Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies
The United Nations defines desertification as the loss of productivity in arid and semiarid environments. The extended steppes of Patagonia harbor small meadows whose compounded area is comparatively small, but their aboveground net primary production (ANPP) is up to ten times higher than their surr...
| Main Authors: | , , , |
|---|---|
| Format: | Artículo |
| Language: | Inglés |
| Published: |
MDPI
2023
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/14851 https://www.mdpi.com/2072-4292/15/10/2531 https://doi.org/10.3390/rs15102531 |
| _version_ | 1855485442704539648 |
|---|---|
| author | Curcio, Matías Hernán Irisarri, Jorge Gonzalo Nicolás Garcia Martinez, Guillermo Carlos Oesterheld, Martin |
| author_browse | Curcio, Matías Hernán Garcia Martinez, Guillermo Carlos Irisarri, Jorge Gonzalo Nicolás Oesterheld, Martin |
| author_facet | Curcio, Matías Hernán Irisarri, Jorge Gonzalo Nicolás Garcia Martinez, Guillermo Carlos Oesterheld, Martin |
| author_sort | Curcio, Matías Hernán |
| collection | INTA Digital |
| description | The United Nations defines desertification as the loss of productivity in arid and semiarid environments. The extended steppes of Patagonia harbor small meadows whose compounded area is comparatively small, but their aboveground net primary production (ANPP) is up to ten times higher than their surroundings. These meadows then represent a key ecosystem for cattle grazing systems,
but there are no descriptions of the trends in their ANPP and, consequently, their carrying capacity, and, as a result, their degradation syndromes. Our objectives were as follows: (1) analyze the trends of mean and spatial heterogeneity of annual ANPP in meadows and neighboring steppes and relate them with precipitation and temperature, (2) evaluate the impact on the livestock carrying capacity of
meadows in the region, and (3) evaluate the degradation trends of these meadows, based on a novel description proposed to characterize the trend syndromes of these type of ecosystems. We identified meadow areas across a subcontinental scale in Patagonia, covering a mean annual precipitation range from 129 to 936 mm. We estimated ANPP on a monthly basis from 2000 to 2019 via regional calibrated remote sensing information. In the last two decades, ANPP decreased in 74% of the studied meadow
areas, while remaining relatively stable in the nearby steppes. This decrease was relatively higher in the arid end of the analyzed precipitation gradient. Hence, the global carrying capacity for all the studied meadow areas decreased by 8%. Finally, we identified four trend syndromes based on the combination of the ANPP trend and its spatial heterogeneity, calculated as the spatial standard
deviation. The predominant trend syndrome, in 55% of the area, was associated with a negative trend of both ANPP and spatial heterogeneity. These results could help prioritize areas where specific management decisions, given the different trend syndromes, could help revert ANPP negative trends. |
| format | Artículo |
| id | INTA14851 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA148512023-08-02T10:59:24Z Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies Curcio, Matías Hernán Irisarri, Jorge Gonzalo Nicolás Garcia Martinez, Guillermo Carlos Oesterheld, Martin Tierras Húmedas Estepas Capacidad de Carga Cambio Climático Precipitación Atmosférica Temperatura Wetlands Steppes Carrying Capacity Climate Change Precipitation Temperature Región Patagónica The United Nations defines desertification as the loss of productivity in arid and semiarid environments. The extended steppes of Patagonia harbor small meadows whose compounded area is comparatively small, but their aboveground net primary production (ANPP) is up to ten times higher than their surroundings. These meadows then represent a key ecosystem for cattle grazing systems, but there are no descriptions of the trends in their ANPP and, consequently, their carrying capacity, and, as a result, their degradation syndromes. Our objectives were as follows: (1) analyze the trends of mean and spatial heterogeneity of annual ANPP in meadows and neighboring steppes and relate them with precipitation and temperature, (2) evaluate the impact on the livestock carrying capacity of meadows in the