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北京城市地表河流硝酸盐氮来源的氮氧同位素示踪研究

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任玉芬, 张心昱, 王效科, 贺成武, 侯培强, 徐志伟, 欧阳志云. 北京城市地表河流硝酸盐氮来源的氮氧同位素示踪研究[J]. 环境工程学报, 2013, 7(5): 1636-1640.
引用本文: 任玉芬, 张心昱, 王效科, 贺成武, 侯培强, 徐志伟, 欧阳志云. 北京城市地表河流硝酸盐氮来源的氮氧同位素示踪研究[J]. 环境工程学报, 2013, 7(5): 1636-1640.
shu
Ren Yufen, Zhang Xinyu, Wang Xiaoke, He Chengwu, Hou Peiqiang, Xu Zhiwei, Ouyang Zhiyun. Application of nitrogen and oxygen isotopes in study of nitrate sources in Beijing urban rivers[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1636-1640.
Citation: Ren Yufen, Zhang Xinyu, Wang Xiaoke, He Chengwu, Hou Peiqiang, Xu Zhiwei, Ouyang Zhiyun. Application of nitrogen and oxygen isotopes in study of nitrate sources in Beijing urban rivers[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1636-1640.
shu

北京城市地表河流硝酸盐氮来源的氮氧同位素示踪研究

  • 1.

    中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京 100085

  • 2.

    中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,北京 100101

  • 3.

    河南理工大学资源环境学院,焦作 454003

  • 基金项目:

    中国科学院知识创新工程重要方向项目 (KZCX2-EW-310)

    国家自然科学基金面上项目(41030744和40901265)

  • 中图分类号: X522

Application of nitrogen and oxygen isotopes in study of nitrate sources in Beijing urban rivers

  • 1.

    State key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

  • 2.

    Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

  • 3.

    College of Resource and Environment, Henan Polytechnic University, Jiaozuo 454003, China

  • Fund Project:

摘要

  • 摘要: 为了有效防治城市地表河流硝酸盐氮的污染并进行针对性水体治理,利用δ15N和δ18O双同位素示踪技术,对北京城区地表河流硝酸盐污染进行了溯源。选取北京9条河流的10个监测点,分析了硝酸盐氮污染的浓度分布特征,并运用MAT253氮氧双同位素技术解析了硝酸盐的各种来源。研究结果表明,北京城区地表河流硝酸盐氮污染自上游至下游逐渐加重,上游8个监测点的硝酸盐氮平均浓度在0.7～3.4 mg/L之间,下游东护城河和通惠河2处硝酸盐氮的浓度均值分别达7.6 mg/L和7.0 mg/L。利用同位素质谱MAT253分析,得知北京城区地表河流δ15N值总体分布范围为-1.2‰～+28.88‰,δ18O值分布范围为+0.09‰～+6.62‰,依据δ15N和δ18O的特征范围,得出北京城区地表河流硝酸盐来源主要是粪肥和污水。
    Abstract: In order to protect urban surface water quality and provide proper solutions to reduce nitrate pollution, nitrogen and oxygen isotopes δ(15N and 18O) were used to trace sources of nitrate in urban rivers. 10 sampling sites on 9 rivers in Beijing were selected to analyze the spatial pattern of nitrate pollution. Results showed that the rivers were seriously polluted by nitrate, especially in the downstream. Mean nitrate concentration was between 0.7 mg/L and 3.4 mg/L for the 8 sites in the upstream, and 7.6 mg/L and 7.0 mg/L respectively for Donghucheng River and Tonghui River in the downstream. Using isotope mass spectrometer MAT253, the nitrogen and oxygen isotope values were measured. The values of δ15N and δ18O, which explained different sources of nitrate of urban rivers in different river segments, ranged from -1.2‰ to +28.88‰ and from +0.09‰ to +6.62‰, respectively. The results of δ15N and δ18O indicate that manure and sewage are the two main sources of nitrate in Beijing urban surface waters.
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    [12] 肖化云,刘丛强,李思亮. 贵阳地区夏季雨水硫和氮同位素地球化学特征.地球化学,2003,32(3):248-254 Xiao H.Y, Liu C.Q., Li S.L. Geochemical characteristics of sulfur and nitrogen isotopic compositions in rains of Guiyang in summer. Geochimica, 2003, 32(3): 248-254(in Chinese)
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出版历程
  • 收稿日期:  2012-02-08
  • 刊出日期:  2013-05-22
任玉芬, 张心昱, 王效科, 贺成武, 侯培强, 徐志伟, 欧阳志云. 北京城市地表河流硝酸盐氮来源的氮氧同位素示踪研究[J]. 环境工程学报, 2013, 7(5): 1636-1640.
引用本文: 任玉芬, 张心昱, 王效科, 贺成武, 侯培强, 徐志伟, 欧阳志云. 北京城市地表河流硝酸盐氮来源的氮氧同位素示踪研究[J]. 环境工程学报, 2013, 7(5): 1636-1640.
shu
Ren Yufen, Zhang Xinyu, Wang Xiaoke, He Chengwu, Hou Peiqiang, Xu Zhiwei, Ouyang Zhiyun. Application of nitrogen and oxygen isotopes in study of nitrate sources in Beijing urban rivers[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1636-1640.
Citation: Ren Yufen, Zhang Xinyu, Wang Xiaoke, He Chengwu, Hou Peiqiang, Xu Zhiwei, Ouyang Zhiyun. Application of nitrogen and oxygen isotopes in study of nitrate sources in Beijing urban rivers[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1636-1640.
shu

北京城市地表河流硝酸盐氮来源的氮氧同位素示踪研究

  • 1.  中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京 100085
  • 2.  中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,北京 100101
  • 3.  河南理工大学资源环境学院,焦作 454003
  • 收稿日期:  2012-02-08
基金项目:

中国科学院知识创新工程重要方向项目 (KZCX2-EW-310)

国家自然科学基金面上项目(41030744和40901265)

摘要: 为了有效防治城市地表河流硝酸盐氮的污染并进行针对性水体治理,利用δ15N和δ18O双同位素示踪技术,对北京城区地表河流硝酸盐污染进行了溯源。选取北京9条河流的10个监测点,分析了硝酸盐氮污染的浓度分布特征,并运用MAT253氮氧双同位素技术解析了硝酸盐的各种来源。研究结果表明,北京城区地表河流硝酸盐氮污染自上游至下游逐渐加重,上游8个监测点的硝酸盐氮平均浓度在0.7～3.4 mg/L之间,下游东护城河和通惠河2处硝酸盐氮的浓度均值分别达7.6 mg/L和7.0 mg/L。利用同位素质谱MAT253分析,得知北京城区地表河流δ15N值总体分布范围为-1.2‰～+28.88‰,δ18O值分布范围为+0.09‰～+6.62‰,依据δ15N和δ18O的特征范围,得出北京城区地表河流硝酸盐来源主要是粪肥和污水。

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