Monitoring drylands: The MARAS system
- Autores
- Oliva, Gabriel Esteban; Bran, Donaldo Eduardo; Gaitan, Juan Jose; Ferrante, Daniela; Massara Paletto, Virginia; Garcia Martinez, Guillermo Carlos; Adema, Edgardo Osvaldo; Enrique, Mario Luis; Dominguez, Erwin; Paredes, Paula Natalia
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión aceptada
- Descripción
- MARAS (Monitoring of Arid and Semiarid Regions) consists of 379 ground monitors in Patagonia, a 624.500 km2 semiarid area of southern Argentina and Chile. The objective of this paper was to describe the system and analyze four variables of the initial data base. Floristic composition, diversity and cover were analyzed with intercept lines (500 points). Patches (resource-sinks areas) and Interpatches (areas that loose resources) were described using Gap intercept lines (50 m). Eleven Landscape Functional Analysis indicators were recorded in 10 interpatches: Soil stability, Infiltration and Nutrient cycling. Vegetation Cover was 43 ± 2%, Richness 15 ± 7 species/monitor, Interpatch Size 154 ± 134 cm and LFA Stability Index 46 ± 1%. Cover, Richness and Stability maps had bimodal distribution and maximum in S and NE areas, following rainfall gradients. Variability analysis shows that cover estimations are within 5% error at site and regional scales. Graphical analysis of single monitors shows observational biases in interpatch size and LFA Stability index. Richness estimations correlate significantly with α diversity (R2 = 0.80). Analysis of 5-year change in 115 monitors shows significant reductions in cover and interpatch length, especially N of the region. These base line evaluations enable analysis of future changes that were not possible with multiple techniques and isolated data bases.
EEA Santa Cruz
Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina
Fil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Massara Paletto, Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Garcia Martinez, Guillermo Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Esquel; Argentina
Fil: Adema, Edgardo Osvaldo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina
Fil: Enrique, Mario Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Valle Inferior; Argentina
Fil: Dominguez, Erwin. Instituto de Investigaciones Agropecuarias (INIA); Chile
Fil: Paredes, Paula Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. - Fuente
- Journal of Arid Environments Available online 9 November 2018
- Materia
-
Biodiversidad
Vegetación
Zona Arida
Tierras de Pastos
Suelo
Biodiversity
Vegetation
Arid Zones
Rangelands
Soil
Región Patagónica
Argentina
Chile
Regiones de Secano - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
.jpg)
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/3939
Ver los metadatos del registro completo
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Monitoring drylands: The MARAS systemOliva, Gabriel EstebanBran, Donaldo EduardoGaitan, Juan JoseFerrante, DanielaMassara Paletto, VirginiaGarcia Martinez, Guillermo CarlosAdema, Edgardo OsvaldoEnrique, Mario LuisDominguez, ErwinParedes, Paula NataliaBiodiversidadVegetaciónZona AridaTierras de PastosSueloBiodiversityVegetationArid ZonesRangelandsSoilRegión PatagónicaArgentinaChileRegiones de SecanoMARAS (Monitoring of Arid and Semiarid Regions) consists of 379 ground monitors in Patagonia, a 624.500 km2 semiarid area of southern Argentina and Chile. The objective of this paper was to describe the system and analyze four variables of the initial data base. Floristic composition, diversity and cover were analyzed with intercept lines (500 points). Patches (resource-sinks areas) and Interpatches (areas that loose resources) were described using Gap intercept lines (50 m). Eleven Landscape Functional Analysis indicators were recorded in 10 interpatches: Soil stability, Infiltration and Nutrient cycling. Vegetation Cover was 43 ± 2%, Richness 15 ± 7 species/monitor, Interpatch Size 154 ± 134 cm and LFA Stability Index 46 ± 1%. Cover, Richness and Stability maps had bimodal distribution and maximum in S and NE areas, following rainfall gradients. Variability analysis shows that cover estimations are within 5% error at site and regional scales. Graphical analysis of single monitors shows observational biases in interpatch size and LFA Stability index. Richness estimations correlate significantly with α diversity (R2 = 0.80). Analysis of 5-year change in 115 monitors shows significant reductions in cover and interpatch length, especially N of the region. These base line evaluations enable analysis of future changes that were not possible with multiple techniques and isolated data bases.EEA Santa CruzFil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; ArgentinaFil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; ArgentinaFil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Massara Paletto, Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; ArgentinaFil: Garcia Martinez, Guillermo Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Esquel; ArgentinaFil: Adema, Edgardo Osvaldo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; ArgentinaFil: Enrique, Mario Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Valle Inferior; ArgentinaFil: Dominguez, Erwin. Instituto de Investigaciones Agropecuarias (INIA); ChileFil: Paredes, Paula Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina.Elsevierinfo:eu-repo/date/embargoEnd/2020-11-232018-11-21T14:38:00Z2018-11-21T14:38:00Z2018-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://www.sciencedirect.com/science/article/pii/S0140196318319505?dgcid=rss_sd_allhttp://hdl.handle.net/20.500.12123/39390140-19631095-922Xhttps://doi.org/10.1016/j.jaridenv.2018.10.004Journal of Arid Environments Available online 9 November 2018reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:30Zoai:localhost:20.500.12123/3939instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:30.845INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
| dc.title.none.fl_str_mv |
Monitoring drylands: The MARAS system |
| title |
Monitoring drylands: The MARAS system |
| spellingShingle |
