Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia
Rangelands assessment in arid and semiarid regions is a key tool both for livestock management planning and environmental diagnoses. Even though there is a consensus on the utility of such tools, rangeland assessment with high detail (grain) while covering large areas or landscapes (extension) is too costly. Then, the compatibility between the resolution and quality of information and the spatial extent required to make decisions in livestock systems is still an operational challenge that has not found an effective solution. Thus, the use of satellite images for rangeland assessments in different environments has been growing steadily in the last two decades. The developments associated with the capture of images using unmanned aerial vehicles (UAVs) would offer many advantages as a complement to information, since they increase the spatial resolution. The aim of this work was to classify rangeland environments using satellite and UAV images and compare their respective contributions for rangeland assessments in Patagonia. In particular, spatial resolution of an unsupervised classification of rangeland environments using SPOT 7 satellite images and images captured by an optical sensor mounted on an UAV were compared. Rangeland assessment can be potentiated by the use of different sources of information in a more complementary and accessible way for environmental monitoring, and for a pastoral management planning in highly heterogeneous environments from arid and semiarid regions of Patagonia, Argentina.https://doi.org/10.25260/EA.19.29.3.0.791
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Asociación Argentina de Ecología
2019
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Easdale, Marcos H. Umaña, Fernando Raffo, Fernando Fariña, Clara Bruzzone, Octavio |
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Easdale, Marcos H. Umaña, Fernando Raffo, Fernando Fariña, Clara Bruzzone, Octavio Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia |
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Easdale, Marcos H. Umaña, Fernando Raffo, Fernando Fariña, Clara Bruzzone, Octavio |
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Easdale, Marcos H. |
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Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia |
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Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia |
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Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia |
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Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia |
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Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia |
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complementing satellites and unmanned aerial vehicles for rangeland assessment in patagonia |
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Rangelands assessment in arid and semiarid regions is a key tool both for livestock management planning and environmental diagnoses. Even though there is a consensus on the utility of such tools, rangeland assessment with high detail (grain) while covering large areas or landscapes (extension) is too costly. Then, the compatibility between the resolution and quality of information and the spatial extent required to make decisions in livestock systems is still an operational challenge that has not found an effective solution. Thus, the use of satellite images for rangeland assessments in different environments has been growing steadily in the last two decades. The developments associated with the capture of images using unmanned aerial vehicles (UAVs) would offer many advantages as a complement to information, since they increase the spatial resolution. The aim of this work was to classify rangeland environments using satellite and UAV images and compare their respective contributions for rangeland assessments in Patagonia. In particular, spatial resolution of an unsupervised classification of rangeland environments using SPOT 7 satellite images and images captured by an optical sensor mounted on an UAV were compared. Rangeland assessment can be potentiated by the use of different sources of information in a more complementary and accessible way for environmental monitoring, and for a pastoral management planning in highly heterogeneous environments from arid and semiarid regions of Patagonia, Argentina.https://doi.org/10.25260/EA.19.29.3.0.791 |
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Asociación Argentina de Ecología |
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2019 |
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https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791 |
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rev-ecoaus-article-7912023-11-02T19:42:37Z Complementing satellites and unmanned aerial vehicles for rangeland assessment in Patagonia Evaluación de pastizales patagónicos con imágenes de satélites y de vehículos aéreos no tripulados Easdale, Marcos H. Umaña, Fernando Raffo, Fernando Fariña, Clara Bruzzone, Octavio Rangelands assessment in arid and semiarid regions is a key tool both for livestock management planning and environmental diagnoses. Even though there is a consensus on the utility of such tools, rangeland assessment with high detail (grain) while covering large areas or landscapes (extension) is too costly. Then, the compatibility between the resolution and quality of information and the spatial extent required to make decisions in livestock systems is still an operational challenge that has not found an effective solution. Thus, the use of satellite images for rangeland assessments in different environments has been growing steadily in the last two decades. The developments associated with the capture of images using unmanned aerial vehicles (UAVs) would offer many advantages as a complement to information, since they increase the spatial resolution. The aim of this work was to classify rangeland environments using satellite and UAV images and compare their respective contributions for rangeland assessments in Patagonia. In particular, spatial resolution of an unsupervised classification of rangeland environments using SPOT 7 satellite images and images captured by an optical sensor mounted on an UAV were compared. Rangeland assessment can be potentiated by the use of different sources of information in a more complementary and accessible way for environmental monitoring, and for a pastoral management planning in highly heterogeneous environments from arid and semiarid regions of Patagonia, Argentina.https://doi.org/10.25260/EA.19.29.3.0.791 La evaluación de pastizales en regiones áridas y semiáridas es una herramienta clave tanto para planificar el manejo ganadero como para realizar diagnósticos ambientales. Si bien hay un consenso sobre la utilidad de dicha herramienta en la Patagonia, es muy costoso evaluar pastizales que tengan mucho detalle (grano) y, a la vez, cubrir amplias zonas o paisajes (extensión). Por esta razón, compatibilizar la resolución y la calidad de la información con la extensión espacial que se requiere para tomar decisiones en sistemas ganaderos todavía es un desafío operativo sin solución efectiva. En este sentido, en las últimas dos décadas, el uso de imágenes satelitales para evaluar pastizales fue en aumento. Los desarrollos asociados a la captura de imágenes mediante el uso de vehículos aéreos no tripulados (VANT) ofrecerían ventajas como complemento de información, dado que incrementan sensiblemente la resolución espacial. El objetivo de este trabajo fue clasificar ambientes de pastizal mediante el uso de imágenes satelitales y de VANT, y comparar sus respectivas contribuciones para evaluar pastizales en la Patagonia. En particular, se comparó la resolución espacial de una clasificación no supervisada de ambientes utilizando imágenes satelitales SPOT 7 e imágenes capturadas por un sensor óptico montado en un VANT. El estudio de los pastizales se podría potenciar con el uso de distintas fuentes de información de manera complementaria y accesible para el seguimiento de ambientes y para la planificación del manejo del pastoreo en ambientes muy heterogéneos en regiones áridas y semiáridas de la Patagonia, Argentina.https://doi.org/10.25260/EA.19.29.3.0.791 Asociación Argentina de Ecología 2019-09-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articles Artículos application/pdf application/zip application/msword image/tiff image/tiff image/tiff image/tiff image/tiff image/tiff https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791 10.25260/EA.19.29.3.0.791 Ecología Austral; Vol. 29 No. 3 (2019): December 2019. Pages 285-445; 306-314 Ecología Austral; Vol. 29 Núm. 3 (2019): December 2019. Pages 285-445; 306-314 1667-782X 0327-5477 spa https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/400 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/401 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/527 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/528 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/529 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/530 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/531 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/532 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/791/533 Derechos de autor 2019 Marcos H. Easdale, Fernando Umaña, Fernando Raffo, Clara Fariña, Octavio Bruzzone https://creativecommons.org/licenses/by/3.0/ |