Trajkov, Pande
Preferred name
Trajkov, Pande
Official Name
Trajkov, Pande
Main Affiliation
Email
ptrajkov@sf.ukim.edu.mk
15 results
Now showing 1 - 10 of 15
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Item type:Publication, Machine-learning algorithms evaluation of growing stock prediction, based on inventory and sentinel spectral data on two beech forest sites in Bosnia and Macedonia(2018-10-10); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Coppice Forest Management Planning and the Regeneration Potential of Pure and Mixed Oak Coppice Forests in North Macedonia(Hrvatski Sumarski Institut (Croatian Forest Research), 2019-11-03); ; Nestororvski, Ljupco<jats:p><jats:bold>Background and Purpose:</jats:bold> Coppicing is the most widely used silvicultural system in North Macedonia and coppice forests together with shrubs cover cca. 69% of the forest cover area. Pure and mixed stands of oak coppice forests alone cover about 50% of the total forest area subject to current Forest Management Plans. In general, coppices are routinely managed, especially when coppicing as a system is planned to be continued. However, sustainability can be threatened if attention is not paid regarding the age of trees/stands and the presence of undesired tree species. The purpose of this study was to determine: (1) quantitative and qualitative aspects of planned management activities in oak coppices throughout the country, (2) the resprouting potential of over-mature oak coppices, and (3) their potential for generative regeneration. <jats:bold>Materials and Methods</jats:bold> <jats:bold>: </jats:bold>We analyzed all official forest management plans in the country, in order to assess planned activities and the methods of management. Additionally, 21 experimental plots were set in order to determine the resprouting potential of over-mature (85 to 95 years) coppices of <jats:italic>Quercus petraea</jats:italic> and <jats:italic>Q. frainneto</jats:italic> which previously have been subject of clear-cutting. We took a total count of sprouts on all experimental plots, while generative regeneration seedlings were counted on 4 schematically positioned subplots in each experimental plot. Sprouts and generative seedlings were categorized by height. <jats:bold>Results and Conclusions:</jats:bold> According to the data from forest management plans, coppicing is planned to remain as a management system on 401,636 ha, of the total of 450,975 ha of oak coppice forests. Indirect conversion to high forests is planned on 39,137 ha, while direct conversion with substitution is planned for 10,202 ha. In field trials, resprouting was registered on only 38% of the stools. Generative regeneration was recorded in both oak species in numbers which indicate good potential for conversion of oak coppice stands into high forests by seed felling. However, numerous sprouts of other species ( <jats:italic>Corylus avellana</jats:italic>, <jats:italic>Fraxinus ornus</jats:italic>, <jats:italic>Acer heldreichii</jats:italic>), which reach up to 3 meters in height within two seasons, are potentially dangerous for dominating oak seedlings.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Coppice Forest Management Planning and the Regeneration Potential of Pure and Mixed Oak Coppice Forests in North Macedonia(Hrvatski Sumarski Institut (Croatian Forest Research), 2019-11-03); ; ; Nestororvski, Ljupco<jats:p><jats:bold>Background and Purpose:</jats:bold> Coppicing is the most widely used silvicultural system in North Macedonia and coppice forests together with shrubs cover cca. 69% of the forest cover area. Pure and mixed stands of oak coppice forests alone cover about 50% of the total forest area subject to current Forest Management Plans. In general, coppices are routinely managed, especially when coppicing as a system is planned to be continued. However, sustainability can be threatened if attention is not paid regarding the age of trees/stands and the presence of undesired tree species. The purpose of this study was to determine: (1) quantitative and qualitative aspects of planned management activities in oak coppices throughout the country, (2) the resprouting potential of over-mature oak coppices, and (3) their potential for generative regeneration. <jats:bold>Materials and Methods</jats:bold> <jats:bold>: </jats:bold>We analyzed all official forest management plans in the country, in order to assess planned activities and the methods of management. Additionally, 21 experimental plots were set in order to determine the resprouting potential of over-mature (85 to 95 years) coppices of <jats:italic>Quercus petraea</jats:italic> and <jats:italic>Q. frainneto</jats:italic> which previously have been subject of clear-cutting. We took a total count of sprouts on all experimental plots, while generative regeneration seedlings were counted on 4 schematically positioned subplots in each experimental plot. Sprouts and generative seedlings were categorized by height. <jats:bold>Results and Conclusions:</jats:bold> According to the data from forest management plans, coppicing is planned to remain as a management system on 401,636 ha, of the total of 450,975 ha of oak coppice forests. Indirect conversion to high forests is planned on 39,137 ha, while direct conversion with substitution is planned for 10,202 ha. In field trials, resprouting was registered on only 38% of the stools. Generative regeneration was recorded in both oak species in numbers which indicate good potential for conversion of oak coppice stands into high forests by seed felling. However, numerous sprouts of other species ( <jats:italic>Corylus avellana</jats:italic>, <jats:italic>Fraxinus ornus</jats:italic>, <jats:italic>Acer heldreichii</jats:italic>), which reach up to 3 meters in height within two seasons, are potentially dangerous for dominating oak seedlings.