１总则１．０．１～１．０．３我国是一个水资源不足的国家，人均水资源占有量列世界１０９位。为保证国民经济持续发展，必须树立节水意识，建立节水型社会。灌溉是用水大户，是节水的重点。进入８０年代以来，随着全球性水危机的加剧，节水灌溉事业受到党和国家的高度重视， 1 General 1.0.1 ~ 1.0.3 China is a country with insufficient water resources, and its per capita water resources occupy 109 places in the world. In order to ensure the sustainable development of the national economy, we must establish awareness of water conservation and establish a water-saving society. Irrigation is a major user of water, is the focus of water conservation. Since the 1980s, as the global water crisis intensified, the cause of water-saving irrigation has received great attention from the party and the state.