基于GIS和统计学的土壤监测指标时空变化分析
汪媛媛, 华明, 金洋, 崔晓丹, 许伟伟, 李文博, 刘玮晶, 汪子意, 文宇博

An analysis of the temporal and spatial changes in soil monitoring indices based on GIS and statistics
WANG Yuan-Yuan, HUA Ming, JIN Yang, CUI Xiao-Dan, XU Wei-Wei, LI Wen-Bo, LIU Wei-Jing, WANG Zi-Yi, WEN Yu-Bo
表4 pH等指标误差值及对应半变异函数参数特征
Table 4 The semivariance function and the compositional error for pH and other soil parameters
指标 量纲 分布类型 变换 理论半变异函数 C0 E
pH 正态 0.084349×Nugget+0.56600×Spherical(9480) 0.11500 0.48
OM 10-3 正态 16.80000×Nugget+33.6100×Exponential(22950) 16.8000 5.80
N 10-3 正态 0.052000×Nugget+0.105000×Exponential(29940) 0.05200 0.32
P 10-3 正态 0.002270×Nugget+0.020340×Exponential(6480) 0.00227 0.067
B 10-6 正态 7.500000×Nugget+73.07000×Exponential(3450) 7.50000 3.87
Mo 10-6 对数正态 对数 0.035300×Nugget+0.089300×Gaussian(32614) 0.03530 0.27