Template-Type: ReDIF-Article 1.0 Author-Name: Stanislav Vacek Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Anna Prokůpková Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Zdeněk Vacek Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Daniel Bulušek Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Václav Šimůnek Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Ivo Králíček Author-Workplace-Name: Faculty of Science, University of Hradec Králové, Hradec Králové, Czech Republic Author-Name: Romana Prausová Author-Workplace-Name: Faculty of Science, University of Hradec Králové, Hradec Králové, Czech Republic Author-Name: Vojtěch Hájek Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Growth response of mixed beech forests to climate change, various management and game pressure in Central Europe Abstract: The growth, structure and production of mixed beech (Fagus sylvatica L.) forests were analysed in the Broumovsko Protected Landscape Area, Czech Republic. The objective of the paper was to evaluate stand structure, timber production and dynamics of forests with historically different silvicultural practices in relation to climate conditions, management and game damage. The results indicate that scree forests (coppices and coppices with standards) were stands with high-rich species diversity and structure compared to herb-rich beech forests (high forests) with higher timber production. The Norway spruce (Picea abies [L.] Karst.) was the most sensitive tree species compared to low growth variability in European beech. The climate factors had the highest effect on radial growth from June to August. Natural regeneration showed great density potential (13,880-186,462 recruits.ha-1), especially in expansion of maples and European ash (Fraxinus excelsior L.). However, recruits were seriously limiting by damage caused by hoofed game, especially in silver fir (Abies alba Mill.; 53% browsing damage), wych elm (Ulmus glabra Hudson; 51%) and rowan (Sorbus aucuparia L.; 50%). Keywords: stand structure, forest dynamics, radial growth, silviculture, game damage Journal: Journal of Forest Science Pages: 331-345 Volume: 65 Issue: 9 Year: 2019 DOI: 10.17221/82/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/82/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201909-0001.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:9:id:82-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Iryna Ivashchenko Author-Workplace-Name: Uman National University of Horticulture, Faculty of Forestry and Landscape Gardening, Uman, Ukraine Author-Name: Svitlana Adamenko Author-Name: Volodymyr Shlapak Author-Workplace-Name: Uman National University of Horticulture, Faculty of Forestry and Landscape Gardening, Uman, Ukraine Title: Peculiarities of seasonal development and influence of ecological factors on the growth of thuja giant (Thuja Plicata Donn Ex D. Don) in the conditions of introduction in the right-bank forest-steppe of Ukraine Abstract: Generalization and analysis of experimental data concerning peculiarities of passing and duration of various phenological phases of Th. plicata, their consistency with the sums of effective temperatures is provided in the article. Conducted researches based on observations and mathematical processing allowed to reveal the regularity of passing of all vegetative and generative phases in the area of introduction and to reveal the dependence of these processes on ecological factors. It was found that the vegetation period of this species is 151 ± 3 days. Influence of nature and degree of temperature, air humidity and rainfall on the growth of shoots were also determined. It turned out that air temperature has the greatest influence on the growth peculiarities of one-year shoots. Growth of shoots begins after changing of the average daily temperature above +9°C. Culmination of increments is observed in May, when the temperature is 13-18°C. Then, increments are fading with the increase in temperature and decrease in humidity and the second wave of growth occurs in August. Shoots completely finish their growth in September. Precipitation and humidity do not have a significant effect on the growth of shoots. Keywords: phenological observations, plants adaptation, temperature, humidity, precipitation, shoots Journal: Journal of Forest Science Pages: 346-355 Volume: 65 Issue: 9 Year: 2019 DOI: 10.17221/52/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/52/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201909-0002.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:9:id:52-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Eleftherios K. Karapatzak Author-Workplace-Name: Department of Forestry and Natural Environment Management, Eastern Macedonia and Thrace Institute of Technology, Kavala. Mikrochori-Drama, Greece Author-Name: Georgios Varsamis Author-Workplace-Name: Department of Forestry and Natural Environment Management, Eastern Macedonia and Thrace Institute of Technology, Kavala. Mikrochori-Drama, Greece Author-Name: Irene Koutseri Author-Workplace-Name: Society for the Protection of Prespa National Park, Agios Germanos, Prespa, Greece Author-Name: Ioannis Takos Author-Workplace-Name: Department of Forestry and Natural Environment Management, Eastern Macedonia and Thrace Institute of Technology, Kavala. Mikrochori-Drama, Greece Author-Name: Theodora Merou Author-Workplace-Name: Department of Forestry and Natural Environment Management, Eastern Macedonia and Thrace Institute of Technology, Kavala. Mikrochori-Drama, Greece Title: The effect of pollen performance on low seed fertility in a Greek population of Juniperus excelsa Abstract: The Juniperus excelsa (Cupressaceae) forest in northern Greece has been facing a documented severe decline of natural regeneration over the last few years. In order to dissect the physiological components of the low regeneration, pollen originated from different sites as well as from trees of different height was investigated in terms of viability and in vitro germination capacity. In addition, embryo development and viability of the first year immature seeds were further assessed. Pollen was found to present high viability (61.5-93.2%) in all sites and tree height classes. However, pollen germination was quite low (maximum germination percentage recorded was 30.2%). The low pollen germination capacity recorded in trees above 6 m in height was reflected in the subsequent low percentages of successful embryo development and viability found in the produced seeds. These results suggest that low seed fertility in Juniperus excelsa is associated with reduced pollen germination, suggesting a complex regeneration mechanism and is considered an additional step in shedding light on the physiological basis of the low natural regeneration of Juniperus excelsa. Keywords: embryo development, embryo viability, pollen germination, regeneration, seed viability Journal: Journal of Forest Science Pages: 356-367 Volume: 65 Issue: 9 Year: 2019 DOI: 10.17221/42/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/42/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201909-0003.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:9:id:42-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Seyedeh Soma Etemad Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran Author-Name: Soleiman Mohammadi Limaei Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran Author-Workplace-Name: Department of Economics, Geography, Law and Tourism, Faculty of Human Sciences, Mid Sweden University, Sundsvall, Sweden Author-Name: Leif Olsson Author-Workplace-Name: Department of Information Systems and Technology, Faculty of Sciences, Technology and Media, Mid Sweden University, Sundsvall, Sweden Author-Name: Rasoul Yousefpour Author-Workplace-Name: Department of Forestry Economics and Forest Planning, University of Freiburg, Freiburg, Germany Title: Forest management decision-making using goal programming and fuzzy analytic hierarchy process approaches (case study: Hyrcanian forests of Iran) Abstract: The aim of this study is to determine the optimum stock level in the forest. In this research, a goal programming method was used to estimate the optimal stock level of different tree species considering environmental, economic and social issues. We consider multiple objectives in the process of decision-making to maximize carbon sequestration, net present value and labour. We used regression analysis to make a forest growth model and allometric functions for the quantification of carbon budget. Expected mean price is estimated using wood price and variable harvesting costs to determine the net present value of forest harvesting. The fuzzy analytic hierarchy process is applied to determine the weights of goals using questionnaires filled in by experts in order to generate the optimal stock level. According to the results of integrated goal programming approach and fuzzy analytic hierarchy processes, optimal volume for each species was calculated. The findings indicate that environmental, economic and social outcomes can be achieved in a multi-objective forestry program for the future forest management plans. Keywords: multipurpose forest management, fuzzy AHP, harvest scheduling, carbon sequestration Journal: Journal of Forest Science Pages: 368-379 Volume: 65 Issue: 9 Year: 2019 DOI: 10.17221/46/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/46/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201909-0004.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:9:id:46-2019-JFS