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利用井水灌溉是一项新的工作.井灌具有扩大耕地、增加生产的经济意义,并可作为固定水源长期为农业服务.井灌区规划的要求并不比利用地面水灌溉农场更为特殊,只是井水量小,四季变化小,水温低,汇流困难,在水利规划上应着重考虑以下几个方面.一、井灌系统规划问题目前,井灌区多为一口井、一条渠道、控制一块面积.一口井水量小,势必造成:(1)作物组成单纯或延长某种作物灌溉期;(2)水量损失大;(3)耽误机耕作业.因此,井位确定
The use of well water irrigation is a new work.Will irrigation has the economic significance of expanding cultivated land and increasing production, and can serve agriculture as a permanent water source for a long time.The planning of well irrigation area is no more special than the use of surface water irrigation farms, except wells Small amount of water, small changes in seasons, low water temperature, confluence problems, the water conservancy planning should focus on the following aspects: First, well irrigation system planning issues At present, the well irrigation area is mostly a well, a channel, control an area. Small, will inevitably result in: (1) crop composition simple or extend a period of irrigation of crops; (2) water loss; (3) delayed tillage operations.