这值得在乎吗？
Is it worth a dam?
作者信息
Joyce S
出版信息
Environ Health Perspect. 1997 Oct;105(10):1050-5. doi: 10.1289/ehp.971051050.
Once a sign of modernization and growth, dams are often seen today as symbols of environmental and social devastation. Over 800,000 dams have been built worldwide to provide drinking water, flood control, hydropower, irrigation, navigation, and water storage. Dams do indeed provide these things,but at the cost of several adverse, unexpected effects: disruption of ecosystems, decline of fish stocks, forced human and animal resettlements, and diseases such as malaria, which are borne by vectors that thrive in quiet waters.
大坝曾经是现代化和发展的标志，但如今常常被视为环境与社会破坏的象征。全球已建造了超过80万座大坝，用于提供饮用水、防洪、水力发电、灌溉、航运和蓄水。大坝确实提供了这些功能，但代价是产生了一些不利的意外影响：生态系统遭到破坏、鱼类数量减少、人类和动物被迫迁移，以及诸如疟疾等疾病，这些疾病由在静水区域大量繁殖的病媒传播。
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