Discussion on the Necessity of Soil Organic Carbon Mineralization in Degraded Forest Land in Aeolian Sand Beach Area

Abstract

Soil organic carbon is the largest carbon pool in terrestrial ecosystem, and its dynamic change is an important factor affecting the carbon budget balance of terrestrial ecosystem and the global carbon cycle. The forest land is extremely sensitive to the change of soil carbon pool. The wind-sand beach area in the north of Jingbian is located at the southern tip of the Mu Us Desert, and the ecological environment is fragile. The shelterbelt has been seriously degraded and fragmented, forming a large area of fragmentated forest, which has gradually changed from the original carbon sink into a carbon source. In addition, this region is dry, less rain and more wind-blown sand, which determines that temperature and moisture are the key factors affecting the mineralization and stability of soil organic carbon in this region. This paper analyzed and summarized the influencing factors of soil organic carbon mineralization, such as water, temperature and organic carbon components, and discussed the necessity of studying soil organic carbon mineralization in degraded forest land.