0000000000627056

AUTHOR

Paavo Ojanen

showing 3 related works from this author

Soiden ennallistamisen suoluonto-, vesistö-, ja ilmastovaikutukset. Vertaisarvioitu raportti.

2021

Tämän selvityksen tarkoituksena on tuottaa kirjallisuuskatsaus ja siihen pohjautuvia johtopäätöksiä soiden ennallistamisen ilmasto-, vesistö- ja suoluontovaikutuksista. Selvitys pyrkii erityisesti kasaamaan yhteen uusimpia tutkimustuloksia ja aineistoja ennallistamisen vaikutuksiin liittyen ja toisaalta muodostamaan kokonaiskuvan laaja-alaisempaa soiden ennallistamisstrategiaa silmällä pitäen. Suoekosysteemit reagoivat kokonai-suutena varsin hyvin perinteisiin ennallistamistoimiin. Ennallistaminen ei kuitenkaan ole ongelmatonta, sillä ennallistamistoimet eli yleensä kaivin- ja metsäkonetyöt sekä ennallistamisen jälkeisen alkuvaiheen voimakkaat ekosysteemin muutokset voivat aiheuttaa yhteisk…

1172 Ympäristötiede4112 Metsätiede
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Nitrous oxide emission budgets and land-use-driven hotspots for organic soils in Europe

2014

Organic soils are a main source of direct emissions of nitrous oxide (N2O), an important greenhouse gas (GHG). Observed N2O emissions from organic soils are highly variable in space and time, which causes high uncertainties in national emission inventories. Those uncertainties could be reduced when relating the upscaling process to a priori-identified key drivers by using available N2O observations from plot scale in empirical approaches. We used the empirical fuzzy modelling approach MODE to identify main drivers for N2O and utilize them to predict the spatial emission pattern of European organic soils. We conducted a meta-study with a total amount of 659 annual N2O measurements, which was…

N-DEPOSITION1171 GeosciencesPeat010504 meteorology & atmospheric sciencesGRASSLANDWater tableeducationlcsh:LifeGreenhouse gas inventorySoil scienceAtmospheric sciences01 natural sciencesGrasslandSoil pHlcsh:QH540-549.5media_common.cataloged_instanceAGRICULTURAL SOILSEuropean unionEcology Evolution Behavior and Systematics1172 Environmental sciences0105 earth and related environmental sciencesEarth-Surface Processesmedia_commongeographyPOLICY SUPPORT4112 Forestrygeography.geographical_feature_categoryCH4lcsh:QE1-996.504 agricultural and veterinary sciences15. Life on landWATER-TABLEPEAT SOILSlcsh:Geologylcsh:QH501-53113. Climate actionGreenhouse gasSoil waterNORTHERN PEATLANDS040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental scienceCO2lcsh:EcologyN2O FLUXES
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Nitrous oxide emission hotspots from organic soils in Europe

2014

Abstract. Organic soils are a main source of direct nitrous oxide (N2O) emissions, an important greenhouse gas (GHG). Observed N2O emissions from organic soils are highly variable in space and time which causes high uncertainties in national emission inventories. Those uncertainties could be reduced when relating the upscaling process to a priori identified key drivers by using available N2O observations from plot scale in empirical approaches. We used the empirical fuzzy modelling approach MODE to identify main drivers for N2O and utilize them to predict the spatial emission pattern of European organic soils. We conducted a meta study with a total amount of 659 annual N2O measurements whic…

chemistry.chemical_compoundchemistryEnvironmental chemistrySoil waterEnvironmental scienceNitrous oxide
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