Vegetation is one of important factor to affect the content of soil organic carbon and aggregate,which increase the input of soil organic carbon and improve soil structure.The influence of vegetation restoration on distribution of aggregate and organic carbon and nitrogen in Loess Plateau was studied.The result showed that there was the same tendency in changes of soil organic carbon,nitrogen and mean weight diameter of aggregate (MWD),but there was quadratic correlation between the organic carbon and MWD.V...
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