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基于1:50万的江苏土壤图和江苏土壤的数据,运用地理信息系统技术,对江苏表层土壤有机碳密度及储量做出估算,并且分析了土壤有机碳密度的空间分布差异。结果表明:土壤有机碳密度介于4.2kgm-2到20.32kgm-2之间,土壤有机碳储量为673892.8×106kg;土壤有机碳密度具有高度的空间变异性,兴化、南通和无锡的有机碳密度最高,沿海地区的有机碳密度比较高,最低的为淮阴及其附近地区。
Based on the 1: 500000 soil map of Jiangsu Province and the soil of Jiangsu Province, GIS was applied to estimate the organic carbon density and its reserves in the surface soil of Jiangsu Province. The spatial distribution of soil organic carbon density was also analyzed. The results showed that the soil organic carbon density ranged from 4.2kgm-2 to 20.32kgm-2, and the soil organic carbon storage was 673892.8 × 106kg. The soil organic carbon density had a high degree of spatial variability. The organic carbons of Xinghua, Nantong and Wuxi The highest density, the density of organic carbon in coastal areas is relatively high, the lowest for Huaiyin and its vicinity.