Evaluating the role of organic mulches in reducing soil CO2 emissions and improving soil conditions in a commercial vineyard
This study investigates the utilization of organic mulches and their impact on CO2 emissions in a commercial vineyard situated in La Rioja, Spain. Given the increasing urgency of climate change mitigation, sustainable viticulture practices such as organic mulching offer a potential strategy to reduc...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/419262 |
| Acceso en línea: | http://hdl.handle.net/10261/419262 https://api.elsevier.com/content/abstract/scopus_id/105015513988 |
| Access Level: | acceso abierto |
| Palabra clave: | CO(2) emissions Climate change mitigation Mulch Soil management Sustainable viticulture |
| Sumario: | This study investigates the utilization of organic mulches and their impact on CO2 emissions in a commercial vineyard situated in La Rioja, Spain. Given the increasing urgency of climate change mitigation, sustainable viticulture practices such as organic mulching offer a potential strategy to reduce CO2 emissions while improving soil water retention and temperature regulation. Over the course of two years, three organic mulches -straw, pruning, or mushroom post-cultivation substrate- were compared to conventional practices, namely herbicide application or tillage in the vineyard rows. Weekly CO₂ emissions were monitored during key phenological stages using non-dispersive infrared (NDIR) and Fourier-transform infrared (FTIR) gas analyzers and a closed chamber method. CO2 emissions levels varied significantly depending on mulch type and phenological stage. Mushroom compost (SMC) consistently presented the highest emissions across all stages and in both years. In contrast, pruning residue (GPD) and straw (Str) mulches significantly reduced emissions compared to SMC and tillage (T), particularly from budburst to veraison and during vegetative arrest stages. While differences were less evident compared to herbicide (H), some statistically significant reductions were still observed. These findings indicate that specific organic mulches, especially pruning residues and straw, may reduce CO₂ emissions relative to conventional tillage, although effects vary by year and phenological phase. Future research should focus on the long-term impacts of mulch decomposition on soil carbon dynamics and explore synergies with other climate-resilient vineyard management practices. |
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