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Nutrient Balance as a Tool for Maintaining Yield and Mitigating Environmental Impacts of Acacia Plantation in Drained Tropical Peatland—Description of Plantation Simulator

dc.contributor.authorLaurén, Ari
dc.contributor.authorPalviainen, Marjo
dc.contributor.authorPage, Susan
dc.contributor.authorEvans, Chris
dc.contributor.authorUrzainki, Iñaki
dc.contributor.authorHökkä, Hannu
dc.contributor.departmentid4100110310
dc.contributor.departmentid4100311110
dc.contributor.organizationLuonnonvarakeskus
dc.date.accessioned2021-05-24T08:58:43Z
dc.date.accessioned2025-05-27T20:25:51Z
dc.date.available2021-05-24T08:58:43Z
dc.date.issued2021
dc.description.abstractResponsible management of Acacia plantations requires an improved understanding of trade-offs between maintaining stand production whilst reducing environmental impacts. Intensive drainage and the resulting low water tables (WT) increase carbon emissions, peat subsidence, fire risk and nutrient export to water courses, whilst increasing nutrient availability for plant uptake from peat mineralization. In the plantations, hydrology, stand growth, carbon and nutrient balance, and peat subsidence are connected forming a complex dynamic system, which can be thoroughly understood by dynamic process models. We developed the Plantation Simulator to describe the effect of drainage, silviculture, fertilization, and weed control on the above-mentioned processes and to find production schemes that are environmentally and economically viable. The model successfully predicted measured peat subsidence, which was used as a proxy for stand total mass balance. Computed nutrient balances indicated that the main growth-limiting factor was phosphorus (P) supply, and the P balance was affected by site index, mortality rate and WT. In a scenario assessment, where WT was raised from −0.80 m to −0.40 m the subsidence rate decreased from 4.4 to 3.3 cm yr−1, and carbon loss from 17 to 9 Mg ha−1 yr−1. P balance shifted from marginally positive to negative suggesting that additional P fertilization is needed to maintain stand productivity as a trade-off for reducing C emissions.
dc.description.vuosik2021
dc.format.bitstreamtrue
dc.format.pagerange29 p.
dc.identifier.olddbid490077
dc.identifier.oldhandle10024/547532
dc.identifier.urihttps://jukuri.luke.fi/handle/11111/10048
dc.identifier.urnURN:NBN:fi-fe2021052431338
dc.language.isoen
dc.okm.corporatecopublicationei
dc.okm.discipline4112
dc.okm.internationalcopublicationon
dc.okm.openaccess1 = Open access -julkaisukanavassa ilmestynyt julkaisu
dc.okm.selfarchivedon
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.relation.articlenumber312
dc.relation.doi10.3390/f12030312
dc.relation.ispartofseriesForests
dc.relation.issn1999-4907
dc.relation.numberinseries3
dc.relation.volume12
dc.rightsCC BY 4.0
dc.source.identifierhttps://jukuri.luke.fi/handle/10024/547532
dc.subject.ysocarbon balance
dc.subject.ysoforest drainage
dc.subject.ysofertilisation
dc.subject.ysogrowth
dc.subject.ysophosphorus
dc.subject.ysopeatland forests
dc.subject.ysocarbon
dc.subject.ysodrainage
dc.subject.ysoecosystem modelling
dc.subject.ysopeat subsidence
dc.subject.ysowater table
dc.tehOHFO-Alku-4
dc.tehOHFO-Maa-ilma-2
dc.tehOHFO-Maa-ilma-4
dc.titleNutrient Balance as a Tool for Maintaining Yield and Mitigating Environmental Impacts of Acacia Plantation in Drained Tropical Peatland—Description of Plantation Simulator
dc.typepublication
dc.type.okmfi=A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä|sv=A1 Originalartikel i en vetenskaplig tidskrift|en=A1 Journal article (refereed), original research|
dc.type.versionfi=Publisher's version|sv=Publisher's version|en=Publisher's version|

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