Carbon incentives and farm economics: A study of peatland drainage optimization

Natural, waterlogged peatlands are recognized as the most efficient carbon storage ecosystems, playing a critical role in climate regulation. However, in Europe, agriculture on drained peat soils — although comprising only 2.5 % of the agricultural area — contributes disproportionately, generating a...

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Main Authors: Janne Rämö, Domna Tzemi, Antti Miettinen, Henrik Wejberg, Heikki Lehtonen
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Agricultural Water Management
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Online Access:http://www.sciencedirect.com/science/article/pii/S0378377425002264
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author Janne Rämö
Domna Tzemi
Antti Miettinen
Henrik Wejberg
Heikki Lehtonen
author_facet Janne Rämö
Domna Tzemi
Antti Miettinen
Henrik Wejberg
Heikki Lehtonen
author_sort Janne Rämö
collection DOAJ
description Natural, waterlogged peatlands are recognized as the most efficient carbon storage ecosystems, playing a critical role in climate regulation. However, in Europe, agriculture on drained peat soils — although comprising only 2.5 % of the agricultural area — contributes disproportionately, generating approximately 25 % of the EU’s total agricultural greenhouse gas emissions. This study examines the potential of drainage optimization and rewetting as strategies to reduce emissions from peatlands while balancing agricultural productivity. We quantitatively analyse the production, land use, and economic implications for farmers in two different farm scenarios using economic modelling and dynamic optimization. Our analysis evaluates the impact of carbon subsidy pricing on crop diversity and farmer income. Results indicate that while carbon subsidy prices have minimal influence on crop rotation diversity, they significantly affect farmers' income. With a subsidy price of 30€ per ton of CO2 equivalent, or 80€ per ton in the case of high-value crops, farmers transition into ''carbon farmers'', obtaining higher share of total net present value from carbon subsidies rather than traditional agricultural income. Furthermore, the majority of climate benefits, including GHG reduction, are realized already at the 30€/tCO2e subsidy threshold. The findings suggest that carbon subsidies could offer a viable financial incentive for farmers to adopt peatland rewetting practices, which could reduce GHG emissions substantially. However, subsidy designs need careful calibration to ensure they do not distort agricultural practices or reduce crop diversity, while still delivering significant climate benefits.
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spelling doaj-art-ebeec1f8e2574f15b093002e5dbda5d92025-08-20T03:47:34ZengElsevierAgricultural Water Management1873-22832025-06-0131410951210.1016/j.agwat.2025.109512Carbon incentives and farm economics: A study of peatland drainage optimizationJanne Rämö0Domna Tzemi1Antti Miettinen2Henrik Wejberg3Heikki Lehtonen4Natural Resources Institute Finland, Latokartanonkaari 9, Helsinki 00790, Finland; Corresponding author.Natural Resources Institute Finland, Latokartanonkaari 9, Helsinki 00790, FinlandNatural Resources Institute Finland, Yliopistokatu 6 B, Joensuu 80100, FinlandNatural Resources Institute Finland, Latokartanonkaari 9, Helsinki 00790, FinlandNatural Resources Institute Finland, Latokartanonkaari 9, Helsinki 00790, FinlandNatural, waterlogged peatlands are recognized as the most efficient carbon storage ecosystems, playing a critical role in climate regulation. However, in Europe, agriculture on drained peat soils — although comprising only 2.5 % of the agricultural area — contributes disproportionately, generating approximately 25 % of the EU’s total agricultural greenhouse gas emissions. This study examines the potential of drainage optimization and rewetting as strategies to reduce emissions from peatlands while balancing agricultural productivity. We quantitatively analyse the production, land use, and economic implications for farmers in two different farm scenarios using economic modelling and dynamic optimization. Our analysis evaluates the impact of carbon subsidy pricing on crop diversity and farmer income. Results indicate that while carbon subsidy prices have minimal influence on crop rotation diversity, they significantly affect farmers' income. With a subsidy price of 30€ per ton of CO2 equivalent, or 80€ per ton in the case of high-value crops, farmers transition into ''carbon farmers'', obtaining higher share of total net present value from carbon subsidies rather than traditional agricultural income. Furthermore, the majority of climate benefits, including GHG reduction, are realized already at the 30€/tCO2e subsidy threshold. The findings suggest that carbon subsidies could offer a viable financial incentive for farmers to adopt peatland rewetting practices, which could reduce GHG emissions substantially. However, subsidy designs need careful calibration to ensure they do not distort agricultural practices or reduce crop diversity, while still delivering significant climate benefits.http://www.sciencedirect.com/science/article/pii/S0378377425002264Peatland rewettingCarbon subsidyGHG emissionsAgricultural economicsCrop rotationCarbon farming
spellingShingle Janne Rämö
Domna Tzemi
Antti Miettinen
Henrik Wejberg
Heikki Lehtonen
Carbon incentives and farm economics: A study of peatland drainage optimization
Agricultural Water Management
Peatland rewetting
Carbon subsidy
GHG emissions
Agricultural economics
Crop rotation
Carbon farming
title Carbon incentives and farm economics: A study of peatland drainage optimization
title_full Carbon incentives and farm economics: A study of peatland drainage optimization
title_fullStr Carbon incentives and farm economics: A study of peatland drainage optimization
title_full_unstemmed Carbon incentives and farm economics: A study of peatland drainage optimization
title_short Carbon incentives and farm economics: A study of peatland drainage optimization
title_sort carbon incentives and farm economics a study of peatland drainage optimization
topic Peatland rewetting
Carbon subsidy
GHG emissions
Agricultural economics
Crop rotation
Carbon farming
url http://www.sciencedirect.com/science/article/pii/S0378377425002264
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AT henrikwejberg carbonincentivesandfarmeconomicsastudyofpeatlanddrainageoptimization
AT heikkilehtonen carbonincentivesandfarmeconomicsastudyofpeatlanddrainageoptimization