8 research outputs found

    Agroclimatic zoning for oil palm water management in the Department of Magdalena

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    Con el fin de contribuir a un manejo eficiente del agua en el cultivo de palma de aceite en el departamento del Magdalena (Colombia) bajo las condiciones actuales y escenarios críticos futuros, en el presente trabajo se planteó realizar la zonificación agroclimática y de la demanda hídrica del cultivo en la región. Para el desarrollo de esta zonificación se procedió con la obtención, procesamiento y análisis espacial de datos climáticos, de las características del suelo, topografía y de los requerimientos hídricos del cultivo estimados para diferentes etapas fenológicas. Como resultado se tiene la identificación de 12 zonas agroclimáticas, de las cuales 7, corresponden a las áreas donde está establecido el cultivo de palma. Como principales características de estas zonas es que presentan déficits hídricos considerables, entre -600 y -1500 mm/año, siendo las zonas 7 y 6 las más críticas y que pueden considerarse restrictivas para el adecuado desarrollo del cultivo. Llevar a un mayor detalle la caracterización de una zona, es fundamental para acercarse a un manejo óptimo y ajustado a la realidad de las necesidades riegos y drenajes de los cultivos. En este caso, se sugiere incrementar la implementación de riegos eficientes como goteo y aspersión, ya que las fuentes hídricas no pueden suplir con las necesidades hídricas del cultivo, principalmente en la zona 6, 7 y 11 ya que están afectando a la Ciénaga Grande de Santa Marta.Máster Universitario en Hidrología y Gestión de Recursos Hídricos (M174

    Metacognición de docentes en situación-problema de carácter interpersonal entre estudiantes en el contexto escolar

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    Este proyecto de investigación apuntó a caracterizar los procesos metacognitivos de los docentes de ciclo cuatro de educación básica, en tres instituciones oficiales del distrito capital al abordar una situación -problema de carácter interpersonal entre estudiantes en el contexto escolar (SPIE). La investigación corresponde a un estudio descriptivo exploratorio, desde un enfoque cualitativo, desarrollado a partir de tres instrumentos: cuestionario metacoqnitivo que permitió identificar la autopercepción metacognitiva de los docentes, entrevista semi-estructurada la cual posibilitó, recolectar información de sus procesos cognitivos y metacognitivos a partir del relato de una experiencia significativa en una SPIE. Por último, se evidenciaron las estrategias metacognitivas del docente, a través del desarrollo una tarea cognitiva. La tipificación de los docentes desde procesos de autopercepción y el planteamiento de la ruta metacognitiva, son dos de los resultados fundamentales, en estos se evidencia la presencia y uso de estrategias metacognitivas en los docentes participantes, así como la necesidad de generar formación en procesos de control y evaluación en los maestros, al ser las estrategias de menor referencia en entrevista y tarea cognitiva. Finalmente, la investigación aporta dos herramientas metodológicas de factible aplicación (cuestionario y manual de aplicación) los cuales una vez validados pueden ser ¡implementados en investigaciones afines.This research project aims to characterize the metacognitive process of a group of teachers of cycle four basic education, in three official schools in Bogotá D.C., they addressed a problem- situation of interpersonal type between students in the school context (SPIE). This research belongs to a descriptive an exploratory study, it used a qualitative approach and three instruments: metacognitive questionnaire. that allowed the teacher's metacognitive self-perception, semi structured interview, it helps to collect data about cognitive and metacognitive processes from the meaning experience report in a SPIE, by last, a cognitive task developed, showed the metacognitive strategies of teachers. The teacher s typification from self - perception processes and design a metacognitive route, they were two principal results, they demonstrated the presence and use of metacognitive strategies in the participant teachers, as well as, it showed the need to generate control processes training and evaluation in the teachers, because they were the lowest reference strategies in the interview and cognitive task. Finally, the research provides two methodological tools of feasible application (questionnaire - and handbook application) which once validated they could be implemented in related researches.Magíster en EducaciónMaestrí

    La Familia: la institución donde tantas veces nace la paz o la violencia

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    La familia educa y prepara al niño para enfrentar posteriormente las otras instituciones sociales Que conforman el sistema social. La misión de la familia es presentar un modelo de conducta al niño de manera Que facilite el desarrollo de la personalidad firme, equilibrada, afectuosa, con capacidad de interacción social

    La Familia: la institución donde tantas veces nace la paz o la violencia

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    La familia educa y prepara al niño para enfrentar posteriormente las otras instituciones sociales Que conforman el sistema social. La misión de la familia es presentar un modelo de conducta al niño de manera Que facilite el desarrollo de la personalidad firme, equilibrada, afectuosa, con capacidad de interacción social

    Integral analysis of environmental and economic performance of combined agricultural intensification & bioenergy production in the Orinoquia region

