Template-Type: ReDIF-Article 1.0 Author-Name: Viktoriia Lovynska Author-Workplace-Name: Department of Parks and Gardens, Faculty of Agronomy, Dnipro State Agrarian and Economic University, Dnipro, Ukraine Author-Name: Petro Lakyda Author-Workplace-Name: Education and Research Institute of Forestry and Landscape Park Management, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine Author-Name: Svitlana Sytnyk Author-Workplace-Name: Department of Parks and Gardens, Faculty of Agronomy, Dnipro State Agrarian and Economic University, Dnipro, Ukraine Author-Name: Ivan Lakyda Author-Workplace-Name: Education and Research Institute of Forestry and Landscape Park Management, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine Author-Name: Yuriy Grithan Author-Workplace-Name: Department of Parks and Gardens, Faculty of Agronomy, Dnipro State Agrarian and Economic University, Dnipro, Ukraine Author-Name: Anotoliy Hetmanchuk Author-Workplace-Name: Department of Forest and Garden, Eastern European National University by Lesya Ukrainka, Lutsk, Ukraine Title: Stem production of Scots pine and black locust stands in Ukraine's Northern Steppe Abstract: Abstract: The research paper presents the results of the assessment of the annual stem production of Scots pine (Pinus sylvestris L.) and black locust (Robinia pseudoacacia L.) stands within the Northern Steppe of Ukraine. The research team has developed two- and three-factor regression models for assessing the live biomass stocks for the fractions of the wood and bark of the stems of the Scots pine and black locust stands. The paper also presents the dependences of the live biomass of the components of the stems of the stands on their selected biometric parameters. The direct positive correlation between the fractions of the wood, bark, and stem in total with the factors of age, mean diameter, mean height and stand density for both the studied species has been identified. The results include the distribution of the total stem production of the Scots pine and black locust stands by the state forestry enterprises of the Dnipro region. The mean annual stem production of Scots pine is characterised by lower values (stem wood -2.91 t.ha-1.yr-1, stem bark -0.38 t.ha-1.yr-1) compared with the investigated species - black locust with the stem wood 4.94 t.ha-1.yr-1 and stem bark 1.70 t.ha-1.yr-1. Keywords: Pinus sylvestris L., Robinia pseudoacacia L., current annual increment, allometric models, age structure Journal: Journal of Forest Science Pages: 461-471 Volume: 65 Issue: 12 Year: 2019 DOI: 10.17221/92/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/92/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201912-0001.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:12:id:92-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Saeid Satari Yuzbashkandi Author-Workplace-Name: Department of Agricultural Economics, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran Author-Name: Amir Mehrjo Author-Workplace-Name: Department of Agricultural Economics, Faculty Agricultural Sciences and Natural Resources, Sari University, Sari, Iran Title: Estimating the recreational values of forest park using the contingent valuation method (case study: Kabudval Forest Park, Golestan Province of Iran) Abstract: Forest parks are the main tourism sources in Iran. Growing population, traditional patterns changing, urban environmental contamination and emergent need of leisure times highlighted the importance of this issue. This study aimed to estimate the willingness to pay (WTP) and non-market values of Kabudval Forest Park of Golestan province. For this purpose, the contingent valuation (CV) method based on the maximum likelihood logit regression model was used. The required data were obtained from 152 visitors to the park that were randomly selected in different seasons. Results indicated that the average of WTP for each individual to protect the park was calculated to be 34,850 Rials. Also, considering the total area of the park to be 109 hectares and 400,000 annual visitors, the recreational value of each hectare has been obtained 12,787,400 Rials annually. Also, the elasticities of income, education, age, and household size variables showed a significant effect on the WTP for the recreational use of the aforementioned study area. The location of the Negarestan storage dam and the Kabudval full moss waterfall in this park has increased the attractiveness of this park compared to other forest parks. Keywords: Logit model, recreational value, forest ecosystems, willingness to pay Journal: Journal of Forest Science Pages: 472-480 Volume: 65 Issue: 12 Year: 2019 DOI: 10.17221/95/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/95/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201912-0002.