Martin Bobinac

University of Belgrade · Sylviculture

Stand structure analysis was conducted before and after natural regeneration (on the same plot) on a site of monodominant sessile oak forest (Quercetum petraeae Čer. et Jov. 1953., subass. tilietosum). In this stage individual old sessile oak trees were still remaining in the stand. Before the regeneration in the 150-yr-old stand in 1992 only sessi...

The application of silviculture measures on contemporary, rationalized basis in order to sustain and improve forests in the area of the National park „Fruška Gora”, is the most im­portant segment of forest management, having in mind their anthropogenically deteriorated conditions and their purpose. For the improvement of stand conditions, intensive...

Growth elements and stand structure of an artificially established Norway spruce stand were presented at age 37 and 62-yr on the basis of a single permanent sample plot and their changes analyzed. The stand was established with 4500 seedlings per hectare. At age 37-yr on the permanent sample plot, 2600 trees per hectare were recorded with basal are...

Tree-of-Heaven (Ailanthus altissima (Mill.) Swingle) is an invasive tree species in Serbia that threatens the floristic biodiversity in natural stands and urban areas. It is a heliophyte with rapid growth in the initial phase of development and a well-expressed adaptability to different environmental conditions in open habitats. With early maturity...

This paper analyses the cumulative effects of selective thinning and thinning from below on diameter and basal area increments of target trees after 25-26 years in 52, 69-and 86-year-old silver lime (Tilia tomentosa Moench) stands. Two target tree collectives were analyzed: elite trees selected in 1993-1994 on permanent sampling plots (selective th...

The paper analyzes the elements of the stand structure and proposes silvicultural measures to improve conditions in the stand of black locust (Robinia pseudoacacia L.) and common hackberry (Celtis occidentalis L.) aged 28 years in Subotica-Horgoš sands. The research was performed on three permanent experimental plots on which selective thinning (T1...

Growth and structure of Italian alder ( Alnus cordata /Loisel/ Duby) trees were analyzed in a linear plantation established by planting two-year-old seedlings at Fruška Gora (Serbia). The aim of this paper is to point out the growth characteristics and the structure of the Italian alder linear plantation at age 11 and 16 years and contribute to the...

In this paper, a change of diameter structure in a pre-maturing stand of black locust and common hackberry under the influence of a late thinning is analysed. The research is based on three permanent experimental plots and two measurements of diameters in a five-year period. One of the plots is a control plot and two plots are experimental, where t...

U radu su prikazani elementi rasta stabala u linijskim nasadima talijanske johe (Alnus cordata /Loisel./ Duby) u starosti 11 i 16 godina i crne johe (Alnus glutinosa /L./ Gaertn.) u starosti 100 godina u sličnim stanišnim uvjetima na Fruškoj gori (Srbija). Nasadi su osnovani na antropogeno izmijenjenom staništu lužnjaka i graba u potočnoj dolini, n...

A morphometric analysis was conducted on three-year-old Turkey oak seedlings naturally regenerated from 2015 mast year in a degraded stand at Fruška gora on the site of pedunculate oak, European hornbeam and Turkey oak with limes (Carpino betuli-Quercetum roboris (Anić 59) Rauš 1971 var. geograf. Tilia argentea + Tilia cordata B. Jovanović & Tomić...

The paper presents the growth characteristics of one-year-old seedlings of three autochthonous oak species (Fagaceae family): Turkey oak (Quercus cerris L.), Hungarian oak (Quercus frainetto Ten.) and downy oak (Quercus pubescens Willd.) in suboptimal growing conditions. The analyzed oak species are widely distributed in Serbia. One of the most imp...

In silviculture, the characteristics of growth of seedlings in relation to light conditions are an important indicator of the success of natural regeneration. The paper shows the growth characteristics of one-year-old Hungarian oak seedlings in full light conditions in a field experiment conducted in 2016 in the nursery of the Faculty of Forestry i...

Istraživanje je provedeno u kulturi alohtone vrste Gymnocladusdioicus (L.) K. Koch na Fruškoj gori, osnovanoj 1932. godine s razmakom sadnje 3 × 3 m, na staništu lužnjaka i običnog graba ( Carpino betuli - Quercetum roboris /Anić 59/ Rauš 1971. ), na nadmorskoj visini 120 m. Elementi rasta stabala i sastojine u dobi od 75, 80 i 85 godina ukazuju na...

This paper presents the structure of well-preserved, mature stands of seed origin and young stands that followed either after planned regeneration or spontaneously in the understory reinitiation stage, in monodominant sessile oak forests (Quercetum petraeae Cer. et Jov. 1953.) from two subassociations, tilietosum and typicum, in the territory of ?D...

