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国家近年来十分重视节水问题,提出建设节水型社会的目标,并且加大了节水项目投资力度,发展节水是即是政策的要求也是现实的需要;根据我国二次水资源现状调查评价分析,农业生产发展用水量逐年增长,而可供水量有限,部分地区地下水开采已经接近饱和,且今年来持续干旱,地表径流干枯,土地灌溉十分困难,需要发展节水;因此,探讨农田水利节水技术与措施是十分必要的。
In recent years, the state attaches great importance to the issue of water saving, put forward the goal of building a water-saving society, and increased investment in water-saving projects, the development of water saving is the policy requirement is also a realistic need; According to China’s secondary water resources survey According to the evaluation and analysis, the water consumption of agricultural production is increasing year by year, while the water supply is limited. The exploitation of groundwater in some areas is nearly saturated. This year, continuous drought, surface runoff and land irrigation are very difficult and water saving needs to be developed. Therefore, Water-saving technologies and measures are very necessary.