Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation?
To understand the consequences of unsustainable management practices and global change, analyzing the patterns of ecosystem functioning and land degradation is as important as quantifying the spatio-temporal patterns of land cover loss. This is particularly important for wetlands where loss and degr...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Elsevier
2022
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/13247 https://www.sciencedirect.com/science/article/pii/S2352938521001622 https://doi.org/10.1016/j.rsase.2021.100626 |
| _version_ | 1855485134410612736 |
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| author | Aquino, Diego Sebastián Sica, Yanina Vanesa Quintana, Rubén Darío Gavier Pizarro, Gregorio Ignacio |
| author_browse | Aquino, Diego Sebastián Gavier Pizarro, Gregorio Ignacio Quintana, Rubén Darío Sica, Yanina Vanesa |
| author_facet | Aquino, Diego Sebastián Sica, Yanina Vanesa Quintana, Rubén Darío Gavier Pizarro, Gregorio Ignacio |
| author_sort | Aquino, Diego Sebastián |
| collection | INTA Digital |
| description | To understand the consequences of unsustainable management practices and global change, analyzing the patterns of ecosystem functioning and land degradation is as important as quantifying the spatio-temporal patterns of land cover loss. This is particularly important for wetlands where loss and degradation are globally intensifying. In the Lower Delta of the Paraná River, Argentina, land use change has occurred in the context of cattle raising intensification, which involves water management infrastructure. However, when those changes specifically occurred and whether they permanently influenced the functional component of wetland ecosystems remain unanswered. We used a long-term (2001–2015) fused satellite-derived Normalized Difference Vegetation Index dataset to identify major shifts in vegetation activity trends using the Breaks for Additive Seasons and Trend algorithm. We assembled a set of hydro-climatic, environmental, and anthropogenic variables to study their association with the spatio-temporal patterns of vegetation activity trends. Our results show that browning-to-greening trends dominated throughout the study area. Concomitantly, the magnitude of breakpoints was mainly negative, which points towards rapid land degradation and biomass submersion or removal events. Breakpoints primarily occurred between 2007 and 2009 and were partially coincident with an extraordinary flood event and intentional fire outbreaks. Paranacito river flooding, precipitation, the synchronicity with temperature patterns, water management infrastructure and the occurrence of local land cover conversions were determining factors in the differentiation and characteristics of vegetation activity trends, shifts and breakpoints. Our results provide evidence that even though regional hydro-climatic patterns remain as main drivers of wetland vegetation dynamics, human influence and its negative effects increase in the context of adverse hydro-climatic scenarios. In this matter, we observed that the decouplement from the flood pulse promoted a post-disturbance recolonization of herbaceous vegetation. Consistently, the widespread browning-to-greening trend reversal does not necessarily relate to wetland vegetation recovery but instead, might have masked its extensive conversion to grasslands. |
| format | Artículo |
| id | INTA13247 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA132472022-11-09T10:55:44Z Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation? Aquino, Diego Sebastián Sica, Yanina Vanesa Quintana, Rubén Darío Gavier Pizarro, Gregorio Ignacio Wetland Soils Soil Management Time Series Analysis Suelo de Tierras Húmedas Manejo del Suelo Análisis de Series Cronológicas Vegetation Activity Trend Shifts Wetland Ecosystems Actividad de la Vegetación Cambios de Tendencia Ecosistema de Humedales To understand the consequences of unsustainable management practices and global change, analyzing the patterns of ecosystem functioning and land degradation is as important as quantifying the spatio-temporal patterns of land cover loss. This is particularly important for wetlands where loss and degradation are globally intensifying. In the Lower Delta of the Paraná River, Argentina, land use change has occurred in the context of cattle raising intensification, which involves water management infrastructure. However, when those changes specifically occurred and whether they permanently influenced the functional component of wetland ecosystems remain unanswered. We used a long-term (2001–2015) fused satellite-derived Normalized Difference Vegetation Index dataset to identify major shifts in vegetation activity trends using the Breaks for Additive Seasons and Trend algorithm. We assembled a set of hydro-climatic, environmental, and anthropogenic variables to study their association with the spatio-temporal patterns of vegetation activity trends. Our results show that browning-to-greening trends dominated throughout the study area. Concomitantly, the magnitude of breakpoints was mainly negative, which points towards rapid land degradation and biomass submersion or removal events. Breakpoints primarily occurred between 2007 and 2009 and were partially coincident with an extraordinary flood event and intentional fire outbreaks. Paranacito river flooding, precipitation, the synchronicity with temperature patterns, water management infrastructure and the occurrence of local land cover conversions were determining factors in the differentiation and characteristics of vegetation activity trends, shifts and breakpoints. Our results provide evidence that even though regional hydro-climatic patterns remain as main drivers of wetland vegetation dynamics, human influence and its negative effects increase in the context of adverse hydro-climatic scenarios. In this matter, we observed that the decouplement from the flood pulse promoted a post-disturbance recolonization of herbaceous vegetation. Consistently, the widespread browning-to-greening trend reversal does not necessarily relate to wetland vegetation recovery but instead, might have masked its extensive conversion to grasslands. Fil: Aquino, Diego Sebastián. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación e Ingeniería Ambiental; Argentina Fil: Sica, Yanina Vanesa. Yale University. Department of Ecology and Evolutionary Biology,; Estados Unidos Fil: Quintana, Rubén Darío. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación e Ingeniería Ambiental; Argentina Fil: Gavier Pizarro, Gregorio Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina 2022-10-28T12:04:48Z 2022-10-28T12:04:48Z 2021-09-14 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13247 https://www.sciencedirect.com/science/article/pii/S2352938521001622 2352-9385 https://doi.org/10.1016/j.rsase.2021.100626 eng info:eu-repograntAgreement/INTA/PNNAT-1128052/AR./Desarrollo de herramientas y validación de metodologías para el estudio, gestión y manejo de los sistemas productivos, contribuyendo a su resiliencia socio agroambiental. info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Remote Sensing Applications: Society and Environment, 24 : 100626 (November 2021) |
| spellingShingle | Wetland Soils Soil Management Time Series Analysis Suelo de Tierras Húmedas Manejo del Suelo Análisis de Series Cronológicas Vegetation Activity Trend Shifts Wetland Ecosystems Actividad de la Vegetación Cambios de Tendencia Ecosistema de Humedales Aquino, Diego Sebastián Sica, Yanina Vanesa Quintana, Rubén Darío Gavier Pizarro, Gregorio Ignacio Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation? |
| title | Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation? |
| title_full | Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation? |
| title_fullStr | Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation? |
| title_full_unstemmed | Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation? |
| title_short | Non-monotonic vegetation activity trends in the Lower Delta of the Paraná River: masking evidence of wetland degradation? |
| title_sort | non monotonic vegetation activity trends in the lower delta of the parana river masking evidence of wetland degradation |
| topic | Wetland Soils Soil Management Time Series Analysis Suelo de Tierras Húmedas Manejo del Suelo Análisis de Series Cronológicas Vegetation Activity Trend Shifts Wetland Ecosystems Actividad de la Vegetación Cambios de Tendencia Ecosistema de Humedales |
| url | http://hdl.handle.net/20.500.12123/13247 https://www.sciencedirect.com/science/article/pii/S2352938521001622 https://doi.org/10.1016/j.rsase.2021.100626 |
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