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:12:id:95-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Mehdi Zandebasiri Author-Workplace-Name: Department of Forestry, Behbahan Khatam Alanbia University of Technology, Behbahan, Khuzestan Province, Iran Author-Name: Hrald Vacik Author-Workplace-Name: Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences (BOKU), Institute of Silviculture, Peter Jordan, Vienna, Austria Author-Name: Daniel Etongo Author-Workplace-Name: James Michel Blue Economy Research Institute, University of Seychelles, Anse Royale, Seychelles Author-Name: Yasmin Dorfstetter Author-Workplace-Name: Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences (BOKU), Institute of Silviculture, Peter Jordan, Vienna, Austria Author-Name: Javad Soosani Author-Workplace-Name: Department of Forestry, Lorestan University, Khorram Abad, Iran Author-Name: Mehdi Pourhashemi Author-Workplace-Name: Forest Research Division, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran Title: Application of time-cost trade-off model in forest management projects: The case of Oak decline project Abstract: Oak decline has been observed periodically in the different parts of the world. We conducted this study to evaluate the project control in this phenomenon. In this paper, the project control methods have proposed to be useful tools to deal with oak decline. The aim of the study is twofold: (i) define and schedule a set of activities and determine times for those activities in the Control of Forest Decline Project (CFDP) using the Project Evaluation and Review Technique (PERT) method; (ii) apply the Critical Path Method (CPM) within the context on how to reduce the project time by increasing operating costs and crashing the activities. In crisis management, "golden time" is defined for doing activities and controlling the crisis, which has a greater role than other times. The analysis confirmed that the problem of forest decline is an ecological problem and its root lies in participatory management with the local community. We also found that the time crashing is not economically efficient to the CFDP except for two activities: public information and stakeholder analysis. Keywords: Forest die-back, PERT (Project Evaluation and Review Technique) method, CPM (Critical Path Method) method, linear programming, stakeholder analysis, public information, crisis management Journal: Journal of Forest Science Pages: 481-492 Volume: 65 Issue: 12 Year: 2019 DOI: 10.17221/65/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/65/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201912-0003.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:12:id:65-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Mohadeseh Ghanbari Motlagh Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran Author-Name: Sasan Babaie Kafaky Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran Author-Name: Asadollah Mataji Author-Workplace-Name: Department of Forestry, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran Author-Name: Reza Akhavan Author-Workplace-Name: Research Institute of Forests and Ranglands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran Title: Calculation of the aboveground carbon stocks with satellite data and statistical models integrated into the climatic parameters in the Alborz Mountain forests (northern Iran) Abstract: The forest ecosystems of northern Iran in the Alborz Mountains with a wide distribution range have variations in the composition and types of the plants, soil, structure, carbon stocks and climatic conditions. This study investigated the use of a satellite database and climatic parameters in estimating the carbon reserves. Three regions were selected for the distribution range of these forests. The data of 4 climatic parameters (MAP, MHR, MAE and MAT) were modelled based on the relationship with an elevation gradient. 5 spectral vegetation indices (RVI, NDVI, SR, NDGI, DVI and TVI) and near-infrared band (NIR) extracted from the satellite data and the aboveground carbon data of these forests were modelled based on a regression analysis. Finally, the best model of the relationship between the climate variables and the carbon stocks and the satellite indices was obtained from the multivariate linear regression equation and the R2 coefficient. Accordingly, the most influential climatic parameters on the carbon stocks of these forests were precipitation, temperature, and also the most significant indices were NDVI, RVI and NIR band. This research is an attempt to model the calculations of the aboveground carbon in the forests of northern Iran in relation to the climatic parameters using satellite imagery. Keywords: climate, carbon trees, broadleaf forests, spectral indices Journal: Journal of Forest Science Pages: 493-503 Volume: 65 Issue: 12 Year: 2019 DOI: 10.17221/107/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/107/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201912-0004.txt Handle: RePEc:caa:jnljfs:v:65:y:2019:i:12:id:107-2019-JFS