摘要
为研究五大连池堰塞湖水化学组成特征和离子来源,保护区域水资源,运用水化学特征、Piper三线图、相关分析等方法对水中离子分析,采用舒卡列夫分类法对堰塞湖水进行了分类。结果表明,研究区堰塞湖水呈弱碱性pH均值为8.46,TDS均值为212.6 mg/L,Ca为水中优势阳离子,平均占比37.33%,HCO~-为优势阴离子,平均占比84.44%,这两种离子含量在堰塞湖区域内含量均较为稳定。堰塞湖的水化学类型主要是HCO-Ca·Na,部分为HCO-Ca·Na·Mg型,堰塞湖水中HCO~-与Na~+、Ca、Mg相关性显著,岩石风化控制对水中离子有较大影响,其中盐岩溶解和其他含钠矿物的溶解是Na~+的主要来源,碳酸盐矿物的溶解是Ca和Mg的主要来源,水体中Ca、Mg与围岩中Na~+、K~+离子存在交替吸附作用,对堰塞湖中水化学组成有一定影响。
In order to study the chemical composition characteristics and ion sources of the dammed lake in Wudalianchi Nature Reserve,and to protect regional water resources,the water chemical composition characteristics,Piper trilinear diagram,correlation analysis and other methods are used to analyze the ions in the lake water,and the shukalev classification method was used to classify the dammed lake water.The results show that the water of the dammed lake in the study area is weakly alkaline with an average pH of 8.46,an average TDS of 212.6 mg/L,Ca^(2+) is the dominant cation in the water,accounting for 37.33%on average,and HCO_(3)^(-) is the dominant anion,accounting for 84.44%on average.The content of the two ions is relatively stable in the dammed lake area.The main hydrochemical type of the dammed lake is HCO_(3)^(-)Ca·Na,and some are HCO3-Ca·Na·Mg.The HCO3-has a significant correlation with Na+,Ca^(2+),Mg2+,and the control of rock weathering has a greater impact on ions in the water.The main source of Na+is the dissolution of salt rock and other sodium-containing minerals,the dissolution of carbonate minerals is the main source of Ca^(2+) and Mg2+,and the alternate adsorption of Ca^(2+) and Mg2+in water body with Na+and K+in surrounding rock has a certain influence on the water chemical composition of the dammed lake.
作者
李月兴
孙义敏
王菁华
刘威
王松
郭新明
Li Yuexing;Sun Yimin;Wang Jinghua;Liu Wei;Wang Song;Guo Xinming(Institute of Nature Resources and Ecology,Heilongjiang Academy of Sciences,Harbin 150040,China)
出处
《国土与自然资源研究》
2023年第1期63-67,共5页
Territory & Natural Resources Study
基金
黑龙江省科学院国际合作项目(XZH2021-1)。
关键词
堰塞湖
水化学特征
控制因素
五大连池
dammed lake
hydrochemical characteristics
controlling factors
Wudalianchi
