作　　者： ; ; ; ; ; ; ;

机构地区： 贵州大学林学院

出　　处： 《河南农业科学》 2009年第3期47-51,共5页

摘　　要： 对黔南喀斯特石灰岩地区不同土地利用方式(农田、草本、灌丛)下的大型土壤动物群落进行研究。结果表明,共捕获大型土壤动物1 556只,分别隶属3门8纲16类;不同土地利用方式下大型土壤动物群落个体数和类群数存在差异;大型土壤动物个体数在垂直分布上表聚现象明显,其中杂食性和捕食性动物个体数的表聚性非常明显;类群数分布稍微不均匀,杂食性和捕食性动物之间相互竞争食物和空间资源,导致土壤动物类群数不完全递减;大型土壤动物在食物网的功能不同,对土壤的贡献也不同。如,一方面蚯蚓提高了土壤通气透水性,一方面则对有机物质进行粉碎,蚂蚁则参与对枯枝落叶的分解和改善土壤的物理性质;蚂蚁可以用来评价土壤生态质量。 Soil macrofauna communities under different land-use patterns （farmland,herb, shrub）in the karst regions of south Guizhou were investigated. Result show that the captured 1556 soil macrofauna belong to 3 phylums,9 Classes, 16 kinds. There are differences in individual and group number of soil macrofauna communities under different land use patterns. Soil macrofauna individuals in the vertical distribution has an obvious surface accumulation, it is extremely obvious that surface accumulation of number of individual of omnivory and predatory and a little uneven distribution of several groups, both of predatory and omnivory animal competes food and space resources,cause group number of soil animal decreases progressively incompletely , Soil macrofauna has different functions in the soil food web, and it has different contributions to soil. For example, on the one hand earthworm enhances soil ventilation water permeability, on the other hand it crushes organic matter, and ant participates in the decomposition of fallen leaves and improves physical property of soil; Ants can be used to evaluate the ecological quality of the soil.

关 键 词： 石灰岩 大型土壤动物 功能类群

领　　域： [农业科学] [农业科学]