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dc.contributor.authorWedeux, Béatriceen
dc.contributor.authorDalponte, Micheleen
dc.contributor.authorSchlund, Michaelen
dc.contributor.authorHagen, Stephenen
dc.contributor.authorCochrane, Marken
dc.contributor.authorGraham, Lauraen
dc.contributor.authorUsup, Aswinen
dc.contributor.authorThomas, Andrien
dc.contributor.authorCoomes, Daviden
dc.date.accessioned2020-11-18T13:27:38Z
dc.date.available2020-11-18T13:27:38Z
dc.date.issued2020-06-14en
dc.identifier.issn1354-1013
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/313049
dc.description.abstractTropical peat swamp forests (PSFs) are globally important carbon stores under threat. In Southeast Asia, 35% of peatlands had been drained and converted to plantations by 2010, and much of the remaining forest had been logged, contributing significantly to global carbon emissions. Yet, tropical forests have the capacity to regain biomass quickly and forests on drained peatlands may grow faster in response to soil aeration, so the net effect of humans on forest biomass remains poorly understood. In this study, two lidar surveys (made in 2011 and 2014) are compared to map forest biomass dynamics across 96 km2 of PSF in Kalimantan, Indonesia. The peatland is now legally protected for conservation, but large expanses were logged under concessions until 1998 and illegal logging continues in accessible portions. It was hypothesized that historically logged areas would be recovering biomass while recently logged areas would be losing biomass. We found that historically logged forests were recovering biomass near old canals and railways used by the concessions. Lidar detected substantial illegal logging activity-579 km of logging canals were located beneath the canopy. Some patches close to these canals have been logged in the 2011-2104 period (i.e. substantial biomass loss) but, on aggregate, these illegally logged regions were also recovering. Unexpectedly, rapid growth was also observed in intact forest that had not been logged and was over a kilometre from the nearest known canal, perhaps in response to greater aeration of surface peat. Comparing these results with flux measurements taken at other nearby sites, we find that carbon sequestration in above-ground biomass may have offset roughly half the carbon efflux from peat oxidation. This study demonstrates the power of repeat lidar survey to map fine-scale forest dynamics in remote areas, revealing previously unrecognized impacts of anthropogenic global change.
dc.languageengen
dc.publisherWiley
dc.rightsAll rights reserved
dc.rights.uri
dc.subjectabove-ground biomassen
dc.subjectairborne laser scanningen
dc.subjectbiomassen
dc.subjectcarbonen
dc.subjectforest dynamicsen
dc.subjecthydrologyen
dc.subjectillegal loggingen
dc.subjectpeat swamp foresten
dc.subjectAsia, Southeasternen
dc.subjectForestsen
dc.subjectHumansen
dc.subjectIndonesiaen
dc.subjectSoilen
dc.subjectSurveys and Questionnairesen
dc.subjectTropical Climateen
dc.subjectWetlandsen
dc.titleDynamics of a human-modified tropical peat swamp forest revealed by repeat lidar surveys.en
dc.typeArticle
prism.endingPage3964
prism.issueIdentifier7en
prism.publicationDate2020en
prism.publicationNameGlobal Change Biologyen
prism.startingPage3947
prism.volume26en
dc.identifier.doi10.17863/CAM.60149
dcterms.dateAccepted2020-02-25en
rioxxterms.versionofrecord10.1111/gcb.15108en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-06-14en
dc.contributor.orcidCoomes, David [0000-0002-8261-2582]
dc.identifier.eissn1365-2486
rioxxterms.typeJournal Article/Reviewen
cam.issuedOnline2020-04-08en
cam.orpheus.successThu Nov 19 14:51:58 GMT 2020 - Embargo updated*
rioxxterms.freetoread.startdate2021-07-31


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