要实现真正实质性的节水,关键在于对所选择的节水项目在技术、经济和制度方面进行科学评估。提高灌溉系统的可持续性和实现节水的要点如下:建立取水量和取水管理制度,进行水权的界定,开展水权的交易和管理,改进田间用水的分布和管理,减少输水过程中的损失。减少地下水开采量,完 The key to achieving true substantive water savings is the scientific, technical, economic and institutional assessment of selected water conservation projects. The main points of improving the sustainability of irrigation systems and achieving water conservation are as follows: Establishing water abstraction and water abstraction regimes, defining water rights, trading and managing water rights, improving the distribution and management of water use in the field, and reducing the water transfer process Loss. Reduce the amount of groundwater extraction, finished