Respuesta hidro-sedimentaria en dos cuencas mediterráneas representativas afectadas por el cambio global

Calsamiglia, Aleix; Fortesa, Josep; García-Comendador, Julián; Estrany, Joan

doi:10.17735/cyg.v30i1-2.45900

Cited by 5 publications

(4 citation statements)

References 25 publications

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“…Large annual runoff values usually corresponded to watertight catchments as reported by Didon-Lescot et al [36] who estimated runoff values higher than 1000 mm yr -1 for two small Mediterranean catchments on granite bedrock. However, high annual runoff values were also unusually reported by Calsamiglia et al [51] in a karstic environment at Mallorca island, as a result from incoming spring sources in the middle part of the catchment. Then, accordingly to the conceptual model of Borg Galea et al [2], the climate is the main driver of the rainfall-runoff relationship but catchment geology is the main conditioning factor.…”

Section: Discussion On Hydrological Responses At Small Mediterranean supporting

confidence: 70%

Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean Catchments

Fortesa¹,

García-Comendador²,

Calsamiglia³

et al. 2019

Preprint

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Mediterranean catchments are characterized by significant spatial and temporal hydrological variability caused by the interaction of natural as well human-induced abiotic and biotic factors. This study investigates the (non-)linearity rainfall-runoff relationship at multiple temporal scales in representative small Mediterranean catchments (i.e., < 10 km2) to achieve a better understanding of the hydrological response. Rainfall-runoff relationship was evaluated in 44 catchments at annual and event –203 events in 12 of these 44 catchments– scales. A linear rainfall-runoff relation was observed at annual scale with higher scatter in pervious than impervious catchments. Larger scattering was observed at event scale, although pervious lithology and agricultural land use promoted significant rainfall-runoff linear relations in winter and spring. These relationships were particularly analysed during five hydrological years in Es Fangar catchment (3.35 km2; Mallorca, Spain) as a temporal downscaling to assess intra-annual variability in which antecedent wetness conditions played a significant role in runoff generation.

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Section: Discussion On Hydrological Responses At Small Mediterranean supporting

confidence: 70%

Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean Catchments

Fortesa¹,

García-Comendador²,

Calsamiglia³

et al. 2019

Preprint

Self Cite

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“…Unlike soil thickness, antecedent rainfall (or soil moisture) conditions negatively affect sink behaviour and favour large-scale runoff connections of terraced landscapes. These effects may be particularly significant in subhumid and humid environments, where water table rise and perched saturation usually cause the progressive expansion of saturated areas during wet periods, enhancing saturation excess runoff and, therefore, facilitating the formation of well-connected flows between local runoff sources and catchment streams (Gallart et al, 1994(Gallart et al, , 2002Latron and Gallart, 2008;Lana-Renault et al, 2014;Calsamiglia et al, 2016;Nadal-Romero et al, 2016).…”

Section: Key Factors Controlling Wider-scale Hydrological Connectivitymentioning

confidence: 99%

“…Indirectly related to surface cover and soil conditions, both fire occurrence and overgrazing greatly increase the activity of surface wash processes in abandoned terrace systems (Lehmann, 1993;Calsamiglia et al, 2016). Plot-scale erosion studies in old abandoned terraces disturbed by wildfires highlighted that enhanced runoff production and soil erodibility after fire occurrence can increase soil loss by one order of magnitude (Rodríguez-Aizpeloa et al, 1991;Lourenço et al, 2014;Pardini et al, 2017).…”

