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Descripción
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| Model parameter uncertainty is one of the main challenges in linking global change and sediment dynamics, limiting our capacity to design effective mitigation measures at the basin scale. Sensitivity analyses can help identify which parameters have the greatest influence on model outcomes, and therefore improve model calibration and interpretation. We present here the sensitivity analysis of the InVEST sediment retention model performed in the Llobregat river basin (NE Iberian Peninsula) as an example of Mediterranean river basins. Our analysis identified the physical model parameters as the most influential. Accordingly, small changes in variables such as the magnitude and frequency of extreme rainfall events could cause major changes in sediment dynamics, demonstrating their susceptibility to climate change in Mediterranean basins. Parameters more directly related to human activities, such as crop management practices, were also influential in the amount of exported sediment. The importance of these human-related parameters in the sediment export process suggests that mitigation measures have the potential to compensate, to a certain degree, the climate-change impacts on sediment dynamics. | |
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Internacional
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Si |
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ISSN o ISBN
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Entidad relacionada
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Natural Capital Project. Stanford University. |
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Nacionalidad Entidad
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E.E.U.U. DE AMERICA |
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Lugar del congreso
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Palo Alto, California |