排灌机械工程学报Issue(10)：894-900,7.DOI:10.3969/j.issn.1674-8530.13.0231
基于EM38-MK2的滨海土壤电导率精确解译模型
Accurate models of interpreting soil electrical conductivity based on EM38-MK2
摘要
Abstract
Takes the modern Yellow River Delta as the object of study,soil electrical conductivity (1∶5 )was measured in laboratory by collecting soil samples stratified and apparent soil electrical con-ductivity in horizontal and vertical mode measured at the sampling points by EM38-MK2.In order to investigate models to interpret soil conductivity based on electromagnetic induction meter (EM38 -MK2 ),the relationship between soil electrical conductivity at different depths and soil apparent electri-cal conductivity under different modes respectively was studied using regression and multiple stepwise regressions to assess soil salinity distribution pattern rapidly at different depth in regional scale.The re-sults show that soil apparent electrical conductivity of each mode has a significant correlation with soil electrical conductivity at different soil layers.Interpretation accuracy of soil electrical conductivity is higher in combined soil electrical apparent conductivity of each mode than that single-mode;prediction accuracy of electrical conductivity for subsurface soil and deep soil are increased by combining soil ap-parent electrical conductivity with surface soil electrical conductivity.The results may provide ideas for rapid measurement and evaluation of soil salinization and saline soil improvement and utilization to save costs and improve efficiency.关键词
土壤电导率/电磁感应仪/黄河三角洲/土壤表观电导率/模型Key words
soil electrical conductivity/electromagnetic induction meter/Yellow River Delta/soil apparent electrical conductivity/model分类
农业科技引用本文复制引用
吕真真,杨劲松,刘广明..基于EM38-MK2的滨海土壤电导率精确解译模型[J].排灌机械工程学报,2014,(10):894-900,7.基金项目
国家自然科学基金资助项目（51109204）；公益性行业（海洋）科研专项经费项目（201105020）；公益性行业（农业）科研专项经费项目 （）
