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| Titel |
Vegetation patterns and soil-atmosphere water fluxes in drylands |
| VerfasserIn |
Mara Baudena, Jost von Hardenberg, Antonello Provenzale |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250056647
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| Zusammenfassung |
| While periodic and irregular vegetation patterns in drylands have been extensively studied and modeled in recent years, the effect of patterning on atmospheric-soil water fluxes at a local and at the mesoscale has yet to be determined in detail. This represents a crucial issue for assessing the possible need of adequate parametrizations or models of vegetation patterning also in local-area and large-scale climate models.
In this study we discuss a new explicit-space model for vegetation dynamics in water-limited ecosystems, capable of reproducing vegetation patterns and characterized by a more detailed representation of soil humidity, compared with earlier models. We apply the model to study the variation of soil-atmospheric evapotranspirative fluxes as a function of precipitation climatology and of associated vegetation pattern states, and we discuss the implications for climate modeling. |
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