冻融条件下不同年限滴灌棉田土壤水盐运移研究  

Soil Water and Salt Movement in the Filed under Drip Irrigation with Different Years in Freeze-thaw Conditions

作　　者：马合木江.艾合买提 虎胆.吐马尔白 阿里甫江.阿不里米提 赵永成[1] 朱冬桥 

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [2]新疆水利水电学校,乌鲁木齐830013

出　　处：《灌溉排水学报》2015年第6期6-9,共4页Journal of Irrigation and Drainage

基　　金：新疆维吾尔自治区"十二五"重大专项(201130103-3);国家自然科学基金项目(51069015)

摘　　要：以常年膜下滴灌北疆棉田为研究对象，探讨了积雪消融对土壤水盐运移的影响。结果表明，季节变化对冻结层以下部分的盐分影响较小，冬季冻土层盐分处于停滞状态。春季融化雪水对表层0～10cm左右土壤盐分有洗淋作用。当春季冻土层完全融通时，地表蒸发强烈，冬季累积于结冻层中的盐分在土壤表层积聚，盐分主要集中于0～10cm土层，个别地块春季含盐量大于冬季。The effects of snowmelt on soil water and salt movement were discussed in the cotton field of the north Xinjiang. The results showed that. there was a little impact of seasonal variation on soil salt below the winter frozen soil layer, and soil salt was at a standstill in the winter frozen layer. Snowmelts in spring could leach soil salt in soil surface of 0~10 cm. When the winter frozen soil layer was fully melted, surface evaporation was strong, soil salt moved to the soil surface from accumulated salt in the winter frozen lay- er, and soil salt was mainly accumulated in 0~10 cm soil layer. Soil salt of individual plots in spring washigher than that in winter.

关 键 词：冻融 滴灌棉田 土壤水盐运移 

分 类 号：S562[农业科学—作物学] S152.7