围栏对新疆山区草地植被下土壤动物多样性的影响  

Impacts of fencing on soil animals diversity beneath mountainous lawn vegetation in Xinjiang

作　　者：李慧[1] 蒋平安[1] 程路明[1] 贾宏涛[1] 董自红[1] 

机构地区：[1]新疆农业大学资源环境学院,新疆乌鲁木齐830052

出　　处：《干旱区地理》2006年第4期538-542,共5页Arid Land Geography

基　　金：新疆自治区土壤学重点学科资助项目;全球环境基金(GEF)资助项目

摘　　要：通过对新疆典型山区草地———高山草甸、亚高山草甸、高山草原和亚高山草原野外实地监测,比较了草原围栏内外土壤动物的类群组成、个体数量及生态分布,讨论了围栏这一人为手段对山区草地植被下土壤动物的影响:土壤动物多样性为围栏内高于围栏外,但是受构建时间的限制,围栏内外差异不显著。土壤动物类群数和个体数的分布主要取决于草原植被、土壤有机质、土壤含水率等因子。Through on- the-spot field monitoring the typical mountainous grassland including alpine meadow, subalpine meadow, downland and sub - downland in Xinjiang, the group composition, individual numbers and ecological distributions of soil animals are compared inside and outside the enclosure, the impacts of the artificial means, fencing, on soil animals beneath mountainous lawn vegetations are discussed. The results show that the diversity of the soil animals inside paling is higher than that outside paling, but there is no significant difference between the diversity of the soil animals outside and inside the paling because of the limit of fencing time. The group number and individual number distribution of soil animals are decided mainly by lawn vegetation, rail organic matter, soil water content and so on.

关 键 词：土壤动物 草原围栏 生态分布 多样性 

分 类 号：S812[农业科学—草业科学]