土壤水盐信息的稳健性分析

ANALYSING ABOUT THE ROBUSTNESS OF THE SOIL WATER-SALT INFORMATION

本文根据区域水环境预测中水盐监测与评价的要求,进行了水盐空间变异性与稳健变异函数的研究。利用内蒙古河套灌区内一个试验区春季水盐采样数据,计算了传统地质统计学变异函数,进行了剔除特异值后计算变异函数的尝试,并直接计算了两种稳健变异函数,通过计算与分析表明,稳健地质统计学方法可以移植到农田水利与水土科学中应用。

On the basis of requirements on water-salt monitoring and evaluation in zone water environment forecasting, this paper studied the Time-space Variability of Water-Salt and the Robust Variogram. Utilizing water-salt spring sampling data from experiment section in Hetao irrigation zone in Inner Mongolia, calculated traditional Geostatistics Variogram, then stabed calculating the Robust Variogram after eliminating the outliers, while directly calculated two kinds of Robust Variogram, via calculating and analyzing, it showed that the Robust Geostatistics method can be introduced into the Water-Soil science.