中国地理科学(英文版) ›› 2010, Vol. 20 ›› Issue (1): 30-36.doi: 10.1007/s11769-010-0030-3

• 论文 • 上一篇    下一篇

Assessment of Point and Nonpoint Sources Pollution in Songhua River Basin, Northeast China by Using Revised Water Quality Model

YANG Yuhong1,2, YAN Baixing1, SHEN Wanbin3   

  1. 1. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. College of Environment and Resources, Jilin University, Changchun 130012, China
  • 收稿日期:2009-06-15 修回日期:2009-11-09 出版日期:2009-12-01 发布日期:2010-04-23
  • 通讯作者: YAN Baixing.E-mail:yanbx@neigae.ac.cn E-mail:yanbx@neigae.ac.cn
  • 基金资助:

    Under the auspices of Major State Basic Research Development Program of China (973 Program) (No.2004CB418502,No.2007CB407205);the Knowledge Innovation Programs of Chinese Academy of Sciences (No.KSCX1-YW-09-13)

Assessment of Point and Nonpoint Sources Pollution in Songhua River Basin, Northeast China by Using Revised Water Quality Model

YANG Yuhong1,2, YAN Baixing1, SHEN Wanbin3   

  1. 1. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. College of Environment and Resources, Jilin University, Changchun 130012, China
  • Received:2009-06-15 Revised:2009-11-09 Online:2009-12-01 Published:2010-04-23
  • Supported by:

    Under the auspices of Major State Basic Research Development Program of China (973 Program) (No.2004CB418502,No.2007CB407205);the Knowledge Innovation Programs of Chinese Academy of Sciences (No.KSCX1-YW-09-13)

摘要:

Individual participation of pollutants in the pollution load should be estimated even if roughly for the appropriate environmental management of a river basin.It is difficult to identify the sources and to quantify the load, especially in modeling nonpoint source.In this study a revised model was established by integrating point and nonpoint sources into one-dimensional Streeter-Phelps(S-P) model on the basis of real-time hydrologic data and surface water quality monitoring data in the Jilin Reach of the Songhua River Basin.Chemical oxygen demand(COD) and ammonia nitrogen(NH3-N) loads were estimated.Results showed that COD loads of point source and nonpoint source were 134 958 t/yr and 86 209 t/yr, accounting for 61.02% and 38.98% of total loads, respectively.NH3-N loads of point source and nonpoint source were 16 739 t/yr and 14 272 t/yr, accounting for 53.98% and 46.02%, respectively.Point source pollution was stronger than nonpoint source pollution in the study area at present.The water quality of upstream was better than that of downstream of the rivers and cities.It is indispensable to treat industrial wastewater and municipal sewage out of point sources, to adopt the best management practices to control diffuse pollutants from agricultural land and urban surface runoff in improving water quality of the Songhua River Basin.The revised S-P model can be successfully used to identify pollution source and quantify point source and nonpoint source loads by calibrating and validating.

关键词: ammonia nitrogen, chemical oxygen demand, nonpoint source pollution, point source pollution, revised water quality model, Songhua River Basin

Abstract:

Individual participation of pollutants in the pollution load should be estimated even if roughly for the appropriate environmental management of a river basin.It is difficult to identify the sources and to quantify the load, especially in modeling nonpoint source.In this study a revised model was established by integrating point and nonpoint sources into one-dimensional Streeter-Phelps(S-P) model on the basis of real-time hydrologic data and surface water quality monitoring data in the Jilin Reach of the Songhua River Basin.Chemical oxygen demand(COD) and ammonia nitrogen(NH3-N) loads were estimated.Results showed that COD loads of point source and nonpoint source were 134 958 t/yr and 86 209 t/yr, accounting for 61.02% and 38.98% of total loads, respectively.NH3-N loads of point source and nonpoint source were 16 739 t/yr and 14 272 t/yr, accounting for 53.98% and 46.02%, respectively.Point source pollution was stronger than nonpoint source pollution in the study area at present.The water quality of upstream was better than that of downstream of the rivers and cities.It is indispensable to treat industrial wastewater and municipal sewage out of point sources, to adopt the best management practices to control diffuse pollutants from agricultural land and urban surface runoff in improving water quality of the Songhua River Basin.The revised S-P model can be successfully used to identify pollution source and quantify point source and nonpoint source loads by calibrating and validating.

Key words: ammonia nitrogen, chemical oxygen demand, nonpoint source pollution, point source pollution, revised water quality model, Songhua River Basin