模拟酸沉降对南亚热带季风常绿阔叶林土壤微生物群落结构的长期影响

胡苑柳, 陈国茵, 陈静文, 孙连伟, 李健陵, 窦宁, 张德强, 邓琦

Effects of long-term simulated acid rain on soil microbial community structure in a monsoon evergreen broad-leaved forest in southern China

HU Yuan-Liu, CHEN Guo-Yin, CHEN Jing-Wen, SUN Lian-Wei, LI Jian-Ling, DOU Ning, ZHANG De-Qiang, DENG Qi

表2 模拟酸沉降对南亚热带季风常绿阔叶林土壤理化性质的影响

Table 2 Soil properties in the four simulated acid rain treatments in a monsoon evergreen broad-leaved forest in southern China

土层 Soil layer (cm)	处理 Treatment	土壤pH Soil pH	含水量 SWC (%)	有机碳含量 SOC content (g·kg^-1)	氨态氮含量 NH₄⁺-N content (mg·kg^-1)	硝态氮含量 NO₃^--N content (mg·kg^-1)	总氮含量 TN content (g·kg^-1)	有效磷含量 AP content (mg·kg^-1)	总磷含量 TP content (g·kg^-1)	总氮:总磷 TC:TN
0-10	CK	4.18^a (0.03)	43.76^a (1.20)	35.25 (1.22)	1.36 (0.16)	15.85^a (1.02)	2.37 (0.01)	1.68^a (0.12)	0.24^a (0.01)	14.93^bc (0.25)
	T1	4.05^b (0.03)	41.68^a (1.14)	37.71 (2.60)	1.16 (0.25)	10.94^ab (0.90)	2.66 (0.13)	1.47^ab (0.15)	0.19^b (0.01)	14.11^c (0.40)
	T2	3.89^c (0.06)	35.42^b (1.15)	40.43 (3.90)	1.68 (0.24)	9.82^b (1.12)	2.50 (0.19)	0.95^b (0.16)	0.19^b (0.01)	16.00^ab (0.42)
	T3	3.90^c (0.03)	37.34^b (2.17)	41.26 (2.32)	1.94 (0.30)	12.55^ab (1.94)	2.44 (0.14)	1.20^ab (0.07)	0.16^c (0.01)	16.94^a (0.23)
10-20	CK	4.22^a (0.01)	36.31^a (0.85)	25.36 (0.93)	1.18 (0.14)	8.85 (0.61)	1.68 (0.06)	0.69 (0.05)	0.19^a (0.01)	15.13^b (0.31)
	T1	4.14^a (0.03)	36.19^a (0.89)	24.60 (1.98)	0.75 (0.09)	6.57 (0.66)	1.76 (0.11)	0.79 (0.12)	0.15^bc (0.01)	13.95^b (0.36)
	T2	3.98^b (0.04)	31.06^b (0.68)	26.64 (2.13)	1.58 (0.41)	6.87 (0.77)	1.83 (0.14)	0.47 (0.11)	0.16^b (0.01)	14.57^b (0.44)
	T3	4.03^b (0.02)	32.26^b (1.25)	28.66 (1.67)	1.56 (0.30)	7.31 (0.87)	1.74 (0.11)	0.72 (0.08)	0.13^c (0.01)	16.60^a (0.47)