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28 Yrjö Ilvessalo, The Forest .’Resources’ of Finland in 1936—1938
The volume of dry trees and windfalls is given in a condensed
form in Table 15.
Table 15. Volume of dry trees and windfalls in the forests.
Part of country Average per ha Total volume
Dry trees [-Windfalls-] {+Wind- falls+} Total Dry trees [-Windfalls-] {+Wind- falls+} Total
m3/ha million m3
West Finland .............. 0.63 0.07 0.70 3.64 0.41 4.05
East Finland ....................1.70 0.09 1.79 10.18 0.52 10.70
Ostrobothnia ............... 0.64 0.02 0.66 1.74 0.05 1.79
South Finland total.........| 1.08 0.07 1.15 15.56 0.98 16.54
North Finland total.........| 3.62 O.io 3.72 38.92 0.96 39.88
Whole countryl 1.85 0.08 1.93 54.48 | 1.94 56.42
The volume of the standing dry trees thus averages 1.8 5 m3 per ha
of forest land and of the windfalls only 0.0 8 m3. In West Finland and
Ostrobothnia, where wood is generally used more economically than
elsewhere, the quantity of dry trees and windfalls is less than in East
Finland. In the latter they occur particularly in the easternmost
parts of the country, where the population is very scattered. In North
Finland the number of dry trees is much larger than in the southern
half of the country, this being due, above all, to the sparse population
and comparatively abundant forest resources and the dead trees still
standing since former times.
The total volume of the dry standing trees and windfalls is about
56 million m3, of which about 70 per cent are in the forests of North
Finland, 19 per cent in East Finland and only 11 per cent in West
Finland and Ostrobothnia together. If the volume of the dry trees and
windfalls is added to the volume of the growing stock, 1 560 million m3,
the total volume of the forests of Finland amounts to 1 616 million m3.
The division of the total growing stock according to species
of trees is shown in a condensed form in Table 16, in which the
corresponding figures for the survey in 1922—23 are also given.
Although a comparison is interfered with by the factors previously
referred to, some clear tendencies can be observed in the trend of the
volumes.
The total volume of pine is now 71.3 million m3 less than in
1922—23. About 2/3 of the reduction refer to East Finland. From the
remarks on previous pages it can be concluded that this is chiefly due to
the cutting of old forests, possibly over-mature to an appreciable extent
A considerable decrease in the total volume of pine is also noticeable in
West Finland, where it is evidently due principally to a strong pre-
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