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Intercepción de la lluvia del dosel arbóreo y la hojarasca

Authors: Amaya Orozco, Ariane;

Intercepción de la lluvia del dosel arbóreo y la hojarasca

Abstract

[es]La intercepción de la lluvia, tanto por el dosel como por la hojarasca, es un proceso importante que influye en las condiciones de humedad del suelo, ya que una parte vuelve mediante evaporación a la atmosfera. Por lo tanto el objetivo de este estudio es profundizar más en el conocimiento de la capacidad de almacenaje e intercepción de los robles (Quercus robur) y en especial analizar si el tamaño de los árboles influye la intercepción. El estudio se llevo a cabo en dos robledales diferenciados por su tamaño durante tres estaciones del año: otoño, invierno y primavera (2014-2015) en las que se obtuvieron medidas de intercepción del dosel de la precipitación. También se obtuvieron muestras de hoja verde y hojarasca con objeto de calcular su capacidad máxima de retención de agua. Los resultados mostraron que el tamaño de los árboles es una característica que influye en el Índice de área foliar (LAI), y por tanto en la intercepción, pero que su efecto parece ser menos importante que el efecto causado por la variabilidad del volumen de lluvia. Del mismo modo, la intercepción relativa (en relación al volumen de lluvia) dependió de la interacción entre la estacionalidad y el tamaño de los árboles. Finalmente, la cantidad máxima de almacenamiento de agua fue mayor en la hojarasca que en la hoja verde, siendo mayor en el robledal de mayor tamaño al presentar significativamente mayor cantidad de hojarasca acumulada.

[en]Rain interception by the canopy, and also by litter, is an important process that has an influence in the soil moisture conditions, because a part of it returns to the atmosphere. Therefore the aim of this study is to deepen the knowledge of the storage capacity and interception of oaks (Quercus robur) and analyze if the size of the trees has an influence. The study was done in two oak forests differentiated by the size, and the measurements were made in three different seasons: fall, winter and spring (2014-2015) where canopy rain interception measures were obtained. Also, samples of green leaves and litter were taken to determine their maximum capacity of water storage. Results showed that the size of the oaks is a characteristic that influences the Leaf Area Index (LAI), and thus, it influences the interception that also depends on the amount of rain. The latter seemed to be more important that LAI in the interception process. Besides, relative interception (i.e. that in relation to rainfall volume) varied with the interaction between season and tree size. Finally, the maximum capacity of water storage was significantly higher in the litter than in green leaves, thus, as the accumulation of litter was highest in the bigger size trees the water interception by litter was potentially higher.

Country
Spain
Keywords

interceptación (hidrología), índice de área foliar, robledal, quercus robur

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green