摘要
通过数值模拟和田间试验相结合的方法,以2019-2021年田间实测数据对模型水力特性参数进行率定和验证,并利用校准模型参数模拟了42组不同情景的滴灌苹果水分胁迫量和深层渗漏量变化规律,采用HYDRUS-2D模型优化了南疆地区5 a生矮砧密植苹果滴灌灌溉制度。结果表明,南疆5 a龄矮砧密植苹果树不同生育期滴灌适宜灌溉制度是开花坐果期、果实膨大期、果实成熟期的灌水次数和灌水定额分别为6次4.5 mm、19次13.5 mm、7次9 mm;灌水周期分别为3、4和3 d。
In this paper,numerical simulation and field experiment were combined to calibrate and validate the hydraulic characteristics parameters of the model based on field measured data from 2019 to 2021,and the calibrated model parameters were used to simulate the changes of water stress and deep leakage of drip irrigation apples in 42 groups under different scenarios.HYDRUS-2D model was used to optimize the drip irrigation system of 5-year-old dwarf dense-planted apple trees in southern Xinjiang.The results showed that the optimal drip irrigation system for 5a-age apple trees in southern Xinjiang at different growth stages was 4.5 mm for 6 times,13.5 mm for 19 times and 9 mm for 7 times,respectively,in the flowering and fruit setting stage,fruit expansion stage,and fruit maturity stage.The irrigation cycle was 3 days,4 days,and 3 days,respectively.
作者
程国
张楠
张磊
赵丰年
殷姿
赵修帅
曹振玺
CHENG Guo;ZHANG Nan;ZHANG Lei;ZHAO Feng-nian;YIN Zi;ZHAO Xiu-shuai;CAO Zhen-xi(College of Water Conservancy and Architectural Engineering,Tarim University,Alar 843300,Xinjiang,China;Key Laboratory of Modern Agriculture,Department of Education,Tarim University,Alar 843300,Xinjiang,China)
出处
《节水灌溉》
北大核心
2024年第9期121-128,共8页
Water Saving Irrigation
基金
兵团节水灌溉试验计划项目(BTJSSY-202210)。
