Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorKelly, Thomas J.-
dc.contributor.authorLawson, Ian T.-
dc.contributor.authorRoucoux, Katherine H.-
dc.contributor.authorBaker, Timothy R.-
dc.contributor.authorHonorio Coronado, Eurídice-
dc.identifier.citationQuaternary Science Reviews, 230: 106168es_ES
dc.description.abstractAmazonian peatlands sequester and store large amounts of carbon below ground and contribute to regional biodiversity. They also present an outstanding opportunity for palaeoecological research. This study uses multiple peat cores to improve our understanding of the long-term development of a peatland (Quistococha) in Peruvian Amazonia, by providing a reconstruction of the spatial patterns of vegetation change and peat accumulation over time across the site. Peat cores taken along transects totalling c. 5 km were used to establish the peat thickness and visible stratigraphy. Of 29 new peat cores, four were selected for pollen analysis, supported by 15 radiocarbon dates. These complement two existing published pollen records from the site, from a peat core and a lake sediment core. Our study shows that peat initiation occurred across the site in the form of primary mire formation between 2400 and 1900 cal yr BP. Following peat initiation, five broadly similar phases of vegetation development are recorded in all the pollen sequences: Amazon floodplain, herbaceous sedge fen, mixed angiosperm flooded forest, mixed palm swamp, Mauritia-dominated palm swamp. In detail, there are differences in the pattern and timing of vegetation change between the sequences. Much of this spatial variation is likely to be the result of the underlying substrate topography. In addition, we find that the difference in vegetation composition between core sites was greater during the early stages of peat accumulation at Quistococha than it is today. Such spatial and temporal variability has significant implications for computer modelling of carbon accumulation in tropical peatlands and, consequently, our understanding of their role in the global carbon cycle. Our findings highlight key challenges for numerical modelling on Holocene timescales, namely the difficulty in quantifying long-term variations in primary productivity, the variable influence of sediment input on carbon accumulation during the early stages of peatland formation, and the difficulty of modelling water tables in sites with variable underlying topography.es_ES
dc.description.sponsorshipRoyal Geographical Society, NERC (grant ref. NE/H011773/1)es_ES
dc.rights.uriCopyright © 2020 Elsevieres_ES
dc.sourceInstituto de Investigaciones de la Amazonía Peruanaes_ES
dc.sourceRepositorio Institucional - IIAPes_ES
dc.subjectSecuestro de carbonoes_ES
dc.subjectMauritia flexuosaes_ES
dc.subjectSuelo turbosoes_ES
dc.titlePatterns and drivers of development in a west Amazonian peatland during the late Holocenees_ES
dc.identifier.journalQuaternary Science Reviewses_ES
dc.description.peer-reviewRevisión por pares.es_ES
Appears in Collections:Artículos en revistas indexadas

Files in This Item:
File Description SizeFormat 
  Restricted Access
Texto Completo3,86 MBAdobe PDFThumbnail
View/Open Request a copy
Compartir :

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.