柠条（ Caragana korshinskii ）固沙林恢复过程中表层土壤有机碳累积特征及其驱动机制

许正强, 王兴东, 万仲武, 王瑞霞, 杨学龙

Accumulation characteristics and driving mechanisms of topsoil organic carbon during the restoration of Caragana korshinskii sand-fixing shrublands

Zhengqiang Xu, Xingdong Wang, Zhongwu Wan, Ruixia Wang, Xuelong Yang

图5 土壤有机碳储量积累的机制分析 注：LA：凋落物蓄积量；TN：土壤全氮；C∶N：土壤碳氮比；C∶P：土壤碳磷比；N∶P：土壤氮磷比；RY：恢复年限；SSR：土壤化学计量比； GOF：拟合优度。*，***分别表示在P <0.05和P <0.001显著性水平下具有统计学意义。

Fig.5 Mechanistic analysis of soil organic carbon storage accumulation