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东江—深圳供水灌溉工程(以下简称东—深供水工程),自1964年建成投产以来,经过两次扩建,工程规模已由对港、九地区年供水量6800万m~3,增加到6.2亿m~3;对深圳市工农业用水的年供水量,也将由3000万m~3增至9300万m~3,至于工程沿线农田溉灌面积除在深圳市区部份,因改建特区市而减少外,在东莞县境内,灌溉耕地略有增加,变化不大.此外桥头至司马间,内涝农田约6000亩,继续收到本工程的排涝效益,并有改进.同时在丹竹头和深圳水库坝下兴建两座回收电能的小型水电站,总装机容量为6400kW,年回收电量,随供水量逐年增加而增加,到设计水平年供水港、九地区6.2亿m~3时为3100万kW·h.
The Dongjiang-Shenzhen Water Supply and Irrigation Project (hereinafter referred to as the East-Shenzhen Water Supply Project) has been expanded twice since it was put into operation in 1964. The scale of the project has increased from 68 million m 3 to Hong Kong and 9 districts to 620 million m ~ 3; The annual water supply for industrial and agricultural water in Shenzhen will also increase from 30 million m ~ 3 to 93 million m ~ 3. As far as the irrigated area of farmland along the project is concerned, in the urban area of Shenzhen, In addition, there was a slight increase in irrigated and cultivated land in Dongguan County, with little change in addition to that of the bridgehead to Sima and the waterlogging farmland of about 6,000 mu, and continued to receive drainage drainage benefits of this project with improvements. At the same time, Construction of two small hydropower stations under the reservoir dam with a total installed capacity of 6400kW and annual electricity recovery increases with the annual increase of water supply to the design level annual water supply port, 31 million kW at 620 million m3 in nine districts h