青藏高原高寒草甸植物群落生物量对氮、磷添加的响应

杨晓霞, 任飞, 周华坤, 贺金生

Responses of plant community biomass to nitrogen and phosphorus additions in an alpine meadow on the Qinghai-Xizang Plateau

YANG Xiao-Xia, REN Fei, ZHOU Hua-Kun, HE Jin-Sheng

表3 不同处理下的地上(AGB)、地下(BGB)和总生物量(TB)碳库(平均值±标准误差)

Table 3 Aboveground biomass (AGB), belowground biomass (BGB) and total biomass (TB) carbon stock under different treatments (mean ± SE)

	对照 CK	氮添加 N addition	磷添加 P addition	氮磷添加 N, P addition
AGB (g C·m^-2)	146.5 ± 14.0^a	204.8 ± 7.8^b	250.9 ± 12.7^c	281.5 ± 7.9^d
BGB (g C·m^-2)	558.0 ± 68.4^a	510.5 ± 36.8^a	709.1 ± 49.5^b	598.8 ± 101.3^a
TB (g C·m^-2)	704.6 ± 64.3^a	715.3 ± 40.9^a	960.0 ± 41.8^b	880.3 ± 95.8^ab