摘要
渠道防渗是我国目前使用最广泛的节水工程措施,它可以极大地减少农业灌溉用水的浪费,节水潜力巨大。用渠道防渗技术后,可以极大地提高灌溉渠系水利用系数,缓解农业用水供需矛盾,可以防止渠道冲刷、淤积及坍塌,节约运行管理费用,有利于灌区的管理。可以降低地下水位,防止土壤盐碱化及沼泽化,有利于生态环境和农业现代化建设。
Canal seepage control in China at present the most widely used water saving measures, it can greatly reduce the amount of waste water for agricultural irrigation, water-saving potential. In canal seepage control technology, can greatly improve the irrigation canal system water use efficiency, can prevent the channel erosion, deposition and collapse, saving operation cost, is beneficial to the management in irrigation district. Can reduce underground water level, prevent soil salinization and swamp.
关键词
渠道渗透
节水效益
节水型农业
channel permeability
water saving benefit
water-saving agriculture
