摘要
黄河下游滩区具有洪水漫滩频繁、横比降大、串沟纵横、河势多变及水资源丰富等特点,因而其灌溉模式与一般平原灌区不同。随着滩区的逐步治理,已初步形成了适应滩区特点而又经济合理的灌溉模式,主要有建闸引水,自流灌溉;建闸引水,小机群提灌;固定扬水,自流灌溉;简易活动泵站、泵船提水灌溉;机井灌溉;地下管道灌溉及井渠结合灌溉等七种模式。近几年的实践证明,灌溉工程极大地推动了滩区农业发展,社会经济效益明显。
The lower Yellow River flood plain has the characteristics of frequent flood overflow,largelatteral gradient,crisscross waterways,varied river patterns and rich water resources,so the irri-gation pattern on the plain is different from the irrigation system on the ordinary plain area.Withgradual harnessment of the floodplain,an irrigation mode which was economically reasonable andsuited to the characteristics of the floodplain was preliminarily formed.The mode of irrigationmainly includes:construction of diversion gate and irrigation gravity;construction of diversiongate and irrigation by lifting water with many small machines;fixed pumping station and irriga-tion by gravity;simple movable pumping stations and irrigation by lifting water from ship—loadedpumping vessels;well irrigation;buried pipe irrigation through buried pipelines and combined ir-rigation of well and canal.etc.The practice in the recent years has proved that these irrigationworks have greatly promoted the development of agriculture in the floodplain,generating obviouseconomic and social benefits.
出处
《人民黄河》
CAS
北大核心
1993年第7期35-37,共3页
Yellow River
关键词
机井
灌溉模式
黄河下游滩区
gravity irrigation,lift irrigtation,pumped well,combination of well and canal,irriga-tion pattern,floodplain in the lower Yellow River
