Mineral phosphorus drives glacier algal blooms on the Greenland Ice Sheet.
Nat Commun
; 12(1): 570, 2021 01 25.
Article
em En
| MEDLINE
| ID: mdl-33495440
ABSTRACT
Melting of the Greenland Ice Sheet is a leading cause of land-ice mass loss and cryosphere-attributed sea level rise. Blooms of pigmented glacier ice algae lower ice albedo and accelerate surface melting in the ice sheet's southwest sector. Although glacier ice algae cause up to 13% of the surface melting in this region, the controls on bloom development remain poorly understood. Here we show a direct link between mineral phosphorus in surface ice and glacier ice algae biomass through the quantification of solid and fluid phase phosphorus reservoirs in surface habitats across the southwest ablation zone of the ice sheet. We demonstrate that nutrients from mineral dust likely drive glacier ice algal growth, and thereby identify mineral dust as a secondary control on ice sheet melting.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Fósforo
/
Camada de Gelo
/
Eutrofização
/
Microalgas
/
Minerais
Tipo de estudo:
Prognostic_studies
País/Região como assunto:
America do norte
/
Europa
Idioma:
En
Revista:
Nat Commun
Assunto da revista:
BIOLOGIA
/
CIENCIA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Reino Unido