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| Millán,Santiago; Bolaños,Jiner Antonio; García-Valencia,Carolina; Gómez-López,Diana Isabel. |
| RESUMEN Las praderas de pastos marinos son un importante ecosistema debido a su alta productividad y valor ecológico dentro de los ambientes tropicales marinos, por albergar alta diversidad de especies. En Colombia, los pastos marinos se encuentran localizados rodeando las islas, en algunos bajos coralinos oceánicos y a lo largo de la costa continental caribeña, principalmente en el departamento de La Guajira, donde se encuentra más de 80% de las praderas de pastos marinos del país. En el mundo, la delimitación de este ecosistema ha sido realizada durante años, de manera exitosa, con la ayuda de teledetección con imágenes satelitales a diferentes escalas espaciales. No obstante, las condiciones ambientales particulares en La Guajira, de alta turbidez del... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Teledetección; Imágenes satelitales; Praderas de pastos marinos; La Guajira. |
| Ano: 2016 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612016000200289 |
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| Millán,Santiago; Rodríguez-Rodríguez,Jenny Alexandra; Sierra-Correa,Paula. |
| ABSTRACT This article describes the cartographic layer construction process of Colombian Caribbean coastal wetlands at a scale of 1:100,000 and the results obtained in terms of their quantification and typing. Two cartographic layers were constructed and subsequently joined, one of the permanent water bodies and another of temporary water bodies and associated coverages. The layers were generated by multitemporal analysis of 45 Landsat 8-OLI satellite images, based on the NDVI index, uncertainty models by superposition of cartographic attributes, and a flood frequency consultation model on ALOS PALSAR 1 images. As a result, 576,279 ha of coastal wetlands were delimited (1.9 % of total wetlands in Colombia), of which 20.4 % are within protected areas. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mangroves; Coastal floodplains forest; Water bodies; Geographic Information Systems (GIS); Protected areas. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000100121 |
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| Millán,Santiago; García-Valencia,Carolina. |
| ABSTRACT In order to contribute to the sea bottoms knowledge of the Seaflower Biosphere Reserve (RB Seaflower), a mapping update was made at 1:50,000 scale of the Seascape Ecological Units (SEU) for the Serrana, Roncador and Quitasueño atolls, based on the processing and interpretation of ALOS AVNIR - 2 satellite images acquired in 2012. For the attribute assignation was used as reference cartographic products, fieldwork data, and ecological descriptions of the benthic community. A total of 138,967 ha and 30 SEU, which corresponds to 32,908 ha for Serrana, 4,861 to Roncador and 101,198 to Quitasueño. The products generated represents a good approximation of the location, extension and distribution of the benthic seascape elements, constituting the base... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Marine atlas; Ecological units; Coral reefs; Cartography.. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000100197 |
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