Näytä suppeat kuvailutiedot

dc.contributor.authorRasa, Kimmo
dc.contributor.authorTähtikarhu, Mika
dc.contributor.authorMiettinen, Arttu
dc.contributor.authorKähärä, Topi
dc.contributor.authorUusitalo, Risto
dc.contributor.authorMikkola, Jarmo
dc.contributor.authorHyväluoma, Jari
dc.date.accessioned2024-05-27T08:43:23Z
dc.date.available2024-05-27T08:43:23Z
dc.date.issued2024
dc.identifier.citationRasa, K., Tähtikarhu, M., Miettinen, A., Kähärä, T., Uusitalo, R., Mikkola, J., & Hyväluoma, J. (2024). A large one-time addition of organic soil amendments increased soil macroporosity but did not affect intra-aggregate porosity of a clay soil. <i>Soil and Tillage Research</i>, <i>242</i>, Article 106139. <a href="https://doi.org/10.1016/j.still.2024.106139" target="_blank">https://doi.org/10.1016/j.still.2024.106139</a>
dc.identifier.otherCONVID_215881513
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/95212
dc.description.abstractSoil structure is a dynamic property which controls a wide range of soil functions and is closely linked with soil carbon content. The carbon contents of agricultural soils are subject to several ongoing trends, including declining carbon stocks and attempts to increase the soil carbon reserves. In this study, we aimed to quantify how organic soil amendments, which have been shown to reduce long-term nutrient loads from agricultural fields, can impact soil structure. The structural impacts of a large one-time addition (8 tons carbon per hectare, three different soil amendments) of pulp and paper mill side stream sludges to a boreal clay soil were explored quantitatively in aggregate (X-ray microtomography, sample size 1–2 mm), core (water retention measurements, sample size 195 cm3) and column (macropores ≥80 µm, sample size ∼ 20 dm3) scales. Our results showed no micrometer-scale structural changes within soil aggregates despite the large number (25 aggregate per treatment) of imaged samples. However, the organic soil amendments had a statistically significant impact on the macroporosity. The macroporosity was on average 20–27 % higher compared to the control samples and visible even five years after the application of the amendments. Such change in soil structure improves soil aeration and fast infiltration of water during wet periods and extreme rain events and may thereby also reduce erosion risk by decreasing surface runoff. The increased microporosity was visible only in the column scale. No statistically significant differences were observed in the fraction of large pores in core scale water retention measurements. Probing the soil structural changes in macropore regime by X-ray tomography or developing sub-micron scale analysis methods are recommended approaches to improve our understanding of clay soil’s structural changes induced by organic soil amendments.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofseriesSoil and Tillage Research
dc.rightsCC BY 4.0
dc.subject.othersoil structure
dc.subject.otherclay soil
dc.subject.otherorganic soil amendments
dc.subject.otherX-ray tomography
dc.subject.otheraggregate
dc.subject.otherhelium ion microscope
dc.titleA large one-time addition of organic soil amendments increased soil macroporosity but did not affect intra-aggregate porosity of a clay soil
dc.typeresearch article
dc.identifier.urnURN:NBN:fi:jyu-202405273976
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn0167-1987
dc.relation.volume242
dc.type.versionpublishedVersion
dc.rights.copyright© 2024 The Author(s). Published by Elsevier B.V.
dc.rights.accesslevelopenAccessfi
dc.type.publicationarticle
dc.relation.grantnumberVN/28467/2020, VN/28467/2020-MMM-2
dc.relation.grantnumber42550 (14-8846-20)
dc.subject.ysohuokoisuus
dc.subject.ysoorgaaninen aines
dc.subject.ysosavimaat
dc.subject.ysorakenne (ominaisuudet)
dc.subject.ysosavi
dc.subject.ysomaaperäfysiikka
dc.subject.ysohiilensidonta
dc.subject.ysotomografia
dc.subject.ysomaaperä
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p13541
jyx.subject.urihttp://www.yso.fi/onto/yso/p14873
jyx.subject.urihttp://www.yso.fi/onto/yso/p38992
jyx.subject.urihttp://www.yso.fi/onto/yso/p7302
jyx.subject.urihttp://www.yso.fi/onto/yso/p2465
jyx.subject.urihttp://www.yso.fi/onto/yso/p899
jyx.subject.urihttp://www.yso.fi/onto/yso/p21940
jyx.subject.urihttp://www.yso.fi/onto/yso/p17798
jyx.subject.urihttp://www.yso.fi/onto/yso/p1675
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.still.2024.106139
dc.relation.funderMinistry of Agriculture and Forestryen
dc.relation.funderMaa- ja vesitekniikan tuki ryen
dc.relation.funderMaa- ja metsätalousministeriöfi
dc.relation.funderMaa- ja vesitekniikan tuki ryfi
jyx.fundingprogramOthersen
jyx.fundingprogramOthersen
jyx.fundingprogramMuutfi
jyx.fundingprogramMuutfi
jyx.fundinginformationThis study was funded by Maa- ja vesitekniikan tuki ry, Soil Improvement Fibers- and HiiletIn-projects funded by Ministry of Agriculture and Forestry of Finland (Ravinteiden kierrätyksen kokeiluohjelma and Catch the Carbon research and innovation programme), Ministry of the Environment (Water Protection Programme), and Tandem Industry Academia Professor funding by The Finnish Research Impact Foundation.
dc.type.okmA1


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