摘要
为了解宁夏银北灌区暗管排水改善土壤水盐性状的具体效果,在平罗县五堆子暗管排水工程单元区布置监测试验网,通过监测地下水位埋深、土壤全盐量以及室内检测分析地下水样的矿化度,了解修建暗管排水工程后田间土壤水盐变化特征。结果表明:暗管排水工程控制地下水位作用明显,可以有效地将地下水埋深控制在1.06~1.77 m;土壤的全盐量随着土层深度的增加而减小,总体呈现出下降的趋势;一级暗管自排区排水排盐比二级暗管强排区效果更明显;地下水矿化度变化趋势与土壤全盐量的变化趋势基本相同,利用DPS软件建立了地下水矿化度和土壤全盐量线性回归方程。
In order to understand the effect of underground pipe drainage in Yinbei irrigation district of Ningxia to improve soil water and salt properties, a monitoring test network was set up in B1 unit area of Wuduizi dark pipe drainage project in Pingluo county, and the buried depth of underground water level was observed in the field. The total salt content in soil and sampling water samples was measured and analyzed in laboratory to understand the variation characteristics of soil water and salt in the field after the underground pipe drainage project. The results show that the underground water level can be effectively controlled in the range of 1.06 to 1.77 m by the subsurface pipe drainage project. The total salt content of soil decreases with the increase of soil depth, and in the whole it also decreases. The effect of sewerage and salt discharge in the self-drainage area of the first dark pipe is more obvious than that in the strong drainage area of the secondary pipe.The degree of groundwater mineralization and soil salt content have basically the same trend. The linear regression equation of groundwater mineralization degree and soil total salt content is established by using DPS software, which provides a reference basis for the related research in areas with similar environmental conditions.
作者
李楷奕
王红雨
马利军
姚自凯
张刚柱
单宁
LI Kaiyi;WANG Hongyu;MA Lijun;YAO Zikai;ZHANG Gangzhu;DAN Ning(School of Civil Engineering and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China;Engineering and Technology of Research Center of Water-Saving Irrigation and Water Resource Regulation in Ningxia, Yinchuan 750021, China)
出处
《宁夏工程技术》
CAS
2019年第2期133-137,共5页
Ningxia Engineering Technology
基金
国家自然科学基金资助项目(41462010)
宁夏大学研究生创新资助项目(GIP201635)
关键词
暗管排水
地下水位埋深
全盐量
矿化度
DPS软件
underground drainage
groundwater level depth
total salt content
salinity
DPS software