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Impact of Chestnut Blight Disease on Radial Growth of Infected Castanea Sativa Trees(Forestry, Bridge to the Future, 2021-05); ; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Planiranje gazdovanje i obnovitelni potencijal izdanačke čiste i mešovite hrastove šume u Severnoj Makedoniji(2019); ; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Reforestation in Macedonia: History, current practice and future perspectives(Reforesta, 2017-07-01); ; Maletić, VladimirThis paper presents data about forestry and reforestation in the Republic of Macedonia. The country is characterized with great diversity of natural conditions and rich floral and faunal biodiversity Forests in Macedonia cover 38% of its territory. About 71% represent coppiced and degraded and 29% tall forests. Historical, social and natural conditions caused gradual deforestation, forest and land degradation. Foundations of artificial afforestation were laid in the first decade of XX century. First reforestation started already in 1913/14 and continued, with various intensity, in the next decades. In the period between two world wars a foundation of modern forestry was established, as forestry education, scientific work etc., to help dealing with reforestation of waste bare and erosive lands. The most intensive reforestation was performed in 1971-1990 and during the following years significantly decreases. There is room for improving of some aspects of the reforestation, in aim to improve survival and development of the young stands. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Evaluation of the Operational Environment Factors of Nature Conservation Policy Implementation: Cases of Selected EU and Non-EU Countries(MDPI AG, 2019-12-02) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Influence of elevation on some structural elements of Macedonian pine (Pinus peuce Gris.) stands in National Park Pelister in North Macedonia("Hans Em" Faculty for Forest Sciences, Landscape Architecture and Environmental Engineering, Skopje, 2022-06); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Nature conservation versus forestry activities in protected areas - the stakeholders’ point of view(Hrvatsko Sumarsko Drustvo, 2019-08-31) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Relationship Between Some Structural Elements of Macedonian Pine (Pinus peuce Gris.) in Different Elevations in National Park Pelister in North Macedonia(Faculty of Forestry, University of Zagreb, 2023-05-24); Nestorovski, Ljupčo<jats:p>The influence of elevation on the forest development and also on more structural elements is evident. The aim of this paper is to research the impact of elevation on the relationship between diameter at breast height (DBH), tree height (H), crown length (L) and stem volume (V). In the area of the Pelister National Park in North Macedonia, 22 experimental plots (EPs) were established in the even-age Pinus peuce Gris. stands with an average age of 90 years. The EPs were of a circular form and covered an area of 500 m2 each; 6 of them were established at 1150 meter above sea level (m asl), 7 at 1350 m asl and 9 at 1550 m asl. DBH, tree height, and crown length of 481 trees were measured in all EPs. The DBH – H model was prepared in accordance with Prodan, as well as nonlinear (polynomial) regression for the relation between DBH and L and nonlinear (power) regression for the relation between DBH and V. The stem volume was calculated with a formula by Parishko for Pinus peuce Gris. The quadratic mean of DBH, average Loray height, average crown ratio, and the density of the stands were also calculated. The relationship between DBH and H, L, and V was examined with Pearson correlation and root mean square deviation (RMSE). The differences between averages of H, L, and V from the EPs were tested with analysis of variance (ANOVA) with an elevation class (1150, 1350 and 1550 m asl) as single factor. The density of stands was 490, 429 and 409 trees per ha on 1150 m, 1350 m and 1550 m asl, respectively. The average DBH was 39.8 cm, 46.5 cm and 45.5 cm, and Loray height was 23.9 m, 24.1 m and 22.6 m at 1150 m, 1350 m and 1550 m asl, respectively. Crown ratio (CR) pointed out different results on the different elevations, with the average value of 40.5%, 43.7%, and 39.3% at 1150 m, 1350 m, and 1550 m asl, respectively. Differences between average structural elements at different elevations can be confirmed with ANOVA with a significance of p<0.05 and F of 3.4 for H, the significance of p<0.05 and F 3.2 for L data and p<0.05 and F of 9.7 for the value of V. In that way, the regression model for H is higher at a lower elevation, the tree has a longer crown length at lower elevation and also has a bigger volume at lower elevation. From the results, it can be concluded that the elevation has an influence on the relationship between DBH on the one hand and H, L and V as structural elements on the other hand. It can be said that at higher elevation trees have a smaller average height, DBH, and volume and have longer crown length than trees at lower elevation.</jats:p>