土壤电导率的快速测量(EM38)与数据的研究应用  

Study on the Rapid Measurement of Soil Conductivity(EM38) and Data Application

作　　者：李淑敏[1] 李红[1] 周连第[1] 

机构地区：[1]北京市农林科学院农业综合发展研究所,北京100097

出　　处：《安徽农业科学》2009年第29期14001-14004,14015,共5页Journal of Anhui Agricultural Sciences

基　　金：国家科技攻关项目(2004BA6178B-4);财政专项"北京郊区自然与社会经济信息管理平台"

摘　　要：土壤是构成生态系统的一个基本要素之一,是人类赖以生存的物质基础。对土壤环境监测分析至关重要,在土壤分析中含盐量是一个重要的综合指标。而土壤电导率是以数字形式表示土壤溶液的导电能力,反映了土壤的水盐状况。利用大地电导率仪在野外原位测定土壤电磁感应电导率,是一种快速简便测定土壤含盐量的新方法。介绍了EM38大地电导仪的原理及使用,并根据国内外研究进展,对EM38大地电导仪测得土壤电导率数据的研究应用进行了概括,并对其在未来研究中的应用进行了展望。Soil is a basis element of ecosystem, and the material basis of human life. Soil emvironmental monitoring is essential and soil salinity is an impnrtant comprehensive iudieator in soil analysis. Soil conductivity represents the conductive capability of soil solution in digital form, reflecting the state of water and salt in the soil. It＇ s a quick and easy method in measurement of soil salinity that making use of handheld Geonics EM38 electromagnetic soil eonduetivity meter in situ measurement of soil conductivity. The principle and usage of EM38 electromagnetic soil conductivity meter was introduced. Based on the study progress at home and abroad, the researches and applications of apparent soil electrical conductivity measurements were generalized. And its use in the future study was predicted.

关 键 词：电磁感应 EM38 土壤电导率 土壤含盐量 

分 类 号：S151.9[农业科学—土壤学]