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农业节水的内涵包括了水资源的合理开发利用与配置,输配水系统的节水,田间灌溉进程的节水,作物生长水分转化过程的节水,用水管理的节水以及农艺节水增产技术措施等方面,其目的就是大幅提高水的利用率,走出一条具有中国特色的节水灌溉道路来。一、农业水利灌溉中节水的重要性分析在我国各个用水部门中,农业用水最多,约占全国总用水量的70%~80%。但是,我国的节水灌溉处于低水平发展阶段,先进的节水灌溉技术覆盖率不足10%。农业灌溉水利用率只有25%~40%
The connotation of agricultural water saving includes rational development and utilization of water resources and allocation, water-saving transmission and distribution systems, water-saving irrigation in the field, crop growth and water conversion process of water conservation, water management and water saving agricultural production Technical measures and so on, its purpose is to substantially increase the utilization of water, out of a water-saving irrigation with Chinese characteristics to the road. First, the analysis of the importance of water conservation in agricultural irrigation In each of our water sector, the largest agricultural water, accounting for about 70% to 80% of the total water consumption. However, China’s water-saving irrigation is in a low-level development stage, and the coverage rate of advanced water-saving irrigation technology is less than 10%. Agricultural irrigation water utilization rate of only 25% to 40%