论文部分内容阅读
德州市位于山东省西北部,是山东省重要的粮棉产区,总面积10356km~2,总人口519.8万人,耕地面积5652km~2。为此,近年来我市加快了节水工程建设步伐,截止1998年底,全市共建设微灌面积0.167万hm~2,大田喷灌0.668万hm~2,管道灌溉2.2万hm~2,为缓解我市水资源供需矛盾发挥了重要作用。但在节水工程的运行过程中,有一种水锤现
Dezhou is located in the northwest of Shandong Province and is an important grain and cotton producing area in Shandong Province. The total area is 10,356 km 2, with a total population of 5,198,000 and a cultivated area of 5,652 km 2. To this end, in recent years, the city accelerated the pace of construction of water-saving projects, the end of 1998, the city’s total construction of micro-irrigation area of 1,167,000 hm ~ 2, field sprinkler irrigation 0.668 million hm ~ 2, irrigation 22,000 hm ~ 2 pipeline, The contradiction between supply and demand of water resources plays an important role. However, in the operation of water-saving projects, there is a water hammer