草业学报2012，Vol.21Issue(2)：180-186,7.
青海湖北岸不同土地利用方式对大型土壤动物群落的影响
Effects of different land-use types on larger-size soil animal communities in the northern region of Qinghai Lake
摘要
Abstract
To investigate the effects of different land-use styles on soil animal communities in the grasslands of the northern region of Qinghai Lake,the larger-size soil animals from 10 different sites were investigated.A total of 657 animals (belonging to 3 classes 9 orders 13 taxonomic groups) were collected,with larval Coleopteran (beetles),larval Diptera and adult Coleopteran as the dominant groups.Compared with former related studies in other regions in the northwest of China,the northern region of Qinghai Lake had rather low numbers (11 individuals per 50 cm×50 cm×20 cm quadrat) and diversity,perhaps due to the arid nature of the area.Compared with three other original grassland types,abandoned land in the Guoluozang County area,soil animals were very scarce,while in the reseeded land there were significantly larger numbers of soil animals,indicating that cultivations had destructive effects on the Achnatherum grassland,while manual activities might be helpful for the recovery process.In the Lanniwan area,there were no differences in animal numbers,biomass and biodiversity between 18-years and 6-years enclosed grassland,but the unfenced grazing channel had significantly lower numbers and animal biomass than the two enclosed grasslands,indicating the negative effects of degraded vegetation and soil conditions on soil animal communities.In the River Beach area,there were no differences of animal biomass,number and biodiversity between the grazing channel and the enclosed meadow steppe,perhaps due to the humid soil environment in the area.关键词
土地利用方式/大型土壤动物/个体数/生物量/多样性Key words
land-use type/larger-size soil animal/number/biomass/diversity分类
农业科技引用本文复制引用
林恭华,赵芳,陈桂琛,陈生云,苏建平,张同作..青海湖北岸不同土地利用方式对大型土壤动物群落的影响[J].草业学报,2012,21(2):180-186,7.基金项目
国家"十一五"科技支撑计划重点项目第4课题(2007BAC30B04),国家重点基础研究发展计划(973计划)项目(2007CB411502),国家自然科学基金(40901040)和冰冻圈科学国家重点实验室自主课题(SKLCS09-06)资助. （2007BAC30B04）
