Resumen del producto

Pathways of nitrogen, including their input into food webs and their sequestering in sediments, are affected by climate that produce aggravation of existing environmental problems and generate a mixed signal of variability (natural and anthropogenic). To achieve a better understanding of this complex problem in the coastal environment affected by agricultural or urban activities our study is a multidisciplinary project that will include information from eutrophic and almost pristine coastal systems. This approach that combine contemporary estimates in the water column, sediment trap, in addition to the historical records obtained from high resolution laminated sediments with the purpose of: (1) Calibrating the nitrogen sedimentary record; (2) Separating natural and anthropogenic variability; and (3) Improving climate model projections because a critical source of uncertainties in climate projections is related to the use of imperfect models that does not represent or do not accurately capture essential features of the climate system.

Palabras clave: Climate; Lagoons; nitrogen pathways

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