水すい源げん涵かん養よう林りん

noun

watershed protection forest; water conservation forest

Technical term in forestry and environmental management. Refers to forests maintained primarily to protect water resources, prevent erosion, and regulate water flow.

• この地ち域いきの水すい源げん涵かん養よう林りんは、下か流りゅうの水すい質しつを守まもる重じゅう要ような役やく割わりを果はたしている。

  The watershed protection forests in this area play an important role in safeguarding downstream water quality.