森林生态系统土壤氮矿化影响因素研究进展

森林生态系统土壤氮矿化是生态系统中最重要的功能之一，综述了近10余年来森林生态系统土壤氮矿化影响因素的研究，在前人的基础上将其影响因素归成3类；（1）环境因子，（2）凋落物质量，（3）土壤动物和微生物，其中环境因子中的土壤温、湿度是影响土壤氮矿化的最重要因子，氮素可利用性、氮转化与群落演替、植物多样性间相互关系的研究正受到愈来愈多的重视，研究CO2倍增及其引起的全球变暖对土壤氮素转化的潜在影响也已成为当前全球变化问题研究的热点之一。

A review of affecting factors of soil nitrogen mineralization in forest ecosystems

Soil nitrogen mineralization in forest ecosystems is one of the most important indicators for normal ecosystem functions.Based on the wesults of many studies conducted since 1980's,we concluded that soil temperature and soil moisture are the most important factors among all which affect nitrogen mineralizations.These factors are in three groups i.e.,(1)the environmental factors,(2)the quality of litter,and (3)soil animals and microbes.The researches on the relationships between the nitrogen availability,nitrogen transformation and community succession,plant diversity are attacting more and more attention.The potential impact of doubling atmospheric CO\-2 concentration and global warming it on soil nitrogen transformations now becomes one of the hot research points relevant to global change.