Influence of Groundwater Exploitation for Urban Water Supply on Temporary Ponds from the Doñana National Park (SW Spain)

Serrano, Laura; Serrano, Luis

doi:10.1006/jema.1996.0018

Cited by 62 publications

(50 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dicha situación es aún más extrema cuando el origen de estos efectos es debido al reemplazo del bosque nativo por monocultivos de especies exóticas (Bratton 1990, Serrano & Serrano 1995, Muñoz-Pedreros & Möller 1997, pues al estar relacionados de manera inversa con la cantidad, distribución y disponibilidad de los recursos hídricos (Echeverría et al 2007), debido al mayor requerimiento que t ienen las especies exóticas por dicho recurso gracias a su rápido crecimiento y metabolismo, implican una merma en los aportes de agua hacia estos ecosistemas. Lo anterior, en conjunto con un escenario de cambio climático global (e.g., variaciones de la temperatura) y las características someras de estos ambientes, pueden además provocar la modifi cación del régimen hídrico, reduciendo la frecuencia, duración y tasa de inundación o desecación de estos ecosistemas (Ramírez et al 1995, Gafny & Gasith 1999, Sala et al 2000, Brönmark & Hansson 2002, Perroti et al 2005, Angeler & Moreno 2007, Hulsmans et al 2008, Brooks 2009).…”

Section: Principales Amenazasunclassified

Estado del conocimiento y principales amenazas de los humedales boscosos de agua dulce de Chile

Correa‐Araneda¹,

Urrutia²,

Figueroa³

2011

Rev. chil. hist. nat.

View full text Add to dashboard Cite

RESUMENLos humed ales boscosos de agua dulce son áreas naturalmente inundadas o saturadas, que sustentan vegetación boscosa hidrófi la, están presentes en todo el mundo, y en Chile son conocidos como "pitrantos, hualves o hualhues". El presente estudio entrega el estado del conocimiento de estos humedales en Chile, mediante una descripción de sus características biológicas, fi sicoquímicas e hidrodinámicas, identifi cando las principales amenazas para su conservación y las principales necesidades de investigación. Estos ambientes pueden presentar inundación permanente o temporal, dependiendo de un conjunto de procesos microclimáticos, biológicos y edafológicos. Su vegetación, del tipo hidrófi la boscosa, es dominada por especies de la familia Myrtaceae. Tanto el comportamiento hídrico como la estructura vegetacional destacan dentro de los aspectos que determinan directamente las características fi sicoquímicas del agua y los patrones de distribución de las comunidades biológicas. Los humedales boscosos de Chile han sido ampliamente estudiados desde un punto de vista vegetacional y fl orístico, pero carecen de estudios limnológicos, hidrológicos o faunísticos básicos, de lo cual deriva un total desconocimiento en relación a su funcionamiento a nivel ecosistémico y los efectos que pueden tener las actividades humanas en sus cuencas (e.g., agrícola, ganadera, forestal) sobre sus componentes hídricos y biológicos. A pesar de ser ecosistemas de gran relevancia cultural y ecológica, se identifi can importantes falencias en cuanto a su estado de conservación, al no encontrarse protegidos por las actuales herramientas de conservación existentes en el país. Por lo tanto, emergen como ecosistemas únicos, de relevancia mundial, prácticamente desconocidos en Chile y de gran interés para el desarrollo de numerosas líneas de investigación, aunque su alta susceptibilidad ante perturbaciones de origen antrópico amenaza su permanencia en el tiempo.Palabras clave: agua dulce, Chile, cuencas, humedal boscoso, vegetac ión hidrófi la. ABSTRACTForested freshwater wetlands are naturally fl ooded or saturated areas with hydrophilic forest vegetation which is worldwide distributed and is known as "pitrantos, hualves o hualhues" in Chile. This paper gives to know the state of art of these wetlands in Chile, through a description of its biological, physical-chemical and hydro-dynamic characteristics, identifying the main threats to its conservation and the main research needs. These environments can be permanently or temporarily fl ooded, depending on microclimatic, biological and edaphical processes. Its vegetation is dominated by species of the family Myrtaceae. Both hydric behavior and vegetation structure are major aspects that directly determine the water physical-chemical characteristics and the distribution patterns of biological communities. Chile's forested wetlands have been studied broadly from a vegetation and fl oristic point of view, but basic studies on limnology, hydrology or fauna are lacking, which results on a total lac...

show abstract

Section: Principales Amenazasunclassified

Estado del conocimiento y principales amenazas de los humedales boscosos de agua dulce de Chile

Correa‐Araneda¹,

Urrutia²,

Figueroa³

2011

Rev. chil. hist. nat.

