摘要
以2001、2002两年的试验资料为基础,分析了冬麦田不同层次的土壤水分含量与0～50cm土体水分含量的相关关系,结果表明,10～20cm根系分布密集层与0～50cm土体水分含量之间关系最为密切,两者间的数量关系为:y=7.62478+0.71324x10-20。据此方程可以用根密集层的土壤含水量估测0～50cm土体的水分含量,用于指导小麦的节水灌溉。
Based on the experiment data of two years, 2001 and 2002, the correlative relation between the water content of different soil layers and the mean water content of 0-50cm depth soil in winter wheat field is analyzed in this paper. The results shows that the water content of 10-20cm depth soil layer with concentrated root has the closest relation with the mean water content of 0-50 cm depth soil, which can be expressed by the equation: y=7.62478+0.71324x10-20. The equation can be used to estimate the mean water content of 0-50cm depth soil through the water content of soil layer with concentrated root, which will guide the water saving irrigation of winter wheat.
出处
《节水灌溉》
北大核心
2004年第4期13-15,共3页
Water Saving Irrigation
关键词
冬小麦
根系密集层
计划湿润深度
土体含水量
winter wheat
soil layer with concentrated root
water content in planned irrigation depth
water saving irrigation
