甘肃省中药材主产区陇西县土壤有机碳空间分布
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The spatial distribution of soil organic carbon in the main producing areas of traditional Chinese medicine in Longxi, Gansu, China
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图4. 各乡镇各土层各等级土壤有机碳密度面积占比分布 |
Fig.4. The proportion of soil organic carbon density area in each soil layer of each township |
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