Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina

Climate change affects the hydrological regimes of rivers. The water recession in times of drought negatively transform the wetlands. The structural and functional alteration that they produce in them mainly modifies the plant productivity and soils, and this is aggravated when fires occur. For the...

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Detalles Bibliográficos
Autores principales: Montico , Sergio, Di Leo, Néstor Cristian, Berardi, José Alberto
Formato: Artículo revista
Lenguaje:Español
Publicado: CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2023
Materias:
suelos
humedales
delta
incendios
soils
wetlands
fires
Acceso en línea:https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/199
Aporte de:
Cuadernos del CURIHAM de Universidad Nacional de Rosario
id I15-R229-article-199
record_format ojs
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-229
container_title_str Cuadernos del CURIHAM
language Español
format Artículo revista
topic suelos
humedales
delta
incendios
soils
wetlands
delta
fires
spellingShingle suelos
humedales
delta
incendios
soils
wetlands
delta
fires
Montico , Sergio
Di Leo, Néstor Cristian
Berardi, José Alberto
Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina
topic_facet suelos
humedales
delta
incendios
soils
wetlands
delta
fires
author Montico , Sergio
Di Leo, Néstor Cristian
Berardi, José Alberto
author_facet Montico , Sergio
Di Leo, Néstor Cristian
Berardi, José Alberto
author_sort Montico , Sergio
title Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina
title_short Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina
title_full Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina
title_fullStr Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina
title_full_unstemmed Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina
title_sort drought, water level drop and effects of fires on soils in the paraná delta, argentina
description Climate change affects the hydrological regimes of rivers. The water recession in times of drought negatively transform the wetlands. The structural and functional alteration that they produce in them mainly modifies the plant productivity and soils, and this is aggravated when fires occur. For the years 2017, 2019, 2020 and 2022, the water coverage of the Upper Delta of the Paraná River was estimated through satellite images, and the effects on some edaphic properties caused by fires were evaluated in a sector of an island of the same wetland. The water cover was estimated using Sentinel 2 A/B satellite image mosaics. Geoprocessing tasks were performed on Google Earth Engine. The state of the soils was characterized in 18 positions that had different severities of burning. The combined effect of a pronounced drop in the river level with a very intense climatic drought strongly conditioned the surface covered by water in the wetland area. The fires had negative effects mainly on the soils of the sites with the highest burning severity in two chemical variables and in one physical-mechanical variable. If these environmental combinations are repeated, the wetland will riskily increase its ecosystem vulnerability.
publisher CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa
publishDate 2023
url https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/199
work_keys_str_mv AT monticosergio droughtwaterleveldropandeffectsoffiresonsoilsintheparanadeltaargentina
AT dileonestorcristian droughtwaterleveldropandeffectsoffiresonsoilsintheparanadeltaargentina
AT berardijosealberto droughtwaterleveldropandeffectsoffiresonsoilsintheparanadeltaargentina
AT monticosergio sequiabajanteyefectosdelosincendiosensuelosdeldeltadelparanaargentina
AT dileonestorcristian sequiabajanteyefectosdelosincendiosensuelosdeldeltadelparanaargentina
AT berardijosealberto sequiabajanteyefectosdelosincendiosensuelosdeldeltadelparanaargentina
first_indexed 2023-06-26T22:45:32Z
last_indexed 2025-02-13T23:12:26Z
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spelling I15-R229-article-1992025-02-10T18:29:05Z Drought, water level drop and effects of fires on soils in the Paraná delta, Argentina Sequía, bajante y efectos de los incendios en suelos del delta del Paraná, Argentina Montico , Sergio Di Leo, Néstor Cristian Berardi, José Alberto suelos humedales delta incendios soils wetlands delta fires Climate change affects the hydrological regimes of rivers. The water recession in times of drought negatively transform the wetlands. The structural and functional alteration that they produce in them mainly modifies the plant productivity and soils, and this is aggravated when fires occur. For the years 2017, 2019, 2020 and 2022, the water coverage of the Upper Delta of the Paraná River was estimated through satellite images, and the effects on some edaphic properties caused by fires were evaluated in a sector of an island of the same wetland. The water cover was estimated using Sentinel 2 A/B satellite image mosaics. Geoprocessing tasks were performed on Google Earth Engine. The state of the soils was characterized in 18 positions that had different severities of burning. The combined effect of a pronounced drop in the river level with a very intense climatic drought strongly conditioned the surface covered by water in the wetland area. The fires had negative effects mainly on the soils of the sites with the highest burning severity in two chemical variables and in one physical-mechanical variable. If these environmental combinations are repeated, the wetland will riskily increase its ecosystem vulnerability. El cambio climático influye sobre los regímenes hidrológicos de los ríos. Las bajantes en épocas de sequía transforman negativamente a los humedales. La alteración estructural y funcional que producen en ellos, modifica principalmente la productividad vegetal y los suelos, y esto se agrava cuando ocurren incendios. Para los años 2017, 2019, 2020 y 2022 se estimó la cobertura de agua del Delta Superior del río Paraná mediante imágenes satelitales, y se evaluaron los efectos en algunas propiedades edáficas causados por incendios en un sector de una isla del mismo humedal. La cobertura de agua se estimó a partir de mosaicos de imágenes satelitales Sentinel 2 A/B. Las tareas de geoprocesamiento se efectuaron en Google Earth Engine. Se caracterizó el estado de los suelos en 18 posiciones que tuvieron distintas severidades de quema. El efecto combinado de una bajante pronunciada en el nivel del río con una sequía climática muy intensa, condicionaron fuertemente la superficie cubierta por agua en el área del humedal. Los incendios tuvieron efectos negativos, principalmente en los suelos de los sitios con mayor severidad de quema en dos variables químicas y en una física-mecánica. De repetirse estas combinaciones ambientales el humedal incrementará riesgosamente su vulnerabilidad ecosistémica CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/199 10.35305/curiham.vi.199 Cuadernos del CURIHAM is a half-year publication of the Centro Universitario de Rosario of hydro-environmental research directed by Adelma Mancinelli. It is dedicated to spreading the results of basic and applied research as well as technological innovations on the realm of hidro-environmental issues. It may include field study results, interdisciplinary studies or studies on the state of art on the field: basic hydraulics, fluvial and hydrodinamics, superficial and underground hydrology, urban and stochastic hydrology, planning and management of hydric resources, environmental evaluation, pollution and quality of the water, politics and water legislation, regional hydro-environmental management, hydraulic construction, methods and techniques and everything related to hydro-environmental sciences.; SPECIAL ISSUE (2023): Water Level Drop in the Paraná river; e199 Cuadernos del CURIHAM; EDICIÓN ESPECIAL (2023): Bajante del río Paraná; e199 2683-8168 spa https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/199/214 https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/199/273 https://creativecommons.org/licenses/by-nc-sa/4.0

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