Descripción del proyecto
Cómo controlar la calidad de la materia orgánica disuelta
Los arroyos reciben importantes aportes terrestres de materia orgánica disuelta (MOD). Se trata de un grave problema medioambiental en muchas cuencas del hemisferio norte. La MOD deteriora la calidad del agua y afecta al funcionamiento biogeoquímico y ecológico de los ecosistemas acuáticos. En este contexto, el equipo del proyecto COSTREAM de las Acciones Marie Skłodowska-Curie examinará los vínculos entre las medidas de gestión y la variabilidad de la MOD de los arroyos. En concreto, investigará la repercusión del abono mineral nitrogenado en la producción de MOD terrestre de forma estacional. También estudiará de qué manera los planes de gestión del uso de la tierra interactúan con los cambios en los factores climáticos para regular los patrones de la MOD de los arroyos a nivel regional. Dichos resultados servirán para mejorar las soluciones de gestión y restauración con base científica.
Objetivo
The rising trends in terrestrial dissolved organic matter (DOM) concentrations in streams have become a serious environmental issue in many catchments of the northern hemisphere. Indeed, DOM impairs water quality and affects the biogeochemical and ecological functioning of aquatic ecosystems. Knowledge gaps in drivers controlling seasonal and interannual variations of stream DOM limit our ability to provide measures that may be implemented by decision makers in order to mitigate the continuing trends. In rural landscapes, agricultural practices interact with climatic drivers to affect biogeochemical cycles, however these interactions and their impacts on stream DOM dynamics over different timescales have not been considered so far. The ambition of COSTREAM is to provide a better understanding of the linkages between management actions and stream DOM variability both spatially and temporally in order to enhance science-based management and restoration solutions. The project will combine field and experimental studies in a well-equipped agricultural catchment with data mining of long-term records collected in the French Brittany region. The main objectives are 1) to investigate the impact of nitrogen mineral fertilizer on the production of terrestrial DOM at the seasonal scale, and 2) to determine how land use management plans during the last decades have interacted with shifts in climatic drivers to regulate stream DOM patterns at the regional scale. The COSTREAM project has potentially strong impacts on both scientific and societal perspectives. Thanks to this project, the experienced researcher will receive a unique multidisciplinary scientific training by INRAE that will reinforce significantly his expertise for future research activities and open new perspectives for both academic and non-academic careers.
Ámbito científico
Programa(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Régimen de financiación
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinador
75007 Paris
Francia