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·我省在建工程中规模最大的水利项目水利工程按其规模、效益和在国民经济中的作用,分为大型、中型和小型3个等级。大型水利枢纽工程是指总库容大于1亿立方米,防洪保护面积超过100万亩,灌溉面积50万亩以上的蓄水、防洪、灌溉工程;中型水利工程是指总库容1亿至0.1亿立方米,防洪保护面积100万至30万亩,农田灌溉面积50万至5万亩的蓄水、防洪、灌溉工程;中型以下的水利设施,统称为小型水利工程。解放前,我省没有一件中型以上的水利工程。1946年官渡盘龙江上建成的谷昌水库,是解放前全省最大的一座水库,总库容220万立方米,但也只是一座小型水库。经过40多年的努力,我
The water conservancy project with the largest scale of water conservancy projects under construction in our province is divided into large, medium, and small scales according to its scale, benefits, and role in the national economy. Large-scale water conservancy projects refer to water storage, flood control and irrigation projects with a total storage capacity of more than 100 million cubic meters, flood protection protection areas exceeding 1 million mu, and irrigated areas of 500,000 mu; medium-sized water conservancy projects refer to a total storage capacity of 100 million to 0.1 billion cubic meters. m, flood control protection area of 1 million to 300,000 acres, farmland irrigation area of 500,000 to 50,000 acres of storage, flood control, irrigation works; medium-sized water conservancy facilities, collectively referred to as small-scale water conservancy projects. Before the liberation, there was no medium-sized water conservancy project in our province. Guchang Reservoir, built on Longjiang River in Guandupan in 1946, was the largest reservoir in the province before the liberation, with a total storage capacity of 2.2 million cubic meters, but it was only a small reservoir. After 40 years of hard work, I