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众所周知,我国水资源并不富裕,人均占有水量仅列世界第88位。而淮河流域又属我国的缺水区范围之内,流域人均占有水量不足全国人均水平的四分之一。尽管国民经济各部门都在呼吁水不够用,可是在国民经济各部门内浪费水的现象却普遍存在。在所有经济部类中,农业是第一大用水户,且浪费也以农业为最严重!因此,发展节水型灌溉,尤其是在水资源紧缺地区,已成为当务之急。现从工程措施角度介绍发展节水型灌溉的几种方法。 1、改进灌水技术和灌水方法灌水方法有地面灌溉、喷灌、滴灌和渗灌四种。地面灌溉是我国古老传统的广泛采用的
As we all know, our water resources are not wealthy, and the per capita amount of water is only 88th in the world. The Huaihe River Basin is within the scope of China’s water-scarce area. The water consumption per capita in the basin is less than one-fourth of the national average. Although all sectors of the national economy are calling for inadequate use of water, the phenomenon of wasting water in all branches of the national economy is widespread. Of all the economic sectors, agriculture is the largest user of water and waste is also the worst in agriculture! Therefore, the development of water-saving irrigation has become a top priority, especially in water-scarce areas. Now from the perspective of engineering measures to introduce several methods of developing water-saving irrigation. 1, improve irrigation technology and irrigation methods irrigation methods are surface irrigation, sprinkler irrigation, drip irrigation and seepage irrigation four. Surface irrigation is widely used by ancient traditions in our country