生物多样性 ›› 2009, Vol. 17 ›› Issue (2): 160-167.DOI: 10.3724/SP.J.1003.2009.08299

• 论文 • 上一篇    下一篇

常绿阔叶林不同砍伐处理下土壤动物的群落特征

陈小鸟1,2, 由文辉1,2, 王向阳1,2, 易兰1,2,*()   

  1. 1 华东师范大学环境科学系, 上海 200062
    2 浙江天童森林生态系统国家野外科学观测研究站, 浙江宁波 315114
  • 收稿日期:2008-11-19 接受日期:2009-03-05 出版日期:2009-03-20 发布日期:2009-03-20
  • 通讯作者: 易兰
  • 作者简介:* E-mail: lyi@des.ecnu.edu.cn
  • 基金资助:
    浙江天童森林生态系统国家野外科学观测研究站开放课题(51X1412E)

Community traits of soil animal under different ground cover treatments in evergreen broad-leaved forest

Xiaoniao Chen1,2, Wenhui You1,2, Xiangyang Wang1,2, Lan Yi1,2,*()   

  1. 1 Department of Environment Science, East China Normal University, Shanghai 200062
    2 Tiantong National Station of Forest Ecosystem, Chinese National Ecosystem Observation and Research Network, Ningbo, Zhejiang 315114
  • Received:2008-11-19 Accepted:2009-03-05 Online:2009-03-20 Published:2009-03-20
  • Contact: Lan Yi

摘要:

为了解不同砍伐处理对常绿阔叶林中土壤动物群落结构的影响, 于2007年7月至2008年4月在浙江天童地区常绿阔叶林中对5个砍伐4年后的恢复样地进行四季采样。样地处理分别是: (I) 去除大树保留萌枝、(II) 去除地表植物保留枯枝落叶层、(III) 去除地表植物和10 cm表土、(IV) 清除下木层保留大树及(V)对照。结果显示: I号样地土壤动物个体数量最多, 除I号样地与III号样地差异显著外(P<0.05), 其他样地间不存在显著差异; 各样地表层土壤动物数量均与5-10 cm、10-15 cm层有显著差异(P<0.05); II号样地类群丰富度最高; I号样地DG指数最高, III号样地最低; 弹尾目、啮目、伪蝎目和半翅目与群落总体特征(DG指数)的相关性都达到了极显著水平(P<0.001)。结果表明砍伐在一定程度上改变了土壤动物的类群组成, 砍伐强度越大, 土壤动物受影响越大。

关键词: 干扰, 土壤动物, 常绿阔叶林, 天童

Abstract

To understand the effects of ground cover removal on soil animal communities, we investigated the soil fauna community in an evergreen broad-leaved forest logged four years ago at Tiantong, Zhejiang Province between July, 2007 and April, 2008. We used the five following treatments in five sites: (I) big trees with height>8 m and DBH>5 cm were removed but sprouts retained; (II) ground surface vegetation was removed but litter retained; (III) all vegetation and 0-10 cm topsoil were removed; (IV) undergrowth was removed but big trees retained; and (V) a control plot without any disturbance. Soil animal density only differed between site I and site III (P<0.05). The highest density was found at site I. Species richness of soil animals in the 0-5 cm layer was significantly higher than in the 5-10 cm and 10-15 cm layer (P<0.05). Site II was higher than the other four sites in terms of group richness. Based on the density-group index, diversity was highest at site I and lowest at site III. The density of Collembola, Psocoptera, Pseudoscorpiones and Hemiptera were correlated with changes in the density-group index (P<0.001). Our results indicate ground cover characteristics impact the composition of soil communities; the more intense the disturbance, the greater the influence on soil animals.

Key words: disturbance, soil animal, evergreen broad-leaved forest, Tiantong