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Znanstveno-stručno i staleško glasilo
Hrvatskoga šumarskoga društva
Journal of Forestry Society of Croatia
      Prvi puta izašao 1877. godine i neprekidno izlazi do današnjeg dana
   ISSN No.: 0373-1332              UDC 630* upute autorima     povijest    digitalizacija
WEB EDITION
ARHIVA ČASOPISA


HRČAK


 
EDITORIAL
     
UREDNIŠTVO
IS THE FOREST ACT BINDING FOR ALL FOREST OWNERS?     pdf     HR     EN 5
 
ORIGINAL SCIENTIFIC PAPERS
     
Igor ANIĆ, Stjepan MIKAC, Mladen OGNJENOVIĆ UDK 630* 568 + 815 (001)
doi:10.31298/sl.142.1-2.1
SELECTION OF TREE SPECIES FOR THE SUBSTITUTION OF POPLAR PLANTATIONS ALONG THE RIVER DRAVA NEAR OSIJEK     pdf     HR     EN 7
Igor POLJAK, Marilena IDŽOJTIĆ, Irena ŠAPIĆ, Patrik KORIJAN, Joso VUKELIĆ UDK 630* 181.8 + 164 (001)
doi:10.31298/sl.142.1-2.2
DIVERSITY AND STRUCTURE OF CROATIAN CONTINENTAL AND ALPINE-DINARIC POPULATIONS OF GREY ALDER (Alnus incana /L./ Moench subsp. incana): ISOLATION BY DISTANCE AND ENVIRONMENT EXPLAINS PHENOTYPIC DIVERGENCE     pdf     HR     EN 19
Martin BOBINAC, Siniša ANDRAŠEV, Andrijana BAUER-ŽIVKOVIĆ, Nikola ŠUŠIĆ UDK 630*242 (001)
doi:10.31298/sl.142.1-2.3
EFFECTS OF HEAVY THINNINGS ON THE INCREMENT AND STABILITY OF A NORWAY SPRUCE STAND AND ITS TREES BETWEEN THE AGES OF 32 AND 50     pdf     HR     EN 33
Summary
The paper studies effects of two heavy thinnings on the increment and slenderness of various categories of trees and stability of the stand as a whole. The research was conducted on a permanent experimental plot in an Norway spruce (Picea abies /L./ Karst.) monoculture in Serbia. This monoculture was established with 5,000 seedlings per hectare on the site of mountain beech forest and the effects of heavy thinnings were investigated in the 33-40 and 41-50 age periods.
To determine the thinning effects we compared current diameter increments (idt) and current height increments (iht) of dominant trees (D100 and D400) obtained by a detailed analysis of trees and of mean stand dominant trees (D100 and D400). At the stand level, we compared the current diameter (id), basal area (IG) and volume (IV) increments of all trees and of the same collective of aspirants in two periods after the thinnings, between the ages of 33 and 40, and between the ages of 41 and 50.
The first thinning was carried out at the age of 32 when the dominant trees were 15 m tall and the next at the age of 40 when the dominant trees were above 20 m in height. They were both low (qd <0.85) and heavy selective thinnings (34-36% of the volume). A more significant increase in the diameter increment was recorded after the second thinning between the ages of 41 and 50. It amounted to 29.1% in aspirants and 36-42% in dominant trees (D100 and D400) compared to the period after the first thinning, i.e., between the ages of 33 and 40. The thinnings further contributed to the establishment of more favorable relations in diameter and height increments of the trees in the studied culture and thus improved their stability.

Key words: Picea abies /L./ Karst.; monoculture; permanent experiment plot; heavy thinning; slenderness
Bratislav MATOVIĆ, Miloš KOPRIVICA, Bratislav KISIN, Dejan STOJANOVIĆ, Igor KNEGINJIĆ, Stefan STJEPANOVIĆ UDK* 228 + 653 (001)
doi:10.31298/sl.142.1-2.4
COMPARISON OF STAND STRUCTURE IN MANAGED AND VIRGIN EUROPEAN BEECH FORESTS IN SERBIA     pdf     HR     EN 47
 
PRELIMINARY COMMUNICATION
     
Milan PERNEK UDK 630* 453
doi:10.31298/sl.142.1-2.5
NEW CALCULATION OF CRITICAL NUMBER OF GYPSY MOTH (Lymantria dispar L.) EGG MASSES FOR BETTER POPULATION DENSITY PROGNOSIS     pdf     HR     EN 59
Luka RUMORA, Mario Miler, Damir MEDAK UDK 630* 587
doi:10.31298/sl.142.1-2.6
IMAGE FUSION INFLUENCE ON FOREST AREA CHANGE USING UNSUPERVISED CLASSIFICATION     pdf     HR     EN 67
 
REVIEWS
     
Carlos G. ROSSA, Paulo M. FERNANDES UDK 630* 148.2 + 111.8
doi:10.31298/sl.142.1-2.7
ON THE FIRE-SPREAD RATE INFLUENCE OF SOME FUEL BED PARAMETERS DERIVED FROM ROTHERMEL’S MODEL THERMAL ENERGY BALANCE     pdf     HR     EN 77

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