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今年3月底,垦务局在科罗拉多河和大峡谷进行了一次为期一周的洪水泄流试验,目的是将河道底部的泥沙输移至河流两岸,并以此为手段建造有益于下游和河岸栖息地的河岸滩地;试验者还希望这次泄放的4.4亿m~3洪水能抵达作为濒危鱼种重要产卵地的回水区和沼泽地。这是美国首次进行的有科学记录的人工洪
By the end of March this year, the Bureau of Reclamation conducted a one-week flood discharge test in the Colorado River and the Grand Canyon to transport muddy sediment at the bottom of the river to both banks of the river and to use it as a means to build a habitat that benefits the downstream and riverbank habitat The experimenter also hoped that the 440 million m ~ 3 floods released this time will reach backwater areas and wetlands as important spawning grounds for endangered species. This is the first man-made flood of science in the United States