Template-Type: ReDIF-Article 1.0 Author-Name: Michal Daniš Author-Workplace-Name: Department of Engineering, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Jindřich Neruda Title: Evaluation of the potential amount of dendromass left in beech stands of the Little Carpathians after intentional felling and its economic assessment Abstract: The paper deals with the determination of the amount of logging residues including merchantable timber volume (brush) left in the beech stands for further use. Logging residues were recorded in all types of intentional felling starting with intentional improvement felling up to 50 years and ending with intentional regeneration felling. The potential amount of biomass left was divided into the share of brush and the share of small wood. The parameter was monitored for 3 years and all measured values were then statistically evaluated and related to 1 m3 of intentional felling in beech stands. A partial goal of this publication is characterization of economic impacts of the proposal for processing the recorded volume of logging residues left in the beech stands on the forest branch in Smolenice. The economic impacts are characterized in two proposed and mutually compared scenarios. The first scenario considers framework contractors for logging works with their own machines, i.e. by assignments, as a mediation of service invoiced for the assumed amount (m3) forwarded to the roadside landing, with the ownership of the forwarded dendromass belonging to Lesy SR (Forests of the Slovak Republic). Then, the dendromass is sold from the roadside landing to customers who are going to transport and process it at their own expense. The second scenario considers sales of assumed amounts of left dendromass including brush to customers who will provide for its transport and processing on the identified roadside landing within a set deadline under obligation to return the site to its original condition if there is possible damage. In this case, Lesy SR would be only a control body supervising labour quality and set-up technological procedures. Keywords: European beech, logging residues, economic analysis, analysis of use, wood chips Journal: Journal of Forest Science Pages: 247-257 Volume: 67 Issue: 6 Year: 2021 DOI: 10.17221/142/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/142/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202106-0001.txt Handle: RePEc:caa:jnljfs:v:67:y:2021:i:6:id:142-2020-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Sandro Sacchelli Author-Workplace-Name: Department of Agriculture, Food, Environment and Forestry, University of Florence, Italy Author-Name: Costanza Borghi Author-Workplace-Name: Department of Agriculture, Food, Environment and Forestry, University of Florence, Italy Author-Name: Gianluca Grilli Author-Workplace-Name: Economic and Social Research Institute, Sir John Rogerson's Quay, Dublin, Ireland Author-Workplace-Name: Trinity College Dublin, Dublin, Ireland Title: Prevention of erosion in mountain basins: A spatial-based tool to support payments for forest ecosystem services Abstract: This paper presents a spatial-based decision support system (DSS) to assist public and private forest managers in the analysis of potential feasibility in payments for forest ecosystem services (PES) for the prevention of soil erosion. The model quantifies the maximum willingness to pay (WTP) of managers of a reservoir to prevent soil loss. The minimum willingness to accept (WTA) of forest owners for the activation of a private market is also computed. The comparison of WTP and WTA identifies the forest area where PES are ideally feasible with additional potential for compensation to enable the schemes. The DSS highlights forest idiosyncrasies as well as local socio-economic and geomorphological characteristics influencing PES suitability at a geographic level. The potential applications and future improvements of the model are also discussed. Keywords: environmental payments, forest management, funding mechanism, soil erosion, spatial analysis Journal: Journal of Forest Science Pages: 258-271 Volume: 67 Issue: 6 Year: 2021 DOI: 10.17221/5/2021-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/5/2021-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202106-0002.txt Handle: RePEc:caa:jnljfs:v:67:y:2021:i:6:id:5-2021-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Radmir Iksanov Author-Workplace-Name: Federal State Budgetary Educational Establishment of Higher Education, Bashkir State Agrarian University, Ufa, Russia Author-Name: Olga Khalikova Author-Workplace-Name: Federal State Budgetary Educational Establishment of Higher Education, Bashkir State Agrarian University, Ufa, Russia Author-Name: Igor Vladimirov Author-Workplace-Name: Federal State Budgetary Educational Establishment of Higher Education, Bashkir State Agrarian University, Ufa, Russia Author-Name: Ravil Gizzatullin Author-Workplace-Name: Federal State Budgetary Educational Establishment of Higher Education, Bashkir State Agrarian University, Ufa, Russia Author-Name: Regina Baiturina Author-Workplace-Name: Federal State Budgetary Educational Establishment of Higher Education, Bashkir State Agrarian University, Ufa, Russia Author-Name: Vitaliy Kovshov Author-Name: Aigul Selezneva Author-Workplace-Name: Federal State Budgetary Educational Establishment of Higher Education, Bashkir State Agrarian University, Ufa, Russia Author-Name: Sofya Khasanova Author-Workplace-Name: Federal State Budgetary Educational Establishment of Higher Education, Bashkir State Agrarian University, Ufa, Russia Title: Forestry violations as a global issue of legal regulation in the field of forest control and supervision: the Krasnodar territory and the Republic of Bashkortostan case study Abstract: Control and supervision activities in the field of forest management are a type of activity of state authorities to detect, prevent forest violations. The purpose of this study is to analyse the dynamics and nature of violations in the forest sector on the example and in comparison of such regions of Russia as the Krasnodar territory and the Republic of Bashkortostan. The research methodology is selected taking into account the characteristics of the object under study. With the assistance of employees of the environmental inspectorate, search operations