Rainfall interception and spatial variability of throughfall in spruce stand

Abstract

Abstract:The interception was recognized as an important part of the catchment water balance in temperate climate. The mountainous forest ecosystem at experimental headwater catchment Liz has been subject of long-term monitoring. Unique dataset in terms of time resolution serves to determine canopy storage capacity and free throughfall. Spatial variability of throughfall was studied using one weighing and five tipping bucket rain gauges. The basic characteristics of forest affecting interception process were determined for the Norway spruce stand at the experimental area -the leaf area index was 5.66 -6.00 m 2 m -2 , the basal area was 55.7 m 2 ha -1 , and the crown closure above individual rain gauges was between 19 and 95%. The total interception loss in both growing seasons analyzed was 34.5%. The mean value of the interception capacity determined was about 2 mm. Throughfall exhibited high variability from place to place and it was strongly affected by character of rainfall. On the other hand, spatial pattern of throughfall in average showed low variability.

Spatio-temporal variation of throughfall in a hyrcanian plain forest stand in Northern Iran

“…This is consistent with other studies (Herold et al, 2005;Hosseini Ghaleh Bahmani et al 2012;Nasiri et al, 2012;Rahmani et al, 2011;Xiao et al, 2000). Interestingly, the throughfall values obtained for the study area as a representative area for the Hyrcanian plain were similar to the findings for mountain ecosystems in Slovakia and the Czech Republic by Holko et al (2009) and Dohnal et al (2014).…”

“…Improving our understanding about rainfall partitioning in forests ecosystems is very important for studies that focus on forest hydrology to better management and decision making on this vital ecosystems (Ajami et al, 2011;Brecciaroli et al, 2012;Davudirad et al, 2015;Dohnal et al, 2014;Frot et al, 2007;Holko et al, 2009;Xu et al, 2014). Such eco-hydrological studies lead to a proper hydrological balance analysis and therefore have been well considered in forest hydrology studies during last few decades (Adriaenssens et al, 2012;Bosch and Hewlett, 1982;Carlyle-Moses, 2004;Devlaeminck et al, 2005;Gurav et al, 2012;Marin et al, 2000;Llorens and Domingo, 2007;Mitchell et al, 1986;Molina and Campo, 2012;Nanko et al, 2006;Park and Cameron, 2008;Rahmani et al, 2011;Shachnovich et al, 2008;Tcherepanov et al, 2005;Xu et al, 2014).…”

Simulations of coupled non-isothermal soil moisture transport and evaporation fluxes in a forest area

“…The interaction between soil moisture dynamics with evaporation fluxes can be summarized as follows. Interception diminishes the precipitation that arrives at the soil surface, causing more gradual infiltration (Dohnal et al, 2014). Transpiration is directly conducted through the stomata of leaves and simultaneously consumes soil moisture from the root zone.…”

Dinámica del agua de lluvia en árboles de selva baja caducifolia

“…El análisis de este proceso, y la generación de parámetros aplicables a este tipo de vegetación, permitirá evaluar y valorar el comportamiento del flujo de agua precipitada y determinar la influencia real de las plantas en la ganancia (infiltración) y pérdida de agua (intercepción). Los elementos para evaluar los componentes del fraccionamiento de la lluvia, para las especies vegetales, son el flujo de dosel y flujo caulinar (Van Dijk and Bruijnzeel, 2001;Clark et al, 2008;Muzylo et al, 2009;Bulcock and Jewitt, 2010;Bulcock and Jewitt, 2012;Dohnal et al, 2014). Una variable determinante para calcular la intercepción, el flujo caulinar y el flujo de dosel, por cada especie vegetal, es el índice de área foliar (IAF) y la lámina precipitada (Luo et al, 2002;Boken and Chandra, 2012;Martin et al, 2013).…”

“…The analysis of this process, and generating parameters applicable to this type of vegetation, will assess and evaluate the flow behavior of precipitated water and determine the actual influence of plants on the gain (infiltration) and water loss (interception). The elements to evaluate the components of fractionation of rain, for plant species, are the flow of canopy and cauline flow (Van Dijk and Bruijnzeel, 2001;Clark et al, 2008;Muzylo et al, 2009;Bulcock and Jewitt, 2010;Bulcock and Jewitt, 2012;Dohnal et al, 2014). A determining factor for calculating the interception variable, the cauline flow and flow canopy, for each plant species, is the leaf area index (IAF) and the precipitated sheet (Luo et al, 2002;Boken and Chandra, 2012;Martin et al, 2013).…”