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| DOI：10.13522/j.cnki.ggps.2021165 |
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| Study on Calculation Method of Water Quality Compliance Rate in Water Function Area Zone of Transboundary River |
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ZENG Xianzhong, HAO Shouning
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1. Songbaishan Reservoir Management Office, Guizhou 550025, China;
2. Tibet Agriculture and Animal Husbandry University, Nyingchi 860000, China
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| Abstract: |
| The transboundary river involves many administrative regions in the upstream and downstream. The calculation of the water quality compliance rate in the water functional zone is the key and difficult point of the management of the red line of the wastewater receiving in the functional zone of the transboundary river. 【Objective】The water quality compliance rate of the functional zone of transboundary river after deducting the influence of the inflow water from upstream is calculated. 【Method】The quantitative calculation method of water quality compliance rate in the functional zone of cross-border river is proposed by constructing the water quality mathematical model. The calculation method is verified by taking Zhaosutai River in Liaohe River Basin as a typical case. 【Result】①The water quality compliance rates of Jiliao buffer zone, Heigang agricultural water zone, Zhaosutai Huangjiuguan agricultural water zone, Tiaozihe Jiliao buffer zone and Tiaozihe Jian agricultural water use zone in 2017 are 100.0%, 33.3%, 33.3%, 100.0% and 91.7% respectively. ②This method effectively deducted the influence of upstream incoming water on the water quality concentration of downstream water function zone, and reasonably calculated the water quality compliance rate of downstream water function zone. ③The results of the calculation of the water quality compliance rate in the water functional zone are higher than that of the conventional calculation method. 【Conclusion】The calculation method is more reasonable than the conventional calculation method, which can provide scientific support for the management and protection of the functional zone of cross-border river flow. |
| Key words: water function zone; water quality compliance rate; transboundary river; water quality model |
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