Organic Carbon Change and Distribution of Soil Aggregates Under Different Land Uses
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    Abstract:

    Organic carbon change and distribution of soil aggregates were analyzed under different land uses such as arable,garden plots,woodland,and abandonment land by field investigation and indoor analysis.Results indicated that by the percentage,the size groups of soil aggregates were in the order of>5,2~5,0.5~1,1~2,<0.25,and 0.25~0.5 mm and by the organic carbon content,the size groups were in the order of>5,2~5,1~2,and 0.5~1 mm in the>0.5 mm size groups.In the <0.5 mm size groups,the organic carbon change was relatively complicated.The organic carbon content in arable land,woodland,and abandonment land was the highest in <0.25 mm fraction of soil aggregates.The organic carbon content in the garden plot was the highest in 0.25~0.5 mm fraction of soil aggregates.The difference was the largest in>5 mm fractions of soil aggregates among the four land uses and the difference decreased with the increasing aggregate size.Under different land uses,the proportion of the organic carbon and total organic carbon for the <0.25 and 0.25~0.5 mm soil aggregates was lower than that for 2~5,>5,and 0.5~1 mm soil aggregates.

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何淑勤,郑子成.不同土地利用方式下土壤团聚体的分布及其有机碳含量的变化[J].水土保持通报英文版,2010,(1):7-10

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History
  • Received:July 02,2009
  • Revised:August 24,2009
  • Adopted:
  • Online: November 26,2014
  • Published: