Experimental warming altered plant functional traits and their coordination in a permafrost ecosystem.
climate warming
functional diversity
permafrost ecosystem
plant functional trait
trait network
Journal
The New phytologist
ISSN: 1469-8137
Titre abrégé: New Phytol
Pays: England
ID NLM: 9882884
Informations de publication
Date de publication:
Dec 2023
Dec 2023
Historique:
received:
13
02
2023
accepted:
13
06
2023
medline:
3
11
2023
pubmed:
12
7
2023
entrez:
12
7
2023
Statut:
ppublish
Résumé
Knowledge about changes in plant functional traits is valuable for the mechanistic understanding of warming effects on ecosystem functions. However, observations have tended to focus on aboveground plant traits, and there is little information about changes in belowground plant traits or the coordination of above- and belowground traits under climate warming, particularly in permafrost ecosystems. Based on a 7-yr field warming experiment, we measured 26 above- and belowground plant traits of four dominant species, and explored community functional composition and trait networks in response to experimental warming in a permafrost ecosystem on the Tibetan Plateau. Experimental warming shifted community-level functional traits toward more acquisitive values, with earlier green-up, greater plant height, larger leaves, higher photosynthetic resource-use efficiency, thinner roots, and greater specific root length and root nutrient concentrations. However, warming had a negligible effect in terms of functional diversity. In addition, warming shifted hub traits which have the highest centrality in the network from specific root area to leaf area. These results demonstrate that above- and belowground traits exhibit consistent adaptive strategies, with more acquisitive traits in warmer environments. Such changes could provide an adaptive advantage for plants in response to environmental change.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1802-1816Subventions
Organisme : National Key Research and Development Program of China
ID : 2022YFF0801902
Organisme : National Natural Science Foundation of China
ID : 31988102
Organisme : National Natural Science Foundation of China
ID : 31825006
Organisme : National Natural Science Foundation of China
ID : 32101341
Informations de copyright
© 2023 The Authors. New Phytologist © 2023 New Phytologist Foundation.
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