新疆棉田膜下滴灌方式下土壤水分运移变化规律研究  

Study on the Rule of Transporting and Moving of Soil Moisture under Film Drip Irrigation of Xinjiang Cotton Field

作　　者：朱友娟[1] 郑德明[1] 姜益娟[1] 

机构地区：[1]塔里木大学植物科技学院,新疆阿拉尔843300

出　　处：《新疆农业科学》2007年第5期613-618,共6页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区高校科研计划科学研究重点项目(XJEDU2004I71);塔里木大学校长基金

摘　　要：为探讨新疆棉田膜下滴灌方式下土壤水分运移的规律,在棉花不同生育期,采用烘干法,从水平方向和垂直方向上测定棉田土壤水分含量。结果表明,棉花不同生育期垂直方向上土壤含水量的变化随着土层深度的增加均呈增大的趋势;水平方向上土壤含水量的变化,除在0-35 cm各土层之间变化外,35-95 cm各土层之间基本上无明显波动变化;不同土层土壤含水量的变化随棉花生育进程,呈由苗期增长至盛花期后、下降至盛铃期又上升至吐絮期的规律,不同土层土壤含水量基本上呈直线增长的变化趋势。In order to discuss the role of transporting and moving about soil moisture under film drip irrigation of Xinjiang cotton field, based on different duration of growth of cotton, the content of soil moisture in cotton field was determined from horizontal direction and vertical direction, adopting the drying method. The result indicated that the content of soil moisture changes along with the increase of soil depth in the vertical direction at different duration of growth of cotton;As far the change of soil moisture in horizontal direction, there was no change in 35 - 95 cm soil layer , except the change in 0 - 35 cm soil layer. The content of soil moisture in different soil layer changes along with the process of cotton growth from seedling stage to full bloom stage, after that it was decreased in bell stage but it was increased again in boll opening stage.

关 键 词：棉田 膜下滴灌 水分运移 

分 类 号：S152.75[农业科学—土壤学]