唐山市滦河下游灌区是华北地区最大的水稻灌区,由于历年来滦河水量充沛、水价较低,灌区内一直沿用大水漫灌的灌溉方式,年亩均田间用水量在700m3左右。近年,随着工农业的不断发展,加之华北地区干旱少雨,灌区水资源日益短缺,对此,灌区管理部门在积极推行各种节水措施的同时,逐步完善计划用水管理体制,使亩均田间用水量降至400m3左右,取得较好的节水效果。 The Lishui River downstream irrigation area in Tangshan City is the largest rice irrigation area in North China. Due to abundant water and low water price in the Luanhe River, the irrigated area has been flooded with irrigation water for many years. The average annual water consumption per mu is about 700 m3. In recent years, along with the continuous development of industry and agriculture and the arid and rainy weather in northern China, the water resources in irrigated areas are in short supply. In response to this, the management departments of irrigated areas actively implement various water-saving measures and gradually improve the planned water management system so that mu land The amount dropped to about 400m3, get better water saving effect.