【摘要】 在自然和人为作用的双重驱动下,地球表面氮素的生物地球化学过程及其环境效应成为当前全球变化中区域研究的重要内容。探讨了氮素循环各个过程及其数量特征,对氮素循环模型进行了介绍,并对当前生态系统中氮素循环的研究热点进行了简要的论述。更多还原

【Abstract】 Driven by both nature and human function, the biogeochemical course of nitrogen on earth surface and its environmental effect has become a significant content of regional research in current global change .In this article we discuss the every course in nitrogen cycle and its quantity feature, then introduce the models of nitrogen cycle, we also carry out a brief exposition for the hot-spot of the research of nitrogen cycle in current ecological system.更多还原