Qingtian county, Lishui City, Qingjing Green Line. Lishui, formerly known as Chuzhou, is a prefecture-level city with the largest land area under the jurisdiction of Zhejiang Province. Located in the southwest of Zhejiang Province. Qingtian Dayi Reservoir is located in Qingjing Green Line, qingtian county, Lishui City, Zhejiang Province. It is a medium-sized reservoir in Lishui. Lishui is an excellent tourist city in China, a national tourism demonstration zone, an international leisure and health city, a national garden city and a national civilized city.