文献类型： 会议论文

第一作者： Hongyang Chen

作者： Hongyang Chen ¹ ; Decao Niu ¹ ; Shigao Jiang ¹ ; Li Liu ¹ ; Caixia Wu ¹ ; Hua Fu ¹ ;

作者机构： 1.State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University. P.O. Box 61, Lanzhou 730000, People's Republic of China

关键词： Soil microbial biomass;qCO_2;soil microorganism;dry ecosystem.

会议名称： International Grassland Congress

主办单位：

页码： 1433-1434

摘要： Soil microbial biomass (MBC), as the most active of soil organic constituents, controls many important ecological processes in the ecosystem including nutrient cycling and litter decomposition (haet al. 2010), and is considered to be the most sensitive biological indicator of soil quality (Sinha et al. 2009). Moreover, soil microbial metabolic quotient (qCO_2) reflects the quantity and quality of soil organic matter, soil nutrient availability, microbial substrate utilization efficiency and ecosystemstability (Mao et al. 2010). Shrub is the dominant vegetation of desert ecosystems, contributing to soil nutrient conservation and carbon sequestration. Considerable research related to shrubs in desert ecosystems has been reported, however changes of soil microbial properties throughout the process of shrub development remains poorly documented. The main objective of this study was to explore how soil microbial homass and qCO_2 change with shrub development.

分类号： S812-532