大坝决堤,水库排空 - 恢复白鲑鱼河

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这篇文章发表于《大众科学》的前博客网络,反映了作者的观点,不一定反映《大众科学》的观点


这是一段由摄影师安迪·梅瑟拍摄的令人惊叹的视频,记录了上个月康迪特大坝被炸药炸开的情景。这座125英尺高的大坝于1913年建在华盛顿州白鲑鱼河上,在两个多小时内排空了水库中的水。

近一百年来,白鲑鱼河首次将自由流动,恢复河流成为当地鱼类物种的自然栖息地。来自《西雅图时报》


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大坝位于河流与哥伦比亚河交汇处三英里处,拆除大坝预计将为硬头鳟重新开放约 33 英里的栖息地,为奇努克鲑鱼重新开放约 14 英里的栖息地,具体取决于不同种群的鱼类如何应对河流中的天然瀑布。

令人惊讶的是,过去一个世纪积累了如此多的淤泥,这随着时间的推移降低了发电能力,并加速了大坝的拆除。拥有康迪特大坝的电力公司发现,拆除大坝比使其达到现代环境标准更便宜。

这段视频再次提醒我们,所有形式的能源都有权衡——即使是像水力发电这样相对清洁的能源也是如此。

David Wogan is an engineer and policy researcher who writes about energy, technology, and policy.

David's academic and professional background includes a unique blend of technology and policy in the field of energy systems. Most recently, David worked at Austin Energy, a Texas municipal utility, implementing a Department of Energy stimulus grant related to energy efficiency. Previously, David was a member of the Energy & Climate Change team at the White House Council on Environmental Quality for the Obama Administration.

David holds two Master's degrees from The University of Texas at Austin in Mechanical Engineering and Public Affairs. While at UT, David was a researcher in the Webber Energy Group, where his research focused on advanced biofuel production to offset petroleum use in the transportation sector. David holds a Bachelor's of Science degree in Mechanical Engineering from The University of Texas at Austin, where he researched nuclear non-proliferation measurement technology.

David is a 2013 Aspen Institute Journalism Scholar, joining a select group of journalists from Slate, ABC News, and The New York Times.

David lives in Austin, Texas. Follow along on Twitter or email him at david.wogan@me.com.

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