Rainfall intensity switches ecohydrological runoff / runon redistribution patterns in dryland vegetation patches
Effectively managing net primary productivity in drylands for grazing and other uses depends on understanding how limited rainfall input is redistributed by runoff and runon among vegetation patches, particularly for patches that contrast between lesser and greater amounts of vegetation cover. Due i...
| Otros Autores: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2015magliano1.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Rainfall intensity switches ecohydrological runoff / runon redistribution patterns in dryland vegetation patches |
| 520 | |a Effectively managing net primary productivity in drylands for grazing and other uses depends on understanding how limited rainfall input is redistributed by runoff and runon among vegetation patches, particularly for patches that contrast between lesser and greater amounts of vegetation cover. Due in part to data limitations, ecohydrologists generally have focused on rainfall event size to characterize water redistribution processes. Here we use soil moisture data from a semiarid woodland to highlight how, when event size is controlled and runoff and interception are negligible at the stand scale, rainfall intensity drives the relationship between water redistribution and canopy and soil patch attributes. Horizontal water redistribution variability increased with rainfall intensity and differed between patches with contrasting vegetation cover. Sparsely vegetated patches gained relatively more water during lower intensity events, whereas densely vegetated ones gained relatively more water during higher intensity events. Consequently, range managers need to account for the distribution of rainfall event intensity, as well as event size, to assess the consequences of climate variability and change on net primary productivity. More generally, our results suggest that rainfall intensity needs to be considered in addition to event size to understand vegetation patch dynamics in drylands. | ||
| 653 | |a CANOPY | ||
| 653 | |a DRY CHACO WOODLANDS | ||
| 653 | |a FOREST | ||
| 653 | |a RAINFALL INTENSITY | ||
| 653 | |a RANGELANDS | ||
| 653 | |a SPATIAL HETEROGENEITY | ||
| 653 | |a WATER BALANCE | ||
| 700 | 1 | |9 31084 |a Magliano, Patricio Nicolás |u Universidad Nacional de San Luis. Grupo de Estudios Ambientales (IMASL) . San Luis, Argentina. |u CONICET - San Luis, Argentina. | |
| 700 | 1 | |a Breshears, David D. |u University of Arizona. School of Natural Resources and the Environment. Tucson, Arizona. USA. |u University of Arizona. Department of Ecology and Evolutionary Biology. Tucson, Arizona. USA. |9 67904 | |
| 700 | |9 6385 |a Fernández, Roberto Javier |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. | ||
| 700 | 1 | |9 7390 |a Jobbágy, Esteban G. |u Universidad Nacional de San Luis. Grupo de Estudios Ambientales (IMASL) . San Luis, Argentina. |u CONICET - San Luis, Argentina. | |
| 773 | |t Ecological Applications |g Vol.25, no.8 (2015), p.2094–2100, grafs., fot. | ||
| 856 | |f 2015magliano1 |i En reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2015magliano1.pdf |x ARTI201809 | ||
| 856 | |u https://www.wiley.com |z LINK AL EDITOR | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||