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Bibliographic Details
Main Author:	Alejandro Lucero Ignamarca
Format:	Artículo científico
Language:	es
Published:	Instituto de Ecología, A.C. 2019
Subjects:	Agrociencias espino Agroforestería valor pastoral sistema silvopastoril estepa de Acacia caven
Online Access:	https://www.redalyc.org/articulo.oa?id=61762610007 https://www.redalyc.org/journal/617/61762610007/ https://www.redalyc.org/journal/617/61762610007/html/ https://www.redalyc.org/journal/617/61762610007/61762610007.epub https://www.redalyc.org/journal/617/61762610007/movil
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La cobertura arbórea de Acacia caven sobre la calidad de la pradera y microclima en un sistema silvopastoril de Chile central Alejandro Lucero Ignamarca Fernando Muñoz Sáez Jorge Cancino Cancino Alvaro Sotomayor Garretón Francis Dube Katia Sáez Carrillo Arnoldo Villarroel Muñoz Mauricio Navarrete Torres Agrociencias espino Agroforestería valor pastoral sistema silvopastoril estepa de Acacia caven El presente estudio tiene como objetivo determinar el efecto de diferentes coberturas arbóreas sobre productividad y calidad de la pradera y sobre variables microclimáticas, en un sistema silvopastoril con espino (Acacia caven). Para ello se estableció un ensayo con cuatro tratamientos de cobertura arbórea (0%, 30% - 40%, 50% - 60%, > 70%), en un diseño experimental de bloques aleatorizados completos y tres repeticiones. Además de variables relacionadas con la productividad y calidad de la pradera, mediante sensores se realizó la medición permanente de temperatura y humedad de suelo, temperatura ambiente y humedad relativa. El periodo de análisis incluye dos temporadas de crecimiento de la pradera. Para los análisis estadísticos se consideraron tres modelos; i) la cobertura arbórea sobre la productividad de la pradera; ii) la cobertura arbórea sobre las variables microclimáticas y iii) la cobertura arbórea sobre la productividad pratense, considerando las variables microclimáticas como covariables. Los resultados indican que, en la segunda temporada, la mayor productividad se alcanzó con el tratamiento sin presencia de árboles (0%). No se detectó efecto de la cobertura arbórea sobre la calidad de la pradera, ni sobre variables microclimáticas, para los periodos evaluados. Las variables microclimáticas que mejor explicaron el desarrollo de la pradera fueron la humedad relativa mínima y la temperatura ambiente. Transcurridas dos temporadas de crecimiento, no es factible dilucidar aún cuál tratamiento genera las mejores condiciones para la productividad de la pradera, por lo que se hace necesario continuar con las mediciones. 2019 artículo científico 1405-0471 https://www.redalyc.org/articulo.oa?id=61762610007 https://www.redalyc.org/journal/617/61762610007/ https://www.redalyc.org/journal/617/61762610007/html/ https://www.redalyc.org/journal/617/61762610007/61762610007.epub https://www.redalyc.org/journal/617/61762610007/movil 10.21829/myb.2019.2521811 es http://www.redalyc.org/revista.oa?id=617 Madera y Bosques application/pdf Instituto de Ecología, A.C. Madera y Bosques (México) Num.2 Vol.25

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