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                澇災與洪災的區別


                【發稿時間 :2016-08-03 16:32 編輯: 來源:水利局

                    澇災:由於本地降水過多,地面徑流不能及時排⌒ 除,農田積水超過作物耐淹能▽力,造成農業減產的災害。造成農作物減產的原因是,積水深度過大,時間過長,使土︻壤中的空氣相繼排出,造成作物根部氧氣不足,根系部呼吸困難,並產生乙醇等有毒有害物質,從而影響作物生長,甚至造成作物死亡。 
                    洪災:洪災♂是由於江、河、湖、庫水位猛漲,堤壩漫溢∑或潰決,使客㊣ 水入境而造成的災害。澇災除對農業造成重☉大災害外,還▓會造成工業甚至生命財產的損失。
                    澇災與洪災的共同點是地表積》水Ψ (或徑流)過多,區別是澇災因本地降水▅過多而造成,洪災則是因客水入境而造』成。

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