Hydrological processes at two subtropical forest catchments: the Serra do Mar, São Paulo, Brazil

Fujieda, M.; Kudoh, Tetsuya; Cicco, Valdir de; Calvarcho, Jose Luis de

doi:10.1016/s0022-1694(97)00015-2

Cited by 89 publications

(96 citation statements)

References 16 publications

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“…This value is not far from other reports at plot scale, like those byÁvila et al (2004): 1-9% (coffee and E. deglupta); Harmand et al (2007): 2% andSiles (2007): 3-6% (coffee and I. densiflora). At basin scale, Fujieda et al (1997) measured 5% on a 0.56 km 2 basin under a three layer forest in Brazil, Lesack (1993) modelled 3% in a rain-forest basin in Brazil (area: 0.23 km 2 ), Kinner et al (2004) modelled 4% in a Panamanian tropical-forest basin (0.10 km 2 ) and Charlier et al (2008) modelled 10% in a banana-plantation basin in Guadeloupe (0.18 km 2 ). A major source of surface runoff and discrepancy between plot and basin scale studies could be the presence of roads.…”

Section: Interception Throughfall Stemflow and Surface Runoffmentioning

confidence: 99%

“…Comprehensive WB studies at basin scale, including closure verification by independent methods, have been carried out in the developed world and for other land covers, like those reported by Roberts and Harding (1996), Dawes et al (1997), Ceballos and Schnabel (1998), Wilson et al (2001) and Maeda et al (2006). Some experimental basins are located in the tropics, like those in Brazil, Costa Rica, Guadeloupe and Panamá (Charlier et al, 2008;Fujieda et al, 1997;Genereux et al, 2005;Kinner and Stallard, 2004), but no coffee AF basins have been equipped so far. Some reports are available for coffee AF systems but at the plot level and for some particular fluxes such as throughfall and stemflow (Siles et al, 2010b), tree and coffee transpiration (Dauzat et al, 2001;van Kanten and Vaast, 2006), surface runoff (Harmand et al, 2007), energy balance and latent heat flux (Gutiérrez et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

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Modelling the hydrological behaviour of a coffee agroforestry basin in Costa Rica

Gomez-Delgado

Roupsard

Maire

et al. 2011

Hydrol. Earth Syst. Sci.

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Abstract. The profitability of hydropower in Costa Rica is affected by soil erosion and sedimentation in dam reservoirs, which are in turn influenced by land use, infiltration and aquifer interactions with surface water. In order to foster the provision and payment for Hydrological Environmental Services (HES), a quantitative assessment of the impact of specific land uses on the functioning of drainage-basins is required. The present paper aims to study the water balance partitioning in a volcanic coffee agroforestry microbasin (1 km 2 , steep slopes) in Costa Rica, as a first step towards evaluating sediment or contaminant loads. The main hydrological processes were monitored during one year, using flume, eddy-covariance flux tower, soil water profiles and piezometers. A new Hydro-SVAT lumped model is proposed, that balances SVAT (Soil Vegetation Atmosphere Transfer) and basin-reservoir routines. The purpose of such a coupling was to achieve a trade-off between the expected performance of ecophysiological and hydrological models, which are often employed separately and at different spatial scales, either the plot or the basin. The calibration of the model to perform streamflow yielded a Nash-Sutcliffe (NS) coefficient equal to 0.89 for the year 2009, while the Correspondence to: F. Gómez-Delgado (fgomezd@ice.go.cr) validation of the water balance partitioning was consistent with the independent measurements of actual evapotranspiration (R 2 = 0.79, energy balance closed independently), soil water content (R 2 = 0.35) and water table level (R 2 = 0.84). Eight months of data from 2010 were used to validate modelled streamflow, resulting in a NS = 0.75. An uncertainty analysis showed that the streamflow modelling was precise for nearly every time step, while a sensitivity analysis revealed which parameters mostly affected model precision, depending on the season. It was observed that 64% of the incident rainfall R flowed out of the basin as streamflow and 25% as evapotranspiration, while the remaining 11% is probably explained by deep percolation, measurement errors and/or inter-annual changes in soil and aquifer water stocks. The model indicated an interception loss equal to 4% of R, a surface runoff of 4% and an infiltration component of 92%. The modelled streamflow was constituted by 87% of baseflow originating from the aquifer, 7% of subsurface nonsaturated runoff and 6% of surface runoff. Given the low surface runoff observed under the current physical conditions (andisol) and management practices (no tillage, planted trees, bare soil kept by weeding), this agroforestry system on a volcanic soil demonstrated potential to provide valuable HES, such as a reduced superficial displacement-capacity for fertilizers, pesticides and sediments, as well as a streamflow regulation function provided by the highly efficient mechanisms Published by Copernicus Publications on behalf of the European Geosciences Union. 370 F. Gómez-Delgado et al.: Modelling hydrological behaviour of coffee agroforestry basin in Costa Rica of ...

