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Effects of wood ash, nitrogen, and biosolids fertilisation on the growth and soil properties of Scots pine and Norway spruce stands

dc.contributor.authorMäkinen, Harri
dc.contributor.authorIlvesniemi, Hannu
dc.contributor.authorLindroos, Antti-Jussi
dc.contributor.authorSmolander, Aino
dc.contributor.departmentid4100110310
dc.contributor.departmentid4100211110
dc.contributor.departmentid4100110510
dc.contributor.departmentid4100110510
dc.contributor.orcidhttps://orcid.org/0000-0002-1820-6264
dc.contributor.orcidhttps://orcid.org/0000-0003-3331-106X
dc.contributor.orcidhttps://orcid.org/0000-0002-0406-5069
dc.contributor.organizationLuonnonvarakeskus
dc.date.accessioned2024-12-18T08:18:55Z
dc.date.accessioned2025-05-28T14:10:47Z
dc.date.available2024-12-18T08:18:55Z
dc.date.issued2025
dc.description.abstractThe recycling of wood ash back to forests has the potential to restore nutrients that are removed during the harvesting of wood chips for bioenergy. Biosolids are nutrient-rich organic residual materials derived from biowaste and sewage sludge with potential use as fertiliser. The objective of this study was to assess the impact of wood ash fertilisation, with and without nitrogen (N) addition, as well as biosolids addition, on forest growth, and soil properties and processes. The material was collected from fertilisation experiments in southern Finland, two in Scots pine (Pinus sylvestris L.) stands and four in Norway spruce (Picea abies (L.) Karst.) stands on mineral soil, approximately 10 years after the treatments were applied. The treatments were as follows: a control with no fertilisation, two doses of wood ash (3000 kg ha−1, and 9000 kg ha−1), a nitrogen addition (180 kg ha−1), and treatments with N and ash additions. In addition, biosolids (4400 kg ha−1) were applied. The treatments had only a slight impact on growth in both pine and spruce stands. The most notable impact on the chemical properties of the humus layer was a reduction in acidity and an increase in base cation concentrations on the plots fertilised with ash. Conversely, the addition of N and/or wood ash did not result in a consistent impact on the C-to-N ratio, rates of carbon and net N mineralisation, or carbon and N amounts. The limited growth response to the N addition in any form is attributable to the minor alteration in N availability. Furthermore, the application of wood ash and biosolids did not result in any discernible adverse effects on soil properties.
dc.format.bitstreamtrue
dc.format.pagerange9 p.
dc.identifier.olddbid498276
dc.identifier.oldhandle10024/555704
dc.identifier.urihttps://jukuri.luke.fi/handle/11111/24749
dc.identifier.urlhttps://doi.org/10.1016/j.foreco.2024.122467
dc.identifier.urnURN:NBN:fi-fe20241218104111
dc.language.isoen
dc.okm.avoinsaatavuuskytkin1 = Avoimesti saatavilla
dc.okm.corporatecopublicationei
dc.okm.discipline4112
dc.okm.internationalcopublicationei
dc.okm.julkaisukanavaoa2 = Osittain avoimessa julkaisukanavassa ilmestynyt julkaisu
dc.okm.selfarchivedon
dc.publisherElsevier
dc.relation.articlenumber122467
dc.relation.doi10.1016/j.foreco.2024.122467
dc.relation.ispartofseriesForest ecology and management
dc.relation.issn0378-1127
dc.relation.issn1872-7042
dc.relation.volume578
dc.rightsCC BY 4.0
dc.source.identifierhttps://jukuri.luke.fi/handle/10024/555704
dc.subjectash
dc.subjectbiosolids
dc.subjectfertilisation
dc.subjectforest growth
dc.subjectnitrogen
dc.subjectsoil properties
dc.teh41007-00210400
dc.teh41007-00246901
dc.teh41007-00245500
dc.titleEffects of wood ash, nitrogen, and biosolids fertilisation on the growth and soil properties of Scots pine and Norway spruce stands
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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