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| Título: | Groundwater discharge as a driver of methane emissions from Arctic lakes |
|---|---|
| Autor/a: | Olid García, Carolina; Rodellas, Valentí; Rocher-Ros, Gerard; Garcia-Orellana, Jordi; Diego-Feliu, Marc; Alorda-Kleinglass, Aaron; Bastviken, David; Karlsson, Jan |
| Abstract: | Unidad de excelencia María de Maeztu CEX2019-000940-M |
| Abstract: | Lateral CH4 inputs to Arctic lakes through groundwater discharge could be substantial and constitute an important pathway that links CH4 production in thawing permafrost to atmospheric emissions via lakes. Yet, groundwater CH4 inputs and associated drivers are hitherto poorly constrained because their dynamics and spatial variability are largely unknown. Here, we unravel the important role and drivers of groundwater discharge for CH4 emissions from Arctic lakes. Spatial patterns across lakes suggest groundwater inflows are primarily related to lake depth and wetland cover. Groundwater CH4 inputs to lakes are higher in summer than in autumn and are influenced by hydrological (groundwater recharge) and biological drivers (CH4 production). This information on the spatial and temporal patterns on groundwater discharge at high northern latitudes is critical for predicting lake CH4 emissions in the warming Arctic, as rising temperatures, increasing precipitation, and permafrost thawing may further exacerbate groundwater CH4 inputs to lakes. |
| Fecha de creación: | 12-12-2022 |
| Materia(s): | -Carbon cycle -Climate-change impacts |
| Derechos: | open access
Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. https://creativecommons.org/licenses/by/4.0/ |
| Tipo de documento: | Article |
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| Uri: | https://ddd.uab.cat/record/265352 |
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