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应用生态学报 ›› 2002, Vol. ›› Issue (11): 1491-1494.

• 研究论文 • 上一篇    下一篇

土壤团聚体的稳定机制及人类活动的影响

史奕, 陈欣, 沈善敏   

  1. 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
  • 收稿日期:2001-05-08 修回日期:2002-01-11 出版日期:2002-11-15
  • 通讯作者: 史奕,女,1961年生,在职博士,副研究员,主要从事土壤特征有机质及对全球变化的响应研究,发表论文20余篇.E-mail:shiyi@iae.ac.cn
  • 基金资助:
    国家重点基础研究发展规划资助项目(G1999011804).

SHI Yi, CHEN Xin, SHEN Shanmin   

  1. Key Laboratory of Terrestial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016
  • Received:2001-05-08 Revised:2002-01-11 Online:2002-11-15

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.

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 Cinputted 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.

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