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Section: Interception Throughfall Stemflow and Surface Runoffmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling the hydrological behaviour of a coffee agroforestry basin in Costa Rica

Gomez-Delgado

Roupsard

Maire

et al. 2011

Hydrol. Earth Syst. Sci.

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show abstract

“…Water balance components include: precipitation, evapotranspiration, total runoff, surface runoff, groundwater flow and the soil water content. The quantification of the various water balance components of hydrological processes in a watershed remains a challenging topic [5][6][7][8], because several unknown components, e.g., evapotranspiration and soil water content, included in the water balance are difficult to measure [9]. However, the calculation of water balance components is significant for water resources assessment and management especially for water-scarce regions with regard to assessment of the impact of climate change.…”

Section: Introductionmentioning

confidence: 99%

Assessing Variation in Water Balance Components in Mountainous Inland River Basin Experiencing Climate Change

Yin

Feng

Zou

et al. 2016

Water

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Abstract:Quantification of the changes of water balance components is significant for water resource assessment and management. This paper employed the Soil and Water Assessment Tool (SWAT) model to estimate the water balance in a mountainous watershed in northwest China at different spatial scales over the past half century. The results showed that both Nash-Sutcliffe efficiency (NSE) and determination coefficient (R 2 ) were over 0.90 for the calibration and validation periods. The water balance components presented rising trends at the watershed scale, and the total runoff increased by 30.5% during 1964 to 2013 period. Rising surface runoff and rising groundwater flow contributed 42.7% and 57.3% of the total rising runoff, respectively. The runoff coefficient was sensitive to increasing precipitation and was not significant to the increase of temperature. The alpine meadow was the main landscape which occupied 51.1% of the watershed and contributed 55.5% of the total runoff. Grass land, forest land, bare land, and glacier covered 14.2%, 18.8%, 15.4%, and 0.5% of the watershed and contributed 8.5%, 16.9%, 15.9%, and 3.2% of the total runoff, respectively. The elevation zone from 3500 to 4500 m occupied 66.5% of the watershed area, and contributed the majority of the total runoff (70.7%). The runoff coefficients in the elevation zone from 1637 to 2800 m, 2800 to 3500 m, 3500 to 4000 m, 4000 to 4500 m, and 4500 to 5062 m were 0.20, 0.27, 0.32, 0.43, and 0.78, respectively, which tend to be larger along with the elevation increase. The quantities and change trends of the water balance components at the watershed scale were calculated by the results of the sub-watersheds. Furthermore, we characterized the spatial distribution of quantities and changes in trends of water balance components at the sub-watershed scale analysis. This study provides some references for water resource management and planning in inland river basins.

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“…Historicamente, a atividade humana imprimiu transformações dramáticas na paisagem regional do sudeste brasileiro com a redução da área de floresta de aproximadamente 81% para 8% nos últimos 300 anos (Fujieda et al, 1997).…”

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Hydrological processes at two subtropical forest catchments: the Serra do Mar, São Paulo, Brazil

Cited by 89 publications

References 16 publications

Modelling the hydrological behaviour of a coffee agroforestry basin in Costa Rica

Modelling the hydrological behaviour of a coffee agroforestry basin in Costa Rica

Assessing Variation in Water Balance Components in Mountainous Inland River Basin Experiencing Climate Change

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