Impacts of land cover and management change on top-of-canopy and below-canopy temperatures in Southeastern Kenya

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationUniversity of Helsinkien
cg.contributor.affiliationUniversity of Hong Kongen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationWuhan Universityen
cg.contributor.donorEuropean Unionen
cg.contributor.donorAcademy of Finlanden
cg.coverage.countryKenyaen
cg.coverage.iso3166-alpha2KEen
cg.coverage.regionAfricaen
cg.coverage.regionEastern Africaen
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1016/j.scitotenv.2023.162560en
cg.isijournalISI Journalen
cg.issn1879-1026en
cg.journalScience of the Total Environmenten
cg.reviewStatusPeer Reviewen
cg.subject.ilriFORESTRYen
cg.subject.ilriNRMen
cg.volume874en
dc.contributor.authorAbera, T.en
dc.contributor.authorHeiskanen, J.en
dc.contributor.authorMaeda, E.en
dc.contributor.authorOdongo, Vincent O.en
dc.contributor.authorPellikka, P.en
dc.date.accessioned2023-03-07T14:09:00Zen
dc.date.available2023-03-07T14:09:00Zen
dc.identifier.urihttps://hdl.handle.net/10568/129214
dc.titleImpacts of land cover and management change on top-of-canopy and below-canopy temperatures in Southeastern Kenyaen
dcterms.abstractImpacts of land cover conversion have been studied well from the top-of-canopy level using satellite observations. Yet, the warming or cooling impacts of land cover and management change (LCMC) from below-canopy level remain less explored. Here, we studied the below-canopy temperature change from field to landscape level across multiple LCMC in southeastern Kenya. To study this, in situ microclimate sensors, satellite observations, and high-resolution below-canopy temperature modelling approaches were used. Our results show that from field to landscape scale, forest to cropland conversion, followed by thicket to cropland change, generate higher surface temperature warming than other conversion types. At field scale, tree loss increases the mean soil temperature (measured at 6 cm below ground) more than the mean below-canopy surface temperature but its impact on the diurnal temperature range was higher on surface temperature than soil temperature in both forest to cropland and thicket to cropland/grassland conversions. At landscape scale, compared with top-of-canopy land surface temperature warming, which was estimated at Landsat overpass time (∼10:30 a.m.), forest to cropland conversion generates ∼3 °C higher below-canopy surface temperature warming. Land management change, through fencing of wildlife conservation areas and limiting mobility of mega browsers, can have an impact on woody cover and induce more below-canopy surface temperature warming than top-of-canopy in comparison with non-conservancy areas. These results indicate that human induced land changes can generate more below-canopy warming than inferred from top-of-canopy satellite observations. Together, the results highlight the importance of considering the climatic impacts of LCMC from both top-of-canopy and below-canopy level for effective mitigation of anthropogenic warming from land surface changes.en
dcterms.accessRightsOpen Accessen
dcterms.audienceScientistsen
dcterms.bibliographicCitationAbera, T., Heiskanen, J., Maeda, E., Odongo, V. and Pellikka, P. 2023. Impacts of land cover and management change on top-of-canopy and below-canopy temperatures in Southeastern Kenya. Science of the Total Environmenten
dcterms.issued2023-05en
dcterms.languageenen
dcterms.licenseCC-BY-4.0en
dcterms.publisherElsevieren
dcterms.subjectcanopyen
dcterms.subjectland coveren
dcterms.subjectland managementen
dcterms.subjectpollutionen
dcterms.subjectenvironmental engineeringen
dcterms.typeJournal Articleen

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