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ArticleDeveloping simultaneously modeling systems for improving the reliability of tree aboveground biomass- carbon and its components estimates for Machilus odoratissimus nees in the central highlands, Viet Nam
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Machilus odoratissimus Nees is a multi-purpose species with, high economic value and environmental protection, so this tree species is commonly used in agroforestry models. In plantation management, it demands modeling systems that predict accurately aboveground biomass- carbon and its components. At the same time, the developed models support computing carbon accumulation of forest trees in agroforestry models for the program of reducing emissions from deforestation and forest degradation (REDD). Twenty-two 300 m2 plots were measured within the full range of 1 to 7 ages in the Central Highlands of VietNam. A total of 22 quadratic mean diameter trees were destructively sampled to obtain a dataset of the dry iomass/carbon of the stem (Bst/Cst), bark (Bba/Cba), branches (Bbr/Cbr), leaves (Ble/Cle), and total tree aboveground biomass/carbon (AGB/AGC). We examined the performance of weighted nonlinear models fit by maximum likelihood and weighted nonlinear seemingly unrelated regression (SUR) fit by generalized least squares for predicting tree aboveground biomass- carbon and its components. The simultaneous estimation of AGB/AGC and its components produced a higher reliability than that of the models of tree components and the total developed separately. The selected forms of modeling systems were AGB = Bst + Bba + Bbr + Ble = a1×(D2H)b1 + a2×(D2H)b2 + a3×Db3 + a4×(D2H)b4 and AGC = Cst + Cba+ Cbr + Cle = a1×(D2H)b1 ++2×(D2H)b2 + a3×Db3 + a4×(D2H)b4 (where D is the diameter at breast height and H is the height of the tree). Keywords: Agroforestry, Machilus odoratissimus, seemingly unrelated regression (SUR), tree biomass- carbon ID: 3472953 -
ArticleIncreasing land cover by promoting agroforestry-based tree planting to sustain community livelihood under various social forestry schemes in Indonesia
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The high challenges and expectations in the management of Indonesian Tropical Forests to achieve the community welfare, forest sustainability and sustainable development goals, demands proper management in optimizing the use of forest resources to meet the high dependence of community needs on the forest. The pressure on forests is reflected in the deforestation that occurs as an indication of the various dependencies of the community on forests to meet their daily needs. In this regard, Agroforestry is a potential silvicultural recipe as a solution to restore degraded land and forest that can gain balance ecological, economic and social benefits. This paper aims to provide information on plant growth performance and survival rate in the establishment of agroforestry plot for a total 34 hectares in three schemes of Social Forestry in Indonesia, namely Paru Village Forest (VF)–West Sumatra, Cempaka Forestry Partnership (FP)–Lampung, Tuar Tana Community Forestry (CF)– East Nusa Tenggara, in collaboration between Forestry and Environment Research, Development and Innovation Agency with the Asian Forest Cooperation Organization (AFoCO). It was conducted by planting 26 plant sp Intensive Artificial Regeneration with planting distance of 8x8 m and 5x5 m depend on plant species. The collected data covered for survival rate and height measurement. Growth Percentage was observed at ages 1, 6, 12 and 18 months after plan participation which looks high in maintaining their crops while survival rate in Tuar Tana CF was low enough only 43,2% due to the drough in this semi-arid region which affect the plant growth, eventhough the farmers have high effort in maintaining their crops. Keywords: Mixed Tree planting, Reforestation, Community Forestry, Village Forest, Forestry Partnership ID: 3486429 -
DocumentThe current situation and perception analysis of forest carbon offset scheme in Korea
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.As the international community pays attention to the absorption of carbon using forests, Korea has been operating the Forest Carbon Offset Scheme since 2013. However, monitoring performance to be performed for certification is sluggish, and it was found that there is a limit to sustainable operation. This study aims to analyze current situation and perception of Forest Carbon Offset Scheme in Korea to suggest problems and direction of improvement.
Through literature surveys and interviews, in-depth interview questions were selected, and people in charge of transaction-type projects were interviewed in-depth. The Survey was conducted on people in charge, and the characteristics of perception were analyzed through descriptive statistical and frequency analysis.
The main expected effect was profit generation, and the overall perception of the expected effect decreased. Hindrances were in the order of "Concern about transaction possibilities", "Complexity of certification procedure", "Lack of competent professionals", "Lack of support costs for project planning", "Administrative delay" and "Lack of project operators’ expertise". Also, there were some issues in need of improvement in three aspects. First, there were issues with “Complexity of certification procedure”, “Lack of competent professionals”, “Lack of support costs for project planning”, and “Administrative delay” in system and operation. Second, there were issues with “Concern about transaction possibilities” in profitability. Third, there were issues with “Lack of project operators’ expertise”, “Gap between business purpose and expectation” in participants’ characteristics and perception.
This study proposed "Providing guidelines and information on the project through periodic identification of the people in charge", "Emphasizing awareness as a project for social contribution", and "Encouragement of revenue generation from non-carbon revenue sources" for improvement of scheme. Keywords: Policies, Climate change, Sustainable forest management ID: 3486756
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