Spatial Distribution of Soil Organic Carbon Density and Storage in Shandong Province, China

The question of agricultural soil organic carbon density and storage is very important for global change and carbon cycle. Cited from second general detailed soil survey, the soil organic carbon density and storage of Shandong province were estimated taking soil local type as unit. Soil organic carbon density changes from 38.50 to 0.77kg.m(-2), and averaged of 6.00 kg.m(-2) which is lower than that of China. Soil organic carbon storage is 5.97x10(8)t, and is 0.65% of the total of China. The soil local types of high organic carbon density are mainly distribute in deposition place of geology cycle such as piedmont plain, intermountain plain, and lowland by the sea or lake. The soil local types of low organic carbon density are mainly distributed on upper places of hill with extensive soil erosion.