摘要
从土壤碳含量的输入和输出两方面综述了N沉降胁迫对土壤碳库的影响方式和过程,分析了目前N沉降对凋落物分解、细根生物量、土壤呼吸的影响的研究进展及其作用机制,但由于N沉降对土壤碳库的影响是一个复杂的综合作用过程,N沉降对森林土壤碳库的总效应尚需要更深入的研究。
Soil carbon pool in terrestrial ecosystems, the largest carbon pool, plays an important role in the global carbon cycle. Summary was made on impact pattern and process of nitrogen deposition on soil carbon pool from the import and export of soil carbon content, as well as on the latest progress of researches on effect of nitrogen deposition to litter decomposition, fine root biomass and soil respiration. Propositions were offered to enhance further research of the response of soil carbon pool to N deposition and the reciprocity of various factors due to the complex relationship.
出处
《浙江林业科技》
北大核心
2009年第5期68-72,共5页
Journal of Zhejiang Forestry Science and Technology
基金
国家自然科学基金项目(40671132)
科技部973项目(2005CB422207
2005CB422208)
科技部数据共享平台建设项目(2005DKA32306和2006DKA32308)
科技部国际合作项目(20073819)
科技部重大科技基础项目(2007FY110300)
浙江省重大科技专项项目(2008C13G2100010
2006C12060)
浙江林学院科学发展基金
浙江省森林培育重中之重学科开放基金(200608)的部分资助
关键词
土壤碳库
N沉降
凋落物
细根
土壤呼吸
soil carbon pool
nitrogen deposition
litter
fine root
soil respiration
