Show simple item record

dc.contributor.authorKumpu, Atte
dc.contributor.authorMäkelä, Annikki
dc.contributor.authorPumpanen, Jukka
dc.contributor.authorSaarinen, Jussi
dc.contributor.authorBerninger, Frank
dc.date.accessioned2019-01-14T07:56:57Z
dc.date.available2019-01-14T07:56:57Z
dc.date.issued2018
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/7279
dc.description.abstractEven-aged forests usually act as carbon sinks during most of their rotation. However, after clearcut they become sources of carbon for a period of several years. Applying uneven-aged forest management with selective cuttings will maintain tree cover and reduce the environmental impact on forest floor. The aim of this study was to compare the soil CO2 efflux between uneven-aged and even-aged Norway spruce stands with similar site properties, to investigate the effect of management practices on soil CO2 efflux and its possible correlation with soil environmental and chemical properties. We measured soil CO2 efflux in even- and uneven-aged Norway spruce stands (Picea abies [L.] Karst) in southern Finland during the summer of 2013 using closed chamber method on fixed measuring points. The study included two uneven-aged stands and two even-aged stands (a clearcut site and a mature even-aged stand). Soil moisture and soil temperature were measured at the same time as soil CO2 efflux. Soil cores were collected from the topsoil of each study plot to determine soil carbon and nitrogen concentrations. Mean soil CO2 efflux through the summer was highest in the clearcut plot (0.367 mg m-2 s-1) followed by the uneven-aged stands (0.298 and 0.257 mg m-2 s-1, respectively) and the smallest fluxes were measured in the mature even-aged stand (0.224 mg m-2 s-1). There was no statistically significant difference in soil CO2 efflux between the even- and uneven-aged stands of the same site fertility. Even- and uneven-aged stands did not differ significantly in soil moisture or soil temperature. Soil CO2 efflux increased steadily with soil temperature, whereas increasing soil moisture considerably increased soil CO2 efflux at lower moisture levels but only moderately at higher soil moisture levels. Soil carbon and nitrogen concentration did not differ between the study plots of the same fertility. Uneven-aged structure forestry did not prevent the increase in soil CO2 efflux after cuttings. However, the large variation in soil CO2 efflux rates within the uneven-aged stands suggests that the stand level CO2 efflux can be controlled with the intensity of the cutting.
dc.language.isoenglanti
dc.publisherItalian Society of Sivilculture and Forest Ecology (SISEF)
dc.relation.ispartofseriesIforest-biogeosciences and forestry
dc.relation.urihttp://dx.doi.org/10.3832/ifor2658-011
dc.rightsCC BY-NC http://creativecommons.org/licenses/by-nc/4.0/
dc.subjectuneven-aged forest structure
dc.subjecteven-aged forest structure
dc.subjectsoil CO2 efflux
dc.subjectNorway spruce
dc.titleSoil CO2 efflux in uneven-aged and even-aged Norway spruce stands in southern Finland
dc.description.versionpublished version
dc.contributor.departmentYmpäristö- ja biotieteiden laitos / Toiminta
uef.solecris.id58802264en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© Authors
dc.relation.doi10.3832/ifor2658-011
dc.description.reviewstatuspeerReviewed
dc.format.pagerange705-712
dc.publisher.countryItalia
dc.relation.volume11
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessOpen access -julkaisukanavassa ilmestynyt julkaisu


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record