摘要
为查明城乡周边-皖北夹沟地区水库水的水化学特征及其灌溉性,系统采集了研究区内11座水库21个水样品,采用描述性统计、Piper三线图法、Gibbs图法、离子比例系数法和主成分分析等方法,对研究区地表水进行了水化学分析,同时利用灌溉指标对研究区地表水进行了灌溉性评价。结果表明:研究区地表水水化学类型以Ca-Mg-HCO_(3)和Ca-HCO_(3)-SO_(4)为主;水化学组分变化受岩石风化作用较明显,主要受碳酸盐矿物、硅酸盐矿物、硫酸盐矿物、岩盐风化溶滤等天然地质作用影响。灌溉指标显示,研究区水库水的盐害和碱害程度较小,适宜做灌溉水。
To ascertain the water chemistry characteristics and irrigating properties of reservoir water in the Jiagou area around urban and rural areas,21 water samples from 11 reservoirs in the study area were collected systematical⁃ly.The hydrochemical characteristics of reservoir samples were analyzed by the methods of descriptive statistics,Pip⁃er diagram,Gibbs diagram,ion ratios,and principal component analysis.At the same time,the irrigation index was used to evaluate the irrigation performance of the surface water in the study area.The results show that the hydro⁃chemical types of surface water in the study area were mainly Ca-Mg-HCO_(3) and Ca-HCO_(3)-SO_(4),which are affected by rock weathering,especially by natural factors such as carbonate minerals,silicate minerals,sulfate minerals,and rock salt weathering leaching.Irrigation indicators show that the degree of salt damage and alkali damage of the reser⁃voir water in the study area is relatively small,and it is suitable for irrigation water.
作者
袁政莲
马杰
颜晓龙
张玉洁
刘家乐
白秀秀
YUAN Zhenglian(School of Resources and Civil Engineering,Suzhou University,Suzhou 234000,China)
出处
《安徽农学通报》
2021年第21期138-141,共4页
Anhui Agricultural Science Bulletin
基金
安徽省教育厅高校自然科学研究项目(KJ2019A0677)
省级大学生创新创业训练计划入选项目(S202010379111)
校级大学生科研立项入选项目(KYLXYBXM21-121、KYLXYBXM21-123、KYLXZCXM21-159、KYLXZCXM21-171)。
关键词
夹沟地区
水化学特征
水库
灌溉性评价
Jia-gou area
Hydrochemical characteristics
Reservoir
Irrigation water quality evaluation
