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当前位置: 首页 > 文章 > EM38在土壤盐渍化快速检测中的应用研究 扬州大学学报(农业与生命科学版) 2012,33 (3) 69-73
Position: Home > Articles > Application of EM38 in rapid detection of soil salinization Journal of Yangzhou University(Agricultural and Life Science Edition) 2012,33 (3) 69-73

EM38在土壤盐渍化快速检测中的应用研究

作  者：
武珊珊;丁建丽;马春霞
单  位：
乌鲁木齐市国土资源信息中心;新疆大学资源与环境科学学院/绿洲生态教育部重点实验室
关键词：
电磁感应;电导率;土壤盐渍化;渭干河-库车河绿洲;EM38
摘  要：
以渭干河-库车河绿洲地区典型样区为研究对象,电磁感应仪EM38检测与田间采样相结合,针对其存在的土壤盐渍障碍问题,分析土壤电导率的剖面分布特征,建立磁感应表现电导率与土壤电导率之间的回归模型,并对运用电磁感应仪EM38划分土壤盐渍剖面类型进行探讨。结果表明:研究区表层土壤盐分具有较强的表聚性与变异强度,土壤电导率与磁感表观电导率呈极显著的相关关系,EMh对浅层土壤电导率的解译精度较高,而EMv对深层土壤电导率的解译精度要高于EMh。利用电磁感应仪EM38对研究区进行土壤盐渍剖面类型划分,表聚型与底聚型是研究区最主要的盐渍剖面类型。该结果对研究土壤盐渍化的发生机制、预测与评估该地区土壤盐渍化的发生发展具有重要参考意义。
译  名：
Application of EM38 in rapid detection of soil salinization
作  者：
WU Shan-shan1,DING Jian-li1,MA Chun-xia2(1.Coll of Res and Environ Sci/Key Lab of Oasis Eco of MOE,Xinjiang Univ,Urumqi 830046,China; 2.Inf Cen of Urumqi Land and Res,Urumqi 830002,China)
关键词：
electromagnetic induction;conductivity;soil salinization;Weigan River-Oasis of the Kuqa River area;EM38
摘  要：
In this study,we selected the delta oasis of Weigan and Kuqa Rivers as the study area and analyzed the spatial distribution characteristics of soil conductivity by using EM38 measured data and field sampling data.The regression model between the apparent conductivity and soil conductivity was built,and different classification types of saline soil profile by EM38 were taken into consideration.The result showed that a large amount of salty materials were gathered on the surface soil and there was a close correlation between the soil conductivity and apparent conductivity.EMh can detect the surface soil conductivity while EMv can detect the deep soil conductivity in a higher accuracy.The classification result indicated that surface coalescence and bottom coalescence were the main saline soil profile types in this study area.This study has an important significance in further study of mechanism,forecasts and assessment of soil salinization.

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