黄河北岸兰州段丘陵区土壤生态化学计量与空间变异
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Spatial variation of ecological stoichiometry characteristics of hilly soil in Lanzhou section of Yellow River north shore
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图3. 研究区0—40 cm深度土壤碳氮磷含量及其生态化学计量比的空间分布 |
Fig.3. Spatial distribution of SOC, STN, STP and its ecological stoichiometric ratio at 0-40 cm depth |
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