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DocumentCollection and characterization of native plant seeds for forest restoration
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The global seed industry is worth 51 trillion won, and the Korean seed industry is 800 billion won. Among them, the seed industry in the forest sector accounts for 2.5% of the total, but information on plants used for forest restoration is insufficient. Currently, the supply of seeds for plant material for forest restoration is insufficient. However, the number of important plant seeds being imported continues to grow. Therefore, a lot of research and development of the forest restoration material industry are needed to secure the seeds of native plants for forest restoration. In particular, for systematic seed production and supply, a species selection strategy and seed germination characteristics analysis are required for plant material for forest restoration. This study was carried out in accordance with the 'Notice on the Supply of Native Plants and Natural Materials for Forest Restoration (20.09.07; Korea Forest Service). We collected native plant seeds to restore damaged forests and conducted a characterization study on the collected species. As a result of seed collection, 138 points of 49 species were collected from Jeollanam-do, Gyeongsangnam-do, and Jeju. Among them, 5 gymnosperms and 133 angiosperms were included. Voucher specimens and image data information of the collected species were accumulated. As a result of seed characterization, Quercus acuta Thunb. and Carpinus turczaninowii Hance. showed a lot of abortive grains, but most showed high full seed rate. According to the results of the tetrazolium test, most species except for Quercus acuta Thunb, Machilus thunbergii S. et Z. and Carpinus turczaninowii Hance had vitality. In particular, Mallotus japonicus (L.f.) Müll.Arg. and Raphiolepis indica var. umbellate showed the highest vitality as both the full seed rate and germination rate were over 50%. This study will be useful as data for collecting native plant resources and establishing a seed supply system for restoration of damaged forests. Keywords: Biodiversity conservation ID: 3623076 -
ArticleBitternut hickory (Carya cordiformis(Wangenh) K. Koch), a successful non-native tree species in the north-west of Romania
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The most abundant and most uniformly distributed of all the hickories (Carya spp.), growing throughout the eastern United States, bitternut hickory was introduced to Europe after 1689. It was used as ornamental species especially in parks and dendrological gardens as well as forest species in some European countries (e.g. Austria, Belgium, France, Germany).
In Romania, it was planted exclusively in parks and dendrological gardens, with the exception of Sacueni Forest District. In this area, the first three individuals of bitternut hickory were planted in 1900, reaching nowadays breast diameters between 72.3 cm and 79.2 cm and heights over 25 m. Using seeds collected from these trees and seedlings produced in the local nursery, the species has expanded after 1957 and the total area of thirteen stands including bitternut hickory reaches nowadays 39.21 ha, with some interesting characteristics:
- it is found in monocultures as well as mixed stands (proportion between 10 percent and 90 percent) with different broadleaved tree species, both native (pedunculate oak Quercus robur L., small-leaved linden Tilia cordata L., sycamore Acer pseudoplatanus L.) and exotic (black walnut Juglans nigra L., northern red oak Quercus rubra L., pin oak Quercus palustris Muenchh., and black cherry Prunus serotina Ehrh.);
- bitternut hickory grew quickly in youth and reached mean diameters between 18 cm (25-30 years of age) and 32 cm (60 years) and mean heights between 16 m (25-30 years of age) and 25 m (60 years). These dimensions are similar to or even bigger than the associated species, both native and exotic;
- the species regenerates easily by seed and its seedlings have a higher shade tolerance than most of its associates, even though bitternut hickory is considered as intolerant of shade;
- it is a good self-pruner and epicormic branching is not a problem;
- it has never been affected by any damaging agent and is wind-firm, owing to its dense root system, with a pronounced taproot. Keywords: Sustainable forest management, Adaptive and integrated management ID: 3471954 -
DocumentThe value of utilization and prospect of forest healing ingredients for native plants in Korea
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The perception of forests in Korea has changed with the times. In the past the perception of pursuing primary products such as wood was strong, but recently it has been changed to a way to pursue public interest values including recreation and healing. As the perspective of forest is changed, this study has purpose to examine the value and prospect of native plants, one of forest resources, as a resource for forest healing by linking them with food closely related to life. In Korea, a total of 205 Family, 1,157 Genus, 4,940 species of native plants are distributed. This is significantly higher than the UK (2,000species) or Denmark (1,500species), and when compared to the number of species per unit area, it is more valuable because it has a variety of species than of Japan or China. Antioxidant activity search is the most commonly used method to measure the functionality of native plants, and various studies are being conducted in this regard. Various native plants in Korea are used not only for medicinal purposes but also for edible purposes, and 71 family, 547 species edible plants are known. However, there are about 70 kinds of native plants that are actually distributed and edible in the market, which is only about 12.8% of the total. However, as interest in healthy food has increased recently, food ingredients using native plants are attracting attention again. Therefore, it is necessary to study for the application of food ingredients and the verification of the effect of native plants. The effects of native plants in Korea are being verified effects not only for antioxidant but also for health functionality. In the future, more diverse studies are needed to re-examine the edible value of native plants from a forest healing perspective and to spread them widely. Keywords: Human health and well-being, Food systems ID: 3486571
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