Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain

The pedological implications of lake water level fluctuations are complex, especially in lake margin, where topographical, hydrological, and sedimentary conditions are most variable. Lake water level fluctuations generate landscape elements, which provide insights into the processes involved in soil...

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Detalles Bibliográficos
Autores: Castañeda del Alamo, Carmen, Gracia, F. Javier, Luna, E., Rodríguez Ochoa, Rafael
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/65052
Acceso en línea:https://doi.org/10.1016/j.geoderma.2014.11.005
http://hdl.handle.net/10459.1/65052
Access Level:acceso abierto
Palabra clave:Holocene
Lacustrine
Playa-lake
Saline
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spelling Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE SpainCastañeda del Alamo, CarmenGracia, F. JavierLuna, E.Rodríguez Ochoa, RafaelHoloceneLacustrinePlaya-lakeSalineThe pedological implications of lake water level fluctuations are complex, especially in lake margin, where topographical, hydrological, and sedimentary conditions are most variable. Lake water level fluctuations generate landscape elements, which provide insights into the processes involved in soil development and the extent of the zones affected by flooding/desiccation. Coupling information from detailed geomorphological inspections in the field, the mapping of the lakeshore, and the pedogenesis of each landscape element can provide a better understanding of these relationships, which was used to study the saline Gallocanta Lake, NE Spain, a semiarid intramontane lacustrine system that undergoes significant and rapid water level fluctuations. Geomorphic classification of the lake margin forms and environments served as a guide for soil sampling. The geomorphological survey revealed high diversity and contrast in the lake margin environment, from shores affected by coastal erosion to zones characterized by progradation/aggradation. Two soil toposequences and 11 pedons that were on different geomorphic units were studied on two margins of the lake. Following gradients in elevation, moisture, and salinity, soils showed a succession of Inceptisols to Aridisols, with Mollisols developed at intermediate positions and Aquic soils at the lake floor and southern shore. Soils had a sandy, loamy texture and a predominantly carbonatic composition, high variation in CCE (mean = 37%), texture, and coarse fragments throughout the soil profiles. Soil salinity was the highest at the lowest topographic position and in the upper soil horizons, where mean ECe = 188.6 dS m− 1 at 25 °C. In addition, the highest organic matter (6%) and gypsum (34%) content occurred at the lake floor. Soil color characteristics and concentrations, and depletions of Fe and Mn indicated redox changes associated with soil water saturation under carbonate and or saline conditions. Macro and micromorphological features of oxidized and reduced horizons indicated the alternation between palustrine (reduced) and non-palustrine (detrital, emerged, oxidized) events at different geomorphic and topographic positions, from the lake floor up to 7 m above it. Pedogenesis inferred and the littoral/submerged forms located at permanently emerged areas confirmed the past and present trend towards the desiccation of the lake. This study has improved our understanding of how soils form and develop within the context of geomorphic units, and can be used in making land-use decisions in the protected reserve and agricultural surroundings of the lake.This article is a result of the research project AGL2012-40100 funded by the MINECO and is a contribution to Andalusian Research Group P.A.I. RNM-328. We acknowledge the data provided by the Spanish Meteorological Agency (AEMET). E. Luna was financed by a fellowship from the Government of Aragón, Spain. The 2006 orthoimages and LIDAR data were supplied by the National Geographic Institute of Spain (Instituto Geográfico Nacional).Elsevier2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttps://doi.org/10.1016/j.geoderma.2014.11.005http://hdl.handle.net/10459.1/65052reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MINECO//AGL2012-40100-C02-01Versió postprint del document publicat a https://doi.org/10.1016/j.geoderma.2014.11.005Geoderma, 2015, vol. 239–240, p. 265-279cc-by-nc-nd (c) Elsevier, 2015info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:repositori.udl.cat:10459.1/650522026-06-24T12:42:17Z
dc.title.none.fl_str_mv Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
title Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
spellingShingle Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
Castañeda del Alamo, Carmen
Holocene
Lacustrine
Playa-lake
Saline
title_short Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
title_full Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
title_fullStr Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
title_full_unstemmed Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
title_sort Edaphic and geomorphic evidences of water level fluctuations in Gallocanta Lake, NE Spain
dc.creator.none.fl_str_mv Castañeda del Alamo, Carmen
Gracia, F. Javier
Luna, E.
Rodríguez Ochoa, Rafael
author Castañeda del Alamo, Carmen
author_facet Castañeda del Alamo, Carmen
Gracia, F. Javier
Luna, E.
Rodríguez Ochoa, Rafael
author_role author
author2 Gracia, F. Javier
Luna, E.
Rodríguez Ochoa, Rafael
author2_role author
author
author
dc.subject.none.fl_str_mv Holocene
Lacustrine
Playa-lake
Saline
topic Holocene
Lacustrine
Playa-lake
Saline
description The pedological implications of lake water level fluctuations are complex, especially in lake margin, where topographical, hydrological, and sedimentary conditions are most variable. Lake water level fluctuations generate landscape elements, which provide insights into the processes involved in soil development and the extent of the zones affected by flooding/desiccation. Coupling information from detailed geomorphological inspections in the field, the mapping of the lakeshore, and the pedogenesis of each landscape element can provide a better understanding of these relationships, which was used to study the saline Gallocanta Lake, NE Spain, a semiarid intramontane lacustrine system that undergoes significant and rapid water level fluctuations. Geomorphic classification of the lake margin forms and environments served as a guide for soil sampling. The geomorphological survey revealed high diversity and contrast in the lake margin environment, from shores affected by coastal erosion to zones characterized by progradation/aggradation. Two soil toposequences and 11 pedons that were on different geomorphic units were studied on two margins of the lake. Following gradients in elevation, moisture, and salinity, soils showed a succession of Inceptisols to Aridisols, with Mollisols developed at intermediate positions and Aquic soils at the lake floor and southern shore. Soils had a sandy, loamy texture and a predominantly carbonatic composition, high variation in CCE (mean = 37%), texture, and coarse fragments throughout the soil profiles. Soil salinity was the highest at the lowest topographic position and in the upper soil horizons, where mean ECe = 188.6 dS m− 1 at 25 °C. In addition, the highest organic matter (6%) and gypsum (34%) content occurred at the lake floor. Soil color characteristics and concentrations, and depletions of Fe and Mn indicated redox changes associated with soil water saturation under carbonate and or saline conditions. Macro and micromorphological features of oxidized and reduced horizons indicated the alternation between palustrine (reduced) and non-palustrine (detrital, emerged, oxidized) events at different geomorphic and topographic positions, from the lake floor up to 7 m above it. Pedogenesis inferred and the littoral/submerged forms located at permanently emerged areas confirmed the past and present trend towards the desiccation of the lake. This study has improved our understanding of how soils form and develop within the context of geomorphic units, and can be used in making land-use decisions in the protected reserve and agricultural surroundings of the lake.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.geoderma.2014.11.005
http://hdl.handle.net/10459.1/65052
url https://doi.org/10.1016/j.geoderma.2014.11.005
http://hdl.handle.net/10459.1/65052
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO//AGL2012-40100-C02-01
Versió postprint del document publicat a https://doi.org/10.1016/j.geoderma.2014.11.005
Geoderma, 2015, vol. 239–240, p. 265-279
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier, 2015
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier, 2015
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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