氮沉降对森林土壤碳动态过程的影响

Effect of nitrogen deposition on soil carbon dynamic process in forest

本文综述了国内外关于森林土壤碳动态过程对氮沉降响应机制的研究进展,概述了大气氮沉降对土壤碳释放及其影响因子的作用机制,从土壤生物学特性、凋落物动态、土壤碳释放等方面揭示大气氮沉降对土壤碳平衡过程影响机制和机理,探讨了森林土壤碳动态过程对氮沉降响应的不确定性因素,并指出未来该领域研究重点。

The research progress of responding mechanism of soil carbon dynamic process in forest on nitrogen deposition was reviewed in domestic and overseas. The mechanism of action of atmosphere nitrogen deposition on soil carbon emission and influence factors were summarized as well. The influencing mechanism of atmosphere nitrogen deposition on soil carbon equilibrium process from soil biological characteristics, litter dynamic condition and soil carbon emission and so on. The uncertain factors of soil carbon dynamic process in forest on nitrogen deposition were discussed and the future research em-phasis in this field was pointed out.