气候变化领域集成服务门户(CCPortal): The altitudinal distribution characteristics of functional traits reflect the resource allocation strategy of Abies georgei var. smithii in southeast Tibet

CCPortal

DOI	10.3389/fevo.2023.1055195
	The altitudinal distribution characteristics of functional traits reflect the resource allocation strategy of Abies georgei var. smithii in southeast Tibet
	Wang, Chao; Duan, Fei; Zhou, Chenni; Lu, Jie
发表日期	2023
ISSN	2296-701X
卷号	11
英文摘要	To explore the adaptation strategies of the aboveground and underground functional traits of alpine plants along an altitudinal gradient, a typical stand of primitive dark coniferous forests (Abies georgei var. smithii.) in southeastern Tibet was taken as the research object in the present study. PCA and correlation analyses were carried out for different organ functional traits (19 key indicators in total), then RDA analysis was done in conjunction with 12 environmental factors. The variation characteristics of the functional traits of leaves, current-year twigs, trunks and fine roots in 6 continuous altitude gradients and the relationships between functional traits and environmental factors were explored. The results showed that soil organic carbon (SOC) may exert a positive effect on the construction of plant defense tissue via changes in functional traits, altitude (Alt) represents the primary influencing factor of wood density (WD) variation, particulate organic carbon (POC) content mainly affected fine root dry matter (RDWC) content and specific root length (SRL), and total potassium (TK) content was the main factor that affected fine root tissue density (RTD). Leaves, current-year twigs, and fine roots exhibited high production or nutrient acquisition capacity at an altitude of 4,000m and showed strong defense and relatively stable water and nutrient transport capacity. In conclusion, the ecological strategy of Abies georgei var. smithii. in Sejila Mountain was more conservative, and the optimal survival area of Abies georgei var. smithii. was located at 4, 000m on the shady slope of Sejila Mountain. It is of paramount significance for exploring the essence of terrestrial ecosystems and their functional processes in extremely high-altitude environments.
关键词	plant functional traits current-year twigs fine roots Abies georgei var smithii altitude Tibet
英文关键词	WOOD SPECIFIC-GRAVITY; FINE-ROOT TRAITS; LEAF SIZE; TRADE-OFF; STANDARDIZED MEASUREMENT; PINUS-TABULIFORMIS; TWIG SIZE; SOIL; GRADIENT; DENSITY
WOS研究方向	Ecology
WOS记录号	WOS:000948606300001
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282598
作者单位	Tibet Agriculture & Animal Husbandry University; Tibet Agriculture & Animal Husbandry University
推荐引用方式 GB/T 7714	Wang, Chao,Duan, Fei,Zhou, Chenni,et al. The altitudinal distribution characteristics of functional traits reflect the resource allocation strategy of Abies georgei var. smithii in southeast Tibet[J],2023,11.
APA	Wang, Chao,Duan, Fei,Zhou, Chenni,&Lu, Jie.(2023).The altitudinal distribution characteristics of functional traits reflect the resource allocation strategy of Abies georgei var. smithii in southeast Tibet.FRONTIERS IN ECOLOGY AND EVOLUTION,11.
MLA	Wang, Chao,et al."The altitudinal distribution characteristics of functional traits reflect the resource allocation strategy of Abies georgei var. smithii in southeast Tibet".FRONTIERS IN ECOLOGY AND EVOLUTION 11(2023).