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元谋干热河谷不同人工林中鞘翅目甲虫多样性比较

李巧1,3;陈又清2;刘方炎2,3;郭萧1;陈祯1;付文1   

  1. 1西南林学院, 昆明 650224;
    2中国林业科学研究院资源昆虫研究所, 昆明 650224;
    3国家林业局云南元谋荒漠生态系统定位研究站, 云南元谋 651300
  • 收稿日期:2006-02-26 修回日期:2006-07-03 出版日期:2007-01-10 发布日期:2007-01-10

Comparison of beetle (Insecta: Coleoptera) diversity in forest plantations in Yuanmou dry-hot valley

LI Qiao1,3;CHEN You-qing2;LIU Fang-yan2,3; GUO Xiao1;CHEN Zhen1;FU Wen1   

  1. 1Southwest Forestry College, Kunming 650224, China;
    2Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, China;
    3Desert Ecosystem Research Station, State Forestry Administration, Yuanmou 651300, Yunnan, China
  • Received:2006-02-26 Revised:2006-07-03 Online:2007-01-10 Published:2007-01-10

摘要: 在元谋干热河谷采用网扫法调查了云南松林、桉树林、新银合欢林、桉树+新银合欢林、印楝林及多树种混交的人工林鞘翅目昆虫多样性。结果表明,鞘翅目甲虫标本925号,计71种,分属18个科,其中叶甲科种类最丰富,象甲科数量最丰富。人工林鞘翅目昆虫群落物种丰富度在7~23,Shannon-Wiener多样性指数在1.249~2.562,昆虫多样性总体较低。各样地鞘翅目群落之间为不相似水平。云南松林鞘翅目昆虫群落物种丰富度、Shannon-Wiener指数Simpson指数及Pielou指数分别为20、2.562、0.104和0.855,其多样性最高,多树种混交林较高, 印楝林较低, 而桉树林、新银合欢林、桉树+新银合欢林多样性极低。多树种混交的恢复对昆虫多样性提高有显著促进作用。

关键词: 栓皮栎, 年龄结构, 分布格局, 生命表, 存活曲线

Abstract: By the method of sweep netting, an investigation was made on the beetle (Insecta: Coleoptera) diversity in Pinus yunnanensis, Eucalyptus, Leucaena leucocephala, Eucalyptus+L. leucocephala, Azadirachta indica, and multiple tree species mixed plantations in Yuanmou dry-hot valley. A total of 925 beetles were captured, belonging to 71 species and 18 families. Chry-somelidae had most species, while Curculionidae had most individuals. The species richness of the beetle communities was 7-23, and the ShannonWiener index was 1.249-2.562, sugges-ting a lower insect diversity as a whole. Among the test plantations, P. yunnanensis plantation had the highest diversity of beetle communities, followed by the mixed plantation, A. indica plantation, and Eucalyptus, L. leucocephala, and Eucalyptus+L. leucocephala plantations. The restoration of multiple tree species mixed plantation was of significance in enhancing insect diver-sity.

Key words: Quercus variabilis, Age structures, Distribution pattern, Life tables, Survival curve