Effects of paludiculture products on reducing greenhouse gas emissions from agricultural peatlands
| Autor: | Laura Lahtinen, Tuomas Mattila, Tanja Myllyviita, Jyri Seppälä, Harri Vasander |
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| Přispěvatelé: | Ruralia Institute, Mikkeli, Department of Forest Sciences, Harri Vasander / Principal Investigator, Forest Ecology and Management, Suomen ympäristökeskus, The Finnish Environment Institute |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
vähentäminen
FLUXES Environmental Engineering elinkaariarviointi Peatland järviruoko Management Monitoring Policy and Law kosteikot Life cycle assessment maatalous kosteikkoviljely METHANE EMISSIONS turvemaat 1172 Environmental sciences Nature and Landscape Conservation WETLANDS REED PHRAGMITES maanviljelysneuvokset (honorary titles) hiilensidonta osmankäämi Carbon footprint Cattail CULTIVATION SOILS kasvinviljely kasvihuonekaasut Common reed eloperäiset maat kosteikkokasvit päästöt Climate change impact BALANCES Paludiculture |
| Popis: | Drained peatlands are a large emission source and a shift to paludiculture (rewetting and cultivation of wet-tolerant plants) is emerging as a potential emission reduction measure. Paludiculture can potentially results in emission savings from direct emissions, product substitution and carbon storage, but the whole life cycle climate impacts are rarely studied. In this study, we evaluated two paludiculture product systems (cattail (Typha) construction board and common reed (Phragmites) horticultural vermicompost) with cradle-to-grave life cycle assessment (LCA) applied global sensitivity analysis to identify, which parts of the product system would need more research and product development to ensure net emission savings. Based on the results, both product systems result in much lower emissions than current agricultural land use and may be net greenhouse gas sinks (average − 6.0 tCO2eq ha−1 for cattail board; −3.0 tCO2eq ha−1 for reed growing media). The uncertainty in the product life cycle is concentrated to a few key processes: the direct CO2 and CH4 emissions from paludiculture, construction board additives, and CH4 emissions from vermicomposting reed. Further research to these would minimize the uncertainty and help in maximizing the climate mitigation potential of paludiculture derived products. Highlights • Paludiculture reduces emissions from agricultural peatlands. • Paludiculture products can store carbon and substitute emission intensive products. • Benefits can be increased by identifying high emission process stages in production. • Life cycle assessment can help in guiding process development. |
| Databáze: | OpenAIRE |
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