DIGITALNA ARHIVA ŠUMARSKOG LISTA
prilagođeno pretraživanje po punom tekstu




ŠUMARSKI LIST 9-10/1984 str. 47     <-- 47 -->        PDF

6.
p 1 a v š i (´, M. i G nlubuv i ć, U: Istraživanje vrijednosnog prirast;) drvne mase
u mješovitim sasitojiđtlama hrasta lužnjaka i poljsko« jasena. Glasnik za šumske
pokuse Šumarskog fakulteta u Zagrebu, Krnj. XX, Zagreb, 1980., sr. 93—148.
7.
Statistički godišnjak Jugoslavija 1964. godine. Savezni zavod za statistiku. Beograd,
1964.
8.
Troškovi sječe i izrade, izvoza i utovara hrastove oblovine na pomoćnom stovarištu
u 1978. godini, prema službenim dopisima šumarije Vrbovec, Spačva,
Repaš, Lipovljani i Novska.
Investigations into the Economic Consequences of Sapwood Rotting Due to the
Dying Back of Pedunculate Oak (Quercus Pedunculata) in the Forest of the
Socialist Republic of Croatia


Summary


The author had earlier (4) published a report on his investigations into the economic
consequences of the dying back of pedunculate oak, as they found them by
comparing oak stands of varied ages — both healthy and those affected by dying-back
process — in the lowland forest of Slavonia and Podravina.


In the present work he investigate the economic consequences of sapwood rotting
owing to the dying beck of pedunculate oaks of varied ages as they manifested
themselves in the exploitation of pedunculate oak stands affected by the process
in these lowland forest, and the level of allowances to be made for it to buyers.


As it is well krown, unless it is quickly removed, the sapwood of the died back
oak trees rots out in 2 — 3 years. An allowance for such sapwood must, therefore,
be made to the buyer by the producer, although the later has borne the cost of the
cost of the felling, trimming, hauling and loading on means of transportation a I
auxiliary depost.


By using a random-sample method, the author carded out the investigations Jr.
11 areas of eight forestry districts in Slavonia and Podravina, using an original of
measurement of felled and trimmed assortiments, whose volume totalled about
1,490 cu. m.


lie foued the following negative financial consequecs of the exploitation of pedunculate
oak stands affected by the dying back process:


— Sapwood regularly decays and affects on average 23.52 per cent of roundwood;
this loss also established by the author in investigating individual assortments;
— The loss of sapwood not only diminishes the quantity of useable roundwood,
but also lowers the class of assortments owing to their smaller useable diameters,
thuss, the total loss of he value of roundwood assortments increases to 32.90
per cent of their potential market value.
— To this should be added the direct useless costs of fellings, trimming, hauling
and loading of sapwood to means of transportation at auxiliary depost, which
amounts to a furth er 5.96 per cent of the potential market values of assortments.