降水量变化对藏北高寒草地养分限制的影响
宗宁1, 石培礼1,2,*(
), 赵广帅3, 郑莉莉1,2, 牛犇1, 周天财1,2, 侯阁1,2
), 赵广帅3, 郑莉莉1,2, 牛犇1, 周天财1,2, 侯阁1,2
Variations of nitrogen and phosphorus limitation along the environmental gradient in alpine grasslands on the Northern Xizang Plateau
ZONG Ning1, SHI Pei-Li1,2,*(), ZHAO Guang-Shuai3, ZHENG Li-Li1,2, NIU Ben1, ZHOU Tian-Cai1,2, HOU Ge1,2
), ZHAO Guang-Shuai3, ZHENG Li-Li1,2, NIU Ben1, ZHOU Tian-Cai1,2, HOU Ge1,2
图3. 氮(N)、磷(P)添加对高寒草地不同植物功能群地上生产力的影响。图中不同大写字母代表群落地上生产力在不同施肥处理之间差异显著(p < 0.05)。F和p代表不同功能群在施肥处理之间的差异性。A-C, 高寒草甸。D-F, 高寒草甸草原。G-I, 高寒草原。J-L, 高寒荒漠草原。
Fig. 3. Effects of nitrogen (N) and phosphorus (P) addition on the aboveground biomass of different plant functional groups of alpine grasslands. Different uppercase letters in the same year represent significant differences among fertilization treatments (p < 0.05). F and P represent the differences in different functional groups among fertilization treatments. A-C, Alpine meadow. D-F, Alpine meadow-steppe. G-I, Alpine steppe. J-L, Alpine desert-steppe.
