UDK: 630*222:582.632.2 (497.6 Sarajevo)           582.632.2:630*5(497.6 Sarajevo) The paper represents a methodological approach in categorization of coppice beech stands in Sarajevo Canton area in relation to their ecological, productive, structural and silvicultural characteristics. For the collection of necessary data, method of temporary experimental surfaces, systematically allocated in squares 200 meters distant from each other has been used, in accordance to design of simple systematic sample. Concentric circles whose radius depend on tree diameter has been used as sample units (STOJANOVİĆ & DRİNİĆ, 1975). Data have been conducted in 659 locations. Stands have been categorized in three categories in relations to predefined criteria of categorization based on stand environment, productiveness, structure, economic value and fostering needs. For each of the categories, average units of basic productive indicators of the stand have been determined: number of trees, basal area, volume and volume increment per year for marked and unmarked, as well as same indicators of marking timber volume and the intensity of felling. Statistical significance of difference between the indicators has been tested by the method of variant analysis. Based on the results, indirect conversion has been recommended for the first stand category, direct and combined conversion for second one, and third category didn't need conversion because they have predominantly protective character

UDK: 630*52:630*24(234.422 Igman) This paper analyses the dynamics of diameter structure and height curves as the main indicators of a simple stand structure, uneven-aged multi-storied fir and spruce stands in the management unit „Igman“ where selective felling is applied based on the principle of positive selection. The data for analysis was collected by periodical measurement during fifty years on two permanent sample plots, forest sections 43 and 58. It has been determined that during the observation period there had been a change in diameter structure in the sense of increase in the proportion of trees in the lower, and decrease in higher diameter classes as well as the increase of tree height in the complete interval of empirical data. It has been concluded that due to selective felling, with higher diameter classes trees included, conditions have been created for the occurrence of new and the development of the existing young crop; diameter structures of a shape characteristic for even-aged stands have gradually assumed the shape characteristic for selective stands. Thus, due to the increase of competition among the trees of lower diameter classes and the felling of lower height and lower quality trees of higher diameter classes, there has been an increase in the height of trees of the same diameter. 

UDK: 630*52/*56:528.8(234.422 Igman) Information about quantitative and qualitative forest attributes are the base for successful forest planning and management. Forest inventories collect number of data used for different estimations from large (management unit level) to small (forest stand) scales. Then, control sampling has to be done in order to confirm regularity of terrestrial work. Such sample becomes data source too.  Recent approach for forest characterization includes all available information as sources for additional non-standard insight. Here were used available data about wood volume and increment from control sample for high forest on mountain Igman. Also, recent Landsat TM image from vegetation period was available and used in this research. Here is applied k nearest neighbor’s estimation method. Five nearest neighbors and Euclidian distance is chosen for estimation and mapping. Biases for all forest attributes were non-significant. Obtain results show non significant differences between means and observed and estimated distributions of wood volume and increment. It is estimated higher mean wood volume and increment of broadleaves while means for conifers and totals are lower. That higher wood volume and increment is estimated in all diameter classes for broadleaves while lower quantities are estimated for conifers. Spatial mapping presents distribution of wood volume and increment respecting variability of vegetation in high forest on Igman.

This paper compares the forest structure, regeneration and distribution of dead wood in a virgin forest remnant and a close-to-nature managed beech–conifer mixture situated on Grmeč Mountain in Western Bosnia. The investigations were carried out in a 1 ha permanent sample plot and 35 circular plots (20 m radius) in the virgin forest and in 17 circular plots (25 m radius) in managed forests. The number of trees in the managed forest was significantly (p = 0.05) higher than that in virgin forest and the distribution of the number of trees per diameter classes had a decreasing trend, but with a different shape in the virgin forest compared to the managed stands. In the lower diameter classes, the stock volume recorded in virgin forest was half of that in the managed forest, whilst for higher diameter classes the cumulated volume of the growing stock was almost double in virgin forest. The young crops had a significantly lower presence in the virgin forest and a larger volume of dead wood was identified in the virgin forest than in managed stands. The study results are important in assessing the consequences of close-to-nature management on the forest structure and regeneration when compared to the condition in virgin forests.

