目前,绝大部分水库都是深式取水。出库水温低,含氧少,直接导致灌区水稻低产,对鱼类养殖和生活用水也不利。我省于1981年建成两座取表层水的浮式取水装置,都取得灌区水稻增产的效果。如大同源水库灌区每亩增产278.4斤。离水库较近的1700亩水田,1982年亩增产352斤,增长率达41.2％。表层取水方式很多。老式的斜卧式放水管虽可取表层水,但在管理上存在着劳动强度大、不安全、水头损失大等弊端。我省建成的两座浮式取水装置,取水口能随 At present, most reservoirs are deep-water intake. Low temperature out of the library, less oxygen, a direct result of low yield paddy rice, fish farming and domestic water is also detrimental. In 1981, the province built two floating-type water-taking devices that take surface water and all achieved the effect of increasing yield of paddy rice. Such as Datong source reservoir irrigation yield 278.4 kg per mu. 1700 mu of paddy fields closer to the reservoir, an increase of 352 kg in 1982 mu, an increase of 41.2%. Surface water a lot of ways. Although the old horizontal discharge pipe may be desirable surface water, but there are management in the labor-intensive, unsafe, head loss and other shortcomings. Built in our province, two floating-type water intake devices, water intake can follow