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鉴湖又称镜湖、南湖、长湖、大湖,为后汉五年(140)会稽太守马臻领导筑成的人工湖。分布于古代会稽、山阴两县境,略大于今绍兴县,是江南最古老的大型农田水利工程之一。其面积超过200平方公里,沿湖设大小涵闸70余处,灌溉土地近万顷,发挥作用800余年。宋以后,由于湖区淤浅和人口激增,围湖垦田现象加剧,至南宋淳熙年间(1174—1189),终于堙废为田。
Kam Lake, also known as Mirror Lake, South Lake, Lake, the Great Lakes, for the post-Han five years (140) Habitat Ma Jue-built artificial lake leader. Distributed in the ancient Hueiji, Sanming two counties, slightly larger than Shaoxing County, is one of the oldest large farmland water conservancy projects. It covers an area of more than 200 square kilometers and has more than 70 large-sized culverts along the lake. The irrigated land is nearly 10,000 hectares and has played a role for more than 800 years. After the Song Dynasty, due to the siltation and population increase in the lake area, the phenomenon of the reclamation of the lake was aggravated. By the time of the Chun-hee period (1174-1189) in the Southern Song Dynasty, the land was finally abandoned.