The Huai River Basin is a unique area in P.R.China with the highest densities of population and water projects.It is also subject to the most serious water pollution.We proposed a distributional SWAT(Soil and Water As...The Huai River Basin is a unique area in P.R.China with the highest densities of population and water projects.It is also subject to the most serious water pollution.We proposed a distributional SWAT(Soil and Water Assessment Tool) model coupled with a water quality-quantity balance model to evaluate dam impacts on river flow regimes and water quality in the middle and upper reaches of the Huai River Basin.We calibrated and validated the SWAT model with data from 29 selected cross-sections in four typical years(1971,1981,1991 and 1999) and used scenario analysis to compensate for the unavailability of historical data regarding uninterrupted river flows before dam and floodgate construction,a problem of prediction for ungauged basins.The results indicate that dam and floodgate operations tended to reduce runoff,decrease peak value and shift peaking time.The contribution of water projects to river water quality deterioration in the concerned river system was between 0 to 40%,while pollutant discharge contributed to 60% to 100% of the water pollution.Pollution control should therefore be the key to the water quality rehabilitation in the Huai River Basin.展开更多
缺乏监测的水文数据是流域水资源科学高效管理面临的一个重大挑战,为此,国际水文科学学会认为无资料流域水文预测,简称为PUB(predictions in ungauged basins)是水文水资源研究的难点问题。随着PUB十年计划的提出,围绕该主题的研究逐渐...缺乏监测的水文数据是流域水资源科学高效管理面临的一个重大挑战,为此,国际水文科学学会认为无资料流域水文预测,简称为PUB(predictions in ungauged basins)是水文水资源研究的难点问题。随着PUB十年计划的提出,围绕该主题的研究逐渐受到国内外众多学者的关注,通过总结当前研究,本文从借“什么米”、向谁借“米”及如何使用借来的“米”三个方面对无资料流域径流模拟预测的研究方法进行了梳理。在此基础上,分析讨论当前研究存在的问题,最后结合我国的实际状况对未来研究方向进行了展望,为PUB研究提供了较为综合的信息参考。展开更多
基金Funded by the Key Project of International Cooperation of the Natural Science Foundation of China (No. 40721140020)the Key Project of the Natural Science Foundation of China (No. 40730632)
文摘The Huai River Basin is a unique area in P.R.China with the highest densities of population and water projects.It is also subject to the most serious water pollution.We proposed a distributional SWAT(Soil and Water Assessment Tool) model coupled with a water quality-quantity balance model to evaluate dam impacts on river flow regimes and water quality in the middle and upper reaches of the Huai River Basin.We calibrated and validated the SWAT model with data from 29 selected cross-sections in four typical years(1971,1981,1991 and 1999) and used scenario analysis to compensate for the unavailability of historical data regarding uninterrupted river flows before dam and floodgate construction,a problem of prediction for ungauged basins.The results indicate that dam and floodgate operations tended to reduce runoff,decrease peak value and shift peaking time.The contribution of water projects to river water quality deterioration in the concerned river system was between 0 to 40%,while pollutant discharge contributed to 60% to 100% of the water pollution.Pollution control should therefore be the key to the water quality rehabilitation in the Huai River Basin.
文摘缺乏监测的水文数据是流域水资源科学高效管理面临的一个重大挑战,为此,国际水文科学学会认为无资料流域水文预测,简称为PUB(predictions in ungauged basins)是水文水资源研究的难点问题。随着PUB十年计划的提出,围绕该主题的研究逐渐受到国内外众多学者的关注,通过总结当前研究,本文从借“什么米”、向谁借“米”及如何使用借来的“米”三个方面对无资料流域径流模拟预测的研究方法进行了梳理。在此基础上,分析讨论当前研究存在的问题,最后结合我国的实际状况对未来研究方向进行了展望,为PUB研究提供了较为综合的信息参考。
