一、引黄汉水经北京到冀东逐步形成兼作航运的灌溉渠系是当前工农业生产建設的迫切需要。在优先发展重工业、工农业并举、保証提前实現农业发展綱要四十条的建設高潮中,已开展了轟轟烈烈的水土保持消灭普通水旱灾害的初步全面水利化运动。由于华北缺水,年雨量只有300～600公厘,这与 I. The dredging of the Yellow River from Beijing to Jidong and the simultaneous dredging of shipping lines are the urgent needs of current industrial and agricultural production and construction. In the climax of the priority of developing 40 industries that give priority to the development of heavy industry, industry and agriculture and ensure the early realization of agricultural development, a vigorous campaign of water conservancy and soil conservation to eliminate ordinary floods and droughts has started a preliminary all-round water conservancy campaign. Due to the lack of water in North China, the annual rainfall is only 300 ~ 600 mm, which and