were organized in the areas where the greatest amount of forest damage occurs in the studied regions. The authors concluded that one of the reasons for the existing problems is the lack of interest of the state in the development of this sector of economy. The paper focuses on specific types of forest violations and the problems of their prevention. The authors believe that illegal logging belongs to the most common and socially dangerous forest violations. The article concludes that when adopting new regulations for control and supervisory activities in the field of forest management, the legislator must take into account requirements of administrative reform, regulatory guillotine, and risk-based approach. Keywords: control and supervision activities, forest use, forest offence, illegal logging, regulatory guillotine, smuggling of forest products Journal: Journal of Forest Science Pages: 272-284 Volume: 67 Issue: 6 Year: 2021 DOI: 10.17221/99/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/99/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202106-0003.txt Handle: RePEc:caa:jnljfs:v:67:y:2021:i:6:id:99-2020-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Raju Bista Author-Name: Michelle Mohr Author-Workplace-Name: Department of Earth Science and Geography, California State University Dominguez Hills, Carson, California, USA Author-Name: David Saldaña Author-Workplace-Name: Department of Earth Science and Geography, California State University Dominguez Hills, Carson, California, USA Author-Name: Gabriel Angulo Author-Workplace-Name: Department of Earth Science and Geography, California State University Dominguez Hills, Carson, California, USA Author-Name: Parveen K. Chhetri Author-Workplace-Name: Department of Earth Science and Geography, California State University Dominguez Hills, Carson, California, USA Title: Tree-ring climate response of Jeffrey pine in the Cascade Creek Watershed, Northern California Abstract: Understanding the forest response to ongoing climate change is crucial in forest management strategies under anticipated climate adversity. To understand the retrospective growth dynamics of Jeffrey pine (Pinus jeffreyi Grev. & Balf.), tree-ring chronology from the subalpine forest in the Lake Tahoe Basin, California was correlated with air temperature, precipitation, and Palmar Drought Severity Index (PDSI). The years 1757, 1782, 1886, 1859, 1876, 1920, 1929-30, 1977, 1988-89, 2001-02, 2008, and 2014 were some of the years with noticeable low growth. There was robust growth in 1747-49, 1792, 1828, 1866-68, 1913, 1969, 1984, 1998, and 2011. Ring width index (RWI) and basal area increment showed a recent growth increase. Climate-growth response analysis revealed the growth-inhibiting influence of the hot and dry summer. More pronouncedly, warm and wet winter was found to be conducive to tree growth in the following year. A significant growth correlation with the previous year climate (stronger with PDSI) and its absence in current spring may be suggestive of potential growth stimulation by predicted warmer and longer growing season in the future. However, since the RWI chronology consisted mostly of mature trees and because the old cambial age tends to have signal divergence, further studies incorporating younger trees and cohabitant species would provide deeper insights into the growth-climate response. Keywords: basal area increment, drought, growth-climate correlation, radial growth, ring width index Journal: Journal of Forest Science Pages: 285-297 Volume: 67 Issue: 6 Year: 2021 DOI: 10.17221/191/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/191/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202106-0004.txt Handle: RePEc:caa:jnljfs:v:67:y:2021:i:6:id:191-2020-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Tamás Ábri Author-Workplace-Name: Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary Author-Workplace-Name: Forest Research Institute, National Agricultural Research and Innovation Centre, Püspökladány, Hungary Author-Name: Zsolt Keserü Author-Workplace-Name: Forest Research Institute, National Agricultural Research and Innovation Centre, Püspökladány, Hungary Author-Name: Fruzsina Szabó Author-Workplace-Name: Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary Author-Name: Károly Rédei Author-Workplace-Name: Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary Title: Structure of black walnut (Juglans nigra L.) stands on sandy soils in Hungary Abstract: Understanding the various processes and relationships that take place in forest ecosystems is generally possible only through long-term observations. This is especially true of the biological production of forests, through the in-depth exploration of their structure. In Hungary the black walnut (Juglans nigra L.) is one of the most valuable exotic tree species, mainly because of its very valuable wood, with fine tissues and unique colour, for furniture industry. Generally, the species is established by manual seeding, and can also be regenerated well by coppice shoots, but not by natural seeding. Black walnut regularly produces seeds from the age of 25-30 years and its rotation age is 70-80 years. It is also used outside forests due to the very decorative stem and crown shapes. In this paper, out of the stand structure factors, the relationships between age and height (r2 = 0.7205), age and diameter (r2 = 0.7719), age and number of stems per ha (r2 = 0.3485) as well as between diameter and number of stems per ha (r2 = 0.4595), all considered important for cultivation technology, were examined (based on the data collected in 34 black walnut stands, age of 7 to 67 years). We also analysed the diameter distributions in two black walnut stands with tending operations, reporting them as a case study. Its future role may be increased mainly on sandy soils of better quality, therefore the more accurate exploration of the structure of black walnut stands growing under such conditions can be considered as gap-filling. Keywords: Juglandaceae, stand structure, growing technology Journal: Journal of Forest Science Pages: 298-305 Volume: 67 Issue: 6 Year: 2021 DOI: 10.17221/205/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/205/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202106-0005.txt Handle: RePEc:caa:jnljfs:v:67:y:2021:i:6:id:205-2020-JFS