Respuesta hidrológica de una cuenca forestal en la montaña media pirenaica : el caso de San Salvador

Muela, M. P. Serrano; Regüés, D.; Latron, Jérôme; Bono, C. Martí; Lana-Renault, Noemí; Nadal‐Romero, Estela

doi:10.18172/cig.1174

Cited by 8 publications

(9 citation statements)

References 9 publications

(16 reference statements)

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“…Such behaviour contrasts with that in more highly vegetated areas of neighbouring catchments in the study area. The Arnás and San Salvador catchments located in the Central Spanish Pyrenees (García-Ruiz et al, 2005;Serrano Muela et al, 2005;Lana-Renault et al, 2007), in the Flysch sector, present different land uses and plant covers. The Arnás catchment (248 ha) is characterized by shrub and open forests in old abandoned fields; while the San Salvador catchment (98 ha) is scarcely affected by human activities and is characterized by the presence of a dense forest cover.…”

Section: Discussionmentioning

confidence: 99%

Temporal distribution of suspended sediment transport in a humid Mediterranean badland area: The Araguás catchment, Central Pyrenees

et al. 2008

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Section: Discussionmentioning

confidence: 99%

Temporal distribution of suspended sediment transport in a humid Mediterranean badland area: The Araguás catchment, Central Pyrenees

et al. 2008

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“…The San Salvador catchment (92 ha) is an east–west tributary of the Estarrún River, within which the bedrock is also Flysch (Figure ). The outlet is at 878 m asl and the highest point is at 1303 m asl, with a mean slope angle of 25° [refer to Serrano‐Muela et al () for further details]. The entire catchment is covered by a dense native forest of P. sylvestris , Fagus sylvatica in concavities of the North‐facing slopes and Quercus gr.…”

Section: Study Areas: the Araguás Afforested And San Salvador Catchmentsmentioning

confidence: 99%

Hydrological response of an afforested catchment in a Mediterranean humid mountain area: a comparative study with a natural forest

Nadal‐Romero

Cammeraat

Serrano-Muela

et al. 2016

Hydrological Processes

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The effects of afforestation on water resources are still controversial. The aim of this paper is to (i) analyse the hydrological response of an afforested area in the Central Pyrenees and (ii) compare the hydrological response of an afforested area with the response observed in a natural undisturbed forest. The Araguás catchment was cultivated until the 1950s, and then afforested with pines in an effort to control the active degradation processes. The hydrological response was variable and complex, because the discharge was generated by a combination of distinct runoff processes. The hydrological response showed that (i) afforestation produced moderate peak discharges, stormflows and recession limbs, and long rising limbs; (ii) no one single variable was able to explain the hydrological response: rainfall volume and intensity did not explain the hydrological response and antecedent rainfall and initial discharge (indicating antecedent moisture conditions) did play an important role; (iii) seasonal differences were observed suggesting different runoff generating processes; and (iv) the effect of forest cover on peak discharges became less important as the size of the hydrological event increased. The stormflow coefficient showed a clear seasonal pattern with an alternation between a wet period, when the catchment was hydrologically responsive, and a dry summer period when the catchment rarely responded to any event, and two transitional periods (wetting and drying). Compared with a natural forest, the afforested area recorded greater flows and peak discharges, faster response times and shorter recession limbs. Afforestation reduces the water yield and the number of floods compared with non-vegetated areas and abandoned lands. Figure 10. Seasonal average and standard deviation of rainfall depth (A) and maximum rainfall intensity (B) during flood events recorded in the Afforestation and San Salvador catchment 2729 HYDROLOGICAL RESPONSE OF AN AFFORESTED AREA IN MEDITERRANEAN MOUNTAIN

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“…However, such impact studies rarely (see for instance Kerr et al, 2002) include detailed hydrological components, though catchment management is generally regarded as a major determinant of hydrological processes (Brooks et al, 2003;Haigh and Křeček, 2000;Harris et al, 2004;Satterlund and Adams, 1992;Whitmore, 1967). Quantitative impact studies may include thorough comparisons of hydrological processes in nearby located similar "twinned" catchments (Bosshart, 1998b;Huang et al, 2003;Serrano Muela et al, 2005;Shipitalo et al, 2000), statistical comparisons of several (generally homogenous but small) catchments (Bingner, 1996;Shipitalo and Edwards, 1998;Shipitalo et al, 2006), model simulations with ground truthing (Bingner, 1996;O'Loughlin et al, 1989;Twery and Hornbeck, 2001), and process monitoring and quantification over several years before and after catchment management (Dragoun and Harrold, 1971;Huang et al, 2003;Huang and Zhang, 2004;Kuhnle et al, 1996;Lacombe et al, 2008;Mu et al, 2007;Schwab et al, 1993;Woldeamlak and Sterk, 2005). General tendencies include increased infiltration and decreased direct runoff after catchment management (Bruijnzeel, 2004;Descheemaeker et al, 2006b;Huang et al, 2003;Kuhnle et al, 1996;Lacombe et al, 2008;Mu et al, 2007;Satterlund and Adams, 1992;Schwab et al, 1993;Shipitalo and Edwards, 1998;Shipitalo et al, 2006;…”

Section: Introductionmentioning

confidence: 99%

Impact of soil and water conservation measures on catchment hydrological response—a case in north Ethiopia

Nyssen

Clymans

Descheemaeker

et al. 2010

Hydrological Processes

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Catchment management in the developing world rarely include detailed hydrological components. Here, changes in the hydrological response of a 200-ha catchment management in north Ethiopia are investigated. The management included various soil and water conservation measures such as the construction of dry masonry stone bunds and check dams, the abandonment of post-harvest grazing and the establishment of woody vegetation. Measurements at the catchment outlet indicated a runoff depth of 5 mm or a runoff coefficient (RC) of 1.6 % in the rainy season of 2006. Combined with runoff measurements at plot scale, this allowed calculating the runoff Curve Number (CN) for various land uses and land management techniques. The pre-implementation runoff depth was then predicted using the CN values and a ponding adjustment factor, representing the abstraction of runoff induced by the 242 check dams in gullies. Using the 2006 rainfall depths, the runoff depth for the 2000 land management situation was predicted to be 26.5 mm (RC = 8 %), in line with current RCs of nearby catchments. Monitoring of the ground water level indicated a rise after catchment management. The yearly rise in water table after the onset of the rains (∆T) relative to the water surplus (WS) over the same period increased between 2002-2003 (∆T/WS = 3.4) and 2006 (∆T/WS >11.1). Emerging wells and irrigation are other indicators for improved water supply in the managed catchment. Cropped fields in the gullies indicate that farmers are less frightened for the destructive effects of flash floods. Due to an increased soil water content, the crop growing period is prolonged. It can be concluded that this catchment management has resulted in a higher infiltration rate and a reduction of direct runoff volume by 81 % which has had a positive influence on the catchment water balance.

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Respuesta hidrológica de una cuenca forestal en la montaña media pirenaica : el caso de San Salvador

Cited by 8 publications

References 9 publications

Temporal distribution of suspended sediment transport in a humid Mediterranean badland area: The Araguás catchment, Central Pyrenees

Temporal distribution of suspended sediment transport in a humid Mediterranean badland area: The Araguás catchment, Central Pyrenees

Hydrological response of an afforested catchment in a Mediterranean humid mountain area: a comparative study with a natural forest

Impact of soil and water conservation measures on catchment hydrological response—a case in north Ethiopia

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