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首页> 外文期刊>Lakes & Reservoirs >Impacts of dam construction on streamflows during drought periods in the Upper Colorado River Basin, Texas
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Impacts of dam construction on streamflows during drought periods in the Upper Colorado River Basin, Texas

机译：德克萨斯州上科罗拉多河流域干旱期间大坝建设对水流的影响

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The purpose of this study was to assess the impacts of dam construction on streamflow during a severe drought in the upper Colorado River basin (TX), upstream of Lake Buchanan reservoir. The region has experienced severe, prolonged droughts over the past century. To ameliorate the effects of drought, and increase water storage for use during dry periods, several dams were constructed on the mainstem and tributaries of the Colorado River upstream of Lake Buchanan since the late-1940s. Analysis of flow at the gauge above Lake Buchanan indicated streamflow was significantly reduced during the recent drought (2009-2014), compared with streamflows during the 'drought of record' (1950-1957). The construction of these upstream dams reduced streamflow by intercepting and storing water. It is concluded that building reservoirs in the western portion of the basin, largely in response to past droughts, although increasing water supplies for local uses, exacerbated the downstream effects of the hydrological drought, essentially making it the worst in recorded history.
机译：这项研究的目的是评估在布坎南湖水库上游的科罗拉多河上游流域（TX）发生严重干旱期间大坝建设对水流的影响。在过去的一个世纪中，该地区经历了长期的严重干旱。为了减轻干旱的影响，并增加干旱时期的蓄水量，自1940年代后期以来，在布坎南湖上游的科罗拉多河主干河和支流上修建了几座水坝。分析布坎南湖上方水位的流量表明，与“记录干旱”期间（1950-1957年）的流量相比，近期干旱（2009-2014年）的流量显着减少。这些上游水坝的建设通过拦截和储存水来减少水流。结论是，在流域西部建立水库主要是对过去的干旱的反应，尽管增加了供当地使用的水供应，但加剧了水文干旱的下游影响，从根本上说是有史以来最严重的。

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