地ち表ひょう水すい

noun

surface water

Technical term used in hydrology, geography, and environmental science for water present on the ground surface, such as in rivers, lakes, and wetlands.

• この地ち域いきの地ち表ひょう水すいは農のう業ぎょう用よう水すいとして利り用ようされている。

  The surface water in this region is used for agricultural irrigation.