An upscaling of methane emissions from Swedish flooded land
The 2019 IPCC Refinement updated reporting guidelines for greenhouse gas (GHG) emissions (predominantly methane; CH4) from “flooded land”; reservoirs, ponds, and drainage ditches/canals. These waterbodies are created by humans and thus their GHG emissions are considered anthropogenic. Here, we consi...
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Taylor & Francis Group
2025-12-01
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| Series: | Carbon Management |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17583004.2024.2445254 |
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| author | Mike Peacock Martyn N. Futter William Lidberg Mattias Lundblad Pia Geranmayeh |
| author_facet | Mike Peacock Martyn N. Futter William Lidberg Mattias Lundblad Pia Geranmayeh |
| author_sort | Mike Peacock |
| collection | DOAJ |
| description | The 2019 IPCC Refinement updated reporting guidelines for greenhouse gas (GHG) emissions (predominantly methane; CH4) from “flooded land”; reservoirs, ponds, and drainage ditches/canals. These waterbodies are created by humans and thus their GHG emissions are considered anthropogenic. Here, we consider the implications of accounting for flooded land emissions in the Swedish national GHG inventory. We collate relevant Swedish GHG data for reservoirs, ponds and ditches, and combine these, and IPCC emission factors (EFs), with estimates of total waterbody surface area to upscale emissions. We find flooded lands emit a national total of 34,000 t CH4 yr−1 using IPCC EFs, or 14,000 t CH4 yr−1 when using EFs derived from Swedish data only, equivalent to 19% and 8% of national CH4 emissions. Cumulatively, reservoirs cover the largest surface area (71% of total flooded land), followed by ditches (26%) and ponds (3%). However, using IPCC EFs, ditch emissions dominate the budget, emitting 28,700 t CH4 yr−1 compared to ∼1,700 t CH4 yr−1 for ponds and 3,400 t CH4 yr−1 for reservoirs. Our findings show that ditches may make outsized contributions to national emissions, and that default IPCC EFs may be inappropriately high for GHG accounting in Sweden, and presumably other northern nations. |
| format | Article |
| id | doaj-art-b22c83ca5098416ebb9ed0ebc5181f14 |
| institution | Kabale University |
| issn | 1758-3004 1758-3012 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
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| series | Carbon Management |
| spelling | doaj-art-b22c83ca5098416ebb9ed0ebc5181f142024-12-26T16:38:14ZengTaylor & Francis GroupCarbon Management1758-30041758-30122025-12-0116110.1080/17583004.2024.2445254An upscaling of methane emissions from Swedish flooded landMike Peacock0Martyn N. Futter1William Lidberg2Mattias Lundblad3Pia Geranmayeh4Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, SwedenDepartment of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, SwedenDepartment of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, SwedenDepartment of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, SwedenDepartment of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, SwedenThe 2019 IPCC Refinement updated reporting guidelines for greenhouse gas (GHG) emissions (predominantly methane; CH4) from “flooded land”; reservoirs, ponds, and drainage ditches/canals. These waterbodies are created by humans and thus their GHG emissions are considered anthropogenic. Here, we consider the implications of accounting for flooded land emissions in the Swedish national GHG inventory. We collate relevant Swedish GHG data for reservoirs, ponds and ditches, and combine these, and IPCC emission factors (EFs), with estimates of total waterbody surface area to upscale emissions. We find flooded lands emit a national total of 34,000 t CH4 yr−1 using IPCC EFs, or 14,000 t CH4 yr−1 when using EFs derived from Swedish data only, equivalent to 19% and 8% of national CH4 emissions. Cumulatively, reservoirs cover the largest surface area (71% of total flooded land), followed by ditches (26%) and ponds (3%). However, using IPCC EFs, ditch emissions dominate the budget, emitting 28,700 t CH4 yr−1 compared to ∼1,700 t CH4 yr−1 for ponds and 3,400 t CH4 yr−1 for reservoirs. Our findings show that ditches may make outsized contributions to national emissions, and that default IPCC EFs may be inappropriately high for GHG accounting in Sweden, and presumably other northern nations.https://www.tandfonline.com/doi/10.1080/17583004.2024.2445254Freshwatersinland watersgreenhouse gasesreservoirspondsditches |
| spellingShingle | Mike Peacock Martyn N. Futter William Lidberg Mattias Lundblad Pia Geranmayeh An upscaling of methane emissions from Swedish flooded land Carbon Management Freshwaters inland waters greenhouse gases reservoirs ponds ditches |
| title | An upscaling of methane emissions from Swedish flooded land |
| title_full | An upscaling of methane emissions from Swedish flooded land |
| title_fullStr | An upscaling of methane emissions from Swedish flooded land |
| title_full_unstemmed | An upscaling of methane emissions from Swedish flooded land |
| title_short | An upscaling of methane emissions from Swedish flooded land |
| title_sort | upscaling of methane emissions from swedish flooded land |
| topic | Freshwaters inland waters greenhouse gases reservoirs ponds ditches |
| url | https://www.tandfonline.com/doi/10.1080/17583004.2024.2445254 |
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