Estimation of Soil Organic Carbon Reserves in Guangxi and Comparion Study with Some Provinces in China

作者：X Chen · 年份：2014 · 被引用次数：2 · 研究领域：Forest, Soil, and Plant Ecology in China、Plant Ecology and Soil Science、Remote Sensing and Land Use

The main purpose of this research is to estimate the soil organic carbon density and reserves of top soil in Guangxi, China. With the combined analysis of the soil profile data of the second soil survey, the soil map(1∶500 000) and digital map, the author unveiled the carbon density and reserves' distribution features of different soil types and areas in Guangxi, and furthermore, made comparison to the data in other provinces in China. The results show that the soil organic carbon density varies significantly at different type of topsoil. The carbon density in soil is comparatively higher in the north of Guangxi than it in the south. And it is also higher in high latitude areas and yellow soil, while it is lower in low latitude areas and latosol. In addition, the whole soil organic carbon reverses of the topsoil in Guangxi is 6.42×1011kg, as much as the 1.5% of the nationwide reverses in China. And the average value of the soil organic carbon density, 3.33 kg/m2, is lower than the national average level, 4.70 kg/m2.