摘要
利用北京市通州区某日光温室草莓成熟时段的环境因子观测资料,基于水量平衡方程对温室内的蒸发蒸腾量进行了计算,通过经验公式估算了由于自然通风产生的水汽散失量.结果表明:日光温室单元在典型时段内,蒸发蒸腾量占总灌水量的63.3%,通风水汽散失消耗总灌水量的17.4%.通风过程引起的水汽散失量不可再利用,是实际水量损失的重要组成部分.
Observed data of greenhouse in Tongzhou District,Beijing during the period of strawberry maturation were used.Evapotranspiration was estimated by balance equation of hydrological processes,and water losses were estimated through ventilation model under natural ventilation.Data showed that 17.4% of irrigation water was consumed by ventilation in the duration of greenhouse,which could not be used and became the main part of actual water loss.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第5期445-448,共4页
Journal of Beijing Normal University(Natural Science)
关键词
日光温室
蒸发蒸腾
自然通风
水汽散失
greenhouse
evapotranspiration
natural ventilation
water loss
