论文部分内容阅读
一六六团场位于塔尔巴哈台山南麓。这里五月份前降雨较多,五月份后降雨很少,正当五、六、七月作物需水期,降水量平均66.6毫米。蒸发量却达499毫米,是降水量的7.5倍。此期地面河水流量只有1300万方(斗门进水量720万方),可灌3—4万亩,其余15万余亩农作物无水可灌,只得“靠天吃饭”,农业生产极不稳定。为了在这种缺水的垦区,探索增产省水的途径,我团从一九八三年起着手自压喷灌试点建设。 喷灌区建在海拔1,270米左右的前山地带,自然坡降35‰左右。利用自然高差所形成的水压,而建成自压喷灌系统(如图一)。此系统由水源工程、进水建筑物(如图二)、喷灌网(如图三)三部分组成。除主管道埋在地下加以固定,支管和喷水装置均为移动式,从而形成半固定式自压喷灌系统。
One six six Mission field is located in Taal Ba Taishan south. There is more rainfall here before May, and there is very little rainfall after May. At the time of crop water demand in May, June and July, precipitation averaged 66.6 millimeters. Evaporation has reached 499 mm, is 7.5 times the precipitation. During this period, the flow of ground water was only 13 million square meters (Doumen water 7.2 million square feet), irrigation 3-4 million mu, the remaining 150,000 acres of crops without irrigation, only “dependent on the weather”, agricultural production is extremely unstable. In order to explore ways to increase water yield in this water-deficit reclamation area, the Pilot Project of Sprinkler Pouring began operation in 1983. Sprinkler irrigation area built about 1,270 meters above sea level in the former mountain area, natural slope about 35 ‰. The use of water pressure formed by the natural height, and the formation of pressure sprinkler system (Figure 1). This system consists of water project, water influx buildings (Figure 2), sprinkler network (Figure 3) composed of three parts. In addition to the main pipeline buried in the ground to be fixed, branch pipes and sprinklers are mobile, thus forming a semi-fixed self-pressure sprinkler system.