建三江地区土壤氮磷生态化学计量空间异质性特征及其影响因素分析

房娜娜, 杨泽, 刘国栋, 戴慧敏, 刘凯

Spatial heterogeneity and influencing factors of the ecological stoichiometry of soil nitrogen and phosphorus in the Jiansanjiang area

FANG Na-Na, YANG Ze, LIU Guo-Dong, DAI Hui-Min, LIU Kai

图3 土壤全氮(a)、全磷(b)和氮磷比(c)的各向异性半方差函数

Fig.3 Semi-variogram models for soil total nitrogen (a), total phosphorus (b) and N/P ration (c) in anisotropy