毛乌素沙地不同类型生物结皮与下层土壤酶活性及土壤碳氮磷化学计量特征

樊瑾, 李诗瑶, 余海龙, 黄菊莹

Soil enzyme activity and carbon， nitrogen and phosphorus stoichiometric characteristics under different types of biocrusts and subsoil in Mu Us Sandland

Jin Fan, Shiyao Li, Hailong Yu, Juying Huang

图4 生物结皮及下层土壤酶活性与环境因子之间的冗余分析 SOC、N、P、C∶N、C∶P 和N∶P 分别代表有机碳、全氮、全磷含量及其计量比；AN、AP、AK、SWC、BD、Por、pH分别代表碱解氮、速效磷、速效钾、含水量、容重、孔隙度、pH值；Suc 、Ure 、Alp和Cat分别代表蔗糖酶、脲酶、碱性磷酸酶和过氧化氢酶活性

Fig.4 Redundancy analysis of enzyme activities and environmental factors in biocrust and subsoil