Template-Type: ReDIF-Article 1.0 Author-Name: J. I. Nirmal Kumar Author-Workplace-Name: P. G. Department of Environmental Science and Technology, Institute of Science and Technology for Advanced Studies and Research (ISTAR), Vallabh Vidyanagar, Gujarat, India Author-Name: R. N. Kumar Author-Workplace-Name: Department of Bioscience and Environmental Science, N. V. Patel College of Pure and Applied Sciences, Vallabh Vidyanagar, Gujarat, India Author-Name: R. Kumar Bhoi Author-Workplace-Name: P. G. Department of Environmental Science and Technology, Institute of Science and Technology for Advanced Studies and Research (ISTAR), Vallabh Vidyanagar, Gujarat, India Author-Name: P. R. Sajish Author-Workplace-Name: P. G. Department of Environmental Science and Technology, Institute of Science and Technology for Advanced Studies and Research (ISTAR), Vallabh Vidyanagar, Gujarat, India Title: Quantification of nutrient content in the aboveground biomass of teak plantation in a tropical dry deciduous forest of Udaipur, India Abstract: This study was designed to evaluate the quantification of the nutrient content of aboveground biomass of teak plantation in a tropical dry deciduous forest of Udaipur, Rajasthan, India. The nutrient contents in the total biomass of teak in the plantation were 165.47 kg/ha N, 20.96 kg/ha P, 35.06 kg/ha K, 49.29 kg/ha Ca, 31.52 kg/ha Mg, 4.27 kg/ha Na, 4.06 kg/ha S and 3.21 kg/ha Cl. In total, 42.93% of the dry matter accounted for crown biomass (leaves, branches, twigs and reproductive parts), which in turn accounts for 60.93% N, 58.63% P, 54.30% K, 51.40% Ca, 62.5% Mg, 53.62% Na, 59.85% S and 60.74% Cl of the aboveground biomass, whereas 57.07% of the dry matter account for trunk biomass (bole bark and bole wood), which in turn accounts for 39.07% N, 41.37% P, 45.70% K, 48.6% Ca, 37.5% Mg, 46.38% Na, 40.15% S and 39.26% Cl. Keywords: Tectona grandis Linn. F., dry matter, aboveground biomass, nutrient concentration, nutrient content Journal: Journal of Forest Science Pages: 251-256 Volume: 55 Issue: 6 Year: 2009 DOI: 10.17221/107/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/107/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200906-0001.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:6:id:107-2008-JFS Template-Type: ReDIF-Article 1.0 Author-Name: M. Rybníček Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Author-Name: P. Čermák Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Author-Name: T. Kolář Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Author-Name: E. Přemyslovská Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Author-Name: T. Žid Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic Title: Influence of temperatures and precipitation on radial increment of Orlické hory Mts. spruce stands at altitudes over 800 m a.s.l. Abstract: Research on the influence of temperatures and precipitation on radial increment was carried out in spruce stands over ninety years old in the surroundings of Anenský vrch in the Orlické hory Mts. at altitudes over 800 m above sea level. To model diameter increment in dependence on climatic conditions, the standard tree-ring and correlation analysis together with the analysis of negative pointer years were used. The diameter increment has a statistically significant correlation with temperatures in July of each year in question. The growth of spruce is also affected to a statistically significant degree by precipitation in July of the previous year and by precipitation in February and March of the year in question. The standard tree-ring chronology shows an obvious decrease in radial increments starting at the beginning of the 1970s and ending at the end of the 1980s. The lowest increments were recorded for 1974, 1980, 1984 and 1986. These years with low increments were also confirmed by the analysis of negative pointer years. In the following period there is an increase in increments, with slight decreases in 1996 and 2000, which, however, according to the analysis of negative pointer years do not demonstrate any significant reduction of increments. Another decrease was recorded starting in 2003 and this lasted until the studied period, i.e. 2007. The current condition of spruce stands is certainly the result of more stressors but it appears that with the current air pollution load the climatic conditions are the factor determining the resulting effect of the synergic influence of the stressors on the stands. Keywords: Orlické hory Mts., tree-ring analysis, spruce, climate, radial increments Journal: Journal of Forest Science Pages: 257-263 Volume: 55 Issue: 6 Year: 2009 DOI: 10.17221/90/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/90/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200906-0002.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:6:id:90-2008-JFS Template-Type: ReDIF-Article 1.0 Author-Name: R. Stojecová Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Author-Name: I. Kupka Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Title: Growth of wild cherry (Prunus avium L.) in a mixture with other species in a demonstration forest Abstract: Wild cherry is one of the noble hardwood species that increase the biodiversity of our forests and at the same time it could increase the income for forest owners. The preconditions for achieving these goals are the high quality of stem and appropriate silvicultural management. This means that wild cherry should occupy the main crown layer in the stand. The height/frequency diagram depicts two groups of wild cherry trees in the stand belonging to dominant/codominant and suppressed tree classes. Height periodic increment (measured between the years 2001 and 2007) is significantly (p < 0.01) different in these two groups confirming that there is no transition chance for the trees from the suppressed group to become a part of the main crown layer and play the role of future crop tree. The same is true of the diameter/frequency diagram which also has a two-peak shape remaining also at the end of the surveyed period. Our result suggests that silvicultural care should be focused only on trees belonging to future crop trees. Keywords: wild cherry, silviculture, stand forming species, stand crown layer, tree classes Journal: Journal of Forest Science Pages: 264-269 Volume: 55 Issue: 6 Year: 2009 DOI: 10.17221/71/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/71/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200906-0003.