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dc.contributor.authorKelly, Thomas
dc.contributor.authorLawson, Ian T.
dc.contributor.authorRoucoux, Katherine H.
dc.contributor.authorBaker, Timothy
dc.contributor.authorHonorio Coronado, Euridice
dc.date.accessioned2021-01-21T00:35:58Z
dc.date.available2021-01-21T00:35:58Z
dc.date.issued2020-02-15
dc.identifier.citationKelly , T , Lawson , I T , Roucoux , K H , Baker , T & Honorio Coronado , E 2020 , ' Patterns and drivers of development in a west Amazonian peatland during the late Holocene ' , Quaternary Science Reviews , vol. 230 , 106168 . https://doi.org/10.1016/j.quascirev.2020.106168en
dc.identifier.issn0277-3791
dc.identifier.otherPURE: 266071232
dc.identifier.otherPURE UUID: 0e5c5dbe-2d15-49c3-892e-1166dff115a6
dc.identifier.otherScopus: 85078049349
dc.identifier.otherORCID: /0000-0001-6757-7267/work/68281622
dc.identifier.otherORCID: /0000-0002-3547-2425/work/75996901
dc.identifier.otherWOS: 000514754000015
dc.identifier.urihttp://hdl.handle.net/10023/21295
dc.descriptionWe gratefully acknowledge financial support from the Royal Geographical Society, and NERC (grant ref. NE/H011773/1 and a quota PhD studentship), including two radiocarbon allocations (refs. 1612.0312, 1558.0411).en
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.
dc.language.isoeng
dc.relation.ispartofQuaternary Science Reviewsen
dc.rightsCopyright © 2020 Elsevier Ltd. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.quascirev.2020.106168en
dc.subjectPalaeoecologyen
dc.subjectMire formationen
dc.subjectPeruen
dc.subjectPalynologyen
dc.subjectVegetation successionen
dc.subjectG Geography (General)en
dc.subjectGE Environmental Sciencesen
dc.subjectDASen
dc.subject.lccG1en
dc.subject.lccGEen
dc.titlePatterns and drivers of development in a west Amazonian peatland during the late Holoceneen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.Bell-Edwards Geographic Data Instituteen
dc.contributor.institutionUniversity of St Andrews.School of Geography & Sustainable Developmenten
dc.identifier.doihttps://doi.org/10.1016/j.quascirev.2020.106168
dc.description.statusPeer revieweden
dc.date.embargoedUntil2021-01-21


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