Metla Project 3621

Effects of peatland forest harvesting on recipient watercourses

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Duration: 2014-2017   
Research Programme: Forests and Water


Forests affect the quality of water in receiving watercourses. Peatland forests, constituting about 25% of forestry land in Finland are seen as an important bioenergy reserve, and are regarded as potential objects for energywood harvesting. However, only little is known about the ecological effects of stump lifting and whole-tree harvesting on peatland forests. According to the EU water frame directive (2000/60/EC) the quality of the surface waters should reach at least the level "good" by 2015. Therefore, the impact of forest management practises on water quality from peatland forests is receiving increasing attention. Our aim is to study the processes controlling organic carbon, nutrient and heavy metal (especially Hg and MeHg) export from harvested peatland forests using both catchment experiments and laboratory-scale studies, including the effect of bedrock in sites which are rich in heavy metals. In addition, the effect of laboratory pretreatment procedure on the analysed nutrient and heavy metal concentration will be examined. The results will be used to create new management guidelines in operational peatland forestry, especially concerning the impacts of stump lifting and whole-tree harvesting.

Project leader: Ukonmaanaho, Liisa
The Finnish Forest Research Institute > Luke, Vantaa Unit, PO Box 18 (Jokiniemenkuja 1), FI-01301 VANTAA, FINLAND
Phone: +358 29 532 5115

Other researchers: Derome, Kirsti, OU (2015), Hartman, Markus, VA (2014-15), Heikkinen, Juha, VA (2014-15), Hökkä, Hannu, RO (2015), Kantola, Marjatta, VA (2015), Koskela, Merja-Leena, VA (2014), Launiainen, Samuli, JO (2015), Lauren, Ari, JO (2015), Merilä, Päivi, OU (2015), Nieminen, Mika, VA (2014-15), Nieminen, Tiina, VA (2014-15), Nousiainen, Hannu, VA (2015), Penttilä, Timo, VA (2015), Piispanen, Juha, OU (2015), Ruokolainen, Maija, VA (2014), Tervahauta, Arja, VA (2015)

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Updated 07.11.2015