Noise-induced phenomena in riparian vegetation dynamics

Details Noise-induced phenomena in riparian vegetation dynamics Noise-induced phenomena in riparian vegetation dynamics

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3418406c&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 18, CiteID L18406

Physics

Geophysics

Hydrology: Eco-Hydrology, Biogeosciences: Riparian Systems (0744, 1856), Mathematical Geophysics: Stochastic Processes (3235, 4468, 4475, 7857), Hydrology: Streamflow, Nonlinear Geophysics: Pattern Formation

Scientific paper

Random forcing due to the river streamflow is a key element in riparian vegetation ecosystems. It influences several aspects of the riparian landscape, the most important being the morphology and water availability. In this letter, we analytically solve a stochastic model to show how hydrological random fluctuations are able to induce both statistically stable states and bimodality in vegetation behavior. These noise-induced results can contribute to explain two well-documented features of several riparian landscapes: the bell-shaped biomass distribution along riparian transects, and spatial vegetation patchiness along a river.

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