环境因子对常绿阔叶树种脱耦联系数及冠层气孔导度估算的影响

张振振,赵平,赵秀华,张锦秀,朱丽薇,欧阳磊,张笑颜

Impact of environmental factors on the decoupling coefficient and the estimation of canopy stomatal conductance for ever-green broad-leaved tree species

ZHANG Zhen-Zhen,ZHAO Ping,ZHAO Xiu-Hua,ZHANG Jin-Xiu,ZHU Li-Wei,OUYANG Lei,ZHANG Xiao-Yan

表3 不同冠层脱耦联系数(Ω)区间范围尾叶桉和木荷的冠层气孔导度对水汽压亏缺的敏感性(-m)和参比气孔导度(G_Siref)之间的比例(P_i)

Table 3 The proportion between the ratio of the sensitivity of canopy stomatal conductance to vapor pressure deficit (-m) and stomatal conductance at vapor pressure deficit = 1 kPa (G_Siref) (P_i) for Ecalyptus urophylla and Schima superba at each canopy decoupling coefficient (Ω) interval

树种 Species	Ω区间 Ω interval	P_i
	0.00-0.05	-
	0.05-0.10	0.57 (0.06)
尾叶桉 E. urophylla	0.10-0.15	0.58 (0.06)
尾叶桉 E. urophylla	0.15-0.20	1.04 (0.16)^**
	0.20-0.25	8.32 (7.62)^**
	0.25-0.3	1.43(5.02)^**
	0.00-0.05	-
	0.05-0.10	0.75 (0.13)^**
木荷 S. superba	0.10-0.15	0.61 (0.10)
木荷 S. superba	0.15-0.20	0.58 (0.08)
	0.20-0.25	0.70 (0.13)^**
	0.25-0.30	1.21 (0.40)^**