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 ›› 2011, Vol. 22 ›› Issue (09): 2303-2308.

• 研究报告 • 上一篇    下一篇

桃园生草对桃树节肢动物群落多样性与稳定性的影响

蒋杰贤, 万年峰**,季香云,淡家贵   

  1. 上海市农业科学院生态环境保护研究所上海市低碳农业技术工程研究中心, 上海 201106
  • 出版日期:2011-09-18 发布日期:2011-09-18

Diversity and stability of arthropod community in peach orchard under effects of ground cover vegetation.

JIANG Jie-xian, WAN Nian-feng, JI Xiang-yun, DAN Jia-gui   

  1. Shanghai Research Center of Low-carbon Agricultural Engineering Technology, Ecological Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
  • Online:2011-09-18 Published:2011-09-18

摘要: 对种植白三叶草的桃园(生草桃园)和非生草桃园的桃树节肢动物群落进行分析比较.结果表明:生草桃园桃树天敌、中性类群和植食类群数量分别是非生草桃园的1.48、1.84和0.64倍,而节肢动物群落个体总数无显著差异;与非生草桃园相比,生草桃园桃树节肢动物群落丰富度(83.733±4.932)、多样性(4.966±0.110)和均匀性指数(0.795±0.014)均显著升高,而优势度指数(0.135±0.012)显著降低.稳定性指数S/NSd/Sp与非生草桃园均无显著差异,但Nn/NpNd/NpSn/Sp均显著高于非生草桃园.生草桃园桃树节肢动物群落多样性与稳定性指数Nd/NpSd/SpS/N存在显著的负相关关系,而与Nn/NpSn/Sp无相关性;非生草桃园多样性与稳定性指数Nn/NpNd/Np存在显著的正相关关系,而与其他稳定性指数无显著相关性.

关键词: 白三叶草, 桃园, 节肢动物群落, 多样性, 稳定性

Abstract: A comparative study was conducted on the arthropod community in peach orchards with and without ground cover vegetation. In the orchard with ground cover vegetation, the individuals of beneficial, neutral, and phytophagous arthropods were 1.48, 1.84 and 0.64 times of those in the orchard without ground cover vegetation, respectively, but the total number of arthropods had no significant difference with that in the orchard without ground cover vegetation. The species richness, Shannon’s diversity, and Pielou’s evenness index of the arthropods in the orchard with ground cover vegetation were 83.733±4.932, 4.966±0.110, and 0.795±0.014, respectively, being significantly higher than those in the orchard without ground cover vegetation, whereas the Berger-Parker’s dominance index was 0.135±0.012, being significantly lower than that (0.184±0.018) in the orchard without ground cover vegetation. There were no significant differences in the stability indices S/N and Sd/Sp between the two orchards, but the Nn/Np, Nd/Np, and Sn/Sp in the orchard with ground cover vegetation were 0.883±0.123. 1714±0.683, and 0.781±0.040, respectively, being significantly higher than those in the orchard without ground cover vegetation. Pearson’s correlation analysis indicated that in the orchard with ground cover vegetation, the Shannon’s diversity index was significantly negatively correlated with Nd/Np, Sd/Sp, and S/N but had no significant correlations with Nn/Np and Sn/Sp, whereas in the orchard without ground cover vegetation, the diversity index was significantly positively correlated with Nn/Npand Nd/Np and had no significant correlations with Sd/Sp,Sn/Sp, and S/N.

Key words: Trifolium repens, peach orchard, arthropod, diversity, stability