| In this study, the characteristics of the two kinds of soil active carbon were systematically studied by sampling analysis and laboratory testing under different typical vegetation communities in the condition of limestone mountain in Xuzhou. The results showed that the study to the characteristics of the soil active carbon under different typical vegetation communites demonstrate that the amount of the soil microbial biomass carbon (SMBC) and water soluble organic carbon (WSOC) both increased along with the transforming from grassland to forestland. Among the transformation, the variation tendency of SMBC under different vegetation communites was MBF (Mixed Broadleaf-conifer Forest)>DBF(Deciduous Broadleaf Forest)>CF(Coniferous Forest)>BGL(Bush-Grass Land), the variation tendency of WSOC under different vegetation communites was DBF>MBF>CF>BGL. In the limestone mountain of Xuzhou, mixed broadleaf-conifer and deciduous broadleaf forest can be the substitute tree for Platycladus orientalis planted in large local areas, which can efficiently improve condition of soil nutrient fertility. |
