Study on the characteristics of surface soil carbon pool in Eastern Qinghai Province
By integrating the data of 33092 km2 multi-objective regional geochemical survey and land quality geochemical survey in Eastern Qinghai Province,the total storage and average carbon density of soil organic carbon,inorganic carbon and total carbon in Eastern Qinghai Province were estimated,and the spatial distribution characteristics of topsoil carbon and the change rules of carbon density per unit of different soil types,land use and ecosystems were analyzed.The results showed that the total carbon storage of topsoil(0～20 cm)in the study area was272.81 Mt,and the average carbon density was 8243.85 t/km2;Different soil types,land use and ecosystems all affect the carbon density and distribution of topsoil;Compared with the soil organic carbon storage of the second census data,the Eastern Qinghai Province belongs to the carbon source area as a whole,and the topsoil in Eastern Qinghai Province has released about 53.21 Mt of organic carbon in the past 20 years.
Soil carbon poolsoil carbon storagesurface soilsoil typeEastern Qinghai Province
NETL
NSTL
万方数据
