Original Articles

Review on Study of the Soil Macro- organic Matter

  • 1. Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China|
    2. Harrow Research Centre, Agriculture &|Agri- Food Canada, Ontario, N0R 1G0, Canada|
    3. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

Received date: 2005-12-01

  Revised date: 2006-04-01

  Online published: 2006-05-25


Soil macro- organic matter (MOM) with a rapid turnover rate plays a dominant role in soil nutrient dynamics, especially soil nitrogen. MOM is a significant component of light organic matter in soils. It can be a sensitive index to reflect the short- term effects of the management on soil organic matter. This paper reviews the concepts of various soil organic matter (SOM) fractions by different physical fractionations, details the fractionation methods for soil macro- organic matter (MOM), discusses the factors which have influences on the content of the soil MOM, factors which include management, land use, soil texture and climate. In the end, this paper points out the existing problems about the study of MOM: (1) The dynamic mechanism of soil organic matter is still puzzling. (2) The procedure for the separation of the soil MOMfraction needs to be studied further. (3)Many researchers'opinions diverge from each other on the contribution of MOM to soil nitrogen mineralization. In future, the study should focus on the mechanism of MOM responding to affecting factors, separating methods and the contribution of MOMto soil nitrogen mineralization.

Cite this article

LIANG Aizhen,ZHANG Xiaoping,YANG Xueming,FANG Huajun . Review on Study of the Soil Macro- organic Matter[J]. PROGRESS IN GEOGRAPHY, 2006 , 25(3) : 128 . DOI: 10.11820/dlkxjz.2006.03.015


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