黄河北岸兰州段丘陵区土壤生态化学计量与空间变异
南富森, 李宗省, 张小平, 崔乔, 李玉辰, 杨安乐, 熊雪婷

Spatial variation of ecological stoichiometry characteristics of hilly soil in Lanzhou section of Yellow River north shore
Fusen Nan, Zongxing Li, Xiaoping Zhang, Qiao Cui, Yuchen Li, Anle Yang, Xueting Xiong
表2 研究区040 cm深度土壤碳氮磷含量和生态化学计量比的半变异函数模型和参数
Table 2 Semi-variogram model and parameters of SOCSTNSTP and ecological stoichiometry at 0-40 cm depth
指标模型块金值C0基台值C0+C块基比C0/(C0+C)变程/km残差(RSS决定系数R2
有机碳SOC指数1.1114.590.0819.2422.70.28
全氮STN高斯0.020.160.104.49<0.010.78
全磷STP线性0.280.29>0.99127.34<0.010.68
C∶N高斯4.9621.350.2320.137630.28
C∶P线性21 669.8221 669.82>0.9910.27<0.010.31
N∶P高斯0.0161.76<0.016.5840580.28