近二十多年来,珠江三角洲将原来只是单纯供农田灌溉用的蓄水工程改建为灌溉,发电两用的水库。据不完全统计,在库容为500～5000万米~3、总库容为21亿米~3、灌溉农田面积为170万亩、水库电站总装机容量5.15万千瓦、年发电量1.6亿千瓦小时的近百座中小型水库中,而属于以后改建成为灌溉、发电两用的就有36 In the past two decades or so, the Pearl River Delta has rebuilt the water storage project originally used for irrigation of farmland only for irrigation and power generation. According to incomplete statistics, the storage capacity is 500-500 million m 3, the total storage capacity is 2.1 billion m 3, the area of ​​irrigated farmland is 1.7 million mu, the total installed capacity of reservoirs is 51,500 kw, and the annual generating capacity is 160 million kw Nearly 100 small and medium-sized reservoirs, and later converted into irrigation, power generation dual-use 36