摘要
【目的】研究冬季温度和雪融水对土壤盐分运移的影响。【方法】通过设置覆膜和不覆膜测坑处理,对测坑土壤温度和盐分在整个冬季进行监测,测定不同处理下土壤温度和盐分的变化规律。【结果】气温变化对土壤温度有一定的影响,随着土壤深度的增加气温对土壤的影响逐渐减小。覆膜对土壤有一定的保温作用,各土层开春积雪融化时土壤会被雪水洗淋,表层盐分会有所减少,但是积雪融化结束后开始强烈蒸发,盐分将在表层重新积累。覆膜后测坑土壤不会受到外界积雪影响,但发现不同深度土壤盐分还是有增大的趋势。【结论】北疆滴灌棉田冬季土壤盐分运移受外界气温的影响较大。
[Objective] This study focuses on the effect of winter temperature and melted snow water on soil salt transfer.[Method] The peritoneum film measured pit and pit without peritoneum processing were set and soil temperature,water and slat in them throughout the winter were monitored and related data and rules of soil water and salt transport measured under different treatments.[Result] Temperature changes had a certain effect on soil temperature,with the increase of soil depth,the influence diminished.Peritoneum protected the soil temperature from decreasing.Soil at different depths will be wetted by melted snow water and the surface salinity will be reduced,but the melted snow water will evaporate strongly after the snow melt away,and salt will start to accumulate again in the surface.The pits covered with a layer of peritoneum film will not be affected by snow outside,but at different depths in the soil,the salt was still observed to have an increasing trend.[Conclusion] Salt transport in northern Xinjiang drip irrigation winter soil is mainly influenced by the outside temperature.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2014年第4期639-645,共7页
Xinjiang Agricultural Sciences
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(51069015)
关键词
滴灌
棉花
冬季
盐分运移
drip irrigation
cotton
winter
salt transport
作者简介
马合木江·艾合买提（1986-）,男,博士研究生,研究方向为高效节水与地下水土壤水盐运移理论,（E-mail）amraom@126.com｜
虎胆·吐马尔白（1961-）,男,教授,博士生导师,研究方向为地下水土壤水盐运移及节水灌溉理论,（E-mail）hudant@hotmail.com
