A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)

A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)

12 páginas, 3 figuras, 3 tablas, 36 referencias, 1 apéndice: 2 anexos.

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Bibliographic Details
Main Authors: Espinar, José L., Serrano, Laura
Other Authors: Ministerio de Medio Ambiente (España)
Format: artículo biblioteca
Language:English
Published: Springer 2009
Subjects:Hydroperiod, Macrophytes, Mediterranean wetlands, Multivariate analyses, Salinity,
Online Access:http://hdl.handle.net/10261/38094
http://dx.doi.org/10.13039/501100011011
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spelling dig-irnas-es-10261-380942015-10-15T07:58:20Z A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain) Espinar, José L. Serrano, Laura Ministerio de Medio Ambiente (España) Junta de Andalucía Hydroperiod Macrophytes Mediterranean wetlands Multivariate analyses Salinity 12 páginas, 3 figuras, 3 tablas, 36 referencias, 1 apéndice: 2 anexos. A quantitative hydrogeomorphic approach was applied to an extensive survey of temporary wetlands in the Doñana National Park (SW Spain) in search for quantitative thresholds for wetland classification. Twenty freshwater ponds on the aeolian sand mantle and 46 sites on silty-clay substrate, located in the southern marshland, were surveyed during the heaviest rainy period so far recorded (October 1995–September 1997). On average, temporary ponds showed higher water depth, longer flooding period, lower conductivity (\0.5 mS cm-1), lower pH (6.7), lower phosphate concentration (0.4 lM) and amore balanced proportion of Ca2+/Na+ than temporary marshes. During floods, marshland sites exhibited higher water transparency, pH (9.5), alkalinity (3.5 meq l-1), conductivity (8.2 mS cm-1), phosphate concentration (0.7 lM), Na+ and Ca2+ concentrations (97.2 and 3.5 meq l-1, respectively) than ponds. Study sites were significantly segregated (ANOSIM test: R = 0.88, P\0.01, n = 92) in relation to water depth and conductivity. A conductivity of 1.6 mS cm-1 is proposed as a threshold between marshland sites and ponds during floods. Marshland sites were further segregated into two groups (ANOSIM test: R = 0.777, P\0.01, n = 23) according to the Na+/Ca2+ ratio (in meq l-1) at a threshold value of 25. An ordination by PCA showed that five variables grouped 81.4%of the total variance in two axes. The first PCA axis (60.7% of variance) separated temporary wetlands into ponds andmarshland sites according to variables related to substrate and hydrology (Na+/Ca2+ ratio, conductivity, water depth and flooding period). Other variables (e.g., water transparency, alkalinity, pH, submersed macrophyte biomass, phosphate, nitrate and planktonic chlorophyll concentrations) did not produce a significant segregation between marshland and pond sites during floods. Further discrimination within each wetland type was thus not achieved. Financial support came from the Spanish Ministry of the Environment (MMA, project 05/99), CICYT (AMB95-1054) and the Junta de Andalucía (research groups #4086 and 4033). Peer reviewed 2011-07-28T11:59:18Z 2011-07-28T11:59:18Z 2009 artículo http://purl.org/coar/resource_type/c_6501 Aquatic Ecology 43 (2): 323-334 (2009) 1386-2588 http://hdl.handle.net/10261/38094 10.1007/s10452-007-9162-7 http://dx.doi.org/10.13039/501100011011 en http://dx.doi.org/10.1007/s10452-007-9162-7 none Springer
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic Hydroperiod
Macrophytes
Mediterranean wetlands
Multivariate analyses
Salinity
Hydroperiod
Macrophytes
Mediterranean wetlands
Multivariate analyses
Salinity
spellingShingle Hydroperiod
Macrophytes
Mediterranean wetlands
Multivariate analyses
Salinity
Hydroperiod
Macrophytes
Mediterranean wetlands
Multivariate analyses
Salinity
Espinar, José L.
Serrano, Laura
A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)
description 12 páginas, 3 figuras, 3 tablas, 36 referencias, 1 apéndice: 2 anexos.
author2 Ministerio de Medio Ambiente (España)
author_facet Ministerio de Medio Ambiente (España)
Espinar, José L.
Serrano, Laura
format artículo
topic_facet Hydroperiod
Macrophytes
Mediterranean wetlands
Multivariate analyses
Salinity
author Espinar, José L.
Serrano, Laura
author_sort Espinar, José L.
title A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)
title_short A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)
title_full A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)
title_fullStr A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)
title_full_unstemmed A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)
title_sort quantitative hydrogeomorphic approach to the classification of temporary wetlands in the doñana national park (sw spain)
publisher Springer
publishDate 2009
url http://hdl.handle.net/10261/38094
http://dx.doi.org/10.13039/501100011011
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AT serranolaura quantitativehydrogeomorphicapproachtotheclassificationoftemporarywetlandsinthedonananationalparkswspain
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