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)
  • 出版日期:2009-03-20
  • 通讯作者: 易兰

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 Yi 1, 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
  • Online:2009-03-20
  • Contact: Lan Yi

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。

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.

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