冷浸田开沟排水技术规程

Technical regulations of ditching and drainage in cold waterlogged paddy field

冷浸田为我国主要中低产田之一,其改良与治理,开沟排水、防治渍害是其首要技术措施。结合国内已有研究成果及近年的实施效果,提出了冷浸田开沟排水技术规程。总体原则是排除渍水,降低地下水位;田内开沟方式应因地制宜开口字沟、日字沟、田字沟、囲字沟等,结合明沟排水、暗管排水措施引流;禾苗移栽后必须对排水沟进行清淤,以便形成排水良好的沟渠。

Cold waterlogged paddy field is one of the main medium-low yield fields. Ditching and drainage, water logging prevention are the primary technical measures for the improvement and managemenl of cold waterlogged paddy field. Combined with the existing domestic and abroad research achievements and recent implementation effects, this paper proposed the technical regulations of ditching and drainage for cold waterlogged paddy field. The general principles are getting rid of waterlogging and lowering ground water, combined with drainage by open channel and pipe, the ditching way in field adjusted to local conditions should be ditched into different shapes. It is necessary to desih drainage ditch after rice transplanting so that forming good ditch.