Fiche du document
2007
- handle: 10670/1.ywh353
- 0378-1844
Ce document est lié à :
http://www.redalyc.org/revista.oa
Interciencia
Mots-clés
Multidisciplinarias (Ciencias Sociales) Global Methane Budget Methane from Vegetation Methane in Tropical EcosystemsSujets proches
Vegetable kingdom Plantae Plant kingdom Vegetation Wildlife Flora Methyl hydrideCiter ce document
Eugenio Sanhueza, « Methane soil-vegetation-atmosphere fluxes in tropical ecosystems », Interciencia, ID : 10670/1.ywh353
Métriques
Partage / Export
Résumé
"Recently, a surprising discovery indicated that, by an unknown process, vegetation emits methane to the atmosphere. This find-ing could have serious implications in atmospheric chemistry, climate, and mitigation of global change. In order to evaluate the magnitude of the tropical vegetation source, a re-evaluation of results obtained at various Venezuelan ecosystems is made. CH4 fluxes from the soil-grass system in savanna ecosystems in-dicate that grasses produce CH4 at ~10ng·m-2·s-1. Furthermore, CH4 accumulation within the nocturnal mixing layer at the Guri site, which is affected by savanna and forest emissions, was used to make a rough upper limit estimation of