会泽县冷浸田排水控制指标探讨

 冷浸田是云南省会泽县涝渍型灾害中的一个主要类型，建立会泽县冷浸田排涝渍控制指标，对建设高产稳产田具有指导作用。以涝渍水深为综合指标模型，利用规范或规程规定及经验数据确定相应指标，采用地下水渗流计算进行浸润曲线复核排水沟底深。建立了会泽县冷浸田排涝渍指标：排渍深度1.2～1.8m，耐渍深度0.5～0.8m，耐渍时间3d，稻田适宜渗漏量为8mm/d，地下水临界深度0.8～1.4m。通过工程实践与运行效果观测，排水效果明显，加强了土壤通气性，土壤排水通气顺畅。从工程设计角度采用浸润曲线复核基本尺寸的适用性。

Study on Drainage Index of Cold Water Paddy Field in Huize County

Cold water paddy field is a main type of waterlogged land disasters in Huize County, Yunnan province The establishment of flood and waterlogging drainage index was to provide guiding role to develop high and stable yield fields It was based on comprehensive index, making use of normal or regular provision and empirical data to assurance corresponding index, adoption infiltration and check the depth of drainage ditches Control gates should be built to control the underground water level, considering both irrigation and drainage The flood and water logging drainage index in Huize county are discussed, based on living example and reforming practice of cold water paddy field