Template-Type: ReDIF-Article 1.0 Author-Name: Richard PEK Author-Name: Marcel RIEDL Author-Workplace-Name: Department of Forestry and Wood Economics, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Vilém JARSKÝ Author-Workplace-Name: Department of Forestry and Wood Economics, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Innovative approaches in forest management - the application of a business model to designing a small-scale forestry strategy Abstract: The strong market competition forces forest owners to find innovative approaches to forest management, and business models are becoming integral parts of successful innovations and business strategies. This paper deals with the applicability of a business model (as an innovation tool) for small forest owners. The main objectives were to design a business model applicable in the forestry sector and to find the innovative business alternatives for the small-scale forest owner reflecting the local situation (in a case study in the Czech Republic). The extended business model CANVAS was used. The embedded data was evaluated on the software developed at the Savonia University in Finland where business opportunity and competitive advantage were the main evaluation criteria. As a result, a proposed strategy was advised to be followed. The biggest added value of the extended CANVAS model is giving an objective and unbiased evaluation of the situation of small forest owners. The business model design proved a usable and applicable tool to be used in forest management, for the research has shown that the quantitative data should be complemented by qualitative research in order to get the complex view. Keywords: resources, innovation, rural economy, competitive advantage, business opportunities, extended business model CANVAS Journal: Journal of Forest Science Pages: 393-400 Volume: 63 Issue: 9 Year: 2017 DOI: 10.17221/17/2017-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/17/2017-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201709-0001.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:9:id:17-2017-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Elena N. NAKVASINA Author-Workplace-Name: Department of Forest Management and Soil Science, Higher School of Natural Science and Technology, Northern (Arctic) Federal University named after M.V. Lomonosov, Arkhangelsk, Russia Author-Name: Nadezhda A. DEMINA Author-Workplace-Name: Department of Forest Management, Northern Research Institute of Forestry, Arkhangelsk, Russia Author-Name: Nadezhda A. PROZHERINA Author-Workplace-Name: Department of Population Ecology, N. Laverov Federal Center for Integrated Arctic Research, Arkhangelsk, Russia Title: Evaluation of survival and growth of Picea abies (L.) H. Karst. and Picea obovata Ledeb. provenances in the north of Russia Abstract: Adaptation variability and ecological plasticity in the "genotype-environment" system of 22 provenances of Picea abies (Linnaeus) H. Karsten, Picea obovata (von Ledebour) and their introgressive hybrids growing within the Russian Plain were studied. Provenances grow in provenance trials located in the Arkhangelsk, Vologda Regions, and Komi Republic. For assessment of provenances in the "genotype-environment" system, the ranking method was used. Based on a complex ranking index (survival, diameter, height) two local areas of the most adaptive geographic races of P. abies, P. obovata and their hybrid forms were distinguished. In the south-western part of the Russian Plain the best provenances are represented by P. abies and related hybrids from Karelia, Vologda, Leningrad, and Pskov Regions. In the north-eastern part they are represented by P. obovata and its hybrids from the Komi Republic, Arkhangelsk, Sverdlovsk Regions. Provenances of local P. abies and related hybrid forms demonstrate high ecological plasticity on their growing in harsh climatic conditions of the north outside of the species distribution area. Keywords: spruce, provenances test, ranking, adaptation variability Journal: Journal of Forest Science Pages: 401-407 Volume: 63 Issue: 9 Year: 2017 DOI: 10.17221/74/2017-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/74/2017-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201709-0002.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:9:id:74-2017-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Gholam Reza GOODARZI Author-Workplace-Name: Research Institute of Forests and Rangelands, Markazi Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Arak, Iran Author-Name: Vahide PAYAM NOOR Author-Workplace-Name: Department of Silviculture and Forest Ecology, Faculty of Forest Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran Author-Name: Fatemeh AHMADLOO Author-Workplace-Name: Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran Title: Effects of nanoparticle treatments on propagation of Prunus mahaleb L. by seed Abstract: We examined the effects of nanoparticles (NPs) of TiO2 and ZnO at 0.5, 1, 2 or 3% concentrations for 10, 20, and 30 min in stratified seeds of Prunus mahaleb Linnaeus. Then, seedlings produced were irrigated to field capacity with NP solutions at control, 1, 5, and 10% concentration for 7 months in the greenhouse conditions. Treating seeds at 1% concentrations of TiO2-NPs for 20 min resulted in the highest germination percentage (65%) and at concentrations of 3% for 30 min it showed the lowest germination percentage (13%). The highest total seedling height was obtained after exposure of seeds to 0.5% TiO2-NPs for 10 min. Irrigation of seedlings with TiO2-NPs at the concentration of 1% seems to be a suitable method how to increase their total height, survival, and total dry weight. A decrease in the relative water content and an increase in proline were observed in response to the application of high levels of NPs. Keywords: germination percentage, growth characteristics, proline, relative water content, seed dormancy, survival Journal: Journal of Forest Science Pages: 408-416 Volume: 63 Issue: 9 Year: 2017 DOI: 10.17221/18/2017-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/18/2017-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201709-0003.