《水文科学杂志》刊登“热带地区河流中大型水坝与气候对流量的影响辨识”

作者：F. Genz,L.D. Luz

刊物：水文科学杂志，2012年，57卷第5期，1020-1034页

关键词：河流，水文相关情势，气候，大坝，水文变化

摘  要：河流水情被定义为变量或代表性曲线，也包括同气候变化造成的流量相关波动的特点。辨识流量变化的原因，是因为那些由于人类活动和气候变化造成的变化并非微不足道。从监管的水坝中，区分气候变化造成的流量变化，是一个基于年平均异常径流量和气候条件推测而得到的一个水情分类事件。通过分析流量时间曲线，证明了这种方法的适用性。通过对巴西圣弗朗西斯科河下游水情的评估发现，水电站运行对水文变化影响的责任达到59%，而干旱条件下气候的影响占到41%。

Distinguishing the effects of climate on discharge in a tropical river highly impacted by large dams

Authors：F. Genz,L.D. Luz

Journal:Hydrological Sciences Journal，Volume 57, Issue 5（2012），1020-1034

Key words: streamflow, reference regime, climate, dams, hydrological alterations

Abstract:The hydrological regime of a river is defined by variables or representative curves that in turn have characteristics related to fluctuations in flow rates resulting from climate variability. Distinguishing between the causes of streamflow variations, i.e. those resulting from human intervention in the watershed and those due to climate variability, is not trivial. To discriminate the alterations resulting from climate variation from those due to regulation by dams, a reference hydrological regime was established using the classification of events based on mean annual streamflow anomalies and inferred climatic conditions. The applicability of this approach was demonstrated by analysis of the streamflow duration curves. An assessment of the hydrological regime in the lower reaches of the São Francisco River, Brazil, after the implementation of hydropower plants showed that the operation of the dams has been responsible for 59% of the hydrological changes, while the climate (in driest conditions) has contributed to 41% of the total changes.

原文链接：http://www.tandfonline.com/doi/full/10.1080/02626667.2012.690880