The influence of Larrea divaricata on soil moisture and on water status and growth of Stipa tenuis in southern Argentina
We studied the effect of a dominant shrub (Larrea divaricata) on soil moisture, and how this affected water potential and growth of a dominant grass (Stipa tenuis) in a shrubland located in southern Argentina. Soil moisture in the upper 10 cm of the soil was lower ( po0?05) or similar (po0?05) under...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/27794 |
| Acceso en línea: | http://hdl.handle.net/11336/27794 |
| Access Level: | acceso abierto |
| Palabra clave: | Larrea Divaricata Stipa Tenuis Plant-Plant Interactions Monte Region https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| Sumario: | We studied the effect of a dominant shrub (Larrea divaricata) on soil moisture, and how this affected water potential and growth of a dominant grass (Stipa tenuis) in a shrubland located in southern Argentina. Soil moisture in the upper 10 cm of the soil was lower ( po0?05) or similar (po0?05) under the shrub canopy than in the open intercanopy spaces. Concordantly, predawn leaf water potential and growth of Stipa tenuis were higher or similar in intercanopy locations than in canopy locations. The physical presence of L. divaricata canopy frequently reduced soil moisture availability for understory plant growth, in part because of canopy interception of precipitation. |
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