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:9:id:18-2017-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Fatemeh AHMADLOO Author-Workplace-Name: Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran Author-Name: Masoud TABARI KOUCHAKSARAEI Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Tehran, Iran Author-Name: Gholam Reza GOODARZI Author-Workplace-Name: Research Institute of Forests and Rangelands, Markazi Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Arak, Iran Author-Name: Azadeh SALEHI Author-Workplace-Name: Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran Title: Effects of gibberellic acid and storage temperature on the germination of hawthorn seeds Abstract: This study investigated methods to overcome seed dormancy in Crataegus pseudoheterophylla Pojarkova seeds. Seeds with and without endocarps were treated with gibberellic acid (GA3) at different concentrations and four storage temperatures. Then they were stratified in an alternate temperature regime. The amount of absorbed water in seeds with endocarps was monitored by measuring the fresh weight of seeds for 0, 24, 48, 72, and 96 h of imbibition. The electrical conductivity (EC) and the percentage of water uptake by seeds stored for 12 months at laboratory temperature, in a refrigerator, in a freezer, and in freeze-thaw conditions were measured. The highest germination (59.7%) was recorded in seeds without endocarps treated with 3,000 mg.l-1 GA3 and stored either in a laboratory or a refrigerator (32.7-35.3%). All treatments of seeds without endocarps where GA3 was applied showed statistically higher percentages of germination than the control. Seeds with endocarps stored at refrigerator temperature imbibed water up to 44.3% with increasing imbibition periods, whereas the amount of seeds that absorbed water in freezer and freeze-thaw conditions was almost the same. The tests showed the highest EC during storage in the freezer, with the lowest water uptake and viability in seeds stored during the freeze-thaw process. Keywords: Crataegus spp., electrical conductivity, endocarp, seed dormancy, water uptake Journal: Journal of Forest Science Pages: 417-424 Volume: 63 Issue: 9 Year: 2017 DOI: 10.17221/24/2017-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/24/2017-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201709-0004.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:9:id:24-2017-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Saeid SHABANI Title: Modelling and mapping of soil damage caused by harvesting in Caspian forests (Iran) using CART and RF data mining techniques Abstract: Controlling the soil damage caused by forest harvesting has a key role in forest management due to its effect on forest dynamics and productivity, mainly through modifying the physical, mechanical, and hydrological context of soil. This study was conducted to evaluate the soil damage susceptibility in one of the Caspian forests, Iran. For this purpose, two data mining techniques including classification and regression tree (CART) and random forest (RF) were applied. A total of 224 soil damage locations were identified primarily from field surveys. Then, 10 conditioning variables were produced in GIS. For model performance, the outputs of the analyses were compared with the field-verified soil damage locations. Our results show that slope degree, soil type, and slope aspect had the highest weight on soil damage, in the order of their appurtenance. Additionally, according to the relative operating characteristics curve, RF is a more suitable prediction model for soil damage zoning compared to CART. In summary, the findings of this study suggest that soil damage susceptibility mapping is an effective technique for Caspian forests, Iran. Keywords: forestry operations, hazard zoning, spatial prediction, timber skidding, tree ensemble techniques Journal: Journal of Forest Science Pages: 425-432 Volume: 63 Issue: 9 Year: 2017 DOI: 10.17221/125/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/125/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201709-0005.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:9:id:125-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Juraj ČERŇAVA Author-Name: Ján TUČEK Author-Workplace-Name: Department of Forest Management and Geodesy, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovak Republic Author-Name: Milan KOREŇ Author-Workplace-Name: Department of Forest Management and Geodesy, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovak Republic Author-Name: Martin MOKROŠ Author-Workplace-Name: Department of Forest Management and Geodesy, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovak Republic Title: Estimation of diameter at breast height from mobile laser scanning data collected under a heavy forest canopy Abstract: Mobile laser scanning (MLS) is time-efficient technology of geospatial data collection that proved its ability to provide accurate measurements in many fields. Mobile innovation of the terrestrial laser scanning has a potential to collect forest inventory data on a tree level from large plots in a short time. Valuable data, collected using mobile mapping system (MMS), becomes very difficult to process when Global Navigation Satellite System (GNSS) outages become too long. A heavy forest canopy blocking the GNSS signal and limited accessibility can make mobile mapping very difficult. This paper presents processing of data collected by MMS under a heavy forest canopy. DBH was estimated from MLS point cloud using three different methods. Root mean squared error varied between 2.65 and 5.57 cm. Our research resulted in verification of the influence of MLS coverage of tree stem on the accuracy of DBH data. Keywords: mobile mapping system, clustering, point cloud, circle fit Journal: Journal of Forest Science Pages: 433-441 Volume: 63 Issue: 9 Year: 2017 DOI: 10.17221/28/2017-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/28/2017-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201709-0006.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:9:id:28-2017-JFS