The soil organic matter, soil labile organic matter and soil carbon management index(CMI) at different land use conditions in Ziwuling area were studied. The objective was to reveal changes of soil organic matter fraction and their corresponding carbon management indexes as affected by land use patterns. The contents of soil organic matter and three labile organic matter contents decreased with the increase of soil depth, and presented the order of forest land, unploughed abandon land > ploughed abandon ...
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