不同灌溉条件下杨树人工林蒸腾过程及环境响应

赵文芹, 席本野, 刘金强, 刘洋, 邹松言, 宋午椰, 陈立欣

Transpiration process and environmental response of poplar plantation under different irrigation conditions

ZHAO Wen-Qin, XI Ben-Ye, LIU Jin-Qiang, LIU Yang, ZOU Song-Yan, SONG Wu-Ye, CHEN Li-Xin

表2 毛白杨树干液流通量密度月变化特征值(平均值±标准差,n = 1 440)

Table 2 Sap flux density characteristics of Populus tomentosa at different month (mean± SD, n = 1 440)

月份 Month	处理 Treatment	启动时刻 Start time	到达峰值的时刻 Peak time	峰值 Peak F_d value (mL·m^-2·s^-1)	平均液流通量密度 Daily F_d value (mL·m^-2·s^-1)
4	DF	8:00 ± 60 min	13:00 ± 100 min	32.94 ± 3.47 ^a	10.66 ± 2.64 ^a
	DC	8:00 ± 70 min	13:00 ± 90 min	72.60 ± 4.77 ^a	24.65 ± 7.09 ^b
	CK	8:00 ± 100 min	13:10 ± 100 min	36.18 ± 3.77 ^c	12.28 ± 2.32 ^c
5	DF	6:00 ± 40 min	11:10 ± 60 min	63.87 ± 3.11 ^a	24.59 ± 6.74 ^a
	DC	6:00 ± 40 min	11:10 ± 70 min	78.83 ± 4.19 ^b	31.32 ± 8.25 ^a
	CK	6:00 ± 40 min	11:30 ± 70 min	61.61 ± 3.21 ^c	24.27 ± 6.06 ^a
6	DF	5:50 ± 50 min	12:00 ± 70 min	58.00 ± 7.73 ^a	25.03 ± 7.39 ^b
	DC	5:50 ± 50 min	12:00 ± 70 min	69.58 ± 7.43 ^b	30.80 ± 7.65 ^b
	CK	5:50 ± 50 min	12:20 ± 60 min	55.34 ± 6.18 ^ac	24.24 ± 6.15 ^b
7	DF	7:00 ± 40 min	12:00 ± 80 min	51.55 ± 4.75 ^a	19.81 ± 6.31 ^a
	DC	7:00 ± 70 min	12:30 ± 90 min	61.70 ± 5.73 ^b	25.20 ± 5.92 ^a
	CK	7:00 ± 70 min	12:30 ± 80 min	49.98 ± 6.48 ^ac	19.38 ± 5.37 ^a
8	DF	7:20 ± 40 min	12:30 ± 70 min	38.16 ± 13.18 ^a	17.00 ± 6.51 ^a
	DC	7:20 ± 40 min	13:00 ± 60 min	47.40 ± 15.02 ^a	20.98 ± 4.96 ^a
	CK	7:20 ± 40 min	13:00 ± 70 min	41.91 ± 14.63 ^a	19.09 ± 5.32 ^a
9	DF	7:40 ± 40 min	12:20 ± 60 min	35.02 ± 9.22 ^a	13.40 ± 4.52 ^a
	DC	7:40 ± 40 min	12:50 ± 60 min	42.85 ± 9.89 ^b	16.73 ± 3.40 ^a
	CK	7:40 ± 40 min	12:50 ± 50 min	38.73 ± 9.44 ^a	15.53 ± 4.82 ^a
10	DF	9:00 ± 70 min	13:00 ± 100 min	6.55 ± 8.55 ^a	3.37 ± 2.03 ^c
	DC	9:00 ± 70 min	13:30 ± 90 min	11.27 ± 11.01 ^a	4.46 ± 1.54 ^c
	CK	9:00 ± 80 min	13:30 ± 90 min	9.67 ± 10.28 ^c	3.77 ± 1.57 ^c