4 results on '"Carbon stock change"'
Search Results
2. Lessons from project-scale reducing emissions from deforestation and forest degradation: A case study in northern Lao People’s Democratic Republic
- Author
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Motoshi Hiratsuka, Hozumi Hashiguchi, Miki Toda, and Makino Yamada Yamanoshita
- Subjects
carbon stock change ,alternative livelihood ,participatory forest management ,social capital ,sustainable development goals ,Forestry ,SD1-669.5 ,Environmental sciences ,GE1-350 - Abstract
The reducing emissions from deforestation and forest degradation (REDD+) framework has been implemented over the past decade, and has led to a restructuring of forest governance systems in host countries. In the case of Lao People’s Democratic Republic, which is promoting REDD+, activities have been implemented at project, sub-national, and national scales. Project-scale REDD+ is assumed to be compatible with small-scale forestry, and usually targets local people to enhance participatory forest management through technology transfer. Such projects were also supported by foreign governments under bilateral cooperation or by private funding. In the case of sub-national- or national-scale REDD+, the Lao People’s Democratic Republic government aims to develop a system of forest monitoring, as well as related structures required by international REDD+ entities. These activities are supported by substantial funding from multilateral organizations. Lessons learned from project-scale REDD+ in northern Lao People’s Democratic Republic showed a gap in expectations among different donors and recipients regarding how to implement REDD+, in particular how to reduce dependency on forest resources in rural areas, and how to estimate and account for greenhouse gas emissions reductions with consistent methodologies at different scales. Such differences are related to the attitudes of local people toward participation, and those of the private entities that fund projects and ground-based activities. In future REDD+ schemes, the structural network or structural social capital among project-, sub- national-, and national-scale activities should be reconsidered to enhance the continued participation of stakeholders and make use of their accumulated experience and knowledge of small-scale forestry management.
- Published
- 2022
- Full Text
- View/download PDF
3. Outlook of the European forest-based sector: forest growth, harvest demand, wood-product markets, and forest carbon dynamics implications
- Author
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Jonsson R, Blujdea VNB, Fiorese G, Pilli R, Rinaldi F, Baranzelli C, and Camia A
- Subjects
Biomass ,Carbon Stock Change ,Forest ,Fuelwood ,Harvest ,Wood-based Products ,Forestry ,SD1-669.5 - Abstract
A comprehensive assessment of European forest-based biomass harvest potentials, their future utilization and implications on international wood product markets and forest carbon dynamics requires the capability to model forest resource development as well as global markets for wood-based commodities with sufficient geographical and product detail and, most importantly, their interactions. To this aim, we apply a model framework fully integrating a European forest resource model and a global economic forest sector model. In a business-as-usual (BaU) scenario, European Union harvests increase seven percent by 2030 compared to past levels (485 million m3 on 2000-2012 average and 517 million m3 in 2030). The subsequent annual carbon stock change is a ten percent reduction by 2030 compared to 2000-2012 average (equal to 119.3 Tg C yr-1), corresponding to decreasing carbon-dioxide removal by the European forests. A second, high mobilization scenario (HM), characterized by the full utilization of the potential wood supply and a doubling of EU wood pellets consumption, was designed to explore potential impacts on forest carbon dynamics and international wood product markets under intensive exploitation of biomass resources. In the HM scenario, harvest increases by 55% (754 million m3 in 2030) compared to the BaU scenario. Fuelwood accounts for this increase in harvest levels as overall competition effects from increased wood pellets consumption outweighs synergies for material uses of wood, resulting in slightly reduced harvests of industrial roundwood. As expected, this increasing harvest level would significantly impair carbon-dioxide forest sequestration from the atmosphere in the medium term (-83% in 2030, compared to 2000-2012 average).
- Published
- 2018
- Full Text
- View/download PDF
4. Validating tree litter decomposition in the Yasso07 carbon model
- Author
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Esther Thürig, N. Rogiers, Markus Didion, and B. Frey
- Subjects
Decomposition ,Agroforestry ,Ecological Modeling ,Carbon stock change ,Greenhouse gas inventory ,chemistry.chemical_element ,Forestry ,Soil carbon ,Dead organic matter ,Plant litter ,Deadwood ,Ecological Modelling ,chemistry ,Decomposition (computer science) ,Litter ,Environmental science ,Ecosystem ,Forest ,Scale (map) ,Carbon - Abstract
Up-to-date and accurate information of ecosystem state and functioning becomes ever more critical for decision-making and policy. For complex ecosystems such as forests, these demands can in some cases not be met by field observations only, especially at larger scales. Additionally, methodological requirements include comparability and transparency. To satisfy these needs, models can provide an important supplement or alternative. We examined the validity of the litter decomposition and soil carbon model Yasso07 in Swiss forests based on data on observed decomposition of (i) foliage and fine root litter from sites along a climatic and altitudinal gradient and (ii) of 588 dead trees from 394 plots of the Swiss National Forest Inventory. Our objectives were to (i) examine the effect of the application of three different published Yasso07 parameter sets on simulated decay rate; (ii) analyze the accuracy of Yasso07 for reproducing observed decomposition of litter and dead wood in Swiss forests; and (iii) evaluate the suitability of Yasso07 for regional and national scale applications in Swiss forests. From the three examined parameter sets, the set was identified which resulted in the best agreement between Yasso07 results and observed decomposition. No significant differences were found between simulated and observed remaining C in foliage and fine root litter after 10 years and in lying dead trees after 14–21 years. The model overestimated the decomposition of standing dead trees. We concluded that Yasso07 can provide accurate information on temporal changes in C stocks in litter and deadwood in Swiss forests in a transparent manner that is valid for, e.g., reporting purposes under the UNFCCC and the Kyoto Protocol.
- Full Text
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