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Position: Home > Articles > Effect of Different Irrigation Quantity on Soil Temperature of Winter Wheat in Greenhouse Water Saving Irrigation 2014 (6) 10-13

不同灌水量处理对大棚冬小麦土壤温度的影响

作  者:
董波;魏新平;崔宁博
单  位:
四川大学水利水电学院;四川大学水力学与山区河流开发保护国家重点实验室
关键词:
冬小麦;灌水量;土壤温度
摘  要:
根据大棚内冬小麦试验资料,研究了不同灌水量处理对小麦土壤温度的影响。结果表明,不同灌水量处理对土壤温度变化特征的影响差异较大,低水处理土壤最高气温比高水处理高3.3℃;不同生育时期,土壤温度变化差异较大,初期各处理土壤温度差异最大达3.1℃,11月23日后各处理土壤温度差异为0.2~1℃;随着土层深度增加各处理间土壤温度变化幅度逐渐递减,表层土壤温度日变化幅度最大,在6.9~7.2℃之间,25cm处土壤温度日变化最小,1.1~2℃。试验结果将对冬小麦土壤温度的调控及指定适宜的灌溉制度提供理论依据。
译  名:
Effect of Different Irrigation Quantity on Soil Temperature of Winter Wheat in Greenhouse
作  者:
DONG Bo;WEI Xin-ping;CUI Ning-bo;State key Laboratory of Hydraulics and Mountain River Engineering Sichuan University;College of Water Resource & Hydropower Sichuan University;
关键词:
winter wheat;;irrigation amount;;soil temperature
摘  要:
According to the experimental data of greenhouse winter wheat,the effect of different irrigation quantity on soil temperature of wheat is analyzed.The results show that different irrigation quantity has large different effect on soil temperature,the soil temperature under low water quantity treatment is higher than that under high water quantity treatment by 3.3℃;the soil temperature change is large different at different growing stages,the largest temperature difference among different treatments at early stage reaches 3.1℃,while it is 0.2~1℃after November 23;the temperature difference among different treatments gradually decreases with the increase of the soil layer depth,the daily temperature variation amplitude in the surface layer is the largest,6.9~7.2℃,while that in the layer of 25cm depth is the lowest,1.1~2℃.The results will provide theoretical basis for the regulation of winter wheat soil temperature and decision of appropriate irrigation schedule.

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