土壤变暖对土壤微生物活性的影响

讨论了土壤变暖对土壤微生物活性的影响及其后果。许多研究表明，土壤呼吸与土壤温度呈正相关关系。描述这种关系所用的模式有线性回归分析、Q10关系式、幂关系式、Arrhenius关系式及其它关系式，但这些模式通常都不能准确地估计呼吸率。尽管如此，几乎所有的研究都显示土壤温度强烈地影响土壤微生物活性及呼吸。在一定温度范围内，土壤变暖提高土壤微生物活性及呼吸率。解释这种现象的一种机制是微生物群体组成随温度升高而改变。文章最后指出，为了得出更加明确的结论及更加准确地预测全球变暖对土壤的影响，必须进行更深入地研究。

Effects of Soil Warming on Soil Microbial Activity

The effects of soil warming on soil microbial activity and the consequences are reviewed and discussed in this paper. Many studies show that there is a positive correlation between soil respiration (R) and temperature (T). Models of the relationship including linear regression analysis, Q-(10) relationship, power relationship, Arrhenius relationship and others have been used, but usually, they cannot provide an unbiased estimate of respiration rate. Nevertheless, almost all studies on the relationship indicate that soil temperature strongly influence microbial activity and respiration in soil. Soil warming in a range of temperature will increase soil microbial activity and respiration rate. One mechanism to explain this observation is a shift in microbial community composition. Further studies are required in order to make answers more clear and predicate the effects of global warming on soil more accurately.