broj: 1-2/2013
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| RIJEČ UREDNIŠTVA | ||
| Uredništvo | ||
| 45TH EFNS ENDS SUCCESSFULLY pdf HR EN | 5 | |
| IZVORNI ZNANSTVENI ČLANCI | ||
| Dževada SOKOLOVIĆ, Dragutin PIČMAN, Ahmet LOJO, Safet GURDA, Muhamed BAJRIĆ, Haris KOLJIĆ | UDK 630*383+686 (001) | |
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| Gregor BOŽIČ, Mladen IVANKOVIĆ, Lado KUTNAR | UDK 630*165+187 (Fagus sylvatica L.) (001) | |
| GENETIC STRUCTURE OF EUROPEAN BEECH (Fagus sylvatica L.) SEED STANDS FROM DIFFERENT FOREST SITES OF GORJANCI MOUNTAINS AS REVEALED BY ISOENZYMES pdf HR EN | 25 | |
| Savo Rončević, Siniša Andrašev, Petar Ivanišević, Branislav Kovačević, Bojana Klašnja | UDK 630*537+262 (001) | |
| BIOMASS PRODUCTION AND ENERGY POTENTIAL OF SOME EASTERN COTTONWOOD (Populus deltoides Bartr. ex Marsh.) CLONES IN RELATION TO PLANTING SPACING pdf HR EN | 33 | |
| Abstract The possibility of biomass production was studied in an experimental trial stand with four clones of Eastern cottonwood Populus deltoides Bartr. ex Marsh. cl.457, cl.450, cl.618 and cl. 55/65 and three stand densities a) 1.2 × 1.0 m (8330 plants·ha–1), b) 1.2 × 0.75 m (11110 plants·ha–1) and c) 1.2 × 0.5 m (16600 plants·ha–1). Field trials were conducted on sandy-loamy form of fluvisol. Total determined volume of trunk, bark, and branches in the first two-year cycle for the used Eastern cottonwood ranged from 27.391 m3·ha–1 in clone 450 at planting distance of 1.2 × 1.0 m, subtreatment (a) to 42.006 m3·ha–1 in clone 618, subtreatment (c) at planting distance of 1.2 × 0.5 m. After renovation of stand using the regeneration force of shoots from the tree stumps the produced wood mass in the second two-year cycle ranged from 54.664 m3·ha–1 in clone 55/65, subtreatment (a) to 79.235 m3·ha–1 in clone 450, subtreatment (b). In additon to clone selection a significant influence on biomass yeald was also exerted by stand density (number of plants·ha–1). The largest amount of heat energy would be obtained in subtreatment (c) at density of 1.20 × 0.5 m by combustion of biomass of above ground part of clone 55/65: 364.02 GJ·ha–1 in the first cycle, and 659.83 GJ·ha–1 in the second, or a total of 1023.85 GJ·ha–1. Key words: poplar; clone; plant density; biomass; energy value | ||
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| Jovana PETROVIĆ, Nenad STAVRETOVIĆ, Srećko ĆURČIĆ, Ivana JELIĆ, Bojana MIJOVIĆ | UDK 630*411+442 (001) | |
| INVASIVE PLANT SPECIES AND GROUND BEETLES AND ANTS AS POTENTIAL OF THE BIOLOGICAL CONTROL: A CASE OF THE BOJČIN FOREST NATURE MONUMENT (VOJVODINA PROVINCE, SERBIA) pdf HR EN | 61 | |