Comparison of interception losses in a broadleaved native forest and a <i>Pseudotsuga menziesii</i> (Douglas fir) plantation in the Andes Mountains of southern Chile

Iroumé, Andrés; Huber, Anton

doi:10.1002/hyp.1007

Cited by 60 publications

(39 citation statements)

References 39 publications

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“…On Okinawa, windstorms, particularly typhoon events, are very frequent and this may be an important cause of the high fraction of stemflow. The proportion of rainfall interception (15.2%) in this study is at the lowest of the widely reported range of 15-30% for many broad-leaved evergreen forests [9,12,18] but is higher than that reported for a subtropical rain forest in Taiwan [26]. Fujimoto [13] reported that interception represented 20.2-48.2% of annual precipitation for temperate evergreen broad-leaved forests in Kochi, Japan.…”

Section: Precipitation Partitioningcontrasting

confidence: 65%

Precipitation partitioning and related nutrient fluxes in a subtropical forest in Okinawa, Japan

Wang

Hirata

2005

Ann. For. Sci.

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-Precipitation partitioning into throughfall and stemflow and related hydrochemical fluxes were examined during a 3 y period from January 1998 to December 2000 in a subtropical evergreen broad-leaved forest on Okinawa Island, Japan. Monthly water samples were collected to determine the concentrations and associated fluxes of bioelements. The mean annual precipitation during the study period was 3325 mm. Typhoons played a central role in the hydrology of the study forest with 11 typhoons contributing 29.1% of the total rainfall over the 3 y period. Throughfall and stemflow contributed 53.9% and 30.9% of the annual rainfall, respectively, implying a rainfall interception of 15.2%. The very high fraction of stemflow could be due to the crown morphology of the dominant species, Castanopsis sieboldii, that has inclined branches and concave shaped leaves. Mean pH in the precipitation was 6.22, and decreased significantly as the water passed through the canopy. Concentrations of total N, DOC, K, Na, Ca, and Mg showed a clear pattern of enrichment in both throughfall and stemflow compared to rainfall. The proximity to the Pacific Ocean strongly influenced the nutrient fluxes via rainfall at our site as illustrated by the extremely high Na fluxes via rainfall (213 kg Na ha -1 y -1 ) and throughfall plus stemflow (291 kg Na ha -1 y -1 ). The mean annual nutrient inputs (in kg ha -1 ) were: total N 43, P 2.6, K 76, Ca 49, Mg 30, Na 291, Al 1.8, Fe 1.0, and Mn 1.1. The input of DOC reached 361 kg C ha -1 y -1 . The high nutrient inputs via net precipitation (throughfall plus stemflow) especially for N at our site is thought to reflect the frequent occurrence of sea salt-induced stress and serious herbivory by insect.Castanopsis sieboldii / dissolved organic carbon / evergreen broad-leaved forest / nutrient cycling / stemflow / throughfall Résumé -Partition des précipitations et flux de nutriments dans une forêt subtropicale d'Okinawa au Japon. La partition des précipitations entre eau arrivant directement au sol et écoulement le long des troncs et flux hydrochimiques liés a été étudié pendant 3 ans de janvier 1998 à décembre 2000 dans une forêt feuillue à feuilles persistantes de l'île d'Okinawa au Japon. Mensuellement des échantillons d'eau étaient collectés pour déterminer les concentrations et les flux des bioéléments. Les précipitations annuelles moyennes pendant la période étudiée ont atteint 3325 mm. Les typhons jouent un rôle central dans l'hydrologie de la forêt étudiée avec 11 typhons contribuant à 29,1 % des précipitations totales pour les 3 ans de la période d'étude. L'eau arrivant directement au sol et l'écoulement le long des troncs représentent respectivement 53,9 % et 30,9 % des précipitations incidentes annuelles, impliquant une interception des précipitations de 15,2 %. La part importante de l'écoulement le long des troncs pourrait être dû à la morphologie des couronnes de l'espèce dominante Castanopsis sieboldii qui a des branches inclinées et des feuilles de formes concaves. Le pH des précipitati...

