Stability response of alpine meadow communities to temperature and precipitation changes on the Northern Tibetan Plateau

NWIPB OpenIR

	Stability response of alpine meadow communities to temperature and precipitation changes on the Northern Tibetan Plateau
	Wang, CY; Wang, JB; Zhang, FW; Yang, YS; Luo, FL; Li, YN; Li, JX
	2022
发表期刊	ECOLOGY AND EVOLUTION
卷号	12 期号:2
摘要	Biomass temporal stability plays a key role in maintaining sustainable ecosystem functions and services of grasslands, and climate change has exerted a profound impact on plant biomass. However, it remains unclear how the community biomass stability in alpine meadows responds to changes in some climate factors (e.g., temperature and precipitation). Long-term field aboveground biomass monitoring was conducted in four alpine meadows (Haiyan [HY], Henan [HN], Gande [GD], and Qumalai [QML]) on the Qinghai-Tibet Plateau. We found that climate factors and ecological factors together affected the community biomass stability and only the stability of HY had a significant decrease over the study period. The community biomass stability at each site was positively correlated with both the stability of the dominant functional group and functional groups asynchrony. The effect of dominant functional groups on community stability decreased with the increase of the effect of functional groups asynchrony on community stability and there may be a 'trade-off' relationship between the effects of these two factors on community stability. Climatic factors directly or indirectly affect community biomass stability by influencing the stability of the dominant functional group or functional groups asynchrony. Air temperature and precipitation indirectly affected the community stability of HY and HN, but air temperature in the growing season and nongrowing season had direct negative and direct positive effects on the community stability of GD and QML, respectively. The underlying mechanisms varied between community composition and local climate conditions. Our findings highlighted the role of dominant functional group and functional groups asynchrony in maintaining community biomass stability in alpine meadows and we highlighted the importance of the environmental context when exploring the stability influence mechanism. Studies of community stability in alpine meadows along with different precipitation and temperature gradients are needed to improve our comprehensive understanding of the mechanisms controlling alpine meadow stability.
收录类别	SCIE
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/61300
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Wang, CY,Wang, JB,Zhang, FW,et al. Stability response of alpine meadow communities to temperature and precipitation changes on the Northern Tibetan Plateau[J]. ECOLOGY AND EVOLUTION,2022,12(2).
APA	Wang, CY.,Wang, JB.,Zhang, FW.,Yang, YS.,Luo, FL.,...&Li, JX.(2022).Stability response of alpine meadow communities to temperature and precipitation changes on the Northern Tibetan Plateau.ECOLOGY AND EVOLUTION,12(2).
MLA	Wang, CY,et al."Stability response of alpine meadow communities to temperature and precipitation changes on the Northern Tibetan Plateau".ECOLOGY AND EVOLUTION 12.2(2022).