The competing controls of glaciers, precipitation, and vegetation on high-mountain fluvial sediment yields

Détails

Ressource 1Télécharger: Li_SciAdv24.pdf (22720.20 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY-NC 4.0
ID Serval
serval:BIB_2BC9B2BA4A6F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
The competing controls of glaciers, precipitation, and vegetation on high-mountain fluvial sediment yields
Périodique
Science Advances
Auteur⸱e⸱s
Li Dongfeng, Zhang Ting, Walling Desmond E., Lane Stuart, Bookhagen Bodo, Tian Shang, Overeem Irina, Syvitski Jaia, Kettner Albert J., Park Edward, Koppes Michèle, Schmitt Rafael J. P., Sun Weiling, Ni Jinren, Ehlers Todd A.
ISSN
2375-2548
Statut éditorial
Publié
Date de publication
29/11/2024
Peer-reviewed
Oui
Volume
10
Numéro
48
Langue
anglais
Résumé
Investigating erosion and river sediment yield in high-mountain areas is crucial for understanding landscape and biogeochemical responses to environmental change. We compile data on contemporary fluvial suspended sediment yield (SSY) and 12 environmental proxies from 151 rivers in High Mountain Asia surrounding the Tibetan Plateau. We demonstrate that glaciers exert a first-order control on fluvial SSYs, with high precipitation nonlinearly amplifying their role, especially in high–glacier cover basins. We find a bidirectional response to vegetation’s influence on SSY in the Eastern Tibetan Plateau and Tien Shan and identify that the two interacting factors of precipitation and vegetation cover explain 54% of the variability in SSY, reflecting the divergent roles of vegetation in promoting biogenic-weathering versus slope stabilization across bioclimatic zones. The competing interactions between glaciers, ecosystems, and climate in delivering suspended sediment have important implications for predicting carbon and nutrient exports and water quality in response to future climate change.
Pubmed
Open Access
Oui
Création de la notice
10/12/2024 11:31
Dernière modification de la notice
10/01/2025 7:04
Données d'usage