| 摘要: |
| 跨界河流涉及上下游多个行政区域，其水功能区水质达标率计算是跨界河流水功能区限制纳污红线管理的重点和难点。【目的】计算扣除上游入境来水影响后的跨界河流水功能区水质达标率。【方法】通过构建水质数学模型提出了定量化的跨界河流水功能区水质达标率计算方法，以辽河流域的招苏台河为典型案例验证了该计算方法。【结果】①采用该方法计算得到2017年招苏台河吉辽缓冲区、招苏台河黑岗农业用水区、招苏台河黄酒馆农业用水区、条子河吉辽缓冲区和条子河林家农业用水区的水质达标率分别为100.0%、33.3%、33.3%、100.0%、91.7%。②该方法有效扣除了上游入境来水对下游水功能区水质浓度的影响，合理计算了下游水功能区水质达标率。③该方法得到的水功能区水质达标率计算结果高于常规计算方法。【结论】该计算方法比常规计算方法更为合理，可为跨界河流水功能区管理和水资源保护提供科学支撑。 |
| 关键词: 水功能区;水质达标率;跨界河流;水质模型 |
| DOI： |
| 分类号:X522 |
| 基金项目: |
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| Study on Calculation Method of Water Quality Compliance Rate in Water Function Area of Transboundary River |
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Zeng xianzhong1,2, Hao shouning2
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1.Songbaishan Reservoir Management Office;2.Tibet Agriculture and Animal Husbandry University
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| Abstract: |
| The cross-border River involves many administrative regions in the upstream and downstream. The calculation of the water quality standard rate in the water functional area is the key and difficult point of the management of the red line of the wastewater receiving in the functional area of the cross-border river. 【Objective】The water quality standard rate of the functional area of cross-border River after deducting the influence of the inflow water from upstream is calculated. 【Method】The quantitative calculation method of water quality standard rate in the functional area 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】① The water quality standard rates of Jiliao buffer area, Heigang agricultural water area, Zhaosutai Huangjiuguan agricultural water area, Tiaozihe Jiliao buffer zone and Tiaozihe Jian agricultural water use area in 2017 are 100.0%, 33.3%, 33.3%, 100.0% and 91.7% respectively. ② This method effectively deducted the influence of upstream incoming water on the water quality concentration of downstream water function area, and reasonably calculated the water quality standard rate of downstream water function area. ③ The results of the calculation of the water quality standard rate in the water functional area 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 area of cross-border river flow. |
| Key words: water function area; water quality compliance rate; transboundary river; water quality model |
