长期围栏封育对巴音布鲁克山地草原土壤微生物的影响  

Effect of Long-term Fencing Closure on Soil Microbe in Mountain Pasture of Bayanbulak

作　　者：曹叶飞[1] 方光新 蒋平安[1] 贾宏涛[1] 李赟[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 [2]新疆畜牧厅项目办,新疆乌鲁木齐830000

出　　处：《新疆农业科学》2008年第2期342-346,共5页Xinjiang Agricultural Sciences

基　　金：全球环境基金(GEF)项目“新疆天然草地恢复过程中的生物多样性变化和碳循环规律研究”;土壤学自治区重点学科项目

摘　　要：选择中科院巴音布鲁克生态站长期围栏封育的草原作为研究对象，对新疆巴音布鲁克三种草地类型—亚高山草原、亚高山草原化草甸、亚高山草甸化草原进行野外实地监测，研究了长期围栏封育对草地土壤微生物的影响，研究结果表明亚高山草原、亚高山草甸化草原、亚高山草原化草甸围栏内外的细菌群落组成占土壤微生物总量的50％以上，放线菌次之，真菌最少；三种草地类型的0-10cm土层的微生物数量占0-60cm土层微生物总数的40％-90％，具明显表聚性，在0-60cm土层中微生物数量随剖面深度加深而递减；在围栏对土壤微生物总数的影响上，亚高山草原、亚高山草甸化草原、围栏内微生物数量明显高于围栏外，且围栏内外差异显著。This article chooses long-term fencing prairie which was managed by the Bayanbulak ecology station of Academia Sinica as investigate object, to carry out field monitor on the spot in Xinjiang Bayanbulak three lawn types Sub - alpine prairie, the Sub - alpine prairie meadow, the Sub - alpine meadow prairie, respectively. And the influence of soil microbe on prairie fencing was studied, the results indicated that bacteria community constitute inside or outside of the Sub - alpine prairie, the Sub - alpine prairie meadow, the Sub - alpine meadow prairie,bacteria connnunity constitute occupied above 50% of the soil microbe total quantity, next was actinomycete, the fungi was the least;The microbial quantity in 0-10 cm soil layer of three kinds of praire types occupied total microbe of 40%-90% in 0-60 cm soil layer.The quantity of microbe in 0-60 cm soil layer was decreased with depty of section plane deepening. In fencing to soil microbe＇ s influence, the Sub - alpine prairie, the Sub - alpine meadow prairie, microbe quantity of inside is obviously higher than that of outside, also the discrepancy was remarkable.

关 键 词：巴音布鲁克 围栏 土壤微生物 

分 类 号：S812.5[农业科学—草业科学]