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土壤团聚体的稳定机制及人类活动的影响
引用本文:史奕,陈欣,沈善敏.土壤团聚体的稳定机制及人类活动的影响[J].应用生态学报,2002,13(11):1491-1494.
作者姓名:史奕  陈欣  沈善敏
作者单位:中国科学院沈阳应用生态研究所陆地生态过程重点实验室,沈阳110016
基金项目:国家重点基础研究发展规划资助项目 (G19990 1180 4) .
摘    要:土壤团聚体是土壤结构的基本单位,它的形成不仅是自然的过程,而且受到人类活动的严重影响,即土地利用变化,耕作干扰,有机肥施用以及种植制度和轮作方式等人类活动的影响。土壤结构的改善不仅决定于输入有机碳的总量,而且与有机质的组成和特征有关,因有机质的组成和特征不同,使微团聚体和大团聚体的稳定作用具有不同的机制。

关 键 词:土壤团聚体  稳定机制  人类活动  影响
文章编号:1001-9332(2002)11-1491-04
修稿时间:2001年5月8日

Stable mechanisms of soil aggregate and effects of human activities
SHI Yi,CHEN Xin,SHEN Shanmin.Stable mechanisms of soil aggregate and effects of human activities[J].Chinese Journal of Applied Ecology,2002,13(11):1491-1494.
Authors:SHI Yi  CHEN Xin  SHEN Shanmin
Institution:Key Laboratory of Terrestial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016. shiyi@iae.ac.cn
Abstract:Soil aggregate is the basic unit of soil structure. Its formation is a natural process but influenced severely by human activities,including land utilization ,tillage disturbance, manure application, and cropping system. The improvement of soil structure is decided not only by total amount of organic C inputted into soil, but also by the composition and characteristic of organic matter. Owing to the different composition and characteristic of organic matter, there are different mechanisms for the stability of micro and macro aggregates.
Keywords:Soil aggregate  Stable mechanism  Human activity    
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