【摘要】 干旱风沙区新开发井灌水地,采用低压管道输水灌溉,通过节水节电,当年种植地膜西瓜套种胡萝卜和大豆就可以收回打井上电和铺设管道的全部投资费用。低压管道输水一般使用年限在二十年以上,效益显著,值得在干旱风沙井灌区推广。更多还原

【Abstract】 All the expensive investment of electrisity used in well irrigation and paving pipelines was taken back by saving water and electrisity and applying low pressure pipelines to transport and irrigation water in the recent developing well irrigation paddy field of arid and sand blown by wind area.The water transportation by low pressure pipelines is worthy of generalizing in well irrigation field of arid and sand blown by wind area because it’s using fixed number of year is more than 20 years and it’s benefit is marked.更多还原