The paper deals with issues related to the regulation of the growing space of trees by thinning in poplar plantations of clone I-214, established on the best habitatat with a planting distance of 5 x 5 m, i.e. 400 trees per hectare, aged 11 years. On nine permanent experimental plots, which were formed in a random block design with three repetition...

The genus Gymnocladus (Fabaceae) consists of five species with reproductive system described as polygamous, monoecious and dioecious. The species Gymnocladus dioicus (L.) K. Koch has been present in Serbia for over 150 years. Its flower sexuality was described as dioecious, but there are references stating that there are flowers that are morphologi...

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 paper studies the effects of two heavy selection thinnings on the increment of Norway spruce trees exposed to ice and snow breaks in eastern Serbia. In a thinning that was carried out at 32 years of age, 556 candidates per hectare were selected for tending, and at the age of 40, of the initial candidates, 311 trees per hectare (55.9%) were sele...

Abstract: The paper presents the occurrence of subspontaneous dispersal of Kentucky coffeetree in the park-forest which is a part of a protected natural area ‘’Topčiderski park’’ in Belgrade. In 1949, three trees of Kentucky coffeetree not older than 85 years were recorded. In 2016, one sexually reproductive tree was recorded in Topčider which is a...

In this nursery experiment, 100 one-year-old northern red oak seedlings were measured at the end of the 2016 growing season. Measured growth elements were: total height, root collar diameter and total leaf area. All seedlings were classified according to the presence of polycyclism into four types: one-flush growth, two-flush growth, three-flush gr...

This paper considers the height growth characteristics of white ash in the region of Majdanpečka Domena. The regularities of height growth of this species were analyzed in 10 young stands (with 30 dominant trees felled for growth reconstruction), for different site conditions. For the purpose of comparing the growth of white ash and the other indiv...

The foreign tree species, Alnus cordata/Loisel./Desf. (Italian alder), (Betulaceae/Loisel./Duby), not previously recorded in the dendroflora of Serbia, is described in this paper. Italian alder trees in an experimental plot in the area of Erdevik, aged 11 years, show good vitality and fast growth, and bear fruits since their 10th year. Tree heights...

This paper presents the alien species Carya illinoinensis (Wangenh.) K. Koch, carya-pecan, (Juglandaceae A. Richard ex Kunth) that has not been mentioned so far in the dendroflora of Serbia. One tree was recorded within the first Serbian sugar factory in Čukarica that is now a protected cultural property in the City of Belgrade. The tree is about 3...

This paper presents the elements of growth of black locust trees and stands in 15 sample plots in Vojvodina, at the age of 21-68 years. In each sample plot, based on soil profile horizons the determined soil type was chernozem as well as its lower systematic units (subtype, variety and form), according to the Škorić et al. (1985) classification. On...

Background and Purpose: Structure of crowns in forest stands is one of the main factors which determines growth and development of trees. Dynamic change occurs with the age of the stand due to silvicultural interven-tions or natural disturbances during which trees are removed from the stand. The aim of this article is to analyse the structure of th...

Two permanent sample plots in Morović were analyzed in terms of the structure of trees felled in a sanitation felling in pedunculate oak stands aged 118-135 and 123-140 years. The stands belong to the most common types of hygrophile and mesophile pedunculate oak forests in the area of Flat Srem. The measurements of stem diameters, tree heights and...

Height growth characteristics of one-year-old pedunculate oaks were studied during three calendar years on comparative regeneration areas both with and without fungicide protection against oak powdery mildew (Microsphaera alphitoides Griff. et Maubl.). Three fungicides were used for the chemical protection of one-year-old pedunculate oaks: Microthi...

Research was conducted in the experiment plot of euramerican poplar clone I-214, which was founded with one year seedling type 1/1 with spacing 6 x 6 m in the square system on the alluvial soils of river Sava basin in which browning processes is expressed. Eleven years after the plantation establishment 3 blocks with two experimental plot of 0.2016...

Polycyclism is the ability for a plant to produce several flushes in the same growing season. The rare phenomenon of common oak (Quercus robur L.) summer flowering is proof of complex polycyclism. Common oak summer flowering and the unusual transformation of inflorescences were the starting point for this study of the phenological variability of co...

Summer flowering of the common oak is a natural rarity, considering the large area of the species natural distribution. This phenomenon can be classified as an ancestral (atavistic) property. Pollen morphological and physiological characters from spring flowering male inflorescences collected over the period 2004 - 2007 and summer flowering male in...

SAŽETAK: U nasadu topole klona I-214, osnovanom pri razmaku sadnje 6 × 6 m u sistemu kvadratne veze na zemljištu srednje povoljnom za uzgoj topola, analizirani su učinci prorjede koja je izvedena 11 godina nakon osnivanja nasada. Prorjeda je imala selektivan karakter, odnosno izdvojena je grupa tzv. perspektivnih stabala u broju koji odgovara prosj...

