沙质草地3种植物群落土壤有机碳氮密度特征

武雅琳, 赵学勇, 张蕊

Characteristics of soil organic carbon and nitrogen density in three plant communities of sandy grasslands

Yalin Wu, Xueyong Zhao, Rui Zhang

图7 3种植物群落土壤有机碳和氮密度与环境因子的相关性 注：*：在0.05水平差异显著；**：在0.01水平差异显著；***：在0.001水平差异显著。BD、SA、ST、CL、TP、TK、C∶N、C∶P、C∶K、N∶P、N∶K、P∶K、SCD、SND分别代表土壤容重、土壤砂粒含量、土壤粉粒含量、土壤黏粒含量、全磷含量、全钾含量、碳氮比、碳磷比、碳钾比、氮磷比、氮钾比、磷钾比、土壤有机碳密度和土壤氮密度

Fig.7 Correlation between soil organic carbon and nitrogen density and environmental factors in three plant communities