Examinando por Materia "Composición"

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    Análisis multitemporal del paisaje en municipios con remanentes de bosque seco tropical en la franja noroeste de los departamentos de Córdoba y Sucre, Colombia 1985-2020
    (Universidad de Córdoba, 2023-03-03) Argel Fernandez, Arnol Jhon; Puerta Avilés, Oscar Antonio
    La estructura actual del paisaje asociado al bosque seco tropical en los departamentos de Córdoba y Sucre, es el resultado de un largo proceso de transformación en las coberturas vegetales originales, que fue consolidándose con el modelo económico predominante en la región Caribe, desde la conquista española. Dicho proceso se analizó desde el enfoque de paisaje, haciendo una revisión geohistorica de las principales características del mismo, así como los cambios sobre la composición y configuración del paisaje, mediante la interpretación de imágenes satelitales Lansat 5, 7 y 8 correspondientes a los años 1985, 2006 y 2020, teniendo en cuenta la Leyenda Nacional Corine Land cover, estimando la composición y configuración del paisaje mediante el cálculo de tasas de cambio y métricas de paisaje. Finalmente se propuso una estrategia para la conservación y recuperación de los remanentes de bosque enfocada en elementos clave del paisaje, como las áreas núcleo recuperación de la conectividad y articulación gubernamental multinivel. Se evidencio una recuperación del bosque entre el periodo 1985-2020, con un aumento en la fragmentación, concentrándose esta cobertura en el departamento de Sucre, las presiones sobre la cobertura de bosque son persistentes; las zonas potenciales para conservación coinciden con áreas protegidas de carácter, regional y nacional y se propone un modelo de red ecológica para su integración y objetivos de conservación.
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    PublicaciónAcceso abierto
    Distribución, mecanismos de escalada y usos de seis especies de lianas (ASTERACEAE) en Colombia
    (2021-11-29) Ossa Aguilar, Liseth Paola; Carrillo Fajardo, Merly Yenedith
    In Colombia, the Asteraceae family occupies the fifth place in liana diversity (around 80 species), many of them are widely used by peasant and indigenous communities; In addition, they provide food to some insects (Hymenoptera, Diptera, among others), and 2 participate in the retention and stabilization of the soil. Despite their importance, lianas (Asteraceae) are poorly documented and studies on functional traits associated with the altitudinal gradient are scarce. In this work, a bibliographic review and virtual collections of national and international Herbariums are presented, through which the altitudinal distribution patterns, climbing mechanisms and uses of six lianas along the Colombian altitudinal gradient were determined (Ageratina gracilis (Kunth) RMKing & H.Rob., Baccharis inamoena Gardner., Lasiocephalus doryphyllus (Cuatrec.) Cuatrec., Lepidaploa canescens (Kunth) Cass., Mikania hookeriana DC. and Oligactis volubilis (Kunth) Cass.). An altitudinal distribution pattern of the richness of the species was observed in the form of a hump, the climbing mechanisms were simple, petioles sensitive and fickle, the latter being the one that predominated. The number of publications where the uses of lianas are mentioned was higher for B. inamoena. It is confirmed that altitude is a determining factor in the distribution of the studied lianas; as well as in the distribution of active climbing mechanisms. Most of the publications show that the species A. gracilis, B. inamoena and L. canescens are used by the scientific community to carry out research
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    PublicaciónAcceso abierto
    Estudio monográfico sobre obtención de aceites y material particulado para uso cosmético a partir de residuos como semillas, generadas en la agroindustria cordobesa
    (2020-12-01) Montes Aguilar, Vanessa; Montaño Castañeda, Mary Cecilia
    In the world, many agro-industrial wastes such as seeds is generated, and these are used in different industrial sectors. In Colombia, these wastes are used in some cities that work in the agribusiness sector to promote their economy, converting this waste to a composting process or animal feed. Córdoba is one of the departments that works mainly in the agricultural sector to boost its economy, its productive experience in fruit crops is based on the biodiversity of crops such as soursop, guava, mango, papaya, passion fruit, pineapple, citrus, medlar, sapote coastal, among others. The main benefit that is given to this production is through exportation and processing to obtain pulps, which are then used to make juices, jams and other products; the waste generated, such as seeds, lack a final disposal that gives them added value in the cosmetic industry, due to the lack of innovation regarding the benefit that can be obtained from this type of waste. Research work has been carried out in the department regarding the benefit that can be obtained from the plant diversity that it has; but there are very few investigative reports on the use of residues as seeds of the Cordoba fruit agroindustry, which leads us to give a significant theoretical contribution to the community about how to give added value to these wastes, each of its both physical and chemical properties. That is why the interest in the use of agro-industrial waste in Córdoba, raises the compilation of information that leads to understand and value the composition and properties of waste such as seeds of typical fruits of the department, their applications in antioxidant, bactericidal and infectious treatments and potential use as exfoliating particles in the cosmetic industry.