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DocumentOther documentEfficiency of total volatile organic compound of climbing plants Ardisia pusilla and Ficus pumila
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.This study was conducted to analyze removal efficiency of total volatile organic and physiological responses of climbing native plants Ardisia pusilla and Ficus pumila. The Hedera helix as a control, plants were investigated the total volatile organic compounds and their corresponding physiological responses with the maximum quantum yield of PSII (Fv/Fm)chlorophyll fluorescence, the vegetation index (the normalized difference vegetation index, NDVI; the simple ratio, SR; the carotenoid reflectance index 1, 2; CRI 1, 2) and physiological activity (the flavonoids and the phenolics). As a result, the removal amount of native plants tended to be lager than Hedera helix (2.973mgm-3h-1m-2 leaf area) and Ficus pumila (4.481mgm-3h-1m-2 leaf area) had more removal than Ardisia pusilla (3.786 mgm-3h-1m-2 leaf area), significantly. The NDVI, SR, and CRI 1, 2 of Ficus pumila and Hedera helix decreased after 2 hours, but there was no difference before and after with pollutants in Ardisia pusilla. In addition, only Ardisia pusilla had the normal range of 0.78 to 0.84 with Fv/Fm. Through this result, it is judged Ardisia pusilla is normally metabolized in plants without negative effects when removing indoor pollutants. Additionally, Ardisia pusilla did not change about phenolic, but the flavonoids contents increased after 2 hours. The physiological activity of Ficus pumila increased from 4 hours and then dereased again at 6 hours. Therefore, the removal of total volatile organic compounds was effective in the Ficus pumila, Ardisia pusilla, Hedera helix order, but in the results of stress and physiological activity of plants after air purification, Ardisia pusilla maintained a normal range than other plants and increased antioxidants. It is considered to be highly useful as an air purification plant due to its low damage. Keywords: Human health and well-being, Climate change, Covid-19, Research, Landscape management ID: 3622900 -
DocumentOther documentThe effects of visit characteristics in urban forest on the individual life satisfaction
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Recently, the importance and effectiveness of the urban forest have been increasing with the quality of life of urban residents. Therefore, the study aims to understand how people use the forest for recreation and determine how the visit characteristics of the urban forest affect Individual Life Satisfaction (ILS). A nationwide survey (n=8,254) was conducted on the visit frequency, proximity to the forest and life satisfaction. To measure ILS, three questions (personal, relative, collective) of COMOSWB (Concise Measure of Subjective Well-being) developed by Seo et al (2011) are used. The analysis shows that people usually visit the forest within 10~30 minutes distance (31.8%) on a weekly basis (24.2%), by walk (41.4%) for exercise (41.0%) and relaxation (32.9%). As a result of the hierarchical analysis between visit characteristics and ILS with controlling demographic variables; the ‘frequency of forest visits (t=4.50**)’ and ‘proximity to the forest (t=2.764**)’ has a positive effect on ILS. In particular, ‘frequency of forest visits(β=0.056)’ has higher level of influence than that of ‘proximity to the forest (β=0.034)’ on ILS. In other words, frequent visits to forests far away from the place of residence can improve individual life satisfaction." The significance of this study is that it statistically determines that the frequency of forest visits and the proximity to the forest are important factors for ILS. Future studies should take into account the various qualitative factors of forest visitation such as vegetation, quantity and types of forest so that it will be possible to contribute to setting up a direction for urban forest development and management. Keywords: Human health and well-being ID: 3484619 -
DocumentOther documentThe interaction between particulate matter (PM) adsorption and leaf gas exchange characteristics of urban trees exposed to fly ash
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Because of their vast surface distribution, external particle reactivity, and leaf characteristics, urban trees can contribute as biofilters, reducing PM pollution. Leaves of trees permit PM to be accumulated, depending on their leaf traits. The impacts of several leaf characteristics on PM accumulation capabilities, such as surface roughness and leaf morphology, have been studied. The change in relative humidity (RH) caused by leaf gas exchanges of urban trees also can be highly related to the removal efficiency of PM because the hygroscopic growth of particle is closely related to PM deposition. Nevertheless, the impacts of leaf gas exchange parameters including stomatal conductance and transpiration rate on PM deposition ability still remain unidentified. The effects of PM pollution on urban plants’ photosynthesis are also not well understood. In this study, we analyzed the correlation between PM accumulation and photosynthesis (Pn), stomatal conductance (gs) and transpiration (Tr) of all the tested urban trees under approximately 300 μg/m3 of fly ash emitted condition and evaluated the increased effect of leaf gas exchange parameters on PM deposition. We also studied whether the inhibiting impacts on the ability of leaf gas exchange is occurred by the blockage and closure of the stomata by using scanning electron microscopy (SEM). The purpose of our research was to better understand the interaction between particulate matter (PM) adsorption and leaf gas exchange characteristics of urban trees. Furthermore, the findings of this study can be used to provide scientific data about the suitability of tree species for urban forests. Keywords: Research, Climate change, Sustainable forest management ID: 3623026
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Book (stand-alone)Technical book打造可持续的粮食体系
创新者手册
2022可持续的粮食体系对于保障子孙后代的粮食安全和饮食健康至关重要。要实现可持续性转型，必须重构众多粮食体系活动，全球各地无数主体正在开展行动。尽管有些转变相对容易，但是要通过转变来推广可持续的消费和生产模式，依旧需要复杂的综合技能。本书面向“可持续的粮食体系创新者”，来自亚洲、非洲、美洲、欧洲的创新人士，他们正领导众多倡议，根据实际情况种植、分享、销售、消费更可持续的食品。本书涵盖的众多实践正通过改变地方粮食体系的组织架构，来提升粮食体系的可持续性。本书按照“选择你自己的冒险故事”的方式来编排，让每位读者，不论是自己读还是跟着互助小组一起读，都能够根据需求定制个性化的学习和行动旅程。本书包含四大创新主题：留住消费者、可持续生产、产品入市和组织有序。 -
Book (stand-alone)General interest book24-hour Global Marathon for Sustainability – Food for Earth (2021) 2022
Also available in:
No results found.The FAO elearning Academy together with Future Food Institute, organized the second edition of the 24-hour Global Digital Marathon for Sustainability entitled: “Food for Earth”, in 2021. The event was a knowledge sharing collaborative initiative, fully aligned with the United Nations Sustainable Development Goals Agenda 2030 and FAO’s Strategic Framework. The Marathon has proven to be an extremely powerful initiative to raise awareness among entrepreneurs, startups, scientists, journalists, young leaders, policymakers, general public, farmers and indigenous peoples on the importance of environmental, economic and social sustainability.The publication aims at gathering the multilingual work sessions spread out across the globe, all focusing on the regenerative power of food systems. Overall, the 2021 Marathon had a fantastic global impact, bringing together more than 160 expert voices, in 30 main work sessions, in English, French, Italian and Spanish, reaching more than 150 000 views worldwide, and a global coverage from over 100 online journals, TV channels and networks. In addition, ministers and government representatives from more than 30 countries contributed and endorsed the event. As a result, participating countries have proposed and committed to implement more than 100 climate actions. -