Study On Soil Carbon Pool In Ebinur Lake Wetland Natural Reserve

As the largest carbon pool of terrestrial ecosystem, soil carbon study is one of the priorities and hot spots in the terrestrial ecosystem carbon cycle and global change research. Soil carbon was storied in soil mainly in form of soil organic matter and carbonate, its status and change is closely related to the atmosphere carbon cycle. The Studies of arid area soil carbon pool is an important and indispensable component of terrestrial ecosystem carbon cycle, but the academy have not pay enough attention to it, and its storage and change process is still not clear. Therefore, it is necessary to conduct more soil carbon cycle in arid zone, so as to enrich and promote the terrestrial ecosystem soil carbon cycle research, and provide basis for scientific management of arid areas soil carbon. This thesis took Ebinur Lake wetland natural reserve as study area, the content, density, profile distribution and difference of soil organic and inorganic carbon was discussed under different soil and vegetation type respectively. Spatial distribution characteristics of soil organic and inorganic carbon density were analyzed, and soil carbon storage was estimated. At last, the relation between soil organic and inorganic carbon, and how soil physical and chemical properties affect soil carbon were studied. The main conclusions are as follow:1. Under different soil type, soil organic carbon content and density present decrease trend along with the increase of profile depth, but most of them rise at 50cm. The average soil organic carbon content and density of different soil type ranged between 0.93~3.19g/Kg and 0.13~0.41Kg/m~2 respectively. The overall ranking among these types is desert sand soil