The distribution of organic carbon in different size soil aggregates was studied in hilly-gully region on the Loess Plateau,and also the relationship among soil aggregates,organic carbon and vegetation restoration was analyzed. The results showed that:(1) The organic carbon content in the 0~20 cm soil layer was higher than that in the 20~40 cm layer under different vegetation covering.The organic carbon content in different plant communities were Stipa grandis P.smirn community > Stipa bungeana Trin.comm...
修改评论