U radu je istraživan uticaj istorijskih i političkih promena na razvoj naselja u posavskim predelima na prostoru današnje Srbije u vremenskom opsegu od 18. veka do danas. Analizirana je transformacija, po prirodnim karakteristikama i etničkom sastavu, dva slična predela - donjeg Srema i obrenovačke Posavine, ali i veoma različita, po istorijski usp...

The study was conducted in two plantations of white willow (Salix alba L.) in Donji Srem on the humogley soil type (hydromorphic black soil), which belongs to a narrow-leaved ash forest with remote sedge (Carici remotae - Fraxinetum angustifoliae Jov. et Tom., 1979). The plantations are located in the same depression. The SP (sample plot)-1 plantat...

In most European countries, the service tree (Sorbus domestica L.) is a rare and threatened species and its conservation has been recognised as a priority. The aim of this study was to asses its morphologic variation in the western and central part of the Balkan Peninsula and in southern Central Europe. Three populations were analysed: one in Serbi...

This paper analyzes the variability of the height of black locust stands characterized by different ecological conditions and different origin (generative, vegetative) in the area of Deliblatska Pescara. Heights of958 trees were measured in 16 sample plots. It was found that black locust heights in the most frequent stands of Deliblatska Pescara co...

In the area of the western Balkans, xerothermal broad-leaf forests hold a very special position, the main species being pubescent oak (Quercus pubescens Willd.). The study comprises 36 populations of pubescent oak from Croatia, Bosnia and Herzegovina, Montenegro, Kosovo, Albania and Macedonia. Genetic variability and population diversity was analys...

Background and Purpose: For the process of optimisation of annual seedling production of narrow-leaved ash (Fraxinus angustifolia Vahl) planned for the reforestation of marshland sites morphology, height and diameter growth and structure of narrow-leaved ash were researched in the nursery on fluvisol in different microsite conditions (microsite A –...

We examined leaf and mature seed cone variation of Juniperus oxycedrus L. subsp. oxycedrus in 12 natural populations across the species range in the Balkan Peninsula. We measured 10 morphological traits from a minimum of 100 leaves in each of 190 individuals, and two morphological traits from 30–50 seed cones in each of 94 females. High phenotypic...

Za razumevanje uticaja klimatskih promena za koje se pretpostavlja da će u budućnosti predstavljati globalnu pretnju za opstanak i razvoj šuma u Južnoj Evropi i Mediteranu potrebno je komparativno proučavati zakonomernosti funkcionisanja glavnih vrsta u šumskim ekosistemima. Na osnovu divergencije u veličinama bioloških osobina hrasta crnike (Querc...

Two experimental plantations of Euramerican poplar (Populus×euramericana (Dode) Guinier) - clone I-214 were researched on the river Sava alluvium in Srem. Three sample plots were established in each of the plantations, aged 31 years. The soil type was humofluvisol (alluvial semigley), planting space 6×6 m. The plantations were established with 278...

Past experience has shown that the application of silcivultural measures to pedunculate oak stands of lessened functional capacity is met with severe restrictions for the achievement of the desired results and goals. This work analyzes the effects of different silcivultural measures in comparative permanent sample plots (P.P. -1 and P.P. -2), under...

Sessile oak (Quercus petraea agg. Ehrendorfer 1967) genetic variability in Serbia was estimated applying cpDNA universal primer pairs. Five different haplotypes were detected in the analyzed sample material from populations in Serbia. The areas in West and Southwest Serbia, with all their specificities, represent an exceptional potential for the co...

UDK 630*23:582.632.2(497.113 Srem) Efekti obnavljanja lužnjaka analizirani su na jednoj trajnoj oglednoj površini (P=0,20 ha), koja je formirana na staništu šume lužnjaka i poljskog jasena (Fraxino angustifoliae-Quercetum roboris Jov. et Tom. 1979, subass. aceretosum-na vlažnijim semiglejnim i suvljim glejnim zemljištima) na području jugozapadnog S...

The present study was performed in an experimental plantation with six 20-year-old black poplar clones in the Section Aigeiros (Duby). The diameter structure models were constructed using the Weibull probability density distribution with three parameters based on periodical measurements of diameters at breast height. The unidentified parameters wer...

Past experience has shown that the application of silcivultural measures to pedunculate oak stands of lessened functional capacity is met with severe restrictions for the achievement of the desired results and goals. This work analyzes the effects of different silci vultural measures in comparative permanent sample plots (P.P. -1 and P.P. -2), unde...

