水すい源げん地ち

noun

source of a river; headwaters; water source area

Refers to the geographical area where a river or water supply originates, often used in environmental or geographical contexts.

• この川かわの水すい源げん地ちは国こく立りつ公こう園えんの中なかにある。

  The source of this river is inside the national park.

• 水すい源げん地ちの森しん林りんを守まもることは、きれいな水みずを保たもつために重じゅう要ようだ。

  Protecting the forests in the water source area is important for maintaining clean water.