The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils
Upland forest soils are recognized as the primary biological sink for methane. The influence of litter on soil methane uptake has not been clearly elucidated: litter could reduce methane uptake, have no influence or enhance it. Until now, the role of litter has only been studied for the diffusion of...
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Elsevier
2025-07-01
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| Series: | Geoderma |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0016706125001855 |
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| author | Vincent Arricastres Dorine Desalme Thomas Z. Lerch Marie-Noëlle Vaultier Caroline Plain |
| author_facet | Vincent Arricastres Dorine Desalme Thomas Z. Lerch Marie-Noëlle Vaultier Caroline Plain |
| author_sort | Vincent Arricastres |
| collection | DOAJ |
| description | Upland forest soils are recognized as the primary biological sink for methane. The influence of litter on soil methane uptake has not been clearly elucidated: litter could reduce methane uptake, have no influence or enhance it. Until now, the role of litter has only been studied for the diffusion of gases. The chemical influence of leachate compounds from litter is a dominant process in forest ecosystems. In this study, we investigated this influence on soil methane fluxes. We extracted leaf litter compounds from four temperate tree species (beech, oak, pine and spruce) and determined their biochemical composition by spectrophotometry. The leachates, or pure water for the control treatment, were added to three different types of sieved forest soil (alocrisol, cambisol and luvisol) to determine their influences on methane fluxes. The methane fluxes were monitored for 48-h. We found that the chemical compounds leached from leaf litter enhanced methane uptake by 8.2 % with no significant effect of the species from which the leachates were extracted. The enhancement depended on the type of soil and was correlated to initial methane uptake. These results indicate that the role played by litter in the methane balance of forest soils, which has so far been thought to affect only the availability of the substrate (methane and dioxygen), is more complex than that. |
| format | Article |
| id | doaj-art-852b1edec0004ee8a5f57c91ab3806b8 |
| institution | Kabale University |
| issn | 1872-6259 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
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| series | Geoderma |
| spelling | doaj-art-852b1edec0004ee8a5f57c91ab3806b82025-08-20T03:30:45ZengElsevierGeoderma1872-62592025-07-0145911734710.1016/j.geoderma.2025.117347The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soilsVincent Arricastres0Dorine Desalme1Thomas Z. Lerch2Marie-Noëlle Vaultier3Caroline Plain4Université de Lorraine, AgroParisTech, INRAE, Silva, F-54000 Nancy, FranceUniversité de Lorraine, AgroParisTech, INRAE, Silva, F-54000 Nancy, France; Corresponding author.CNRS, Sorbonne Université, INRAE, UPEC, IRD, Université Paris Cité, Institut d’Ecologie et des Sciences Environnementales de Paris, UMR 7618, 75005 Paris, FranceUniversité de Lorraine, AgroParisTech, INRAE, Silva, F-54000 Nancy, FranceUniversité de Lorraine, AgroParisTech, INRAE, Silva, F-54000 Nancy, FranceUpland forest soils are recognized as the primary biological sink for methane. The influence of litter on soil methane uptake has not been clearly elucidated: litter could reduce methane uptake, have no influence or enhance it. Until now, the role of litter has only been studied for the diffusion of gases. The chemical influence of leachate compounds from litter is a dominant process in forest ecosystems. In this study, we investigated this influence on soil methane fluxes. We extracted leaf litter compounds from four temperate tree species (beech, oak, pine and spruce) and determined their biochemical composition by spectrophotometry. The leachates, or pure water for the control treatment, were added to three different types of sieved forest soil (alocrisol, cambisol and luvisol) to determine their influences on methane fluxes. The methane fluxes were monitored for 48-h. We found that the chemical compounds leached from leaf litter enhanced methane uptake by 8.2 % with no significant effect of the species from which the leachates were extracted. The enhancement depended on the type of soil and was correlated to initial methane uptake. These results indicate that the role played by litter in the methane balance of forest soils, which has so far been thought to affect only the availability of the substrate (methane and dioxygen), is more complex than that.http://www.sciencedirect.com/science/article/pii/S0016706125001855Leaf litter leachatesnet CH4 fluxesWell-aerated forest soilsTree species |
| spellingShingle | Vincent Arricastres Dorine Desalme Thomas Z. Lerch Marie-Noëlle Vaultier Caroline Plain The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils Geoderma Leaf litter leachates net CH4 fluxes Well-aerated forest soils Tree species |
| title | The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils |
| title_full | The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils |
| title_fullStr | The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils |
| title_full_unstemmed | The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils |
| title_short | The addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils |
| title_sort | addition of chemical compounds extracted from leaf litter leachates enhances short term methane uptake by forest soils |
| topic | Leaf litter leachates net CH4 fluxes Well-aerated forest soils Tree species |
| url | http://www.sciencedirect.com/science/article/pii/S0016706125001855 |
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