‘寒富’苹果树茎流特征及其对环境因子的响应
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夏桂敏,孙媛媛,王玮志,吴奇,迟道才
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The Characteristics of Sap Flow of Hanfu Apple Trees and Its Response to Environmental Factors
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XIA GuiMin,SUN YuanYuan,WANG WeiZhi,WU Qi,CHI DaoCai
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表2 ‘寒富’苹果树茎流速率月际动态变化规律
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Table 2 Inter-monthly dynamic change of sap velocity rate on sunny days environmental factor daily mean of Hanfu apple trees
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| 月份Month | 观测
日期
Date | 环境因子日均值 Environmental factor daily mean | 启动时间
Start-up time | 到达峰值
时刻
Peak time | 峰值
Peak value (cm·h-1) | 下降时刻
Fall
time | 平均茎流速率
Mean sap velocity (cm·h-1) | 太阳净辐射
Rn
(W·m-2) | 大气温度
T
(℃) | 空气相对
湿度
RH (%) | 风速
Ws
(m·s-1) | 10cm土壤体积含水率10cm soil moisture content (%) | | 5 | 2017.5.19 | 285.98 | 28.91 | 29.93 | 2.66 | 12.11 | 6:30 | 12:30 | 7.17 | 17:00 | 3.41 | | 6 | 2017.6.17 | 232.30 | 30.81 | 25.01 | 2.63 | 21.72 | 6:00 | 8:30 | 12.63 | 16:30 | 5.45 | | 7 | 2017.7.17 | 314.94 | 29.78 | 50.96 | 2.26 | 18.38 | 6:30 | 9:30 | 14.25 | 17:00 | 5.89 | | 8 | 2017.8.11 | 290.49 | 28.78 | 49.50 | 1.36 | 17.80 | 6:30 | 9:00 | 15.60 | 17:00 | 6.16 | | 9 | 2017.9.15 | 172.57 | 22.00 | 40.94 | 1.32 | 14.98 | 7:00 | 10:00 | 13.92 | 14:30 | 4.75 | | 10 | 2017.10.13 | 156.23 | 11.64 | 26.80 | 1.51 | 19.27 | 8:30 | 14:00 | 13.86 | 15:30 | 5.06 |
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