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ŠUMARSKI LIST 3-4/2004 str. 50     <-- 50 -->        PDF

I. Seletković, N. Potočić: OŠTEĆENOST ŠUMA U HRVATSKOJ U RAZDOBLJU OD 1999. DO 2003 Šumarski list br. 3-4, CXXVIII (2004), 137-148
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SUMMARY: In this paper the data on crown condition of forests in Croatia
is presented for the five-year period 1999-2003, separately for all species,
broadleaves, conifers and three most prominent tree species, pedunculate oak
(Quercus robur L.j, common beech (Tagus sylvatica L.) and silver fir (Abies
alba Mill.). A comparison is made of the percentage of moderately to severely
damaged trees for these three species with European data, as well as with the
data from Forest Administration.


The percentage of moderately to severely damaged trees in Croatia does
not fluctuate significantly in the research period. While the damage of oak
and beech is higher in Europe, silerfir is more damaged in Croatia.


The sample size, year- to- year differences and variability of applied criteria
in Forest Administration affect the accuracy of crown condition assessment.


Key words: Crown condition assessment, pedunculate oak, common
beech, silver fir, percentage of moderately to severely damaged trees