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Open AccessArticle

Study on the Ecological Operation and Watershed Management of Urban Rivers in Northern China

1
State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Key Laboratory for Vegetation Ecology, Ministry of Education, Jilin Provincial Science and Technology Innovation Center of Wetland Restoration and Function Development, Northeast Normal University, Changchun 130117, China
2
Key Laboratory of Environmental Materials and Pollution Control, the Education Department of Jilin Province, School of Environmental Science and Engineering, Jilin Normal University, Siping 136000, China
*
Authors to whom correspondence should be addressed.
Water 2020, 12(3), 914; https://doi.org/10.3390/w12030914
Received: 25 February 2020 / Revised: 8 March 2020 / Accepted: 20 March 2020 / Published: 24 March 2020
(This article belongs to the Special Issue Water Supply and Water Scarcity)
Small- and medium-sized rivers are facing a serious degradation of ecological function in water resource-scarce regions of Northern China. Reservoir ecological operation can restore the damaged river ecological environment. Research on reservoir ecological operation and watershed management of urban rivers is limited in cold regions of middle and high latitudes. In this paper, the urban section of the Yitong River was selected as the research object in Changchun, Northern China. The total ecological water demand and reservoir operation water (79.35 × 106 m3 and 15.52 × 106 m3, respectively) were calculated by the ecological water demand method, and a reservoir operation scheme was established to restore the ecological function of the urban section of the river. To examine the scientific basis and rationality of the operation scheme, the water quality of the river and physical habitat after carrying out the scheme were simulated by the MIKE 11 one-dimensional hydrodynamic-water quality model and the Physical Habitat Simulation Model (PHABSIM). The results indicate that the implementation of the operation scheme can improve the ecological environment of the urban section of the Yitong River. A reform scheme was proposed for the management of the Yitong River Basin based on the problems in the process of carrying out the operation schemes, including clarifying department responsibility, improving laws and regulations, strengthening service management, and enhancing public participation. View Full-Text
Keywords: ecological water demand; reservoir ecological operation; MIKE 11 model; PHABSIM model; watershed management ecological water demand; reservoir ecological operation; MIKE 11 model; PHABSIM model; watershed management
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Deng, G.; Yao, X.; Jiang, H.; Cao, Y.; Wen, Y.; Wang, W.; Zhao, S.; He, C. Study on the Ecological Operation and Watershed Management of Urban Rivers in Northern China. Water 2020, 12, 914.

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