An Analysis on Electrical Conduction Spatial Characteristics in Saline-alkali Soil
This paper mainly analyzes the spatial distribution of electrical conduction (EC) in the five study areas using the measured data by EM38.The analysis on electrical conduction spatial variation is conducive to correctly understand the electrical conduction measurement results in saline-alkali soil.Based on the analysis of sampled electrical conduction data,the following conclusions are obtained.First,the spatial variation of electrical conduction is related to its mean.From a macro point of view,the greater the mean of electrical conduction is,the stronger spatial heterogeneity will be.This relationship may not be met when two study areas have the similar mean of electrical conduction.Second,the spatial autocorrelation length of electrical conduction distribution is the description of the spatial correlation relation changes with distance,while the sill of electrical conduction indicates the amplitude of electrical conduction spatial variation.Finally,the discrete Fourier transform results show that electrical conduction has different spatial period in the five study areas.
electrical conuction saline-alkali soil spatial autocorrelation spatial distribution
Xingming Zheng Kai Zhao Lingjia Gu
Centre of Remote Sensing and Geoscience,Northeast Institute of Geography and Agroecology,CAS,Changch College of Electronic Science & Engineering,Jilin University,Changchun,China
国际会议
太原
英文
70-74
2012-01-13（万方平台首次上网日期，不代表论文的发表时间）