Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Reduced global warming potential after wood ash application in drained Northern peatland forests

Artikel i vetenskaplig tidskrift
Författare Tobias Rütting
Robert G. Björk
Astrid Meyer
Leif Klemedtsson
U. Sikstrom
Publicerad i Forest Ecology and Management
Volym 328
Sidor 159-166
ISSN 0378-1127
Publiceringsår 2014
Publicerad vid Institutionen för geovetenskaper
Sidor 159-166
Språk en
Länkar dx.doi.org/10.1016/j.foreco.2014.05...
Ämnesord Forestry, Greenhouse gas, Mitigation option, Land use change, Tree growth, NITROUS-OXIDE EMISSIONS, SCOTS PINE, SOIL RESPIRATION, MANAGED, PEATLANDS, CENTRAL FINLAND, ORGANIC SOIL, PICEA-ABIES, GROWTH, FERTILIZER, FLUXES, Forestry
Ämneskategorier Geovetenskap och miljövetenskap

Sammanfattning

Past land use change has converted vast areas of Northern peatland by drainage to agricultural or forested land. This change often reduces the greenhouse gas (GHG) sink strength of peatlands or turns them even from sinks to sources, which affects the global climate. Therefore, there is a need for suitable mitigation options for GHG emissions from drained peatlands. Addition of wood ash to peatland forests has been suggested as such a measure, but the overall effect on the global warming potential (GWP) of these ecosystems is still unclear. In order to fill this knowledge gap, we investigated three drained peatland forests in Sweden that had been fertilized with wood ash and monitored stand growth as well as the GHG emissions from soil, i.e. net effluxes of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). Our results show that over the first five to eight years after wood ash application, tree growth was enhanced at all sites. This was accompanied by generally little changes in the GHG emissions. Overall, we found that wood ash application reduced the GWP of drained peatland forests. Even though that our study was limited to eight years after wood ash application, we can conclude that in the short term wood ash application may be a suitable mitigation option for GHG emissions from Northern drained peatland forests.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?