Publication: Modelado de restauración forestal en sistemas de Dehesa sometidos a herbivoría
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2011
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Universidad de Talca
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Abstract
Los sistemas forestales de dehesa, presentan en la actualidad un serio problema de regeneración. Por este motivo es necesario diseñar estrategias que faciliten el reclutamiento de plantas jóvenes. En este trabajo desarrollamos un modelo teórico de un sistema con alta presión de herbivoría en el que se simula el efecto de dos medidas de manejo: la repoblación con planta o semilla y la protección de plantones. Se concluye que, según el modelo, resulta más rentable la protección de plantones que la repoblación, pero dado que ambas medidas no son excluyentes en restauración forestal se recomienda una estrategia mixta, siendo la protección de los plantones repoblados muy importante en sistemas con alta presión de herbivoría.
“Dehesa” forest systems currently present a serious problem of regeneration. Therefore it is necessary to design strategies for the recruitment of young plants. In this paper we develop a theoretical model of a system with a high pressure of herbivory and simulate the effect of two measures of forestry management: repopulation with plant or seed and the protection of young trees. It is concluded that, according to the model, the protection of young trees is more rentable than the repopulation. Given that both measures are not mutually exclusive, we recommend a mixed strategy, the protection of repopulated young trees being very important in “Dehesa” systems with high herbivorous pressure.
“Dehesa” forest systems currently present a serious problem of regeneration. Therefore it is necessary to design strategies for the recruitment of young plants. In this paper we develop a theoretical model of a system with a high pressure of herbivory and simulate the effect of two measures of forestry management: repopulation with plant or seed and the protection of young trees. It is concluded that, according to the model, the protection of young trees is more rentable than the repopulation. Given that both measures are not mutually exclusive, we recommend a mixed strategy, the protection of repopulated young trees being very important in “Dehesa” systems with high herbivorous pressure.