Finlands Akademi
Namn Kulmala, Liisa
Organisation HY
Projektets titel Climatic response of the primary production of ground vegetation and its destiny in boreal Scots pine forests
Beslutnr 277623
Beslutsdatum 10.04.2014
Finansieringsperiod 01.09.2014 - 28.02.2018
Finansiering 266 140
WebFOCUS Report
Beskrivning av projektet
Trees have a major impact on human life as they provide many ecosystem services. The project studied the carbon sequestration of pine forests on a latitudinal gradient in Europe. The latitude affected the main environmental drivers for the momentary diameter growth. In a laboratory experiment, the carbon balance of common dwarf shrubs was comparable to pines of the same size, except for the root respiration, which was light-dependent with the dwarf shrubs unlike with the pines. Consequently, soil CO2 emission models based on temperature may be misleading. The forest floor vegetation fixed app. 40% of all photosynthesized carbon in northern Finland. Because of the long snow cover, the seasonal dynamics of photosynthesis of forest floor differ from that of trees. For this reason, the depth of the snow cover should be included into the models of primary production especially in the northern forests where the importance of forest floor vegetation is high.