贵州省都柳江流域水化学特征研究  

Study on the hydrochemical characteristics of Duliu River basin in Guizhou Province

作　　者：左禹政 安艳玲[3] 吴起鑫[1,2,4] 屈坤杰 樊光辉[1,2] 叶祖鑫 秦玲[1,2] 钱娟婷 涂成龙[4] ZUO Yu-zheng;AN Yan-ling;WU Qi-xin;QU Kun-jie;FAN Guang-hui;YE Zu-xin;QIN Ling;QIAN Juan-ting;Tu Cheng-long(Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou University, Guiyang 550025,China;College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China;Guizhou Institute of Technology, Guiyang 550003, China;State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China)

机构地区：[1]贵州大学国土资源部喀斯特环境与地质灾害防治重点实验室,贵州贵阳550025 [2]贵州大学资源与环境工程学院,贵州贵阳550025 [3]贵州理工学院,贵州贵阳550003 [4]中国科学院地球化学研究所环境地球化学国家重点实验室,贵州贵阳550002

出　　处：《中国环境科学》2017年第7期2684-2690,共7页China Environmental Science

基　　金：国家自然科学基金(41603123;U1612442);贵州省基金资助项目(黔科合LH字[2016]7457号);水利部公益性项目(201401050);贵州省重点学科建设项目(黔学位合字ZDXK[2016]11号)

摘　　要：于2015年丰水期和枯水期采集了都柳江河水样品,分析了河水的主要水质参数和主量元素.结果显示,都柳江河水呈弱碱性,优势阳离子为Ca^(2+)、Mg^(2+),优势阴离子为HCO_3^-、SO_4^(2-),水化学类型为HCO_3^-—Ca^(2+)—Mg^(2+)型.Gibbs图、三角图、相关性分析表明都柳江水化学上游主要受碳酸盐岩风化控制,下游硅酸盐影响增加.受地层岩性和地貌变化的影响,河流TDS沿主河道呈递减的趋势.离子比值分析表明,流域上游主要受工矿活动的影响,而中下游地区人为活动因素较为复杂,受农业、城镇排污等多种活动影响.62water samples were collected in wet and dry seasons in2015at Duliu River at Guizhou Province in southwest China.The water parameters and major ions were determined.The results showed that river water of Duliu River was alkaline,and the dominant cations and anions were Ca2+、Mg2+and HCO3-、SO42-,respectively.The hydrochemical type was HCO3--Ca2+-Mg2+.Gibbs diagram,triangle diagrams and correlation analysis showed that the water chemistry was mainly controlled by the chemical weathering of carbonate at the upper reaches,while the silicates have an increasing influence at the lower reaches.The TDS decreased gradually in the mainstream of Duliu Basin due to lithology and geological landforms changes.Analyses of SO42-/Ca2+and NO3-/Ca2+show that Upper Duliu river was mainly affected by mining industries,while the downstream area was controlled by multifarious human activities such as agriculture and sewage.

关 键 词：都柳江流域 水化学 岩石风化 影响因素 

分 类 号：X13[环境科学与工程—环境科学] X143