据统计,我国农田有效灌溉面积达0.64亿hm2(9.52亿亩),其中节水灌溉工程面积达到0.27亿hm2(4.07亿亩)。农田灌溉效率不断提升,灌溉水有效利用系数达到0.52,在保持粮食连年丰收的同时,农业灌溉用水总量实现14年零增长。这些成果的取得主要依靠加快农田水利建设、形成农田水利工程体系、发展高效节水灌溉工 According to statistics, the effective irrigated area of ​​farmland in China is 46 million hectares (952 million mu), of which 272 million hectares (407 million hectares) are water-saving irrigation projects. The efficiency of farmland irrigation has been continuously improved, and the effective utilization coefficient of irrigation water has reached 0.52. While maintaining the grain harvest year after year, the total amount of agricultural irrigation water has increased by 14 years. These achievements mainly depend on accelerating the construction of farmland water conservancy, the formation of farmland water conservancy project system, the development of efficient water-saving irrigation