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首页> 外文期刊>Water science & technology >Spatial and temporal variation of salt ions in the surface water of Shule River valley in Gansu Province, China
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Spatial and temporal variation of salt ions in the surface water of Shule River valley in Gansu Province, China

机译：甘肃疏勒河流域地表水中盐离子的时空变化

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摘要

The objective of the study was to assess the quality of the Shule River water for irrigational purposes. Surface water samples were collected along the course of the river in May and October 2012. The samples were analyzed for pH, electrical conductivity (EC), bicarbonate, chloride, sulphate, sodium, potassium, calcium and magnesium. Surface water was generally alkaline (average pH 8.17) and water pH and total dissolved solids in May were higher than those in October. EC ranged from 0.24 to 2.15 mS cm(-1). Sodium was identified as the dominant cation, sulphate was identified as the dominant anion in May for both samples of river water but, in October, the dominant anions are respectively sulphate, bicarbonate and chloride from the upper region to the lower region. The total dissolved solids, chloride and sodium were found to exceed the permissible limits for irrigation water in the lower region. According to the principal factor analysis results, among water quality parameters measured in this study, chloride is the best indicator for monitoring water quality. The results revealed a deteriorating water quality in the lower region of the river.
机译：该研究的目的是评估疏勒河水用于灌溉目的的质量。 2012年5月和2012年10月沿河道采集了地表水样品。分析了样品的pH值，电导率（EC），碳酸氢盐，氯化物，硫酸盐，钠，钾，钙和镁。地表水通常呈碱性（平均pH值为8.17），5月份的水pH值和总溶解固体含量均高于10月份。 EC范围从0.24到2.15 mS cm（-1）。在两个河水样品中，钠均被确定为主要阳离子，硫酸根被确定为主要阴离子，但10月，主要阴离子分别为硫酸根，碳酸氢根和氯离子（从上部到下部）。发现溶解的总固体，氯化物和钠超过了下部地区灌溉用水的允许极限。根据主因子分析结果，在本研究测量的水质参数中，氯化物是监测水质的最佳指标。结果表明该河下游地区水质恶化。

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  • 来源
    《Water science & technology》 |2019年第2期|662-670|共9页
  • 作者

    Guo Quan En; Li Bao Guo; Nan Li Li; Nie Zhong Nan; Cao Shi Yu;

  • 作者单位

    Gansu Acad Agr Sci, Inst Soil Fertilizer & Water Saving, Nongkeyuanxincun 1, Lanzhou 730070, Gansu, Peoples R China|China Agr Univ, Coll Resources & Environm Sci, Yuanmingyuan West Rd 2, Beijing 100193, Peoples R China;

    China Agr Univ, Coll Resources & Environm Sci, Yuanmingyuan West Rd 2, Beijing 100193, Peoples R China;

    Gansu Agr Univ, Coll Pratacultural Sci, Yingmencun 1, Lanzhou 730070, Gansu, Peoples R China;

    Dept Econ Dev Jobs Transport & Resources, 915 Mt Napier Rd, Hamilton, Vic 3300, Australia;

    Gansu Acad Agr Sci, Inst Soil Fertilizer & Water Saving, Nongkeyuanxincun 1, Lanzhou 730070, Gansu, Peoples R China;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    chlorine ion; sodium ion; spatial and temporal variation; water quality parameters;

    机译：氯离子;钠离子;时空变化;水质参数;

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