Effects of land use on soil CO2 flux in the Paramo de Guerrero, Colombia

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dc.creatorDiego Peña-Quemba
dc.creatorYolanda Rubiano-Sanabria
dc.creatorDiego Riveros-Iregui
dc.date2016
dc.date.accessioned2026-07-07T02:43:43Z
dc.descriptionThe Andean paramo is an important global carbon sink and has a fundamental ecological function of capture, regulation and supply of water resources. The soil CO2 eff lux is a natural process through which the carbon is released into the atmo-sphere by molecular diffusion. The aim of this study was to establish the effect of different land use and soil managements practices over CO2 eff lux in the Paramo de Guerrero, using the soil respiration chamber technique. We evaluated five differ-ent land covers present in the Paramo de Guerrero (paramo vegetation, pasture, two tillage cover and potato crop). Our results show that soil respiration was lower in the paramo (0.42 g CO2 m-2 h-1) than in the others land uses, probably due to the higher moisture content (57.1% on average). The tillage practices showed a primary physical effect, continued by the increase of the velocity of biological and chemical processes drived by soil microorganisms, such as microbial respiration and organic matter mineralization. This study demostrates that moisture and soil temperature were not the main drivers of CO2 f lux in the conditions of the Paramo de Guerrero, but the agricultural management and the land use affect differentially the accumulation and release dynamics of soil organic carbon to the atmosphere.
dc.formatapplication/pdf
dc.identifier0120-9965
dc.identifierhttps://www.redalyc.org/articulo.oa?id=180350123008
dc.identifierhttps://www.redalyc.org/journal/1803/180350123008/
dc.identifierhttps://www.redalyc.org/journal/1803/180350123008/html/
dc.identifierhttps://www.redalyc.org/journal/1803/180350123008/180350123008.epub
dc.identifierhttps://www.redalyc.org/journal/1803/180350123008/movil
dc.identifier.urihttp://hdl.handle.net/123456789/422035
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1803
dc.rightsAgronomía Colombiana
dc.sourceAgronomía Colombiana (Colombia) Num.3 Vol.34
dc.subjectAgrociencias
dc.titleEffects of land use on soil CO2 flux in the Paramo de Guerrero, Colombia
dc.typeartículo científico

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Agronomía Colombiana - Universidad Nacional de Colombia