Pirkanmaa region is strong by her Carbon husbandry


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Dry biomass and the annual biomass growth in Finnish forests since 1921

Kuva
In the Carbon husbandry with trees, and forests in general, it is logical to add the treetop, the branches (including the foliage) and the roots into the stock of the solid stems. The total biomass is most logical to estimate in dry tons. The basic measurement also for Sink Forests is in the stems, as solid cubic meters in one stem, or solid cubic meters per one hectare.   Picture 1. Cubic meters easily measurerable in Scots pine forest in South Finland (Kiikala) In the Finnish forest inventory series between 1921 - 2019 the total  biomass stock (in dry tons)  has been measured three times for the periods NFI 11 (2009-2013), NFI 12 (2014-2018) and NFI 12/13 (2015-2019). With normal statistical sampling plots this was done together with the normal solid cubic meters inventory. Picture 2. Shares of solid cubic meters in tree classes in the  three last Forest inventories (NFI 11 - NFI 13). The Finnish forests are typically coniferous forests. They cover 80 pe...
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Reference Carbon fluxes in Finnish Carbon husbandry

Kuva
The important, key fluxes in Finnish Carbon husbandry are the two: (1) positive Carbon sink flux to Finnish forests and (2) negative Carbon emissions (source) flux from Finnish arable lands. The most accurate data in Finland have been measured for (1) in Finnish forests. In the year 2020 there is the calculated average Carbon sink flux to Finnish forests of magnitude +393 kg C/ha/a.  Picture 1. Coppicing Downy birch - promising tree species for boreal Carbon husbandry in peatlands The most accurate data for Finnish arable lands (2) has been measured for mineral soils. In the year 2020 there is the calculated average Carbon emissions flux from Finnish arable lands of magnitude -430 kg C/ha/a. (Figure 1). Figure 1. Reference Carbon fluxes. Sink fluxes positive, source (emissions) fluxes negative. There is still less comprehensive measurement series for Carbon emissions from arable lands on peat soils. However, it is assumed that the emissions from a peat arable hectare are about 10...
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