Monitoring drylands: The MARAS system Oliva, Gabriel Esteban Biodiversidad Vegetación Zona Arida Tierras de Pastos Suelo Biodiversity Vegetation Arid Zones Rangelands Soil Región Patagónica Argentina Chile Regiones de Secano |
| title_short |
Monitoring drylands: The MARAS system |
| title_full |
Monitoring drylands: The MARAS system |
| title_fullStr |
Monitoring drylands: The MARAS system |
| title_full_unstemmed |
Monitoring drylands: The MARAS system |
| title_sort |
Monitoring drylands: The MARAS system |
| dc.creator.none.fl_str_mv |
Oliva, Gabriel Esteban Bran, Donaldo Eduardo Gaitan, Juan Jose Ferrante, Daniela Massara Paletto, Virginia Garcia Martinez, Guillermo Carlos Adema, Edgardo Osvaldo Enrique, Mario Luis Dominguez, Erwin Paredes, Paula Natalia |
| author |
Oliva, Gabriel Esteban |
| author_facet |
Oliva, Gabriel Esteban Bran, Donaldo Eduardo Gaitan, Juan Jose Ferrante, Daniela Massara Paletto, Virginia Garcia Martinez, Guillermo Carlos Adema, Edgardo Osvaldo Enrique, Mario Luis Dominguez, Erwin Paredes, Paula Natalia |
| author_role |
author |
| author2 |
Bran, Donaldo Eduardo Gaitan, Juan Jose Ferrante, Daniela Massara Paletto, Virginia Garcia Martinez, Guillermo Carlos Adema, Edgardo Osvaldo Enrique, Mario Luis Dominguez, Erwin Paredes, Paula Natalia |
| author2_role |
author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Biodiversidad Vegetación Zona Arida Tierras de Pastos Suelo Biodiversity Vegetation Arid Zones Rangelands Soil Región Patagónica Argentina Chile Regiones de Secano |
| topic |
Biodiversidad Vegetación Zona Arida Tierras de Pastos Suelo Biodiversity Vegetation Arid Zones Rangelands Soil Región Patagónica Argentina Chile Regiones de Secano |
| dc.description.none.fl_txt_mv |
MARAS (Monitoring of Arid and Semiarid Regions) consists of 379 ground monitors in Patagonia, a 624.500 km2 semiarid area of southern Argentina and Chile. The objective of this paper was to describe the system and analyze four variables of the initial data base. Floristic composition, diversity and cover were analyzed with intercept lines (500 points). Patches (resource-sinks areas) and Interpatches (areas that loose resources) were described using Gap intercept lines (50 m). Eleven Landscape Functional Analysis indicators were recorded in 10 interpatches: Soil stability, Infiltration and Nutrient cycling. Vegetation Cover was 43 ± 2%, Richness 15 ± 7 species/monitor, Interpatch Size 154 ± 134 cm and LFA Stability Index 46 ± 1%. Cover, Richness and Stability maps had bimodal distribution and maximum in S and NE areas, following rainfall gradients. Variability analysis shows that cover estimations are within 5% error at site and regional scales. Graphical analysis of single monitors shows observational biases in interpatch size and LFA Stability index. Richness estimations correlate significantly with α diversity (R2 = 0.80). Analysis of 5-year change in 115 monitors shows significant reductions in cover and interpatch length, especially N of the region. These base line evaluations enable analysis of future changes that were not possible with multiple techniques and isolated data bases. EEA Santa Cruz Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina Fil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina Fil: Massara Paletto, Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina Fil: Garcia Martinez, Guillermo Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Esquel; Argentina Fil: Adema, Edgardo Osvaldo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina Fil: Enrique, Mario Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Valle Inferior; Argentina Fil: Dominguez, Erwin. Instituto de Investigaciones Agropecuarias (INIA); Chile Fil: Paredes, Paula Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. |
| description |
MARAS (Monitoring of Arid and Semiarid Regions) consists of 379 ground monitors in Patagonia, a 624.500 km2 semiarid area of southern Argentina and Chile. The objective of this paper was to describe the system and analyze four variables of the initial data base. Floristic composition, diversity and cover were analyzed with intercept lines (500 points). Patches (resource-sinks areas) and Interpatches (areas that loose resources) were described using Gap intercept lines (50 m). Eleven Landscape Functional Analysis indicators were recorded in 10 interpatches: Soil stability, Infiltration and Nutrient cycling. Vegetation Cover was 43 ± 2%, Richness 15 ± 7 species/monitor, Interpatch Size 154 ± 134 cm and LFA Stability Index 46 ± 1%. Cover, Richness and Stability maps had bimodal distribution and maximum in S and NE areas, following rainfall gradients. Variability analysis shows that cover estimations are within 5% error at site and regional scales. Graphical analysis of single monitors shows observational biases in interpatch size and LFA Stability index. Richness estimations correlate significantly with α diversity (R2 = 0.80). Analysis of 5-year change in 115 monitors shows significant reductions in cover and interpatch length, especially N of the region. These base line evaluations enable analysis of future changes that were not possible with multiple techniques and isolated data bases. |
| publishDate |
2018 |
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2018-11-21T14:38:00Z 2018-11-21T14:38:00Z 2018-11-09 info:eu-repo/date/embargoEnd/2020-11-23 |
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info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
https://www.sciencedirect.com/science/article/pii/S0140196318319505?dgcid=rss_sd_all http://hdl.handle.net/20.500.12123/3939 0140-1963 1095-922X https://doi.org/10.1016/j.jaridenv.2018.10.004 |
| url |
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0140-1963 1095-922X |
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eng |
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Elsevier |
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Elsevier |
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Journal of Arid Environments Available online 9 November 2018 reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
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