity dynamics of arthropod communities was determined in a tea orchard in Xupingsi Village, Tanjiawan Town, Yunyang District, Shiyan City, Hubei Province. For this, 4 treatments were established:Natural grasses(CK), ryegrass+white clover(EZ), ryegrass+white clover+bluegrass+ red clover(SZ), and ryegrass+white clover+bluegrass+red clover+purple fescue+hairy raccoon+cosmos+zinnia(BZ). The community composition and dynamics of richness index, divesity index, and evenness index of arthropods were determined. The results showed that the arthropod community composition in the tea orchard with different cover crops was similar to that in the tea orchard with CK, with the largest number of Diptera and the least number of Araneae insects. Compared with that in the CK, the number of Lepidoptera increased significantly under the different cover crop treatments(<i>P</i><0.05), but no significant difference was noted among the three treatments(<i>P</i>>0.05). Homoptera insects increased significantly by 92.47%(<i>P</i><0.05)under the SZ treatment. No significant differences in the number of individuals of Coleoptera, Hymenoptera, Diptera, Hemiptera, Orthoptera, and Araneae were noted among the different treatments(<i>P</i>>0.05). The dynamics of diversity, evenness, and richness indices of arthropod communities in the tea orchard with different cover crops were basically the same; The richness index was the highest on August 26 and was higher in the tea orchard with different cover crops than in that with natural grasses on September 30. The arthropod community diversity index for EZ treatment, the diversity, richness, and evenness indices for SZ treatment, and the diversity and evenness indices for BZ treatment were significantly higher than those of the CK in the tea orchard.