Publication: Respuesta del crecimiento de Trifolium repens a la presencia de hojarasca de diversas especies del bosque de ribera
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2012
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Sociedad Española para el Estudio de los Pastos
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Abstract
El trébol blanco es una de las leguminosas más extendidas en zonas húmedas. Los bosques de ribera se caracterizan por una vegetación herbácea aprovechada ocasionalmente por el ganado, y particularmente sensible a la invasión de especies vegetales que pueden alterar su diversidad. El objetivo de este trabajo fue determinar cómo afecta la hojarasca de especies arbóreas nativas e invasoras en el crecimiento de la herbácea nativa Trifolium repens. Para ello se realizó un ensayo en invernadero con hojarasca de invasoras Ailanthus altissima, Robinia pseudoacacia, Ulmus pumila y nativas: Populus alba, Populus nigra, Ulmus minor, en cuatro momentos de descomposición. Los resultados muestran una reducción en el crecimiento de T. repens, tanto de la parte aérea como de la raíz, con todos los tratamientos de hojarasca (especies y tiempo de descomposición). El porcentaje de emergencia no se ve afectado de forma significativa por ninguno de los tratamientos. Por tanto el efecto de la hojarasca tendría mayor intensidad en el crecimiento de las plantas que en las fases germinativas.
White clover is one of the most widespread legumes in wet areas. Riparian forests are characterized by a herbaceous layer occasionally exploited by cattle and particularly sensitive to the invasion of plant species which may alter its diversity. The aim of this study was to determine the effect of invasive and native tree leaf litter in several decomposition phases, in the growth of the herbaceous Trifolium repens. A trial was conducted in a greenhouse with litter of invasives Ailanthus altissima, Robinia pseudoacacia, Ulmus pumila and natives: Populus alba, Populus nigra, Ulmus minor, in four decomposition phases. The results showed a reduction in the growth of T. repens with all litter treatments affecting both shoot and root growth. The percentage of emergency was not significantly affected by either treatment. Therefore, the effect of litter would have higher intensity in the growth of plants in the germ stage. Rosa Maria Canals Tresserras Leticia San Emeterio Garciandia
White clover is one of the most widespread legumes in wet areas. Riparian forests are characterized by a herbaceous layer occasionally exploited by cattle and particularly sensitive to the invasion of plant species which may alter its diversity. The aim of this study was to determine the effect of invasive and native tree leaf litter in several decomposition phases, in the growth of the herbaceous Trifolium repens. A trial was conducted in a greenhouse with litter of invasives Ailanthus altissima, Robinia pseudoacacia, Ulmus pumila and natives: Populus alba, Populus nigra, Ulmus minor, in four decomposition phases. The results showed a reduction in the growth of T. repens with all litter treatments affecting both shoot and root growth. The percentage of emergency was not significantly affected by either treatment. Therefore, the effect of litter would have higher intensity in the growth of plants in the germ stage. Rosa Maria Canals Tresserras Leticia San Emeterio Garciandia
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51 Reunión Científica de la SEEP: "Nuevos Retos de la Ganadería Extensiva: un agente de conservación en peligro de extinción", del 14 al 18 de mayo de 2012, Pamplona, España.