【摘要】 碳氮循环是生物地球化学的重要过程。陆地生态系统碳循环在全球碳收支中占有重要的地位,人类活动导致生态系统中氮含量增加,影响土壤和植物体中碳的积累与重新分配,对陆地生态系统不同的碳过程产生不同的影响。本文综述了近年来氮输入的研究现状,并对未来的研究方向做了展望,提出今后重点研究的方向。更多还原

【Abstract】 The carbon cycling in the terrestrial ecosystem is very important in the global carbon budgets.The increasing nitrogen content in ecosystem is resulted from human activity,and this will influence the carbon sequestration and reallocation in soil and plant,hence affects the main carbon processes in the terrestrial ecosystem.This paper reviews the effect of nitrogen input on terrestrial ecosystem carbon pool in recent years,and makes a prospect for research,and at the same time,brings forward some future topics in this field.更多还原