region, and (3) evaluate the degradation trends of these meadows, based on a novel description proposed to characterize the trend syndromes of these type of ecosystems. We identified meadow areas across a subcontinental scale in Patagonia, covering a mean annual precipitation range from 129 to 936 mm. We estimated ANPP on a monthly basis from 2000 to 2019 via regional calibrated remote sensing information. In the last two decades, ANPP decreased in 74% of the studied meadow areas, while remaining relatively stable in the nearby steppes. This decrease was relatively higher in the arid end of the analyzed precipitation gradient. Hence, the global carrying capacity for all the studied meadow areas decreased by 8%. Finally, we identified four trend syndromes based on the combination of the ANPP trend and its spatial heterogeneity, calculated as the spatial standard deviation. The predominant trend syndrome, in 55% of the area, was associated with a negative trend of both ANPP and spatial heterogeneity. These results could help prioritize areas where specific management decisions, given the different trend syndromes, could help revert ANPP negative trends. EEA Esquel Fil: Curcio, Matías Hernán. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel (EEAf Esquel); Argentina Fil: Curcio, Matías Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Irisarri, Jorge Gonzalo Nicolás. Rothamsted Research. Net Zero & Resilient Farming Directorate; Reino Unido Fil: Irisarri, Jorge Gonzalo Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina Fil: García Martínez, Guillermo Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel (EEAf Esquel); Argentina Fil: Oesterheld, Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA); Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina 2023-08-02T10:51:04Z 2023-08-02T10:51:04Z 2023-05-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14851 https://www.mdpi.com/2072-4292/15/10/2531 Curcio, M.; Irisarri, G.; García Martínez, G.; Oesterheld, M. Trends of Aboveground Net Primary Productivity of Patagonian Meadows, the Omitted Ecosystem in Desertification Studies. Remote Sens. 2023, 15, 2531. https://doi.org/10.3390/rs15102531 2072-4292 https://doi.org/10.3390/rs15102531 eng info:eu-repograntAgreement/INTA/2019-PD-E2-I506-002/2019-PD-E2-I506-002, Humedales de la República Argentina: distribución, usos y recomendaciones coparticipativas para una producción sustentable info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf MDPI Remote Sensing 15 (10) : 2531. (2023) |
| spellingShingle | Tierras Húmedas Estepas Capacidad de Carga Cambio Climático Precipitación Atmosférica Temperatura Wetlands Steppes Carrying Capacity Climate Change Precipitation Temperature Región Patagónica Curcio, Matías Hernán Irisarri, Jorge Gonzalo Nicolás Garcia Martinez, Guillermo Carlos Oesterheld, Martin Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies |
| title | Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies |
| title_full | Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies |
| title_fullStr | Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies |
| title_full_unstemmed | Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies |
| title_short | Trends of aboveground net primary productivity of Patagonian meadows, the omitted ecosystem in desertification studies |
| title_sort | trends of aboveground net primary productivity of patagonian meadows the omitted ecosystem in desertification studies |
| topic | Tierras Húmedas Estepas Capacidad de Carga Cambio Climático Precipitación Atmosférica Temperatura Wetlands Steppes Carrying Capacity Climate Change Precipitation Temperature Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/14851 https://www.mdpi.com/2072-4292/15/10/2531 https://doi.org/10.3390/rs15102531 |
| work_keys_str_mv | AT curciomatiashernan trendsofabovegroundnetprimaryproductivityofpatagonianmeadowstheomittedecosystemindesertificationstudies AT irisarrijorgegonzalonicolas trendsofabovegroundnetprimaryproductivityofpatagonianmeadowstheomittedecosystemindesertificationstudies AT garciamartinezguillermocarlos trendsofabovegroundnetprimaryproductivityofpatagonianmeadowstheomittedecosystemindesertificationstudies AT oesterheldmartin trendsofabovegroundnetprimaryproductivityofpatagonianmeadowstheomittedecosystemindesertificationstudies |