Organic carbon export in the form of wood during an extreme tropical storm, Upper Rio Chagres, Panama

Auteur(s) et Affiliation(s)



Description :
Widespread, intense rainfall over the Upper Rio Chagres watershed in central Panama during December 2010 triggered numerous landslides that introduced large numbers of trees to the river network. The AA. used low-elevation video photography to tally the number of wood pieces stored along the lake margin and within the channel, and the number of landslides reaching the mainstem. They used these tallies with ground-verified estimates of average wood piece size and landslide surface area, and assumptions about wood density, carbon content, and aboveground biomass, to develop a first-order estimate of carbon export in the form of wood from the Upper Chagres following the 2010 storms. The findings suggest that duration of flood flow above a threshold for mobilizing wood within the channel network exerts a more important control on wood export from the Upper Chagres than magnitude of flood peak.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2013, vol. 38, n°. 12, p. 1407-1416, nombre de pages : 10, Références bibliographiques : 2 p.

Date :
2013

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley