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荷兰国土总面积约41000平方里,有1/4的土地低于海平面,最低竟达6～7米,全国可耕地面积约300万公顷,人口约1400多万。这样一个低洼小国,农业上何以能解决水利问题,而成为世界上农产品出口量居第三位的国家呢。主要就是能正确处理地下水,将堤防、渠道、暗管、风车、泵站组成了一个全国排灌、排涝、排渍的治理系统。现介绍荷兰在农业排灌中用得最多的螺旋泵和高效率混凝土预制混流泵的技术情况。
The total land area of the Netherlands is about 41,000 square miles. One quarter of the land is below sea level with the lowest level of 6-7 meters. The country has arable land of about 3 million hectares and a population of about 14 million. As a small, low-lying country, agriculture can solve the problem of water conservancy and become the third largest country in the world for the export of agricultural products. Mainly to correctly handle the groundwater, the embankment, channel, underground pipe, windmill, pumping station formed a national irrigation and drainage, drainage management system. Now introduced in the Netherlands, irrigation and irrigation in agriculture most of the spiral pump and efficient concrete precast mixed flow pump technology.