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Indexed by:期刊论文

Date of Publication:2022-07-02

Journal:Wetland Science

Volume:18

Issue:6

Page Number:719-723

ISSN No.:1672-5948

Key Words:"Xianghai wetlands; water sources; water supplement; ecological water demand; Charlson reservoir"

CN No.:22-1349/P

Abstract:The river-lake connection projects make it possible to supply water to the wetlands with multiple water sources. The water sources of Xianghai wetlands in the western Jilin province are from atmospheric precipitation,Huolin River inflow and water diverted from Taoerhe River. The characteristics of the water sources and their compensation relationships were analyzed, based on which the operation schemes of Charlson reservoir were proposed to ensure the ecological demand of the wetlands. The results indicated that on the premise of satisfying the water demands of hydropower generation and irrigation, to meet the minimum and suitable ecological water demands of the wetlands, the initial water levels of Charlson reservoir should be kept higher than 342.00 m and 346.24 m, 352.54 m and 356.49 m, 354.41 m and 358.35 m, 355.69 m and 358.74 m, respectively,in the designed years under 25%, 50%, 75% and 95% precipitation guarantee rates. The results could provide decision support for the implementation of water supply from multiple sources to Xianghai wetlands and for ensuring the comprehensive benefits of the national connectivity projects.

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