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三峡-葛洲坝梯级水电站蓝水足迹的计算与影响因子分析 被引量:5

Calculation and analysis of the impact factor of blue water footprint on Three Gorges and Gezhouba cascade hydropower stations
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摘要 本文计算了三峡-葛洲坝梯级水电站的蓝水足迹,并结合前人的研究成果分析了蓝水足迹的时空变化规律。结果表明,三峡-葛洲坝梯级水电站的多年平均蓝水足迹为2.09m3/gj,在已有计算成果中属于较低水平,说明从蓝水足迹的角度评价,开发三峡-葛洲坝梯级水电站是有优势的。水电站蓝水足迹具有时间变异性,其随时间的变化(年内、年际、多年变化)主要取决于时间影响因子,即气象和水文因素,为了使计算结果较好的代表多年平均情况,计算资料宜选择10年或以上;不同水电站蓝水足迹的差异主要取决于空间影响因子,即水库和水电站的参数,但在移用已有成果中的规律时,要注意资料口径的一致性。以上结论可为水电站蓝水足迹的计算提供参考。 This paper calculates the blue water footprints and analyses their main impact factors of temporal and spatial variations for the Three Gorges and Gezhouba cascade hydropower stations. Results show that multi-year average water footprint on these stations is 2.09m3/gj, a value on a lower level among the existing calculations, and that the construction of the two stations is advantageous from the perspective of water footprint. Water footprint variations over time (in a year or many years) mainly depend on its time impact factors, namely meteorological and hydrological factors. A data record length of no less than 10 years should be used for multi-year average calculations. The spacial variations depend on spatial impact factors such as the parameters of reservoir and hydropower stations and the related consistency of data needs be considered when referring the results in the previous studies. The present results would be helpful for calculation of blue water footprint for other hydropower stations.
出处 《水力发电学报》 EI CSCD 北大核心 2014年第2期82-89,共8页 Journal of Hydroelectric Engineering
基金 国家自然科学基金资助项目(51279062 51179130) 高校基本业务费重点项目(12zx04) 中央高校基本科研业务费专项资金资助(13QN22)
关键词 蓝水足迹 影响因子 三峡-葛洲坝梯级水电站 blue water footprint impact factors Three Gorges and Gezhouba cascaded hydropower stations
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