莱州湾东岸地下水化学及盐化特征
文献类型：期刊论文
| 作者 | 高猛
|
| 刊名 | 海洋通报
 |
| 出版日期 | 2014 |
| 卷号 | 33期号:5页码:584-591 |
| 关键词 | 地下水污染 地下水盐化 海水入侵 莱州湾 |
| ISSN号 | 1001-6392 |
| 其他题名 | Hydrochemical characteristics and salinization characteristics of groundwater in the east coast of the Laizhou Bay |
| 产权排序 | 中国科学院烟台海岸带研究所; 中国科学院寒区旱区环境与工程研究所; 长安大学 |
| 中文摘要 | 以莱州湾东岸为研究区,利用统计分析、相关性分析、Piper图、饱和指数以及离子比例等方法系统研究了该区的浅层地下水化学特征及盐化机理。结果表明,水化学参数Cl~-、HCO_3~-和Ca~(2+)离子浓度较高,而Mg~(2+)、K~+离子浓度很低,研究区硝酸盐污染严重,平均离子浓度高达172.88 mg/L,为劣五类水质;Cl~-、SO_4~(2-)、Na~+和K~+的离子浓度变异系数较大,是随环境变化的敏感因子,是决定地下水盐化的主要变量;该区地下水中Ca~(2+)、Mg~(2+)和Cl~-占主要优势,地下水化学类型复杂,按阳离子主要划分为Ca、Ca·Mg (Ca·Mg·Na)、Ca·Na (Ca·Na·Mg)及Na·Ca型水;按阴离子主要有Cl、Cl·HCO_3(HCO_3·Cl)、HCO·Cl·SO_4(Cl·HCO_3·SO_4)、Cl·SO_4、Cl·SO_4·HCO_3以及HCO_3·SO_4·Cl (SO_4·HCO_3·Cl)型水;TDS质量浓度呈现显著的空间结构性特征,表现为从中部向两侧浓度逐渐升高,由海向陆TDS质量浓度逐渐降低,南部TDS质量浓度要显著大于北部;蒸发沉积、溶滤、阳离子交换作用以及人类活动的影响是浅层地下水盐化的主要控制因素;岩盐、白云石、方解石以及石膏等矿物是地下水常规离子的主要物源。 |
| 英文摘要 | The research on hydrochemical characteristics and salinization mechanism of groundwater plays an important role in understanding the environmental evaluation of groundwater and the reasonably planning,utilization and management of groundwater resources. The study is intended to research the hydrochemical characteristics and salinization mechanism of the groundwater in the northeast coast of the Laizhou Bay by descriptive statistics, correlation analysis, Piper diagram, saturation index and ion ratios and so on. The results show that major cations and anions such as Cl~-、 HCO_3~- and Ca~(2+)have higher concentrations while Mg~(2+)and K~+ have lower concentrations in the study area. The pollution of nitrate in the study area is severe. The average concentration of NO_3~- is 172.88 mg/L, higher than the fifth level of the water quality. In view of variation coefficients, the values of Cl~-、 SO_4~(2-)、 Na~+ and K~+ are much higher than those of the others, showing that the formers play a more significant role in the salinization of the groundwater and are vulnerable to the environment. Groundwater facies are very complex in this area, and can be classified into Ca, Ca·Mg (Ca·Mg·Na) , Ca·Na (Ca·Na·Mg) and Na Ca types in terms of cations while Cl, Cl·HCO_3 (HCO_3·Cl), HCO_3·Cl·SO_4 (Cl·HCO_3·SO_4), Cl·SO_4, Cl·SO_4·HCO_3 and HCO_3·SO_4·Cl (SO_4 HCO_3·Cl)types in terms of anions. The mass concentration of TDS presents the significant characteristics of spatial structures, showing that TDS concentration is increasing from the center to border areas and decreasing from coastal areas to the inland. Ion ratios and saturation index plots indicate that main hydrochemical processes are inferred to control the groundwater chemical composition:evaporation concentrating, mineral dissolution, cation exchange and human activities. The main origins of conventional ions are halite, dolomite, calcite and gypsum. |
| 收录类别 | CSCD |
| 语种 | 中文 |
| CSCD记录号 | CSCD:5270686 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/8461]  |
| 专题 | 烟台海岸带研究所_海岸带信息集成与综合管理实验室 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 推荐引用方式 GB/T 7714 | 高猛. 莱州湾东岸地下水化学及盐化特征[J]. 海洋通报,2014,33(5):584-591. |
| APA | 高猛.(2014).莱州湾东岸地下水化学及盐化特征.海洋通报,33(5),584-591. |
| MLA | 高猛."莱州湾东岸地下水化学及盐化特征".海洋通报 33.5(2014):584-591. |
入库方式： OAI收割
来源：烟台海岸带研究所
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