UDK 630*52:582.475(497.6) U radu se analiziraju debljinske i visinske strukture jednodobnih nenjegovanih šumskih zasada crnog bora različite starosti i uslova staništa na karbonatnim supstratima u Bosni. Utvrđene su prosječne procentualne raspodjele broja stabala po debljinskim i visinskim klasama za starosne klase širine 10 godina u okviru pojedinih bonitetnih razreda staništa i njihovi numerički parametri (aritmetička sredina, varijaciona širina, standardna devijacija, koeficijent varijacije, koeficijenti asimetrije i zaobljenosti). Dobijeni rezultati pokazuju veliki varijabilitet prečnika i visine stabala, odnosno intenzivno debljinsko i visinsko diferenciranje stabala ispitivanih zasada.

This paper analyzis the diameter and height structures of even aged stands of Austrian pine (Pinus nigra Arn.) on carbonate substrates in Bosnia of different age and site classes. Average percentile distribution of numbers of trees based on diameter and height classes for the age classes of 10 years within particular site classes and their numerical parameters (average value, width of variability, standard deviation, coefficient of variability, kurtosis and skewness) were established. The obtained results show the large variability in diameter and height of trees, that is, a strong differentiation of diameter and height of trees of tested stands.

UDK 630*222:582.632.2(497.6 Sarajevo)          581.92:582.632.2(497.6 Sarajevo) U Bosni i Hercegovini od niskih (izdanačkih šuma), najveću površinu zauzimaju niske šume bukve. Ove šume su nastale pod snažnim antropogenim uticajem lokalnog stanovništva koje je sjeklo bukvu za ogrijev, a ne sistemskim gospodarenjem niskim šumama. Florističko - vegetacijske karakteristike kao i diverzitet ovih šuma je malo istraživan.

UDK 630*23/.24:582.632.2(497.6 Sarajevo)          630*111/.114:582.632.2(497.6 Sarajevo) Panjače bukve u BiH zauzimaju površinu od 351.000 hektara, što je oko 13 % od ukupne površine šuma i šumskog zemljišta. Proizvodne mogućnosti ovih šuma nisu potpuno iskorištene pa je potrebno uzgojnim zahvatima poboljšati njihovo stanje. U ovom radu analizirane su stanišne karakteristike panjače bukve na lokalitetu "Musići" kod Sarajeva. U 60-godišnjoj panjači bukve postavljene su (u proljeće 2007. godine) dvije eksperimentalne plohe na kojim su provedena dva načina prorjeđivanja i to: selektivna prorjeda i selektivna prorjeda sa čišćenjem zaostalih i loših izbojaka sa panja. Stanišne i strukturne karakteristike imaju odlučujući značaj kod odabira načina prorjeđivanja panjača u cilju prevođenja u viši uzgojni oblik. Prorjedu treba prilagoditi stanju u kojem se panjača nalazi. Selektivna prorjeda uz uklananje zaostalih i loših izbojaka sa panja treba biti osnov za buduće mjere njege u mlađim panjačama bukve.

Abstract: In Bosnia and Herzegovina from the all coppice forests the largest area occupy coppice beech forests. These forests are formed under strong anthropogenic influence of the local population which is used beech for fuel, and not as a system of management of coppice forests. Floristic vegetation characteristics and diversity of these forests is little explored. For this paper analyzed the characteristics and vegetation diversity coppice beech forests in the Canton of Sarajevo.

Coppice beech forests in BiH covers an area of 351,000 ha which is about 13 % of the total area of forests and forest land. Production capacity under these forest habitats are not fully utilized and it is necessary silvicultural operations to improve their condition. This work investigates the structural characteristics of the habitat and coppice beech forest before and after thinning the example Musići tree coppice forests at the site near Sarajevo. The 60 year coppice beech forest were set up two experimental plots on which they are carried out in two ways thinning: selective thinning and selective thinning with cuting residual trees from stump. Habitat and structural characteristics have a decisive importance in choosing the way of translation tree coppice forests in the form of higher breeding. Thinning need to accommodate the situation in which the tree coppice forests located. Selective thinning with cuting residual trees in the lower tree floor should be given a basis for future measures in the care coppice beech.