Lag Selection for Spatial Distribution of Soil Salinity in A Typical Arid Area
Abstract：Semi-variance parameters about spatial distribution of soil salinity in a typical arid area was researched with different lags,the accuracy was compared and the best lag was chose,the spatial distribution of soil salinity was researched.Mobile EM survey was operated with enough information of ECa,which could be calibrated into salinity information.A semi-variance model with different lags was fitted,and the best lag length was selected by comparing error parameters.The research result showed,15 m was the best lag length with a favorable best-fit accuracy,and the prediction of soil salinization had a good accuracy.
Keywords：arid areasoil salinityspatial distributionlag length
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：3( 93-95 )