[Assessing spatial pattern of carbon density of understory vegetation in Xiaoxing'anling area based on SGAM model]
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We estimated carbon densities of the sapling, shrub, and herb layers in the Yichun region of the Xiao-xing'anling area in Heilongjiang Province, based on field measurements from 1194 natural and plantation forest plots in 2021. Combined with terrain, climate,... ...