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3 3种植物群落不同土层土壤养分差异 注：ASP代表黄蒿+禾本科群落；ASGB代表沙米+狗尾草群落；CMF代表小叶锦鸡儿+杂类草群落。大写字母表示同一土层不同植物群落间差异显著，小写字母表示同一植物群落不同土层间差异显著（P<0.05）

Fig.3 Nutrient differences of soil in different soil layers of three plant communities