Template-Type: ReDIF-Article 1.0 Author-Name: A. Alijanpour Author-Workplace-Name: Faculty of Natural Resources, University of Urmia, Iran Author-Name: A.B. Shafiei Author-Workplace-Name: Faculty of Natural Resources, University of Urmia, Iran Author-Name: R. Latify Author-Workplace-Name: Faculty of Natural Resources, University of Urmia, Iran Title: Effect of planting interval and soil type on qualitative and quantitative characteristics of poplar (Populus nigra) plantations in Diwandareh (Kurdistan province, western Iran) Abstract: We investigated the effects of planting interval and soil type on qualitative and quantitative characteristics of seven poplar (Populus nigra) plantations with 1 × 1 m and 2 × 2 m planting intervals in Diwandareh. Parameters including diameter at breast height (DBH), total height, crown height, stem height, number of suckers and crown vitality were measured and compared regarding soil characteristics and planting intervals. A transect method with 10% sampling intensity was used for collecting data. Results showed significant differences in the qualitative and quantitative characteristics of poplar trees between planting intervals and soil physical characteristics. An increase of the interval decreased total height and crown height, while stem height, number of suckers and crown vitality of poplar trees increased. But DBH of poplar trees did not increase in these areas. Vegetative characteristics showed the strongest correlation with physical properties of soil rather than with the chemical ones. Soil properties had higher effects on quantitative and qualitative characteristics of the studied stands in comparison with planting intervals. Keywords: plantation, stand, soil properties, growth, height, diameter Journal: Journal of Forest Science Pages: 89-95 Volume: 60 Issue: 3 Year: 2014 DOI: 10.17221/9/2014-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/9/2014-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201403-0001.txt Handle: RePEc:caa:jnljfs:v:60:y:2014:i:3:id:9-2014-JFS Template-Type: ReDIF-Article 1.0 Author-Name: K. Matějka Author-Workplace-Name: IDS, Prague, Czech Republic Author-Name: J. Leugner Author-Workplace-Name: Forestry and Game Management Research Institute, Jíloviště-Strnady (Prague), Opočno Research Station, Opočno, Czech Republic Author-Name: V. Krpeš Author-Workplace-Name: Faculty of Science, University of Ostrava, Ostrava, Czech Republic Title: Phenotype features in juvenile populations of Picea abies and their growth Abstract: The young populations of Norway spruce (Picea abies) can be evaluated in terms of both variability in the quantitative characteristics and share of different phenotypes according to the needle types. A set of two-years-old seedlings produced in the nursery and several populations of natural regeneration in the Krkonoše Mts. and the Krušné hory Mts. were evaluated using the needle anatomy, size and colour. The tree height growth was measured simultaneously. The growth was related to some needle features. Four basic anatomical types of needles were distinguished in the mountain Norway spruce seedlings: flat needles, intermediate needles, inversion type and sclerotized needles. The growth of natural regeneration populations is mainly correlated with the needle width and the length/width ratio. The population variability according to growth can be related to the variability of some phenotype characteristics. This relationship differs in natural regeneration and planting. Keywords: anatomy, height growth, needle types, population variability, seedlings Journal: Journal of Forest Science Pages: 96-108 Volume: 60 Issue: 3 Year: 2014 DOI: 10.17221/77/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/77/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201403-0002.txt Handle: RePEc:caa:jnljfs:v:60:y:2014:i:3:id:77-2013-JFS Template-Type: ReDIF-Article 1.0 Author-Name: P. Dalir Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, University of Guilan, Somehsara, Iran Author-Name: R. Naghdi Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources, University of Guilan, Somehsara, Iran Author-Name: V. Gholami Author-Workplace-Name: Department of Range and Watershed Management, Faculty of Natural Resources, University of Guilan, Somehsara, Iran Title: Modelling of forest road sediment in the northern forest of Iran (Lomir Watershed) Abstract: Forest roads are the most important ways of access; nevertheless, they are the main source of sediment production. The delivered sediment by forest roads causes environmental problems and pollution of water resources. This study has been done to present a model for estimating the sediment yield of forest road using a multiple regression analysis on the Caspian southern coasts (north of Iran, Lomir watershed). For this purpose, 45 wood dams were created and their sediment volume (dependent variable) was measured. The following independent variables were estimated: road length, road width, road slope, vegetation