中文摘要：

林地采伐后形成采伐迹地，其植被处于逐渐恢复阶段，改变了原有地上植物群落组成及土壤的生态环境. 于2011年4月和7月研究了吉林左家自然保护区采伐13-14年迹地和未被采伐的相应生境的土壤动物群落结构，以期为森林生态系统恢复提供土壤动物学依据. 采样生境分别是：蒙古栎＋黑桦林采伐迹地，人工落叶松林采伐迹地，蒙古栎＋黑桦林和人工落叶松林. 结果显示：蒙古栎＋黑桦林采伐迹地大型土壤动物个体密度为251.5只/m2，类群数22类，多样性指数为2.34，显著低于未经采伐蒙古栎＋黑桦林的个体密度（309.5只/m2）、类群数（30类）、多样性指数（3.13）；中小型土壤动物个体密度为0.97 × 104只/m2，类群数20类，多样性指数1.98，均低于未经采伐蒙古栎＋黑桦林的个体密度（2.12×104只/m2）、类群数（22类）、多样性指数（2.05）. 人工落叶松林采伐迹地则相反. 土壤动物群落与土壤有机质、全氮（P 〈 0.05）和pH（P 〈 0.05）有明显相关性，而与土壤全磷（P 〉 0.05）和含水率（P 〉 0.05）相关性不明显. 总之，采伐在一定程度上改变了土壤动物的群落组结构，但由于采伐前林型不同使得采伐后植被恢复过程中土壤动物群落的变化也存在差异.

英文摘要：

The vegetation recovers gradually after forest cutting, which changes the original plant community composition and the soil ecological environment. In order to understand the effects of cutting on soil fauna communities, we investigated soil fauna community on the clear-cutting and unclear-cutting of Quercus mongolica ＋ Betula davurica forestland and Larix olgensis plantation, respectively, in April and July, 2011. Soil macrofauna was picked out by hands. Soil meso-microfauna were extracted by Tullgren funnel. All extracted soil samples were identified to the suborder or family level under a stereoscopic microscope.Soil pH was measured with PHS- 3B acidity meter.Soil organic C was determined by K2Cr2O7 oxidation method and total N by Kjeldahl method. Total P was analyzed by using the colorimetric method with molybdenum in sulphuric acid. It showed that the unclear-cutting Quercus mongolica ＋ Betula davurica forestland had higher density （309.5 ind./m2）, group number （30） and diversity index （3.13） of soil macrofauna as well as higher density （2.12 × 104 ind./m2）, group number （22） and diversity （2.05） of soil meso-microfauna than the clear-cutting of Quercus mongolica ＋ Betula davurica forestland. But the density, group number and diversity of soil fauna in the clear-cutting Larix olgensis plantation were lower than those in the unclear-cutting counterpart. Soil organic matter, total N （P 〈 0.05） and pH （P 〈 0.05） had significantly effect on soil fauna; while total P （P 〉 0.05） and soil moisture content （P 〉 0.05） had little effect on soil fauna. The study suggested that cutting has obvious effects on soil fauna community, with the extent of influence depending on the forestland type before cutting.