天津沼泽湿地芦苇叶片的碳稳定同位素比值分布特征及其环境影响因素

陈清, 王义东, 郭长城, 王中良

Foliar stable carbon isotope ratios of Phragmites australis and the relevant environmental factors in marsh wetlands in Tianjin

CHEN Qing,WANG Yi-Dong,GUO Chang-Cheng,WANG Zhong-Liang

表2 天津3块沼泽湿地芦苇叶片碳稳定同位素比值(δ¹³C)值、碳氮含量和碳氮比(平均值±标准误差)

Table 2 Leaf stable carbon isotope ratios (δ¹³C), leaf C, N content and C and N ratio of Phragmites australis in three marsh wetlands in Tianjin (mean ± SE)

时间 Time	样地 Site	δ¹³C (‰)	碳氮比 C and N ratio	氮含量 N content (%)	碳含量 C content (%)
5月	七里海 Qilihai	-25.26 ± 0.12^b	11.71 ± 0.16^b	3.99 ± 0.05^a	46.73 ± 0.22^a
May	北大港 Beidagang	-26.03 ± 0.13^c	13.44 ± 0.40^a	3.41 ± 0.12^b	45.61 ± 0.26^b
	大黄堡 Dahuangpu	-24.15 ± 0.22^a	11.64 ± 0.37^b	4.05 ± 0.13^a	46.94 ± 0.08^a
8月	七里海 Qilihai	-25.43 ± 0.12^a	23.90 ± 1.06^a	2.00 ± 0.09^b	47.42 ± 0.34^a
August	北大港 Beidagang	-26.17 ± 0.07^c	22.54 ± 0.36^a	2.06 ± 0.04^b	46.43 ± 0.12^b
	大黄堡 Dahuangpu	-25.79 ± 0.12^b	18.17 ± 0.41^b	2.59 ± 0.06^a	47.01 ± 0.18^ab