The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)

Erosion causes significant soil and nutrient losses that can reach streams and degrade habitats. Phosphorus (P) is among the nutrients of greatest concern for water pollution. Due to the increase in the number of storm events over the last decade, which could rise further under climate change scenar...

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Autores: Ramos Martín, Ma. C. (Ma. Concepción), Lizaga, Ivan, Gaspar, Leticia, Navas, Ana
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/83944
Acceso en línea:https://doi.org/10.1016/j.catena.2022.106407
http://hdl.handle.net/10459.1/83944
Access Level:acceso abierto
Palabra clave:Northern Ebro valley
Stream order
Ephemeral streams
Land use
P-binding
Sòls--Erosió
Sediments fluvials
Cabal (Hidrologia)
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spelling The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)Ramos Martín, Ma. C. (Ma. Concepción)Lizaga, IvanGaspar, LeticiaNavas, AnaNorthern Ebro valleyStream orderEphemeral streamsLand useP-bindingSòls--ErosióSediments fluvialsCabal (Hidrologia)Erosion causes significant soil and nutrient losses that can reach streams and degrade habitats. Phosphorus (P) is among the nutrients of greatest concern for water pollution. Due to the increase in the number of storm events over the last decade, which could rise further under climate change scenarios, a more in-depth analysis of the effect of rainfall on the behaviour of P in fragile environments is needed. Little is known about the mobilisation and export of P in mountainous Mediterranean agroecosystems. To contribute to this knowledge, this research analysed the variability of P in the sediments of streambeds of different orders in an agroforestry area of the Northern Ebro Basin (Arag ' on, Spain) following an exceptional rainfall event; the implications of different land uses were also explored. Sediment composition was assessed before and after the rainfall event in three nested subcatchments and then related to soil properties. Phosphorus was mostly linked to the mineral fraction (mainly to silicates), while the links between P with clay and organic matter (P-clay, P-OM) were very weak. The P-OM links occurred only in the soils of forested areas. Agricultural lands, which are prone to erosion and had the highest P concentrations, contribute to P release. However, the streambeds and the lateral erosion of channel banks by floods triggered by the rainfall event should be considered as the main contributors to the export of P. The high intensity rainfall event led to 35% and 60% reductions in clay and OM, respectively, and to an enrichment of P in the sediments, the concentrations of which were lower in the headwaters than downstream. This means that the P in streambeds remains exposed in relatively high concentrations following extreme rainfall events with implications for the P cycle and water pollution.This research is part of the Project I+D+i PID2019-104857RB-I00, funded by the MCIN/AEI/10.13039/501100011033/.Elsevier202220222022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.1016/j.catena.2022.106407http://hdl.handle.net/10459.1/83944http://hdl.handle.net/10459.1/83944reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésMINECO/PN2017-2020/AEI/10.13039/501100011033info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104857RB-I00Reproducció del document publicat a https://doi.org/10.1016/j.catena.2022.106407Catena, 2022, vol. 216, núm. 106407, p. 1-10cc-by-nc-nd (c) Ramos Martín et al., 2022info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:recercat.cat:10459.1/839442026-05-29T05:05:01Z
dc.title.none.fl_str_mv The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
title The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
spellingShingle The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
Ramos Martín, Ma. C. (Ma. Concepción)
Northern Ebro valley
Stream order
Ephemeral streams
Land use
P-binding
Sòls--Erosió
Sediments fluvials
Cabal (Hidrologia)
title_short The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
title_full The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
title_fullStr The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
title_full_unstemmed The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
title_sort The impacts of exceptional rainfall on phosphorus mobilisation in a mountain agroforestry catchment (NE, Spain)
dc.creator.none.fl_str_mv Ramos Martín, Ma. C. (Ma. Concepción)
Lizaga, Ivan
Gaspar, Leticia
Navas, Ana
author Ramos Martín, Ma. C. (Ma. Concepción)
author_facet Ramos Martín, Ma. C. (Ma. Concepción)
Lizaga, Ivan
Gaspar, Leticia
Navas, Ana
author_role author
author2 Lizaga, Ivan
Gaspar, Leticia
Navas, Ana
author2_role author
author
author
dc.subject.none.fl_str_mv Northern Ebro valley
Stream order
Ephemeral streams
Land use
P-binding
Sòls--Erosió
Sediments fluvials
Cabal (Hidrologia)
topic Northern Ebro valley
Stream order
Ephemeral streams
Land use
P-binding
Sòls--Erosió
Sediments fluvials
Cabal (Hidrologia)
description Erosion causes significant soil and nutrient losses that can reach streams and degrade habitats. Phosphorus (P) is among the nutrients of greatest concern for water pollution. Due to the increase in the number of storm events over the last decade, which could rise further under climate change scenarios, a more in-depth analysis of the effect of rainfall on the behaviour of P in fragile environments is needed. Little is known about the mobilisation and export of P in mountainous Mediterranean agroecosystems. To contribute to this knowledge, this research analysed the variability of P in the sediments of streambeds of different orders in an agroforestry area of the Northern Ebro Basin (Arag ' on, Spain) following an exceptional rainfall event; the implications of different land uses were also explored. Sediment composition was assessed before and after the rainfall event in three nested subcatchments and then related to soil properties. Phosphorus was mostly linked to the mineral fraction (mainly to silicates), while the links between P with clay and organic matter (P-clay, P-OM) were very weak. The P-OM links occurred only in the soils of forested areas. Agricultural lands, which are prone to erosion and had the highest P concentrations, contribute to P release. However, the streambeds and the lateral erosion of channel banks by floods triggered by the rainfall event should be considered as the main contributors to the export of P. The high intensity rainfall event led to 35% and 60% reductions in clay and OM, respectively, and to an enrichment of P in the sediments, the concentrations of which were lower in the headwaters than downstream. This means that the P in streambeds remains exposed in relatively high concentrations following extreme rainfall events with implications for the P cycle and water pollution.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.catena.2022.106407
http://hdl.handle.net/10459.1/83944
http://hdl.handle.net/10459.1/83944
url https://doi.org/10.1016/j.catena.2022.106407
http://hdl.handle.net/10459.1/83944
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv MINECO/PN2017-2020/AEI/10.13039/501100011033
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104857RB-I00
Reproducció del document publicat a https://doi.org/10.1016/j.catena.2022.106407
Catena, 2022, vol. 216, núm. 106407, p. 1-10
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Ramos Martín et al., 2022
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
rights_invalid_str_mv cc-by-nc-nd (c) Ramos Martín et al., 2022
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:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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