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史晓宜, 何元庆, 蒲焘, 何则, 牛贺文. 玉龙雪山周边典型河流的水化学日变化特征[J]. 环境化学, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
引用本文: 史晓宜, 何元庆, 蒲焘, 何则, 牛贺文. 玉龙雪山周边典型河流的水化学日变化特征[J]. 环境化学, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
shu
SHI Xiaoyi, HE Yuanqing, PU Tao, HE Ze, NIU Hewen. Chemical composition and daily variation characteristics of a typical river catchment in Mt. Yulong region[J]. Environmental Chemistry, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
Citation: SHI Xiaoyi, HE Yuanqing, PU Tao, HE Ze, NIU Hewen. Chemical composition and daily variation characteristics of a typical river catchment in Mt. Yulong region[J]. Environmental Chemistry, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
shu

玉龙雪山周边典型河流的水化学日变化特征

  • 1.

    兰州大学资源环境学院西部环境教育部重点实验室, 兰州, 730000;

  • 2.

    中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室, 兰州, 730000

  • 基金项目:

    国家自然科学基金(41273010,41401083)

    中国科学院重点部署项目(KJZD-EW-G03-04)

    中国科学院寒区旱区环境与工程研究所人才基金(Y451181001)

    中国博士后基金(2014M552517)

    冰冻圈科学国家重点实验室自主课题(SKLCS-ZZ-2015-01-03)资助.

Chemical composition and daily variation characteristics of a typical river catchment in Mt. Yulong region

  • 1.

    Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China;

  • 2.

    State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, 730000, China

  • Fund Project:

  • 摘要: 通过分析于2009 年9 月22 日—28 日期间, 在玉龙雪山周边河流白水河采集的河水样品(采样间隔为2 h), 对冰雪融水补给径流的日变化特征及其规律进行了深入研究.结果表明, 白水河水中所测的阴离子以SO42-含量最高, 其次为NO3-和Cl-;阳离子中主要以Ca2+、Mg2+为主, 其次为Na+、K+, 不同于冰雪融水中的离子浓度序列Ca2+ > Na+ > K+ > Mg2+, 反映了流域内基岩岩性对河水化学性质的影响;水体的pH值平均8.6, 电导率介于29.9—73.5 μS·cm-1之间, 日周期波动幅度较大;受降雨影响时段, 各离子含量峰值通常出现在16:00左右, 各离子含量随降雨量的增加呈增加态势(除SO42-、NO3-外);在无降雨影响下, 随径流量的增加, 各离子含量表现出减小趋势.
    Abstract: This study focused on the diurnal variation of major ions in Baishui river around Yulong Mountain.Water samples were collected continuously from 22th to 28th September, 2009, with a sampling interval of two hours. The samples were analyzed for their chemical composition, and the diurnal variation characteristics and pattern were investigated.The results showed that SO42- and NO3- were the most abundant anions.Meanwhile water samples were mildly alkaline and were rich in Ca2+ and Mg2+ cations, which is different from the ion distribution in glacier melt water (Ca2+ > Na+ > K+ > Mg2+). It reflected the influence of bedrock lithology on the water chemistry in Mt. Yulong area. Mean pH value of the river water was 8.6, and the conductively varied between 29.9 to 73.5, which showed obvious diurnal fluctuation. The peak value of ion concentrations usually appeared at about 16:00 each day, displaying positive correlations with the amount of rainfall (except for SO42-, NO3-) during the period of rainfall.With the increase of runoff, concentrations of most ion showed a decreased trend without rain.
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  • 收稿日期:  2015-01-20
  • 刊出日期:  2015-10-15
史晓宜, 何元庆, 蒲焘, 何则, 牛贺文. 玉龙雪山周边典型河流的水化学日变化特征[J]. 环境化学, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
引用本文: 史晓宜, 何元庆, 蒲焘, 何则, 牛贺文. 玉龙雪山周边典型河流的水化学日变化特征[J]. 环境化学, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
shu
SHI Xiaoyi, HE Yuanqing, PU Tao, HE Ze, NIU Hewen. Chemical composition and daily variation characteristics of a typical river catchment in Mt. Yulong region[J]. Environmental Chemistry, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
Citation: SHI Xiaoyi, HE Yuanqing, PU Tao, HE Ze, NIU Hewen. Chemical composition and daily variation characteristics of a typical river catchment in Mt. Yulong region[J]. Environmental Chemistry, 2015, 34(10): 1895-1900. doi: 10.7524/j.issn.0254-6108.2015.10.2015012004
shu

玉龙雪山周边典型河流的水化学日变化特征

  • 1.  兰州大学资源环境学院西部环境教育部重点实验室, 兰州, 730000;
  • 2.  中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室, 兰州, 730000
  • 收稿日期:  2015-01-20
基金项目:

国家自然科学基金(41273010,41401083)

中国科学院重点部署项目(KJZD-EW-G03-04)

中国科学院寒区旱区环境与工程研究所人才基金(Y451181001)

中国博士后基金(2014M552517)

冰冻圈科学国家重点实验室自主课题(SKLCS-ZZ-2015-01-03)资助.

摘要: 通过分析于2009 年9 月22 日—28 日期间, 在玉龙雪山周边河流白水河采集的河水样品(采样间隔为2 h), 对冰雪融水补给径流的日变化特征及其规律进行了深入研究.结果表明, 白水河水中所测的阴离子以SO42-含量最高, 其次为NO3-和Cl-;阳离子中主要以Ca2+、Mg2+为主, 其次为Na+、K+, 不同于冰雪融水中的离子浓度序列Ca2+ > Na+ > K+ > Mg2+, 反映了流域内基岩岩性对河水化学性质的影响;水体的pH值平均8.6, 电导率介于29.9—73.5 μS·cm-1之间, 日周期波动幅度较大;受降雨影响时段, 各离子含量峰值通常出现在16:00左右, 各离子含量随降雨量的增加呈增加态势(除SO42-、NO3-外);在无降雨影响下, 随径流量的增加, 各离子含量表现出减小趋势.

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