Genetic variability of sessile oak (Quercus petraea agg. Ehrendorfer, 1967) in Serbia is estimated applying cpDNA universal primer pairs that were characterized by a high informative level for chloroplast genome variability assessment in previous investigations. Five different haplotypes were detected in the analyzed sample material from population...

Two adult oak tree groups in northern Serbia, differing in degree of decline, were studied. Measurements of pre-dawn water potential (PwP), nutrient status and radial growth were performed and compared with similar sites in Slovenia. In spite of favourable water conditions and sufficiently high groundwater table, values of PwP between groups were s...

The structure and silvicultural demands of two narrow-leaved ash stands of different origin and age was studied in the Special Nature Reserve "Gornje Podunavlje", in the area protected against floods. The elements of growth and structure in the 38-year-old natural stand in the area of previous wet depressions (dg=24,0 cm, dg20%=33,4 cm, hL=26,1 m,...

The silvicultural-technological procedures in the regeneration of the stands of common oak and narrow-leaved ash with common maple and Tartar maple were researched in the area of Srem. The stands belong to the community of common oak and narrow-leaved ash with common maple and Tartar maple in the area protected against flooding (Fraxino angustifoli...

On permanent sample plots in middle-aged, artificially established, Turkey oak stand, the effects of heavy thinning (S.P.-1) and sanitation cutting (S.P.-2) were analysed on trees and stand increment, 5 and 10 years after cutting at the age of 46 years. Till the age of 56 years, 62% trees incremented on S.P.-1, and 95% trees on S.P.-2, compared to...

The association Seslerio sadlerianae-Ostryetum ass. nov. is a postglatial period relict forest association of the northwestern Croatia. The forests of this association have an antierosion function only, and therefore from the economic aspect they are of no importance at all. However, photosociologically, they are extremely important primarily for u...

Different courses of tree growth in height and diameter in nursery and plantation, immediately after transplanting, cause the difficulties in adaptation of tree growth models. Tree growth models, which do not include the sudden transitions and specificities of nursery growth and in the first years after planting can show errors in the assessment of...

The effect of plantation density on the stem volume development phases of mean trees of Populus x euramericana (Dode) Guinier, cl. I-214 were studied in the test plantation aged 25 years with two different planting densities 4.25x4.25 m (treatment A) and 6.00x6.00 m (treatment B). The modeling of stem volume growth of mean trees enabled the identif...

The effects of selection thinning were analyzed at a permanent sample plot in the artificially established spruce stand aged 32 years, on the site of mountain beech. The state in the 32-year-old stand was as follows: 3911 trees per ha, basal area 57.5 m2ha-1 and volume 378.3 m3ha-1. Selection thinning removed 1378 tree per ha (35.2%) and 110 m3ha-1...

A method of diameter structure modeling was applied in the calculation of plantation (stand) volume of two black poplar clones in the section Aigeiros (Duby): 618 (Lux) and S1-8. Diameter structure modeling by Weibull function makes it possible to calculate the plantation volume by volume line. Based on the comparison of the proposed method with th...

The effects of selection thinning and spontaneous development on beech tree and stand increment were researched in the period 1986-2002. The results show the complexity of the effect of thinning on tree and stand increment. Based on the comparison of growth elements in 2002 and growth elements in 1985 before thinning, the greatest increase of total...

The effects of heavy thinning on tree and stand increment were studied on sample plots in the artificially established Turkey oak stand, aged 51 years. Before thinning, extremely low height and diameter increments were recorded and also the process of revitalization and tree decline. Heavy thinning at the stand age of 46 years removed 38.0% of tree...

The parameters of diameter structure of two black poplar clones in the section Aigeiros Duby (S6-7 and M-1) are presented depending on three different spacings: 3x3 m, 4.25x4.25 m and 6x6 m. Modeling of diameter structure was performed by Weibull’s function of probability distribution. We determined the effect of spacing (density) and clone both on...

The characteristics of biological differentiation of trees are analyzed in medium-aged beech stands in similar site conditions and their effect on tending operations. The stands are similar by origin and by age of dominant trees, but they differ significantly by the characteristics of growth elements. The regularity of biological differentiation of...

We analyzed the process of stand degradation of individual forest ecosystems in the region of the zonal community Tilio-Carpino-Qurcetum robori-cerris Jov. 79 located in the western part of Fruška Gora National Park. Degradation occurred is consequence to regeneration felling and it progressed towards the extinction of oaks, first of all the valuab...

The ontogenetic properties of moesian beech seedlings were analysed in the first vegetation growth period at identical sites, but in different stand conditions based on the divergent values of unique and complex biological characteristics. The seedlings were formed on the deluvium at the site of montane beech forests (Fagetum moesiacae montanum typ...