Ignacio Rodriguez-Iturbe

James S. McDonnell Distinguished University Professor

Princeton University



ABSTRACT


Hydrologic dynamics is a key driver of vegetation types in all types of ecosystems.  In wetlands this influence is manifested mainly thorough the space-time dynamics of the hydroperiods, e.g.,occurrences of water over the terrain.  Hydroperiods are phenomena which involve different types of characteristics which need a probabilistic description at each site, e.g. their frequency of occurrence, their duration and the depth of water above ground.  The distribution of vegetation types in the Everglades is shown to be very much impacted by the hydroperiod characteristics.  Moreover, the probability distribution of the main characteristics of hydroperiods is derived here as function of climate, soil and vegetation.  This allows for the study of the possible impact of climate change on the hydroperiod dynamics and thus on the biodiversity of wetlands.



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Dr. Ignacio Rodríguez-Iturbe

Civil and Environmental Engineering

Princeton University