欧洲一些地区目前正经历着20世纪最严重的干旱期,河流干涸、水库水位下降,旱情和淡水的匮乏使许多地方不得不采取节水紧急措施——法国西部的一些地方已关闭了游泳池,明令禁止用水洗刷汽车;在西班牙,一些水库的存水只有20～30％,已经禁止给街道和花园浇水,英国东南部的河流已接近干涸,已禁止部分地区从河中取水……,总之,淡水已十分匮乏! 究其水量减少的原因时,多归结于两个方面:一 Some parts of Europe are currently experiencing the worst drought period of the 20th century, rivers are drying up, water levels in reservoirs are declining, drought and lack of fresh water have led many to resort to water-saving emergency measures - in some parts of western France, swimming pools have been closed, Prohibit the use of water to wash the car; in Spain, some reservoirs have only 20 to 30% of the water, has been banned to the streets and gardens water, rivers in the southeastern United Kingdom has almost dried up, in some areas have been banned from taking water from the river ... ... In short, fresh water Has been very scarce! Study of the reasons for the reduction of water, mostly due to two aspects: First,