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5 As等指标误差值及对应半变异函数参数特征

Table 5 The semivariance function and the compositional error for As and other trace elements

指标 量纲 分布类型 变换 理论半变异函数 C0 E As 10-6 正态 无 1.367000×Nugget+3.450000×Spherical(16320) 1.36700 7.47 Cd 10-6 对数正态 对数 0.015500×Nugget+0.118000×Exponential(9390) 0.01550 0.176 Cu 10-6 对数正态 对数 0.022300×Nugget+0.058800×Spherical(57740) 0.02230 0.21 Pb 10-6 对数正态 对数 0.000020×Nugget+0.029840×Spherical(1730) 0.00002 0.006 Zn 10-6 对数正态 对数 0.018380×Nugget+0.036860×Exponential(11010) 0.01838 0.19 Se 10-6 对数正态 对数 0.041400×Nugget+0.175800×Exponential(34848) 0.04140 0.29