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(一)平原地区选择喷灌地块要注意靠近水源、电源,地块形状方整,尽量使加压泵站位于地块中央,以减少管道用量和输水管水头损失、降低投资造价和运行费用。管系布置时要充分考虑原有的道路,林带和排水沟系,尽量避免管道穿越道路和沟渠,一般情况下不应打乱原有的排水系统。支管应尽量顺耕作垅向布置,以利轮灌和机耕。有可能时宜将支管布置成垂直主风向,以便增大布置间距。
(A) plain area of sprinkler irrigation plots should pay attention to the water, power, land shape square, try to make the pressure pump station is located in the center of the block, in order to reduce the amount of pipelines and water pipe head loss, reduce investment costs and operating costs. Piping arrangement should take full account of the original road, forest belt and drainage system, try to avoid the pipeline through roads and ditches, under normal circumstances should not disrupt the original drainage system. Branch pipe should be arranged as far as possible to facilitate irrigation and tillage. When possible it is advisable to arrange the branch pipes in a vertical main wind direction in order to increase the arrangement distance.