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ArticleJournal articleImpacts of the national forest rehabilitation plan and human-induced environmental changes on the carbon and nitrogen balances of the South Korean forests
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The carbon (C) balance is a key to the climate regulation role of forests, and the nitrogen (N) balance affects forest productivity, ground and surface water quality, and the emission of N2O. Humans have impacted the C and N balances, but quantification of the responses of forests to human activities is limited. This study aimed to quantify the impacts of the long-term national forest rehabilitation plan and the contribution of the increase in air temperature, CO2 concentration, and N deposition on the C and N balance of the South Korean forests during 1973–2020 by using a biogeochemical model. The C and N balance increased from 0.20 to 4.30 Mg C ha–1 year–1 and from 0.20 to 17.4 kg N ha-1 year-1, respectively. This led to the whole South Korean forests to newly store 825 Tg C and 3.04 Tg N after the national forest rehabilitation plan. The increase in air temperature, CO2 concentration, and N deposition contributed –11.5, 17.4, and 177 Tg C for the newly stored C stock, respectively, and –25.4, 8.90, and 1,807 Mg N for the newly stored N stock, respectively. This study would provide references on the benefits of forest rehabilitation for the C and N balance and for future forest rehabilitation efforts. Moreover, our findings improve the understanding of the impacts of human activities on the C and N balance. Keywords: Carbon, Nitrogen, South Korean forests, Climate change, Human impacts ID: 3622951 -
DocumentOther documentEffects of forest experience activities on the change of happiness and nature-friendly attitudes on young children
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Nowadays, environmental damage has reached a serious state due to urbanization and industrialization, and with rapid economic growth based on capitalism, infants are gradually moving away from nature and living in artificial structures. They have been suffering from physical, mental stress and psychological disabilities since infancy due to various problems such as parents' high intellectual desire, changes in family members, and collapse of family. The purpose of this study was to investigate the psychological effects of the forest experience activities of 10 sessions (one time a week/2 hours) for young children. Forty infants (6 to 7 years old) participated in the forest experience activities (10 sessions, once a week/2 hours, a total of 10 weeks) held at the National Center for Forest Education, Daejeon (Korea). To examine the psychological effects before and after the participation, the happiness (parent relationships, peer relationships, cognition and achievement, immersion, spirituality, emotion, health, life satisfaction) and nature-friendly attitudes of the children (interest and affection for animals and plants, respect for life, preference for the natural environment, protection of nature) were measured. As a result of analyzing psychological indicators, all nine sub-factors of infant happiness improved, and overall infant happiness increased statistically significantly from 85.12 before participation to 99.91 after participation. In the case of nature-friendly attitudes, the nature protection item improved statistically significantly from 9.50 before participation to 11.42 after participation. It was confirmed that the 10 sessions forest experience activities were effective in enhancing the happiness of infants and improving the nature protection item of nature-friendly attitudes. Therefore, forest experience activities can be usefully utilized as a method of psychological health care for infants. Keywords: Human health and well-being ID: 3481876 -
DocumentOther documentComparison of characteristics of anthropogenic volatile organic compounds (AVOC), biogenic volatile organic compounds (BOVC), and weather environment in forest, urban forest and urban
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Introduction
This study was conducted to scientifically identify the trends of healing factor in forests, urban forests, and urban areas to help people choose leisure activities.
Method
From 2019 to 2020, 30 kinds of biogenic volatile organic compounds (BVOCs), 5 kinds of anthropogenic volatile organic compounds (AVOCs), including toluene, and 3 kinds of weather conditions(temperature, humidity, wind speed) were analyzed at forest welfare facilities such as the National Forest Healing Center (MH: Masil Healing Forest Road, MD: Moon Drami Road), urban forest (SF: Seoul Forest), and urban (GS: Gwanghwamun Square). Weather measurements were made from a.m.8 to p.m.18 using MWM-P5 and analyzed using GC/Mass-TD (thermal desorption system) of BVOCs and AVOCs.
Result
The number of BVOCs generated was the highest at 254.73pptv at the MH, followed by 105.64pptv at the SF, 91.65 pptv at MD and 44.35pptv at the GS. AVOCs were the highest at 3.89ppbv in the GS, followed by 2.40ppbv in SF, 0.44ppbv in MH and 0.43ppbv in MD. The discomfort index(temperature humidity index : THI), calculated by temperature and humidity, was lower in forests than in urban areas. On average, the wind speed was higher in the order of the GS, SF, MD, MH.
Conclusion
Forests had higher BVOCs than urban, and AVOCs on average were lower. Also, Forests maintained a more pleasant weather environment than urban areas. The difference in AVOCs appears to be the result of tree species and location. BVOCs appear to have been measured high in heavy traffic urban areas, and the weather environment is believed to be the result of differences in the level of crown densities caused by plants. Through this study, we found that forests are better in terms of air quality and comfort than in urban areas. This can be used as a standard for choosing leisure activities in anticipation of forest healing effects. Keywords: Human health and well-being ID: 3483887
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Book (stand-alone)GuidelineLes Directives sur le droit à l’alimentation: quinze années de mise en œuvre
Bilan des avancées en matière de réalisation du Programme 2030
2019Les Directives sur le droit à l’alimentation fournissent des orientations pratiques sur la façon de mettre en œuvre le droit à une alimentation adéquate dans un large éventail de domaines politiques et programmatiques, à l’aide d’une approche fondée sur les droits de l’homme. Depuis l’adoption des Directives sur le droit à l’alimentation, la FAO et ses partenaires ont créé une multitude d’outils, renforcé les capacités en la matière et animé des dialogues multipartites dans le monde entier. L’objectif de concrétisation du droit à l’alimentation pour tous est cependant encore loin d’être atteint – plus de 820 millions de personnes souffrent encore aujourd’hui de faim chronique. Cette rétrospective de quinze ans sur les Directives sur le droit à l’alimentation nous permet de comprendre ce qui a fonctionné dans le passé et pourquoi, où se situent les goulots d’étranglement et comment optimiser les actions des gouvernements et de leurs partenaires dans le cadre de la lutte contre la faim et la malnutrition. -