View full text Add to dashboard Cite

show abstract

“…Doñana temporary ponds have no direct connection to the sea except through airborne salt deposition [35]. Serrano and Zunzunegui [36], in a study conducted in six ponds, indicated that some of them may be under threat, since their hydrologic regime may have been damaged by aquifer water extraction by a nearby tourist resort [see also 37]. Scientifically-based management of Doñana National Park requires information on historical flooding patterns, both spatially and temporally, and their relationship with natural fluctuations and anthropogenic modifications [38].…”

Section: Introductionmentioning

confidence: 99%

Evidence of Hydroperiod Shortening in a Preserved System of Temporary Ponds

2010

View full text Add to dashboard Cite

Based on field data simultaneous with Landsat overpasses from six different dates, we developed a robust linear model to predict subpixel fractions of water cover. The model was applied to a time series of 174 Landsat TM and ETM+ images to reconstruct the flooding regime of a system of small temporary ponds and to study their spatio-temporal changes in a 23-year period. We tried to differentiate natural fluctuations from trends in hydrologic variables (i.e., hydroperiod shortening) that may threaten the preservation of the system. Although medium-resolution remote sensing data have rarely been applied to the monitoring of small-sized wetlands, this study evidences its utility to understand the hydrology of temporary ponds at a local scale. We show that the temporary ponds in Doñana National Park constitute a large and heterogeneous system with high intra and inter-annual variability. We also evidence that the conservation value of this ecosystem is threatened by the observed tendency to shorter annual hydroperiods in recent years, probably due to aquifer exploitation. This system of temporary ponds deserves special attention for the high density and heterogeneity of natural ponds, not common in Europe. For this reason, management decisions to avoid its destruction or degradation are critical.

show abstract

“…Water from the ponds is often used for various purposes, such as irrigation of agricultural land, watering of livestock and domestic use. This can occur by direct extraction or by pumping close to the ponds, frequently resulting in the premature drying off of the ponds (Brendonck & Williams 2000, Serrano & Serrano 1996. Artificial drainage of the pond catchment for human purposes in the dry season also shortens the inundation period, which is known to affect organisms that depend on the aquatic phase of the ponds for their reproduction and development (e.g.…”

Section: The European Mtpsmentioning

confidence: 99%

“…Artificial drainage of the pond catchment for human purposes in the dry season also shortens the inundation period, which is known to affect organisms that depend on the aquatic phase of the ponds for their reproduction and development (e.g. amphibians and odonata species), (Grillas et al 2004, Serrano & Serrano 1996. Pollution levels of temporary ponds are generally increasing by intensified agricultural activities with extensive use of pesticides and fertilizers and by domestic and industrial waste and airborne pollutants (Everts 1997, Lahr 1997.…”

Section: The European Mtpsmentioning

confidence: 99%

A “DPSIR” model for Mediterranean temporary ponds : European, national and local scale comparisons

Zacharias

Parasidoy

Bergmeier

et al. 2008

Ann. Limnol. - Int. J. Lim.

View full text Add to dashboard Cite

Influence of Groundwater Exploitation for Urban Water Supply on Temporary Ponds from the Doñana National Park (SW Spain)

Cited by 62 publications

References 15 publications

Estado del conocimiento y principales amenazas de los humedales boscosos de agua dulce de Chile

Estado del conocimiento y principales amenazas de los humedales boscosos de agua dulce de Chile

Evidence of Hydroperiod Shortening in a Preserved System of Temporary Ponds

A “DPSIR” model for Mediterranean temporary ponds : European, national and local scale comparisons

Contact Info

Product

Resources

About