Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment

The drainage basin of the Turrilla river (SE of Spain) went through important land cover changes since 1950s; from mainly an agrarian scenario in 1956 to other depopulated and forested in 2015. This study analyzes the effects of land use changes on fluvial dynamics and their relationship with the or...

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Authors: Halifa-Marín, A., Pérez Cutillas, Pedro, Almagro, M., Martínez-Mena, M., Boix-Fayos, C.
Format: article
Publication Date:2019
Country:España
Institution:Universidad del País Vasco
Repository:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/61235
Online Access:http://hdl.handle.net/10810/61235
Access Level:Open access
Keyword:Land use change
OC reservoirs
OC stock
Organic carbon
Sediment management
Sedimentary deposits
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spelling Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sedimentHalifa-Marín, A.Pérez Cutillas, PedroAlmagro, M.Martínez-Mena, M.Boix-Fayos, C.Land use changeOC reservoirsOC stockOrganic carbonSediment managementSedimentary depositsThe drainage basin of the Turrilla river (SE of Spain) went through important land cover changes since 1950s; from mainly an agrarian scenario in 1956 to other depopulated and forested in 2015. This study analyzes the effects of land use changes on fluvial dynamics and their relationship with the organic carbon (OC) stock in fluvial sedimentary deposits as well as in the soil of the basin. Methods included a fluvial geomorphological analysis and a land use change analysis in combination with OC databases of soil and sediment. Results showed that the fluvial channel experienced important morphological changes related to different erosion processes and stabilization of fluvial deposits, induced by land use changes in the drainage area. The active channel decreased 63% in the study period, while bank erosion and gully erosion increased (34% and 21 %, respectively). Alluvial fans and alluvial plain were also extended (21% and 7 %, respectively) and alluvial bars were colonized by vegetation. Sediment was impoverished in OC compared to catchment soils (0.24 enrichment ratio sediment/soil). However the increase of OC stock (Mg ha-1) was very similar between soil (25 %) and sediment (23 %). The total reservoir of OC (Mg) increased 27% in sediments and 25% in the catchment soils. Results show the large influence of geomorphological dynamics on the OC reservoir at the catchment scale. A very high potential of fluvial sediments to increase OC sinks was observed, particularly in scenarios where the active channel is narrowed and the fluvial channel is encroached with vegetation, facilitating the input of OC in sediment. The potential of sediment to sequester organic carbon could be very useful in planning and management of fluvial sedimentary zones in climate change mitigation policies. © 2019, Universidad Austral de Chile. All rights reserved.Este estudio ha recibido apoyo financiero del proyecto DISECO (CGL2014-55405-R) del Plan Nacional de Ciencia del Ministerio de Economía y Competitividad de España, del proyecto SOGLO (P7/24 IAP BELSPO) del gobierno de Bélgica. AHM recibió apoyo financiero para una estancia en la Universidad Nacional de Córdoba (Argentina) del Banco de Santander mediante el Convenio Becas de Intercambio Latinoamérica (Programa ILA). CBF recibió apoyo financiero para dos estancias en el extranjero del programa Salvador de Madariaga 2017 (Ministerio de Educación, Cultura y Deporte, Gobierno de España) y del programa Jiménez de la Espada 2017 (Fundación Séneca, Agencia de Ciencia y Tecnología de la Región de Murcia). MAB fue parcialmente financiada por un contrato Juan de la Cierva-Incorporación (Ref: IJCI-2015-23500). Todas estas estancias permitieron el trabajo continuado en la redacción de este artículo.Bosque202320232019info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/61235reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO/CGL2014-55405-R/info:eu-repo/grantAgreement/MINECO/IJCI-2015-23500/https://dx.doi.org/10.4067/S0717-92002019000100003info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/3.0/es/© 2019, Universidad Austral de Chile. All rights reserved.Atribución-NoComercial-CompartirIgual 3.0 Españaoai:addi.ehu.eus:10810/612352026-06-18T09:23:17Z
dc.title.none.fl_str_mv Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
title Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
spellingShingle Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
Halifa-Marín, A.
Land use change
OC reservoirs
OC stock
Organic carbon
Sediment management
Sedimentary deposits
title_short Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
title_full Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
title_fullStr Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
title_full_unstemmed Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
title_sort Fluvial geomorphological dynamics and land use changes: impact on the organic carbon stocks of soil and sediment
dc.creator.none.fl_str_mv Halifa-Marín, A.
Pérez Cutillas, Pedro
Almagro, M.
Martínez-Mena, M.
Boix-Fayos, C.
author Halifa-Marín, A.
author_facet Halifa-Marín, A.
Pérez Cutillas, Pedro
Almagro, M.
Martínez-Mena, M.
Boix-Fayos, C.
author_role author
author2 Pérez Cutillas, Pedro
Almagro, M.
Martínez-Mena, M.
Boix-Fayos, C.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Land use change
OC reservoirs
OC stock
Organic carbon
Sediment management
Sedimentary deposits
topic Land use change
OC reservoirs
OC stock
Organic carbon
Sediment management
Sedimentary deposits
description The drainage basin of the Turrilla river (SE of Spain) went through important land cover changes since 1950s; from mainly an agrarian scenario in 1956 to other depopulated and forested in 2015. This study analyzes the effects of land use changes on fluvial dynamics and their relationship with the organic carbon (OC) stock in fluvial sedimentary deposits as well as in the soil of the basin. Methods included a fluvial geomorphological analysis and a land use change analysis in combination with OC databases of soil and sediment. Results showed that the fluvial channel experienced important morphological changes related to different erosion processes and stabilization of fluvial deposits, induced by land use changes in the drainage area. The active channel decreased 63% in the study period, while bank erosion and gully erosion increased (34% and 21 %, respectively). Alluvial fans and alluvial plain were also extended (21% and 7 %, respectively) and alluvial bars were colonized by vegetation. Sediment was impoverished in OC compared to catchment soils (0.24 enrichment ratio sediment/soil). However the increase of OC stock (Mg ha-1) was very similar between soil (25 %) and sediment (23 %). The total reservoir of OC (Mg) increased 27% in sediments and 25% in the catchment soils. Results show the large influence of geomorphological dynamics on the OC reservoir at the catchment scale. A very high potential of fluvial sediments to increase OC sinks was observed, particularly in scenarios where the active channel is narrowed and the fluvial channel is encroached with vegetation, facilitating the input of OC in sediment. The potential of sediment to sequester organic carbon could be very useful in planning and management of fluvial sedimentary zones in climate change mitigation policies. © 2019, Universidad Austral de Chile. All rights reserved.
publishDate 2019
dc.date.none.fl_str_mv 2019
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/61235
url http://hdl.handle.net/10810/61235
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/CGL2014-55405-R/
info:eu-repo/grantAgreement/MINECO/IJCI-2015-23500/
https://dx.doi.org/10.4067/S0717-92002019000100003
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/3.0/es/
© 2019, Universidad Austral de Chile. All rights reserved.
Atribución-NoComercial-CompartirIgual 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/3.0/es/
© 2019, Universidad Austral de Chile. All rights reserved.
Atribución-NoComercial-CompartirIgual 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Bosque
publisher.none.fl_str_mv Bosque
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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