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采用棉田土壤土体的双向切片法,研究了膜下滴灌、淹灌两种不同灌溉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,得出盐分在不同的灌溉方式下的运移规律。结果表明:由于灌水方式不同导致土壤耕层不同空间部位土壤盐分变化趋势不同。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。
Using bi-directional slicing method of soil and soil in cotton field, the salt distributions between different soil layers and between different regions of film irrigation under two different irrigation modes under drip irrigation and flooded irrigation were studied. The results showed that under different irrigation modes The law of migration. The results show that there are different trends of soil salinity in different spatial parts of soil topsoil due to different irrigation methods. At the same time, due to the wide and narrow planting patterns in northern Xinjiang cotton fields, the contents of potassium and salt on the wide and narrow rows and on both sides of the film irrigation zone also show significant differences among the soil layers. Salt drip irrigation showed a slight surface phenomenon in the soil surface, and the salt content decreased with the increase of depth. Salt water content in the soil surface was lower than that in the drip irrigation by conventional flooding treatment, while the salt content increased gradually with the depth increasing in the depth of 0-60cm.