Soil Microbial Biomass Acts as Source and Sink of Energy Material C Flou in Mountainous Soils of Guizhou

Abstract

Abstract: The soil microbial biomass,the living fraction of organic matter,contains energy material organic carbon compounds,which is derived from plant residue generated soil organic matter.This study investigated the relationships between microbial biomass C and organic C with environmental parameters.The results indicate that soil microbial biomass is highly sensitive to the changes of environmental conditions in soils,and converts easily to available organic C compounds,and acts as source and sink of energy material C flow.Therefore,it plays an important role in soil organic matter decomposition.The turnover of soil microbial biomass is an important pathway of soil organic matter decomposition.

Key words: mine wastewater, irrigation, physiological character, winter wheat, heavy metal.

CLC Number:

S154.36

Piao Hechun, Hong Yetang, Yuan Zhiyun. Soil Microbial Biomass Acts as Source and Sink of Energy Material C Flou in Mountainous Soils of Guizhou[J]. cje, 2001, (1): 33-37.

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Soil Microbial Biomass Acts as Source and Sink of Energy Material C Flou in Mountainous Soils of Guizhou

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