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当前位置: 首页 > 文章 > 塞罕坝落叶松纯林和混交林凋落物层中小型土壤动物群落特征 四川农业大学学报 2016,34 (2) 147-152
Position: Home > Articles > Meso- and Micro-faunal Communities of Litter Layer in the Pure and Mixed Larch Plantations,Saihanba Area Journal of Sichuan Agricultural University 2016,34 (2) 147-152

塞罕坝落叶松纯林和混交林凋落物层中小型土壤动物群落特征

作  者：
马香丽;杨晋宇;黄选瑞;吴亚楠
单  位：
河北农业大学林学院
关键词：
土壤动物;群落结构;落叶松纯林;落叶松白桦混交林;塞罕坝
摘  要：
【目的】比较研究河北塞罕坝地区落叶松林纯林和混交林凋落物层土壤动物的群落组成特征及其与环境因子间的关系,为保护该地区人工林生态系统生物多样性和可持续经营利用提供资料和理论依据。【方法】以研究区内的落叶松纯林和落叶松白桦混交林为对象,于2013年7月,用Tulligren漏斗法分离林分内凋落物层的中小型土壤动物,分析比较其群落组成和结构特征;同时测定凋落物理化性质,利用统计分析软件进行土壤动物与环境因子相关性研究。【结果】共获得中小型土壤动物11 609只,隶属于11目24个类群,其中落叶松纯林4 529只,隶属于10目18个类群,落叶松白桦混交林7 080只,隶属于10目19个类群;两种林分内的优势群类群均为弹尾目和蜱螨目。方差分析显示,落叶松纯林凋落物层土壤动物个体密度和类群数低于混交林,其中个体密度差异显著(P<0.05);落叶松纯林的香浓维纳多样性指数和匀性指数显著高于混交林;相关分析表明,全氮含量是影响土壤动物多样性的主要因子。【结论】落叶松纯林更新成混交林,能够吸引更多数量的土壤动物,在人工经营过程中应避免营造单一结构的落叶松纯林。
译  名：
Meso- and Micro-faunal Communities of Litter Layer in the Pure and Mixed Larch Plantations,Saihanba Area
作  者：
MA Xiang-li;YANG Jin-yu;HUANG Xuan-rui;WU Ya-nan;College of Forestry,Agriculture University of Hebei;The Tree Germplasm Resources and Forest Protection Key Laboratory of Hebei Province;
关键词：
soil fauna;;community structure;;pure larch plantation;;mixed forest;;Sihanba area
摘  要：
【Objective】The aim of the study was to compare soil meso- and microfaunal communities of litter layer between pure larch plantation and mixed forest in Saihanba area, and to analyze the relationships between soil fauna and environmental factors.【Method】An investigation of soil fauna was carried out in two plantations in July 2013. Tullgren funnel method was used to extract soil fauna.Adiitionally, physical and chemical properties in litters of two plantations were measured. Then,correlations between soil faunal communities and environmental factors were analyzed using statistical analysis software.【Results】A total of 11 609 soil meso- and microfauna belonging to 11 Orders and 24 groups were extracted. There were 4 529 individuals belonging to 18 groups in the pure plantation, and7 080 individuals belonging to 19 groups in the mixed forest, respectively. The dominate groups were Collembola and Acarina in the two forests. The group numbers and density of soil fauna in the mixed forest were higher than those in the pure plantation while the opposite was ture for Shannon-Wiener diversity index and Pielou evenness index. Correlation analysis showed that the main factor affecting soil faunal diversity was total nitrogen content in litter.【Conclusion】Mixed forest was converted from pure forest, having larger number of soil fauna. Therefore, single structure of larch pure forest should be avoided in the future artificial management.

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