沋河流域下游水化学特征分析
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摘要
在渭南沋河流域下游选取5个点进行采样,运用统计法、Gibbs图、阴阳离子三角图示法,对渭南沋河流域下游的主要阴阳离子、pH值、电导率EC和总可溶性固体TDS进行了综合分析。结果表明:所有样品的离子组成均为Ca~(2+)-HCO_3~-,呈弱碱性。河流流经区域的TDS和EC的均值分别为214.63mg/L和429.50μg/cm,pH值为7.79,各采样点离子平均质量浓度总和RKK>HX>LJ>CKK>HY。岩石风化作用是水化学组成的控制因素,整个沋河流域下游的水化学形成过程主要受碳酸盐和蒸发岩控制。
To study the water chemistry characteristics in downstream of the Youhe River,we selected 5 sampling points( RKK,HY,HX,L1 and CKK) to sample river water from output to Huayuan village in April,2016. Based on statistical method,the results of Gibbs distribution pattern and triangular diagrams of anions and cations,this paper makes further analysis about anions and cations,p H,conductivity EC and total soluble solids TDS. The results show that the hydrochemical type of the Youhe River basin is Ca~(2+)-HCO_3~-. The river water is slightly alkaline. The average of TDS and EC were 214.63 mg / L and 429.5 μg / cm,respectively. The mean ionic value is RKK>HX>L1>CK>HY. Gibbs distribution pattern shows that the major controlling factor of runoff is rock weathering. With the analysis of triangular diagrams of anions and cations,we conclude that the source of the main ions are carbonate-evaporite weathering.
To study the water chemistry characteristics in downstream of the Youhe River,we selected 5 sampling points( RKK,HY,HX,L1 and CKK) to sample river water from output to Huayuan village in April,2016. Based on statistical method,the results of Gibbs distribution pattern and triangular diagrams of anions and cations,this paper makes further analysis about anions and cations,p H,conductivity EC and total soluble solids TDS. The results show that the hydrochemical type of the Youhe River basin is Ca~(2+)-HCO_3~-. The river water is slightly alkaline. The average of TDS and EC were 214.63 mg / L and 429.5 μg / cm,respectively. The mean ionic value is RKK>HX>L1>CK>HY. Gibbs distribution pattern shows that the major controlling factor of runoff is rock weathering. With the analysis of triangular diagrams of anions and cations,we conclude that the source of the main ions are carbonate-evaporite weathering.
引文
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[2]刘永林,雒昆利,李玲,等.新疆天然水化学特征区域分异及其地质原因[J].地理科学,2016,36(5):794-802.
[3]叶宏萌,袁旭音,葛敏霞,等.太湖北部流域水化学特征及其控制因素[J].生态环境学报,2010,19(1):23-27.
[4]孙一博,刘朋飞,王文科,等.渭河流域地下水的水化学特征及形成机制[J].南水北调与水利科技,2016,14(2):152-158.
[5]李昭淑,黄春长,李志峰,等.沋河水库产沙条件的研究[J].西北大学学报(自然科学版),1982,(4):53-62.
[6]左建.地质地貌[M].北京:中国水利水电出版社,2012.
[7]Mitamura O,Seike Y,Kondo K,et al.First investigation of ultra-oligotrophic alpine Lake Puma Yumco in the pre-Himalaya,China[J].Limnology,2003,(4):167-175.
[8]Murakami T,Terai H,Yoshiyama Y,et al.The second investigation of Lake Puma Yum Co located in the Southern Tibetan Plateau,China[J].Limnology,2007,(8):331-335.
[9]Hopkinson C,English M C.Spatio-temporal variations ofδ18O isotope signatures of hydrological components within a glacierised mountainous basin[C]//Proceedings of the 58th Eastern Snow Conference.Ottawa,Ontario,Canada,2001.
[10]Liu F J,Williams M W,Caine N.Source waters and flow paths in an alpine catchment,Colorado Front Range,United States[J].Water Resources Research,2004,40:1-16.
[11]GB5750-2006生活饮用水标准检验方法[S].北京:中华人民共和国卫生部和中国国家标准化管理委员会,2007.
[12]武小波,李全莲,贺建桥,等.黑河上游夏半年河水化学组成及年内过程[J].中国沙漠,2008,28(6):1190-1196.
[13]温小虎,仵颜卿,许建平,等.额济纳盆地地下水盐化特征及机理分析[J].中国沙漠,2006,26(5):836-841.
[14]Gibbs R J.Mechanisms controlling world water chemistry[J].Science,1970,3962:1088-1090.
[15]李甜甜,季宏兵,江用彬,等.赣江上游河流水化学的影响因素及DIC的来源[J].地理学报,2007,62(7):764-775.
[16]王晓艳,李忠勤,周平,等.天山哈密榆树沟流域春洪期水化学特征及其控制因素研究[J].干旱区地理,2014,37(5):922-930.
[17]陈静生.河流水质及中国河流水质[M].北京:科学出版社,2006.
[18]沈照理,朱宛华,钟佐燊.水文地球化学基础[M].北京:地质出版社,1993.
[19]蒲焘,何元庆,朱国锋,等.丽江盆地地表—地下水的化学特征及其控制因素[J].环境科学,2012,33(1):48-54.
[20]徐志方.西江流域环境河水地球化学研究[D].北京:中国科学院地质与地球物理研究所硕士学位论文,2002.
[21]陈静生,陶澎,邓宝山,等.水环境化学[M].北京:高等教育出版社,1978.
[22]蔡云标.哈密市榆树沟流域地表水天然水化学特征分析[J].新疆水利,2012,(5):9-11.
[23]于奭,杜文越,孙平安,等.亚热带典型河流水化学特征、碳通量及影响因素[J].水文,2015,35(4):33-41.