Phreatic zone

Cross-section of a hillslope depicting the vadose zone, capillary fringe, water table, and saturated zone

The phreatic zone, or zone of saturation, is the area in an aquifer, below the water table, in which relatively all pores and fractures are saturated with water.

The phreatic zone defines the lower edge of the vadose zone.

The phreatic zone size, color, and depth may fluctuate with changes of season, and during wet and dry periods.

单词	Phreatic zone
释义	Phreatic zone 英语例句库 Hypergenesis palaeokarst usually manifests distinct vertical zoning rule which divides into epikarst zone, vadose zone and phreatic zone. 表层岩溶带位于风化壳表层上部，风化淋滤及地表径流改造而破碎，短距离搬运堆积于地势相对较低洼的风化壳表面，形成一些溶沟、溶洞、溶缝、溶蚀洼地、溶蚀漏斗及落水洞等，其充填物主要为地表残积物和洞壁塌积物。英语百科 Phreatic zone The phreatic zone, or zone of saturation, is the area in an aquifer, below the water table, in which relatively all pores and fractures are saturated with water. The phreatic zone defines the lower edge of the vadose zone. The phreatic zone size, color, and depth may fluctuate with changes of season, and during wet and dry periods.
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