Pérdida de nutrimentos porla quema de la vegetación en una sabana de Trachypogon
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| Autores: | , |
|---|---|
| 格式: | artículo original |
| 狀態: | Versión publicada |
| Fecha de Publicación: | 2002 |
| 實物特徵: | The losses of nutrients by fire were assesed in a Trachypogonsavanna located in Calabozo,Venezuela. About 95% of the biomass, 97% of N, 61% of P, 76% of K and 65% of Ca and Mg were transferredto the atmosphere. Ash deposition returned between 21-34% of Mg, Ca, K and Pand 0.2% of N. Previous dataindicated that precipitation and atmospheric fixation (in the case of N) could replace the rest of N, Ca, K and Mgtransferred to the atmosphere. As a consequence of frequent burning (annual or biannual), the soil of the savan-na showed lower organic matter and available Pand K content when it is compared with a 32 year protectedsavanna. |
| País: | Portal de Revistas UCR |
| 機構: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 語言: | Español |
| OAI Identifier: | oai:archivo.portal.ucr.ac.cr:article/16620 |
| 在線閱讀: | https://archivo.revistas.ucr.ac.cr/index.php/rbt/article/view/16620 |
| Palabra clave: | savanna trachypogon burning nutrient losses ashes soils venezuela |