"The Shihmen Reservoir destroyed the Tahan River, and the Techi Reservoir has brought enormous problems to the Tachia River," say environmentalists. Dams and weirs built to facilitate the collection of gravel for construction have also had a very severe impact on river ecology.
「石門水庫毀了大漢溪，德基水庫則讓大甲溪疾病纏身，」環保人士指出，為了攔砂而在河川上游築起一堵又一堵的壩堤，對水文生態的破壞十分嚴重。