森林土壤氮素的转化与循环

摘要/Abstract

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。

关键词: 城市森林, 结构与效益, CITYgreen模型

Abstract: 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,NH₃ volatilization and NO₃^- leaching,were introduced.Finally,the tendency of study on soil nitrogen transformtion and cycling was concluded according to research methods,objects,objectives and contents.

Key words: Urban Forest, Structure and benefits, CITYgreen Model

中图分类号:

S158

陈伏生, 曾德慧, 何兴元. 森林土壤氮素的转化与循环[J]. 生态学杂志, 2004, (5): 126-133.

CHEN Fusheng, ZENG Dehui, HE Xingyuan. Soil nitrogen transformation and cycling in forest ecosystem[J]. cje, 2004, (5): 126-133.

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