土壤氮素矿化研究进展

Development and Advance of Soil Nitrogen Mineralization

总结了现阶段土壤中有机氮矿化的研究成果,详细阐述了影响有机氮矿化的因素:温度、水分均对氮矿化量、矿化速率有影响,且二者存在明显交互作用;耕作制度通过改变土壤的物理性质,也导致了土壤中氮矿化过程发生变化;施用不同肥料对氮矿化过程的影响也不同;土壤预处理等均会对氮矿化过程产生影响。该文还归纳了目前在研究土壤氮矿化过程中的主要方法及氮素矿化模型,并剖析了各种研究方法的适用条件及各种模型的应用范围。

This paper summarizes the research result of particularly expounds those factors, which influence soil soil organic nitrogen mineralization at present, organic nitrogen mineralization. These factors include temperature, moisture; cultivate system, fertilizer, soil management beforehand and so on. In these factors, both temperature and moisture affect the amount of nitrogen mineralization and the velocity of mineralization, moreover it is being apparent interaction between temperature and moisture. Cultivate system may change the property of soil, therefore it leads to the variety of soil nitrogen mineralization course. Different fertilizers mixed to use will exert different influence on nitrogen mineralization. Soil management beforehand will also have an effect on soil nitrogen mineralization. This paper also generalizes the main research methods in soil nitrogen minerlization and models which have been founded already up to now, and then the paper anatomies the apply condition of all kinds of research methods and apply range of all kinds of models.