Pirkko Mustamo, Maarit Hyvärinen, Anna-Kaisa Ronkanen and Bjørn Kløve
Proceedings of the 14th International Peat Congress
co2-emissions, effects-of-land-use, peat-physical-properties
Theme III. Agricultural use of peat and peatlands
Aim of this study was to determine effects of different land uses on physical properties of peat and CO2 emissions from peatland sites. An undrained bog and peatland sites drained for agriculture, forestry and peat extraction were studied. In the agricultural site and the peat extraction site, top layer of soil was compressed, and in the agricultural site, addition of sand caused high ash content in the top soil. CO2 fluxes from the agricultural site were the highest, but decreased after harvest of grass. CO2 fluxes were positively correlated with air and soil temperature and negatively correlated with soil humidity.