While lignin geochemistry has been extensively investigated in the Amazon River, little is known about lignin distribution and dynamics within deep, stratified river channels or its transformations within soils prior to delivery to rivers. We characterized lignin phenols in soils, river particulate organic matter (POM), and dissolved organic matter (DOM) across a 4 km elevation gradient in the Madre de Dios River system, Peru, as well as in marine sediments to investigate the source-to-sink evolution of lignin. In soils, we found more oxidized lignin in organic horizons relative to mineral horizons. The oxidized lignin signature was maintained during transfer into rivers, and lignin was a relatively constant fraction of bulk organic carbon ...
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detai...
Characterizing the origins and compositions of the terrestrial OC is critical for understanding the ...
[1] Mountain rivers play a key role in the delivery of particulate organic carbon (POC) to large riv...
While lignin geochemistry has been extensively investigated in the Amazon River, little is known abo...
The Amazon River transports large amounts of terrestrial organic carbon (OCterr/ from the Andean and...
Bulk organic parameters and stable and radiocarbon isotope compositions of organic carbon (δ13COC an...
Characterizing the origins and compositions of the terrestrial OC is critical for understanding the ...
The Amazon River transports large amounts of terrestrial organic carbon (OCterr) from the Andean and...
We analyzed the molecular composition of dissolved organic matter (DOM) in the lower Amazon River (c...
In order to trace the transport of soil organic carbon (OC) in the lower Amazon basin, we investigat...
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detai...
We investigate the implications of upstream processes and hydrological seasonality on the transfer o...
International audienceIn order to reveal particulate organic carbon (POC) source and mode of transpo...
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detai...
In order to reveal particulate organic carbon (POC) source and mode of transport in the largest rive...
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detai...
Characterizing the origins and compositions of the terrestrial OC is critical for understanding the ...
[1] Mountain rivers play a key role in the delivery of particulate organic carbon (POC) to large riv...
While lignin geochemistry has been extensively investigated in the Amazon River, little is known abo...
The Amazon River transports large amounts of terrestrial organic carbon (OCterr/ from the Andean and...
Bulk organic parameters and stable and radiocarbon isotope compositions of organic carbon (δ13COC an...
Characterizing the origins and compositions of the terrestrial OC is critical for understanding the ...
The Amazon River transports large amounts of terrestrial organic carbon (OCterr) from the Andean and...
We analyzed the molecular composition of dissolved organic matter (DOM) in the lower Amazon River (c...
In order to trace the transport of soil organic carbon (OC) in the lower Amazon basin, we investigat...
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detai...
We investigate the implications of upstream processes and hydrological seasonality on the transfer o...
International audienceIn order to reveal particulate organic carbon (POC) source and mode of transpo...
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detai...
In order to reveal particulate organic carbon (POC) source and mode of transport in the largest rive...
Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detai...
Characterizing the origins and compositions of the terrestrial OC is critical for understanding the ...
[1] Mountain rivers play a key role in the delivery of particulate organic carbon (POC) to large riv...