]*>","")" /> Study on Drip Irrigation Soil Salt Transport in Cotton Filed during the Winter Time in Northern Xinjiang

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Study on Drip Irrigation Soil Salt Transport in Cotton Filed during the Winter Time in Northern Xinjiang

Mahemujiang Aihemati;Hudan Tumaerbai;ZHAO Yong-cheng;ZHU Dong-qiao;LI Hui   

  • Received:2014-04-25 Revised:2014-04-25 Online:2014-04-25 Published:2014-04-25

北疆滴灌棉田冬季土壤盐分运移研究

马合木江·艾合买提;虎胆·吐马尔白;赵永诚;朱东桥;李慧   

  1. 新疆农业大学水利与土木工程学院,乌鲁木齐,830052

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.