糙隐子草功能性状对氮添加和干旱的响应

杨浩, 罗亚晨

Responses of the functional traits in Cleistogenes squarrosa to nitrogen addition and drought

YANG Hao,LUO Ya-Chen

表2 氮添加、水处理和氮水交互作用对糙隐子草叶生理性状和叶氮含量的影响

Table 2 Results of two-way ANOVAs for the effects of N addition, water treatments and their interaction on leaf photosynthetic traits and leaf nitrogen content in Cleistogenes squarrosa

	叶生理形状 Leaf photosynthetic traits													叶片氮含量 Leaf nitrogen content
	光合速率 P_n (μmol CO₂·m^-2·s^-1)		蒸腾速率 T_r (mmol H₂O·m^-2·s^-1)		气孔导度 G_s (mol H₂O·m^-2·s^-1)		胞间CO₂浓度 C_i (μmol CO₂·mol^-1)		水分利用效率 WUE (μmol CO₂·mol^-1H₂O)		气孔限制 L_s			单位质量叶片氮含量 N_mass(%)		单位面积叶片氮含量 N_area(g·m^-2)
	F	p	F	p	F	p	F	p	F	p	F	p		F	p	F	p
	氮添加 N addition	3.91	0.024^*	1.86	0.169	1.39	0.274	11.28	0.000^**	2.44	0.095	11.49	0.000^**		6.71	0.003^**	1.34	0.290
水处理 Water treatment	9.19	0.007^**	12.89	0.002^**	10.85	0.004^**	6.29	0.021^*	0.44	0.513	6.50	0.019^*		7.55	0.012^*	15.05	0.001**
氮添加×水处理 N addition × Water treatment	7.82	0.001^**	2.70	0.073	4.14	0.020^*	10.03	0.000^**	3.71	0.029^*	9.91	0.000^**		0.45	0.720	5.16	0.008**