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基于甘肃省武威地区多目标区域地球化学调查6 000 km~2的调查系统取得了土壤有机碳等指标,结合土地利用图,土壤类型图等,对武威地区有机碳储量进行了统计及分析,估算出地表0.2 m~、1 m~厚和1.8 m~厚土体的平均单位土壤TOC量分别为1.51×1103 t/km~2、5.53.×103 t/km~2、8.85×103 t/km~2,远远低于全国平均水平。其有机碳空间分布规律为有机碳储量较高的地区分布于双城镇—永昌镇—武威市—武南镇—黄羊镇一带,表现为测区中部相对富集,东部缺失。
Based on the multi-target regional geochemical survey in Wuwei area of Gansu Province, a survey system of 6 000 km ~ 2 was established to obtain soil organic carbon and other indicators. Based on the land use maps and soil types maps, the organic carbon stocks in Wuwei area were calculated and analyzed. The TOC amounts of soils from the surface 0.2 m ~ 1 m ~ 1 m ~ 1.8 m thick were 1.51 × 1013 t / km ~ 2.5.53 × 103 t / km ~ 2 and 8.85 × 103 t / km, respectively ~ 2, far below the national average. The spatial distribution of organic carbon was distributed in Shuangcheng-Yongchang-Wuwei-Wu Nan-Huang-Huangzhen areas with high organic carbon storage area, which was characterized by relative enrichment in the central part of the survey area and absence of the eastern part.