内蒙古皇甫川不同土地利用方式下土壤微生物数量的变化特征  

Variational Characteristics in the Number of Soil Microorganism under Different Land Use Patterns in Huangfu-chuan

作　　者：邵玉琴[1] 赵吉[1] 韦记鹏[1] 隋小娜[1] 高家宝[1] 杨劼[1] 

机构地区：[1]内蒙古大学生命科学学院

出　　处：《内蒙古大学学报（自然科学版）》2008年第4期435-439,共5页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金(30060018);内蒙古自治区高等学校科学研究重大(NJ03116)项目资助

摘　　要：土壤微生物参数可作为土壤质量变化的指标,在内蒙古皇甫川流域,对不同土地利用方式下土壤微生物数量的变化特征进行了研究.结果表明:天然恢复草地和人工油松林地土壤中好气性细菌、芽孢型细菌和霉菌的数量均高于耕地;土壤微生物数量与土壤微生物量碳呈正相关关系;草地和林地的土壤质量优于耕地;退耕还林还草是遏制草地退化和水土流失,提高土壤质量和保护生态环境的重要措施.Soil microorganism parameters can be used as indicators of soil quality changes.Studing on variation of the number of soil microorganism under different land use patterns in Huangfu-chuan,Inner Mongolia was performed.Main conclusions are as follows.The number of soil microorganism,such as aerobacteria,spore-forming bacteria and fungi in natural recovered grassland and forest plantation Pinus tabulaeformis are more than that in cultivated land.The number of soil microorganism has the positive relation with soil microorganism biomass C.The quality and health-condition of soil in grassland and forestland are higher than that in cultivated land.So returning farmland to forests and grasslands is the key measures to prevent the land from grassland degradation and soil erosion,to improve soil quality,and to protect environment.

关 键 词：皇甫川 土地利用方式 土壤微生物数量 

分 类 号：Q938.13[生物学—微生物学] S154[农业科学—土壤学]