柠檬酸对土壤⁃柳树系统中Cd⁃芘污染生物有效性影响

邓林, 张娟娟, 谢探春, 王晓琳, 尹颖

Effects of citric acid on the bioavailability of Cd⁃pyrene contamination in soil⁃willow system

Lin Deng, Juanjuan Zhang, Tanchun Xie, Xiaolin Wang, Ying Yin

表2 柠檬酸对柳树叶片气体交换参数的影响

Table 2 Photosynthetic rate (P_n),stomatal conductance (g_s),and intercellular CO₂ concentration (C_i) in leaves of willow

Treatment		P_n	g_s	C_i
Treatment		μmol·m?2·s?1	(mol·m?2·s?1)	μmol·mol?1
NO?CA	CK	7.03 ± 1.20^b	0.12 ± 0.03^bc	291.5 ± 7.93^ab
	PYR	8.66 ± 0.97^ab	0.14 ± 0.01^abc	280.1 ± 15.83^abc
	Cd	7.92 ± 1.65^ab	0.12 ± 0.01^c	272.8 ± 15.51^bc
	Cd?PYR	8.10 ± 0.91^ab	0.11 ± 0.12^c	262.4 ± 9.94^c
CA	CK	8.94 ± 1.15^ab	0.16 ± 0.02^ab	290.2 ± 12.4^ab
	PYR	9.91 ± 2.12^a	0.17 ± 0.05^a	285.3 ± 16.4^ab
	Cd	8.78 ± 1.97^ab	0.15 ± 0.02^ab	291.7 ± 22.1^ab
	Cd?PYR	8.94 ± 1.79^ab	0.17 ± 0.03^a	298.9 ± 6.00^a