Section: Key Factors Controlling Surface Wash Erosion Dynamicsmentioning

confidence: 99%

Hydro-geomorphological consequences of the abandonment of agricultural terraces in the Mediterranean region: Key controlling factors and landscape stability patterns

et al. 2019

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Traditional cultivation terraces are one of the most ancient and conspicuous agricultural landscapes in mountain and hilly regions of the Mediterranean basin.Spreading out from Asia, the first terraces in the Mediterranean region date from the Bronze Age and the classical Hellenic and Roman periods, reaching their greatest spatial extent during the eighteenth and nineteenth centuries. Under optimum management, these systems contribute to the conservation of soil and water resources by increasing infiltration and decreasing sediment yield. However, traditional management and cultivation ceased on many terraced landscapes of the northern-shore Mediterranean countries during the twentieth century, with variable results. An extensive bibliographic review and meta-analysis was carried out to explore the main effects of land abandonment of Mediterranean agricultural terraces on local hydrological and geomorphological processes. Our results point to the development of vegetation cover and degradation of terraced structures (e.g., walls, terrace risers, channels) as the main critical factors controlling the hydrological behaviour (i.e., runoff production and hydrological connectivity) of abandoned terrace systems. Severe geomorphological problems, in the form of intense surface erosion, aggressive piping and gullying, occurred under special climatic (semi-arid climate), lithologic (dispersive marls) and structural (high vertical hydraulic gradient) conditions. Dense colonization by vegetation proved to be of major importance for controlling surface erosion. Vegetation, however, showed a limited capacity to control the activity of mass movements in most cases. Mass movements in the form of small soil slips primarily affected long-abandoned terraces in hillslope concavities and valley bottom positions that concentrate (surface and subsurface) water fluxes and show recurrent soil saturation. In humid terraced landscapes characterized by high hillslope gradients and terrace risers, the most devastating effects of mass movements took place in the form of 3 debris slips and terrace cascading landslides triggered by extreme rainfall. A variety of management options (non-intervention, stewardship of natural rewilding processes and active rehabilitation) can be applied, depending on vegetation development potential, site hydro-geomorphic vulnerability and local socio-economic interests. Effective conservation approaches will be required to preserve the environmental, socio-cultural and historical values of these ancient anthropogenic landscapes.

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“…However, karstic environments can also promote very high annual R values, e.g., Ref. [55], as a result of incoming karstic spring sources. The conceptual model developed by Borg Galea et al [2], which is based in exogenous and endogenous variables that link natural and human-derived variables and their influences in the system on a spatial-temporal scale, emphasized that climate is the main exogenous driver of the rainfall-runoff relationship, although their processes through precipitation, temperature and wind are mediated by catchment geology (endogenous variable).…”

Section: Small Mediterranean-climate Catchments: Lithology Influencesmentioning

confidence: 99%

Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean-Climate Catchments

Fortesa

Latron

García-Comendador

et al. 2020

Water

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Mediterranean-climate catchments are characterized by significant spatial and temporal hydrological variability caused by the interaction of natural as well human-induced abiotic and biotic factors. This study investigates the non-linearity of rainfall-runoff relationship at multiple temporal scales in representative small Mediterranean-climate catchments (i.e., <10 km2) to achieve a better understanding of their hydrological response. The rainfall-runoff relationship was evaluated in 43 catchments at annual and event—203 events in 12 of these 43 catchments—scales. A linear rainfall-runoff relationship was observed at an annual scale, with a higher scatter in pervious (R2: 0.47) than impervious catchments (R2: 0.82). Larger scattering was observed at the event scale, although pervious lithology and agricultural land use promoted significant rainfall-runoff linear relations in winter and spring. These relationships were particularly analysed during five hydrological years in the Es Fangar catchment (3.35 km2; Mallorca, Spain) as a temporal downscaling to assess the intra-annual variability, elucidating whether antecedent wetness conditions played a significant role in runoff generation. The assessment of rainfall-runoff relationships under contrasted lithology, land use and seasonality is a useful approach to improve the hydrological modelling of global change scenarios in small catchments where the linearity and non-linearity of the hydrological response—at multiple temporal scales—can inherently co-exist in Mediterranean-climate catchments.

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Respuesta hidro-sedimentaria en dos cuencas mediterráneas representativas afectadas por el cambio global

Cited by 5 publications

References 25 publications

Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean Catchments

Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean Catchments

Hydro-geomorphological consequences of the abandonment of agricultural terraces in the Mediterranean region: Key controlling factors and landscape stability patterns

Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean-Climate Catchments

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