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:6:id:71-2008-JFS Template-Type: ReDIF-Article 1.0 Author-Name: M. R. Pourmajidian Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran Author-Name: N. E. Malakshah Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran Author-Name: A. Fallah Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran Author-Name: A. Parsakhoo Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran Title: Evaluating the shelterwood harvesting system after 25 years in a beech Fagus orientalis Lipsky) forest in Iran Abstract: Beech (Fagus orientalis Lipsky) is the most industrial commercial tree species among more than 80 broadleaved trees and shrubs in Hyrcanian forests. In this study some of the silvicultural properties of beech were studied under a shelterwood cutting system in a regeneration unit of 25 years old stand in Sangdeh forests of Iran. Tree height, diameter, canopy cover, variety of species, frequency at different stages of growth (seedling, sapling, thicket and pole) and tree density at juvenile phase were recorded in 431 circular 1,000 m2 sample plots before and after shelterwood cutting. Results indicated that tree density in the diameter at breast height (dbh) class of < 20 cm increased during shelterwood cutting. Canopy cover of regeneration unit was 78.5% in 1957, while in 2000 and after the shelterwood cutting it reached 59%. Growing stages of regeneration were 14% sapling, 21% thicket, 24% small pole and 41% pole. The shelterwood method has not been very successful in our study area due to a number of technical and potential problems. Keywords: Fagus orientalis, shelterwood, regeneration unit, silviculture, Hyrcanian forest Journal: Journal of Forest Science Pages: 270-278 Volume: 55 Issue: 6 Year: 2009 DOI: 10.17221/77/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/77/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200906-0004.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:6:id:77-2008-JFS Template-Type: ReDIF-Article 1.0 Author-Name: L. Lehnerová Author-Workplace-Name: Forest Management Institute, Brandýs nad Labem, branch Plzeň, Czech Republic Author-Name: R. Marušák Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Title: Regeneration and game damage in the Krušné hory Mts. assessed on the basis of National Forest Inventory of the Czech Republic Abstract: In 2001-2004 National Forest Inventory was realized in the Czech Republic. A great number of variables was measured giving rise to an extensive information database that can be used to assess the state and development of various quantitative and qualitative dendrometric characteristics. This work presents the results of regeneration state and game damage in the Krušné hory Mts. based on the data from both the National Forest Inventory and the second enlarged measurement carried out after five years that was done in a part of the Fláje preserve and enabled basic comparison with the rest of the area. For the calculation of data acquired in the old and recent measurement standard methodology for processing National Forest Inventory was used. Comparison of data showed that the average number of regeneration individuals dropped by more than a third in the interval of 5 years, as well as the number of plots with regeneration; game damage of regeneration also was lower by 4%. The proportion of individuals damaged by peeling did not change during the investigated period. A significant increase in game damage to regeneration was found in the Fláje preserve. Keywords: National Forest Inventory, game damage, Krušné hory Mts Journal: Journal of Forest Science Pages: 279-292 Volume: 55 Issue: 6 Year: 2009 DOI: 10.17221/99/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/99/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200906-0005.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:6:id:99-2008-JFS Template-Type: ReDIF-Article 1.0 Author-Name: A. Węgiel Author-Workplace-Name: Department of Forest Management, Poznan University of Life Sciences, Poznań, Poland Author-Name: R. Jaszczak Author-Workplace-Name: Department of Forest Management, Poznan University of Life Sciences, Poznań, Poland Author-Name: G. Rączka Author-Workplace-Name: Department of Forest Management, Poznan University of Life Sciences, Poznań, Poland Author-Name: P. Strzeliński Author-Workplace-Name: Department of Forest Management, Poznan University of Life Sciences, Poznań, Poland Author-Name: D. Sugiero Author-Workplace-Name: Department of Forest Management, Poznan University of Life Sciences, Poznań, Poland Author-Name: A. Wierzbicka Author-Workplace-Name: Department of Game Management and Forest Protection, Poznan University of Life Sciences, Poznań, Poland Title: An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland Abstract: Pine stands at fertile sites need conversion into broadleaved or mixed forests. Yet, according to the age of stand, conversion may have different economic results. Therefore, in order to reduce costs of the process, the analysis on the basis of the potential income from wood sale has been done. The aim of the analysis has been to find an optimal date of conversion beginning. The date of conversion beginning has been fixed on the basis of the relation of the value of wood increment from the stands which need conversion to the value of average wood increment from stands conformable to the sites. By this means, three age intervals have been appointed. Keywords: Pinus sylvestris, pine stands, oak stands, forest conversion, forest sites, Polish Lowland Journal: Journal of Forest Science Pages: 293-298 Volume: 55 Issue: 6 Year: 2009 DOI: 10.17221/105/2008-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/105/2008-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-200906-0006.txt Handle: RePEc:caa:jnljfs:v:55:y:2009:i:6:id:105-2008-JFS