四川启动I级防汛应急响应，三峡水利枢纽将迎建库以来最大洪峰
<p>8月18日5时，四川启动<span word="I">I</span>级防汛应急响应8月18日拍摄的青衣江与洪水过后的雅安市雨城区草坝镇连续降雨已导致四川省境内22条主要河流超过警戒水位。泛滥的河水淹没了雅安和乐山市的城区，当地政府已撤离10万多受灾群众。</p><p><span word="The">The</span> <span word="Ya">Ya</span>'<span word="an">an</span> <span word="section">section</span> <span word="of">of</span> <span word="the">the</span> <span word="Qingyi">Qingyi</span> <span word="River">River</span> <span word="was">was</span> <span word="hit">hit</span> <span word="by">by</span> <span word="a">a</span> <span word="major">major</span> <span word="flood">flood</span> <span word="rarely">rarely</span> <span word="seen">seen</span> <span word="in">in</span> <span word="a">a</span> <span word="hundred">hundred</span> <span word="years">years</span>, <span word="while">while</span> <span word="water">water</span> <span word="levels">levels</span> <span word="in">in</span> <span word="the">the</span> <span word="entire">entire</span> <span word="Qingyi">Qingyi</span> <span word="River">River</span> <span word="basin">basin</span>, <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="the">the</span> <span word="lower">lower</span> <span word="reaches">reaches</span> <span word="of">of</span> <span word="Dadu">Dadu</span> <span word="River">River</span> <span word="and">and</span> <span word="Minjiang">Minjiang</span> <span word="River">River</span>, <span word="are">are</span> <span word="expected">expected</span> <span word="to">to</span> <span word="exceed">exceed</span> <span word="warning">warning</span> <span word="levels">levels</span>.</p><p>目前，青衣江雅安城区段已出现百年一遇洪水，预计整个青衣江流域将全面超过保证水位，大渡河下游、岷江下游也将出现全面超警超保洪水。</p><p>【知识点】</p><p>最近有关洪水的报道中，我们经常能看到“超警”、“超保”、“超限”等表述，其中的“警”代表“警戒水位”，“保”代表“保证水位”，“限”代表“汛限水位”。</p><p>警戒水位保证水位汛限水位九寨沟景区临时关闭</p><p><span word="The">The</span> <span word="Jiuzhaigou">Jiuzhaigou</span> <span word="National">National</span> <span word="Park">Park</span>, <span word="also">also</span> <span word="known">known</span> <span word="as">as</span> <span word="the">the</span> <span word="Jiuzhai">Jiuzhai</span> <span word="Valley">Valley</span>, <span word="a">a</span> <span word="UNESCO">UNESCO</span> <span word="world">world</span> <span word="heritage">heritage</span> <span word="site">site</span> <span word="famed">famed</span> <span word="for">for</span> <span word="its">its</span> <span word="spectacular">spectacular</span> <span word="waterfalls">waterfalls</span>, <span word="lush">lush</span> <span word="forests">forests</span>, <span word="serene">serene</span> <span word="plateau">plateau</span> <span word="lakes">lakes</span> <span word="and">and</span> <span word="karst">karst</span> <span word="rock">rock</span> <span word="formations">formations</span> <span word="in">in</span> <span word="the">the</span> <span word="mountainous">mountainous</span> <span word="areas">areas</span> <span word="of">of</span> <span word="Sichuan">Sichuan</span>, <span word="announced">announced</span> <span word="temporary">temporary</span> <span word="closure">closure</span> <span word="due">due</span> <span word="to">to</span> <span word="safety">safety</span> <span word="concerns">concerns</span>.</p><p>为安全起见，九寨沟景区临时关闭园区。九寨沟是联合国教科文组织世界遗产地，以壮观的瀑布、葱翠的森林、静谧的高原湖水以及四川山区卡斯特地貌闻名。</p>
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