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Journal of Geographical Sciences

, Volume 29, Issue 3, pp 389–405 | Cite as

Developing a comprehensive evaluation method for Interconnected River System Network assessment: A case study in Tangxun Lake group

  • Wei Yang
  • Liping Zhang
  • Yanjun ZhangEmail author
  • Zongli Li
  • Yi Xiao
  • Jun Xia
Article

Abstract

The Interconnected River System Network (IRSN) plays a crucial role in water resource allocation, water ecological restoration and water quality improvement. It has become a key part of the urban lake management. An evaluation methodology system for IRSN project can provide important guidance for the selection of different water diversion schemes. However, few if any comprehensive evaluation systems have been developed to evaluate the hydrodynamics and water quality of connected lakes. This study developed a comprehensive evaluation system based on multi-indexes including aspects of water hydrodynamics, water quality and socioeconomics. A two-dimensional (2-D) mathematical hydrodynamics and water quality model was built, using NH3-N, TN and TP as water quality index. The IRSN project in Tangxun Lake group was used as a testbed here, and five water diversion schemes were simulated and evaluated. Results showed that the IRSN project can improve the water fluidity and the water quality obviously after a short time of water diversion, while the improvement rates decreased gradually as the water diversion went on. Among these five schemes, Scheme V showed the most noticeable improvement in hydrodynamics and water quality, and brought the most economic benefits. This comprehensive evaluation method can provide useful reference for the implementation of other similar IRSN projects.

Keywords

Interconnected River System Network (IRSN) comprehensive evaluation system hydrodynamic and water quality model water environment improvement Tangxun Lake group 

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Copyright information

© Science in China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Wei Yang
    • 1
    • 2
  • Liping Zhang
    • 1
  • Yanjun Zhang
    • 1
    Email author
  • Zongli Li
    • 3
  • Yi Xiao
    • 1
  • Jun Xia
    • 1
  1. 1.State Key Laboratory of Water Resources and Hydropower Engineering ScienceWuhan UniversityWuhanChina
  2. 2.Hubei Provincial Water Resources and Hydropower Planning Survey and Design InstituteWuhanChina
  3. 3.General Institute of Water Resources and Hydropower Planning and DesignMinistry of Water ResourcesBeijingChina

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