cover, height of cut slope and road age. Then, a regression analysis was done using SPSS software to present a linear model. In the next step, the accuracy and capability of the presented model were considered and validated using the model for estimating the wood dam sediment. The results showed that road length and road width have significant effects in sediment generation. Also, the presented model can estimate the forest road sediment in northern Iran. Keywords: wood dams, SPSS, multiple regression, culvert Journal: Journal of Forest Science Pages: 109-114 Volume: 60 Issue: 3 Year: 2014 DOI: 10.17221/91/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/91/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201403-0003.txt Handle: RePEc:caa:jnljfs:v:60:y:2014:i:3:id:91-2013-JFS Template-Type: ReDIF-Article 1.0 Author-Name: F. Lazreg Author-Workplace-Name: Department Agronomy, Laboratory of Research on Biological Systems and Geomatics (L.R.S.B.G), University of Mascara, Mascara, Algeria Author-Name: L. Belabid Author-Workplace-Name: Department Agronomy, Laboratory of Research on Biological Systems and Geomatics (L.R.S.B.G), University of Mascara, Mascara, Algeria Author-Name: J. Sanchez Author-Workplace-Name: Department of Biology and Geology, University of Almeria, Almeria, Spain Author-Name: E. Gallego Author-Workplace-Name: Andalusian Centre for the Assessment and Monitoring of Global Change (CAESCG), University of Almeria, Almeria, Spain Author-Name: B. Bayaa Author-Workplace-Name: Faculty of Agriculture, University of Aleppo, Aleppo, Syria Title: Pathogenicity of Fusarium spp. associated with diseases of Aleppo-pine seedlings in Algerian forest nurseries Abstract: In northwestern Algeria, the production of Aleppo pine (Pinus halepensis Mill.) seedlings in four nurseries is hindered by the damping-off disease. Results obtained indicated that Fusarium spp. are commonly found on diseased seedlings, in most containers and bare-root nurseries. Twenty-one isolates of Fusarium, belonging to seven species, were previously isolated from diseased seedlings, and identified based on their morphological and molecular characteristics and their sequences had been deposited in NCBI-Genbank. These isolates were tested for their pathogenicity to local Aleppo pine seeds. The highest inhibition was observed with F. redolens and F. solani, with 75 and 69.3%, respectively. The root growth inhibition of the Aleppo pine seedlings was significantly different for each isolate. The influence of various isolates of Fusarium spp. on seed germination, shoot and root length and vigour index was significantly different. The disease incidence caused by F. redolens and F. solani was 91 and 90%, respectively. Keywords: Pinus halepensis, Fusarium redolens, Fusarium solani, damping-off Journal: Journal of Forest Science Pages: 115-120 Volume: 60 Issue: 3 Year: 2014 DOI: 10.17221/65/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/65/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201403-0004.txt Handle: RePEc:caa:jnljfs:v:60:y:2014:i:3:id:65-2013-JFS Template-Type: ReDIF-Article 1.0 Author-Name: V. Šrámek Author-Workplace-Name: Forestry and Game Management Research Institute, Strnady, Jíloviště, Czech Republic Author-Name: V. Fadrhonsová Author-Workplace-Name: Forestry and Game Management Research Institute, Strnady, Jíloviště, Czech Republic Author-Name: L. Jurkovská Author-Workplace-Name: Forestry and Game Management Research Institute, Strnady, Jíloviště, Czech Republic Title: Ca/Al ratio in Norway spruce fine roots on monitoring plots in the Czech Republic Abstract: This article is focused on the evaluation of the Al/Ca ratio in fine roots of Norway spruce on the plots belonging to the ICP Forests monitoring programme in the Czech Republic. In total 122 fine root samples were collected from twenty plots from two soil layers of 0-10 and 10-20 cm and then analysed. The mean Ca/Al molar ratio in the fine roots from the 0-10 cm topsoil layer is higher than in the lower 10-20 cm soil layer, which corresponds to the distribution of fine roots - on average 80% of fine roots were found in the topsoil. 6% of the samples in the lower soil layer strongly indicate aluminium stress (Ca/Al < 0.1) and 30% of the samples may demonstrate the adverse effects of aluminium (< 0.2). On the other hand, no relationship was found between the Ca/Al ratio in the fine roots and the fine root biomass and vitality or crown condition. These results suggest that the potential aluminium toxicity is not the driving factor of the crown condition in Norway spruce and the Ca/Al ratio itself does not pose a risk to forest health in the region. Keywords: aluminium toxicity, forest health, soil acidification Journal: Journal of Forest Science Pages: 121-131 Volume: 60 Issue: 3 Year: 2014 DOI: 10.17221/85/2013-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/85/2013-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201403-0005.txt Handle: RePEc:caa:jnljfs:v:60:y:2014:i:3:id:85-2013-JFS