Pirkanmaa region is strong by her Carbon husbandry


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Solid cubic meters of forest trees and their annual growth in Finland since 1921

Kuva
At national level the most remarkable above ground Carbon stock in Finland is in the forests. The most common basic measurement for the forests, is the amount of above ground solid cubic meters in the trees. It is normally measured for the stems only. The data correlates strongly with the total dry biomass in the trees (stems, branches, foliage, stumps and roots). Further, the solid cubic meters data correlates strongly with the amount of elementary Carbon in the trees (stems, branches, foliage, stumps and roots). Photo 1. Boreal forests are a remarkable Carbon stock in Finland. The changes in the amount of solid cubic meters in the trees indicate the changes in the Carbon stock. Positive change tells about the Carbon sink flux into the forests. Negative change tells about the Carbon source flux (or Carbon emissions flux) from the forests.  The regular inventory of forest trees, for their solid cubic meters, has been done in Finland since 1921 (Figure 1). The latest National Fore...
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Carbon stock in and Carbon fluxes at mineral soil arable lands in Finland

Kuva
Carbon in agricultural fields belongs to the most topical research sectors for climate change in 2020s. Carbon husbandry is searching for new methods how to increase the Carbon stock in the soil. Also perennial crops and agroforestry methods have become more topical, like possibility of willow husbandry in new era farms (Picture 1).  Picture 1. Annual and perennial crop blocks in the agriculture Carbon in agricultural fields, in arable lands has been measured by the Natural Resource Institute Finland (Luke) in a comparative manner, in several hundreds sample plots, by repeating four times, since 1987 (ref 1). The basic measurements have been done for the content of elementary Carbon in dry soil (g C/kg). The measurements cover three soil classes: mineral soil, mull soil and peat soil. The classification is based on the share of dry weight organic (humus) soil in the total soil dry weight. In mineral soil the organic share is less than 20 per cent. In mull soil the share is between ...
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Development of the land area of Sink Forests in Finland since 1921

Kuva
The definition of Forestry land in Finland is based on the volume growth of existing, living trees in the selected area - or on the potential volume growth in same area if there has been for instance a temporary forest clear cut in the area. In the standard silviculture the area is waiting for replanting or for natural recovery, in a few (less than 10) years. The Forestry land has been divided into four categories (Figure 1). First, when the average volume growth (stems only) is more than one solid cubic meter per hectare per annum, the land area is called Forest land. Second, when the average volume growth is between 0.1 - 1.0 m3/ha/a the land area is called Poorly productive forest land. Third, when the average growth is less than 0.1 m3/ha/a the land area is still included in the main category of forestry land but it has been nominated as Unproductive (forest) land. Fourth, under the main Forestry category there is still a minimal forestry land class called Forest roads and depots....
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