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森林土壤氮素的转化与循环 被引量:108

Soil nitrogen transformation and cycling in forest ecosystem
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摘要 森林土壤氮素转化与循环在森林生态系统功能中占有极其重要的意义。本文综述了森林土壤氮素转化与循环的研究历程和现状 ;介绍了凋落物的归还、施肥、大气沉降、自生固氮、氨化、硝化、反硝化、植物吸收、NH3 的挥发、NO3 -淋溶等土壤氮素输入、转化和输出的途径和过程 ;最后从研究目标、研究方法、研究对象和研究内容 4个方面归纳了森林土壤氮素转化与循环的发展趋势。 Nitrogen transformation and cycling in forest soils are of signification importance to the function of forest ecosystems.In this paper,the research history and status were summarized.The processes of soil nitrogen input,interior transformation and output,including litter return,fertilization,atmosphere desposition,ammonification nitrogen fixation,ammonification,nitrification,denitrification,plant uptake,NH 3 volatilization and NO 3- leaching,were introduced.Finally,the tendency of study on soil nitrogen transformtion and cycling was concluded according to research methods,objects,objectives and contents.
出处 《生态学杂志》 CAS CSCD 北大核心 2004年第5期126-133,共8页 Chinese Journal of Ecology
基金 中国科学院知识创新工程重要方向项目(KZCX3-SW-418) 国家重点基础研究发展规划项目(2002CB111506) 中国科学院沈阳应用生态研究所领域前沿资助项目(SLYQY0409)
关键词 土壤氮素 转化与循环 森林生态系统 soil nitrogen,transformation and cycling,forest ecosystem.
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参考文献99

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