摘要： 采用土体的双向切片法,研究了膜下滴灌、淹灌两种不同模式下不同土层之间以及膜灌带的不同区域之间盐分分布的差异,进而得出盐分在不同的灌溉方式下的运移规律。结果表明:盐分由于灌水方式不同各处理之间变化趋势不同,同时,由于北疆棉田采用宽窄行的种植模式,宽行和窄行以及膜灌带两侧钾素和盐分的在各土层之间含量也呈现出显著差异。滴灌处理盐分在土壤表层有轻微表积现象,随深度增加盐分含量下降;常规淹灌处理,土壤表层含盐量低于滴灌处理,而随深度增加在0~60cm深度范围内盐分含量逐渐增加。

关键词: 滴灌, 盐分, 电导率

Abstract: Based on different irrigation modes as follows: drip irrigation, flood irrigation, adopting the lateral??spid wayof the soil, it studies the difference of the two treatments in potassium and salt on their transportation and distribution insoil. It states that no matter which kind of irrigat ion way, but the trend of the content of potassium reduces with the depthof soil layer; and the variation of salt are different among different treatments, while, because of the planting mode ofadopting the wild??narrow line in the cotton field of North Xinjiang, it appears remarkable difference either among everysoil layer or the two sides around of cotton plants.

Key words: Drip irrigation, Salt, Potassium

中图分类号: 

• S562