摘 要(英文)：As a result of increasing anthropogenic nitrogen deposition, N availability in many forest ecosystems, which are normally
N-limited, has been enhanced. Yet, little is known about the effects of nitrogen deposition on microbial activity and community
composition. Increased N availability may impact the soil microorganism that are generally regarded as an adaptation to nutrient
limited conditions. Based on available scientific knowledge the effects of nitrogen deposition on soil microorganism, including the
change of soil microbial community structure and function are reviewed in this paper. The potential impacts were related to the following
two aspects. Elevated nitrogen deposition would affect the soil microbial community structure, such as decreased soil microbial
biomass, w(C)/w(N), fungi abundance, fungi/bacteria, and lead to the change of the function of soil microorganism, for example
the reduction of soil respiration, extracellular enzymatic activity, and altered the pattern of microbial substrate use. Moreover, the
future research work and new method about the nitrogen deposition and soil microorganism is also discussed in this paper.
氮沉降增加对土壤微生物的影响