土壤可溶性盐含量与电导率的关系实验研究  

Experimental Research on Relationship between Content Soluble Salt in Soil and Electric Conductivity

作　　者：辛明亮[1,2] 何新林 吕廷波[1,2] 陈思 曹玉斌[1] 

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832000 [2]现代节水灌溉兵团重点试验室,新疆石河子83200

出　　处：《节水灌溉》2014年第5期59-61,共3页Water Saving Irrigation

基　　金：NSFC-新疆联合基金(U1203282);NSFC-新疆联合基金(U1203182);石河子大学高层人才引进科研启动基金(RCZX201129)

摘　　要：为了能解决土壤可溶性盐测定工作中经常会遇到的问题,采集了石河子大学现代节水灌溉兵团重点试验室土壤样品110个,系统研究了土壤可溶性盐含量与土壤浸出液电导率之间的关系,从5种函数模型中筛选出土壤浸出液电导率与其残渣烘干法可溶性盐含量之间的最优回归拟合方程y=0.071 2 x0.576 8;探究土壤浸出液电导率随其静置时间的变化规律,得出电导测定和残渣烘干法测定的准确静置时间。In order to solve the usual problems in the soil soluble salt content test work, 110 soil samples in Shihezi University Key Laboratory of Modern Water-saving Irrigation Corps were collected to systematically study the relationship between the content of soil soluble salt and soil leaching solution conductivity. The optimize regression equation, y= 0. 071 2 x^0.5768, for the relation between the soil leaching solution electrical conductivity and the salt content soluble in residue drying method was selected from 5 kinds of function model. The change rule of soil extract conductivity along with the standing time was explored and the accurate standing time for the conductivity method and the residue drying method was gained.

关 键 词：土壤浸出液 可溶性盐含量 电导法 残渣烘干法 

分 类 号：S153[农业科学—土壤学]