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Section: Precipitation Partitioningcontrasting

confidence: 65%

Precipitation partitioning and related nutrient fluxes in a subtropical forest in Okinawa, Japan

Wang

Hirata

2005

Ann. For. Sci.

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“…The final site was a plantation in the Malalcahuello Forest Reserve, IXth Region, Chile, where the trees were 27 years old and 25 m tall. Throughfall was collected in one gutter, 10.5 cm × 24 m, routed to a storage tank (Iroumé and Huber, 2002; with additional original data for this research).…”

Section: Rainfall Throughfall Datamentioning

confidence: 99%

A stochastic model of throughfall for extreme events

Keim

Skaugset

Link

et al. 2004

Hydrol. Earth Syst. Sci.

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Although it is well known that forest canopies reduce the amount and intensity of precipitation at the ground surface, little is known about how canopy interception modifies extreme events. This research investigated the effects of forest cover on intensity-duration-frequency relationships using a stochastic model to extrapolate measured rainfall and throughfall to throughfall expected during extreme events. The model coupled a stochastic model of rainfall with stochastic representations of evaporation and precipitation transfer through canopies. Stochastic evaporation was governed by probability distributions sensitive to storm size, and transfer through canopies was governed by a black-box linear system. The modelled reduction of extreme-event intensities by canopies was 530%, depending on duration and return interval. The reduction was 1520% in low return interval events (2 y) at all durations. In contrast, intensities of high return interval events (90 y) were proportionally more reduced at short durations (~30% reduced) than at long durations (~5% reduced). The model suggested that evaporative losses reduced intensity in the frequent events (2 y return interval), but water transfer through the canopy was more important for the reduction in intensity in the rarest extreme events. High return intervals of long duration were least affected by canopies because evaporative losses were the least proportion of rainfall. Extreme events larger than 10-or 20-y return interval probability threshold occurred only 31 69% as often in throughfall as in rainfall.

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“…The first period, from 2000-2001 to 2004-2005, was compared with land cover data obtained during 2002(IFN3, 2005. The second period, from 2007-2008 to 2011-2012, was compared with land cover data from (IFN4, 2011.…”

Section: Hydrological Datamentioning

confidence: 99%

Land cover effects on hydrologic services under a precipitation gradient

Zabaleta¹,

Garmendia²,

Mariel³

et al. 2018

Preprint

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Abstract. Climate change impacts on the hydrological cycle are altering the quantity, quality, and temporal distribution of riverine discharge, necessitating a more rigorous consideration of changes in land cover and land use. This study establishes relationships between different land cover combinations (e.g., percentages of forest -both native and exotic -and pastureland) 15 and hydrological services, using hydrological indices estimated at annual and seasonal time scales in an area with a steep precipitation gradient (900-2600 mm y -1 ). Using discharge data from 20 catchments in the Bay of Biscay, a climate transition zone, the study applied multiple regression models to better understand how the interaction between precipitation and land cover combinations influence hydrological services. Findings showed the relationship between land cover combinations and hydrological services is highly dependent on the amount of precipitation, even in a climatically homogeneous and relatively 20 small area. In general, in the Bay of Biscay area, the greater presence of any type of forests is associated with lower annual water resources, especially with greater percentages of exotic plantations and high annual precipitation. Where precipitation is low, forests show more potential to reduce annual and winter high flows than pasturelands, but this potential decreases as annual or seasonal precipitation increases. As annual precipitation increases, low flows increase as the percentage of exotic plantations decreases and pasturelands increase. Results obtained in this study improve understanding of the multiple effects 25 of land cover on hydrological services, and illustrate the relevance of land planning to the management of water resources, especially under a climate change scenario.

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Comparison of interception losses in a broadleaved native forest and a Pseudotsuga menziesii (Douglas fir) plantation in the Andes Mountains of southern Chile

Cited by 60 publications

References 39 publications

Precipitation partitioning and related nutrient fluxes in a subtropical forest in Okinawa, Japan

Precipitation partitioning and related nutrient fluxes in a subtropical forest in Okinawa, Japan

A stochastic model of throughfall for extreme events

Land cover effects on hydrologic services under a precipitation gradient

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