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    Agricultural intensification is a key strategy to help meet increasing demand for food and bioenergy. It has the potential to reduce direct and indirect land use change (LUC) and associated environmental impacts while contributing to a favorable economic performance of the agriculture sector. We conduct an integral analysis of environmental and economic impacts of LUC from projected agricultural intensification and bioenergy production in the Orinoquia region in 2030. We compare three agricultural intensification scenarios (low, medium, high) and a reference scenario, which assumes a business-as-usual development of agricultural production. The results show that with current inefficient management or with only very little intensification between 26% and 93% of the existing natural vegetation areas will be converted to agricultural land to meet increasing food demand. This results in the loss of biodiversity by 53% and increased water consumption by 111%. In the medium and high scenarios, the intensification allows meeting increased food demand within current agricultural lands and even generating surplus land which can be used to produce bioenergy crops. This results in the reduction of biodiversity loss by 8-13% with medium and high levels of intensification compared to the situation in 2018. Also, a positive economic performance is observed, stemming primarily from intensification of cattle production and additional energy crop production. Despite increasing irrigation efficiency in more intensive production systems, the water demand for perennial crops and cattle production over the dry season increases significantly, thus sustainable management practices that target efficient water use are needed. Agricultural productivity improvements, particularly for cattle production, are crucial for reducing the pressure on natural areas from increasing demand for both food products and bioenergy. This implies targeted investments in the agricultural sector and integrated planning of land use. Our results showed that production intensification in the Orinoquia region is a mechanism that could reduce the pressure on natural land and its associated environmental and economic impacts

    Integral analysis of environmental and economic performance of combined agricultural intensification & bioenergy production in the Orinoquia region

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    Agricultural intensification is a key strategy to help meet increasing demand for food and bioenergy. It has the potential to reduce direct and indirect land use change (LUC) and associated environmental impacts while contributing to a favorable economic performance of the agriculture sector. We conduct an integral analysis of environmental and economic impacts of LUC from projected agricultural intensification and bioenergy production in the Orinoquia region in 2030. We compare three agricultural intensification scenarios (low, medium, high) and a reference scenario, which assumes a business-as-usual development of agricultural production. The results show that with current inefficient management or with only very little intensification between 26% and 93% of the existing natural vegetation areas will be converted to agricultural land to meet increasing food demand. This results in the loss of biodiversity by 53% and increased water consumption by 111%. In the medium and high scenarios, the intensification allows meeting increased food demand within current agricultural lands and even generating surplus land which can be used to produce bioenergy crops. This results in the reduction of biodiversity loss by 8-13% with medium and high levels of intensification compared to the situation in 2018. Also, a positive economic performance is observed, stemming primarily from intensification of cattle production and additional energy crop production. Despite increasing irrigation efficiency in more intensive production systems, the water demand for perennial crops and cattle production over the dry season increases significantly, thus sustainable management practices that target efficient water use are needed. Agricultural productivity improvements, particularly for cattle production, are crucial for reducing the pressure on natural areas from increasing demand for both food products and bioenergy. This implies targeted investments in the agricultural sector and integrated planning of land use. Our results showed that production intensification in the Orinoquia region is a mechanism that could reduce the pressure on natural land and its associated environmental and economic impacts

    Integral analysis of environmental and economic performance of combined agricultural intensification & bioenergy production in the Orinoquia region

    Get PDF
    Agricultural intensification is a key strategy to help meet increasing demand for food and bioenergy. It has the potential to reduce direct and indirect land use change (LUC) and associated environmental impacts while contributing to a favorable economic performance of the agriculture sector. We conduct an integral analysis of environmental and economic impacts of LUC from projected agricultural intensification and bioenergy production in the Orinoquia region in 2030. We compare three agricultural intensification scenarios (low, medium, high) and a reference scenario, which assumes a business-as-usual development of agricultural production. The results show that with current inefficient management or with only very little intensification between 26% and 93% of the existing natural vegetation areas will be converted to agricultural land to meet increasing food demand. This results in the loss of biodiversity by 53% and increased water consumption by 111%. In the medium and high scenarios, the intensification allows meeting increased food demand within current agricultural lands and even generating surplus land which can be used to produce bioenergy crops. This results in the reduction of biodiversity loss by 8-13% with medium and high levels of intensification compared to the situation in 2018. Also, a positive economic performance is observed, stemming primarily from intensification of cattle production and additional energy crop production. Despite increasing irrigation efficiency in more intensive production systems, the water demand for perennial crops and cattle production over the dry season increases significantly, thus sustainable management practices that target efficient water use are needed. Agricultural productivity improvements, particularly for cattle production, are crucial for reducing the pressure on natural areas from increasing demand for both food products and bioenergy. This implies targeted investments in the agricultural sector and integrated planning of land use. Our results showed that production intensification in the Orinoquia region is a mechanism that could reduce the pressure on natural land and its associated environmental and economic impacts

    Chocó bio-innovador y sustentable

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    La formulación del Plan Estratégico Regional en Ciencia, Tecnología e Innovación del departamento del Chocó (PERCTI) tiene como propósito central señalar el camino para fortalecer el desarrollo propio e intercambio de mejores prácticas en sectores claves; reconocer la formación de expertos en áreas temáticas priorizadas; fortalecer la capacitación del talento humano mediante el aprovechamiento de capacidades instaladas en el territorio; coadyuvar a la transferencia de tecnologías necesarias para impulsar el desarrollo endógeno sustentable y, por supuesto, incentivar la incorporación de conocimiento científico y tecnológico en la cotidianidad de las personas para mejorar su calidad de vida
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