A Study on Measuring Method of Soil Solution Concentration in field

HE Yu-jiang; SHI Lei

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A Study on Measuring Method of Soil Solution Concentration in field

- A Study on Measuring Method of Soil Solution Concentration in field
- Bulletin of Soiland Water Conservation Vol. 32, Issue 6, Pages: 213-215(2013)
- 作者机构：
  
  1. 中国地质科学院水文地质环境地质研究所,河北,石家庄,050803
  2. 中国石油集团工程设计有限责任公司北京分公司,北京,100085
- 作者简介：
- 基金信息：
- DOI：
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- Published：2013
- 稿件说明：
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HE Yu-jiang, SHI Lei. A Study on Measuring Method of Soil Solution Concentration in field[J]. Bulletin of Soiland Water Conservation, 2013, 32(6): 213-215.
DOI：

HE Yu-jiang, SHI Lei. A Study on Measuring Method of Soil Solution Concentration in field[J]. Bulletin of Soiland Water Conservation, 2013, 32(6): 213-215. DOI：

摘要

为寻求一种野外快速有效测定土壤溶液浓度的方法

于新疆自治区南疆地区开展了田间试验。利用负压计监测土壤水分

在土壤达到饱和时

在相同深度分别借助土钻和土壤水提取器同时取土样和土壤水样

利用电导率仪测定土壤电导率(EC1:5)和饱和土壤电导率(ECe)

使用火焰光度计和滴定法测定土壤水溶液浓度(C)

并利用SPSS17.0软件对实测数据进行线性回归分析及检验。结果表明

南疆砂壤土条件下

EC1:5值在0~10000μS/cm范围内

EC1:5与土壤总盐含量呈显著线性关系土壤ECe可用土壤EC1:5进行推算

二者关系系数可以根据饱和重量含水量确定在土壤达到饱和

EC1:5在0~3000μS/cm时

土壤溶液浓度与EC1:5呈显著线性关系。因此

通过野外测得土壤样品的EC1:5

并确定其适用条件后

根据相关关系可直接计算得到ECe和C。

Abstract

Field experiment was conducted in South of Xinjiang Uygur Autonomous Region to find efficient method to measure soil solution concentration.Soil water content was measured by tensiometer.Soil water and soil were sampled by soil drill and soil water extractor with the same depth

respectively.Soil EC1:5 and ECewere measured by conductivity meter.Soil solution concentration was measured by flame photometer and titrmetric method.Linear regression analysis on measured data was carried out by means of SPSS 17.0.The results showed that there was a significant linear relationship between EC1:5and soil total salitv when EC1:5 was 0-10000 μS/cm;ECecould be calculated by EC::through the coefficent of relationship which was decided by soil saturation content1:5was 0-3 000 μS/cm

there was a significant linear relationship between soil solution concentration and EC1:5.Therefore

on the basis of measuring EC1:5of the soil samples

and identifying the conditions under which it can be applied

the ECe and C can be directly calculated through correlation.

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