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Newly proposed harvest method, branch-cut harvest for Aralia elata extends cold storage life and maintains the quality of edible shoots

XV World Forestry Congress, 2-6 May 2022











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    A plan on how to create and maintain urban forest healing spaces to expand forest benefits in daily life
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Forest welfare services and healing programs allow city dwellers to relax and enjoy leisure time at a relatively low cost. With an increasing demand for such forest healing services, now is the time to construct a robust policy and institutional framework for the creation of ‘Forest Healing Complex’. This paper aims to create a policy and build an institutional framework for the expansion of forest healing services and benefits in daily life.
    This paper emphasizes the necessity of creating ‘Forest Healing Complex’ based on a survey of demand and status of domestic forest healing services, and also examines a plan to introduce the Complex based on the analysis of trends and best practices at home and abroad. Furthermore, candidate sites for the Complex, principles of construction, and standards for siting were specified; facilities and activities to introduce were designed; and operation and maintenance plans were presented. Lastly, policy suggestions to promote forest healing among city dwellers were made as an alternative to creating urban forest healing places. Keywords: Human health and well-being, Sustainable forest management ID: 3622890
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    Production and fuel properties of wood chips from logging residues by timber harvesting methods
    XV World Forestry Congress, 2-6 May 2022
    2022
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    This study calculated the productivity and cost of extraction and processing of logging residues by cut-to-length (CTL) and whole-tree (WT) harvesting methods. In addition, the comparative analysis of the characteristics of wood chip fuel to examine whether it was suitable for the fuel conditions of the energy facility. In the harvesting and processing system to produce the wood chips of logging residues the system productivity and cost of the CTL harvesting system were 1.6 Gwt/SMH and 89,865 won/Gwt, respectively. The productivity and cost of the WT harvesting system were 2.9 Gwt/SMH and 72,974 won/Gwt, respectively. The WT harvesting productivity increased 1.3times while harvesting cost decreased by 18.7% compared to the CTL harvesting system. The logging residues of wood chips were not suitable for CTL wood chips based on International Organization for Standardization (ISO 17225-4:2021) and South Korea standard (NIFoS, 2020), but the quality (A2, Second class) was improved through screening operation. The WT-unscreened wood chips conformed to NIFoS standard (second class) and did not conform to ISO but were improved through screening operation (Second class). In addition to the energy facility in plant A, all wood chips except CTL-unscreened wood chips were available through drying processing. The WT-unscreened wood chips were the lowest at 99,408 won/Gwt. Plants B, C, and D had higher moisture content than plant A, so WT-unscreened wood chips without drying processing were the lowest at 57,204 won/Gwt. Therefore, the production of logging residues should improve with operation methods that improve the quality of wood chips required for applying the variable biomass and energy facility. Keywords: Research, Sustainable forest management ID: 3622432
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    Effect of serial harvesting of shoots on rooting ability of teak clones
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Rejuvenation of shoots through budding and serial harvesting was carried out to produce shoots for rooted cutting of 106 teak clones. 3-month-old budded seedlings were topped and leaf pruned to stimulate secondary shoots that used for rooted cutting. 1-month old secondary shoots were harvested and rooted cutting in non-mist propagators. Number of shoots per stock and rooting ability of each clone were recorded for 6 consequences shoot harvesting at 2 weeks interval. 1 month after propagating showed that rooting ability were high significantly (Pr(>F) = 0.489) difference among clones. 35 clones had high rooting ability averaged more than 60 percent, 56 clones had 40-60 percent, while 15 clones had less than 40 percent. Number of shoots per stock and rooting ability were high significantly affected by order of consequence shoot harvesting. Average number of shoots per stock were 0.85, 0.87, 0.74, 0.88, 0.70 and 0.60 shoots (not every stock plant produce shoot in every harvesting round) while rooting ability were 54.01, 44.37, 19.68, 63.87, 81.90 and 73.63 percent for 1st to 6th shoot harvesting respectively. Number of shoots per stock increased from 1st until 4th cut and then decreased when 5th and 6th cut. Later harvesting trended to increase rooting ability. Keywords: Teak, serial harvesting of shoots, rooted cutting, Rejuvenation, clone ID: 3486299

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