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古地下水

古地下水,又称原生水化石水英语:Fossil Water),是一种很長時期密封於蓄水層裡的地下水。数千甚至数百万年前因為周圍地质的變化,某些地下水從此被密封於“化石含水層”裡,而不再受到地下水循環的補充,就成了所謂的化石水。

努比亚砂岩含水层系统是其中最显着的化石水儲量之一。此外,在撒哈拉沙漠喀拉哈里沙漠及美国大平原的地下也存有化石蓄水層。

化石水是种不可再生的的资源,因为不像多数的含水层般能得到自然降雨渗透水的补给,化石含水层所得到的补给基本上非常少。在沙特阿拉伯,化石水尤其被大量开采为农业灌溉[1]

參考

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  1. ^ Irrigation in Saudi Arabia (英文维基:沙特阿拉伯的灌溉系统). 2011-08-28 [2011-08-28]. (原始内容存档于2020-11-19) (英语). 

參考文獻

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古地下水
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