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Characteristics of species and strength of sawn timber mainly distributed in Korea

XV World Forestry Congress, 2-6 May 2022










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    System and characteristics of forest trail in South Korea
    XV World Forestry Congress, 2-6 May 2022
    2022
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    As an improvement in the national income and leisure time drives more people to visit the forest trail for the purpose of recreation. One of the representative characteristics of establishment of forest trail in South Korea is that it focuses on the Baekdudaegan, which is the ridgelines of Korean Peninsula and ranges from Mt. Baekdu to Mt. Jiri, and Jeongmaek which is the continuous ridgelines of Baekdudaegan over 100km. The Sangyeongpyo, which is a traditional classification system of Korean Peninsula, demonstrates the concepts of Baekdudaegan in Korean Peninsula and Jeongmaek. However, only South Korea section of Baekdudaegan is available to walk on due to the situation of Korean Peninsula despite that it ranges between the entire Korean Peninsula. The total length of forest trail placed on the South Korea section of Baekdudaegan and the 9 sections of Jeongmaek is 701 km and 2,154 km, respectively. ‘Forest cultural recreation Act’ defines the Korean forest trail as a walkway established on the forest for the activities such as hiking, tracking, leisure sports, visit or recreation, healing. In the past, the most of Korean forest trail provided the basic vertical hiking culture based on Baekdudaegan mountain system. However, as the increase in recreational activities and needs for different activities in forest trail raised recently, the use type of forest trail has ranged from enjoying the surrounding area of mountain to leisure sports, healing and enjoying the scenery. Based on the change in the use type of forest trail, in 2011, the Act specified the concepts of forest trail into 6 types such as trails for hiking, tracking, forest leisure sports, visit or recreation, healing. 10 thousand forest trails in total are currently established in Korea and their length sum up to 40 thousand km. 93.5% of these trails are for hiking and they occupy 81.8% of the total length of all forest trail in South Korea. Keywords: Human health and well-being ID: 3484927
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    Prediction of distribution changes of carpinus laxiflora and C. tschonoskii based on climate change scenarios using MaxEnt model in the Republic of Korea
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Hornbeams (Carpinus spp.), which are widely distributed in South Korea, are recognized as one of the most abundant species at climax stage in the temperate forests. Although the distribution and vegetation structure of the C. laxiflora community have been reported, little ecological information of C. tschonoskii is available. Little effort was made to examine the distribution shift of these species under the future climate conditions. This study was conducted to predict potential shifts in the distribution of C. laxiflora and C. tschonoskii in 2050s and 2090s under the two sets of climate change scenarios, RCP4.5 and RCP8.5. The MaxEnt model was used to predict the spatial distribution of two species using the occurrence data derived from the 6th National Forest Inventory data as well as climate and topography data. It was found that the main factors for the distribution of C. laxiflora were elevation, temperature seasonality, and mean annual precipitation. The distribution of C. tschonoskii, was influenced by temperature seasonality, mean annual precipitation, and mean diurnal rang. It was projected that the total habitat area of the C. laxiflora could increase by 1.05% and 1.11% under RCP 4.5 and RCP 8.5 scenarios, respectively. It was also predicted that the distributional area of C. tschonoskii could expand under the future climate conditions. These results highlighted that the climate change would have considerable impact on the spatial distribution of C. laxiflora and C. tschonoskii. These also suggested that ecological information derived from climate change impact assessment study can be used to develop proper forest management practices in response to climate change. Keywords: Carpinus laxiflora, C. tschonoskii, Climate change, Distribution change, MaxEnt ID:3619140
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    Species recovery strategy using genetically appropriate material of Abies koreana, an endangered fir species that is endemic to Korea
    XV World Forestry Congress, 2-6 May 2022
    2022
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    In this study, we present a strategy of restoring genetic diversity for conservation of Abies koreana, an endemic species vulnerable to climate change, and especially a species recovery strategy for small populations with high threat of extinction. Species recovery strategy is a restoration method that maintains population vitality and resilience by utilizing genetically appropriate materials to adapt well to future environmental conditions. Korean fir (Abies koreana E.H.Wilson), which is a Korean endemic species that has been designated as an endangered species by the International Union for Conservation of Nature. There are three large and six small populations with a relatively large and small number of individuals, respectively. According to the genetic analysis of the large-scale population of A. koreana, the genetic diversity of each group is relatively high and remains stable to date. According to the spatial genetic structure analysis for selecting the restoration materials to avoid inbreeding depression, it is appropriate to select Mt. Jirisan population at intervals of about 30 meters between individuals and Mt. Hallasan group of about 15 meters. A total of six small populations of A. koreana in Korea, have a distribution area of less than 1ha. Small population with a restrict distribution has high risk of extinction due to low number of individuals, low genetic diversity and low seedlings in the population, so it is necessary to restocking method. Selecting the restoration materials for the small population needs to consider the genetic diversity and uniqueness of the natural population while enhancing their adaptability and resilience against environmental change. In order to restore genetic diversity of small populations to maintain the resilience, an approach is needed to evaluate the genetic similarity between the populations in Korea and to introduce appropriate restoration materials considering genetic diversity. Keywords: Biodiversity conservation, Genetic resources, Climate change, Research ID: 3622907

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