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  • Authors: Jiménez, Daniel; Delerce, Sylvain Jean; Dorado, Hugo;

    The International Center for Tropical Agriculture and the Colombian Rice Association (Federación Nacional de Arroceros, FEDEARROZ) conducted a project-oriented to strength the adaptation capabilities of facing weather variability and climate change for the rice sector. One of the main objectives of this project was to improve the competences of FEDEARROZ for recording, storing and analyzing data. Emphasized on crop-environmental knowledge interaction. Through this project, both institutions carried through several analyses per locality and system. These results showed the strong influence that has the weather variables on productivity variations. In addition, FEDEARROZ passed through a training process offered by CIAT, in order to develop skills in technicians and researchers for data decision making.

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  • Authors: Bustamante, Mercedes; Gavito, Mayra E; Jiménez, Alejandro; Loboguerrero Rodriguez, Ana María; +4 Authors

    La implementación efectiva de estrategias de adaptación para contrarrestar los impactos del cambio climático sobre los ecosistemas, su biodiversidad y los medios de subsistencia requiere una comprensión clara de cómo el cambio climático influirá en el funcionamiento y la distribución futura de los ecosistemas. El cambio climático afectará a la precipitación efectiva y a la producción primaria en los sistemas naturales, con consecuencias a corto plazo y efectos a más largo plazo debido a la degradación. La pérdida de conectividad entre los fragmentos de los ecosistemas nativos y la introducción de especies invasoras, unidas a la fuerte variabilidad climática, amenazan la biodiversidad y las funciones de los ecosistemas. La espiral de degradación ambiental resultante agota progresivamente los servicios de los ecosistemas y reduce su capacidad para adaptarse al cambio climático.

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  • Authors: International Center for Tropical Agriculture;
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  • Authors: Montero, M.; Kanninen, M.;

    Biomass and carbon in Terminalia amazonia plantations in the South of Costa Rica. The study was carried out in a spacing trial with an experimental design consisting of randomized complete blocks, with three treatments and three replicates. Treatments were 2 m x 2 m (2500 trees/ha), 2.5 m x 2.5 m (1.600 trees/ha) and 3 m x 3 m (1111 trees/ha). The trial is located in Mogos, Osa Peninsula, Puntarenas, Costa Rica. Results at 10 years of age indicate significant differences between treatments. These differences suggest that the stand density of 1600 trees/ha is the best option to maximize diameter growth and total height, as well as a greater yield of Terminalia amazonia. Results of wood density found in this study are similar to those reported in the literature (0.70 g/cm3). The biomass expansion factor (BEF) for this plantation is similar to that reported for natural forests. The factor to calculate the BEF for an individual tree is 1.3, and 1.2 per hectare. The allometric models adjusted for predicting biomass on the different tree components in relation to dbh had a satisfactory adjustment. The determination coefficients explained an average of 93% of data variability. The carbon fraction determined for the tree components of T. amazonia, as well as the different spacings, did not show a significant variation. The average values for stem, branches and foliage were 0.48, 0.43, and 0.42, respectively. The aboveground biomass per tree component under the 3 m x 3 m spacing differed from the other two treatments. Dry biomass production was greater at 1600 trees/ha density. The carbon stored by different tree components at the age of 10 years suggests that T. amazonia stores carbon in a more efficient manner under the 2.5 m x 2.5 m spacing (1600 trees/ha), with a rate of 4.9 Mg/ha/year.

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  • Authors: Alliance of Bioversity International and CIAT;

    Nuestro planeta enfrenta cuatro crisis mundiales interconectadas: cambio climático, pérdida de la biodiversidad, degradación ambiental y malnutrición. Los sistemas alimentarios son a la vez un determinante importante de estas crisis y una víctima. Estos sistemas pueden, y deben, ser parte de la solución

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  • Authors: Castillo, N.; Zonneveld, M. van;

    Aguacate (Persea) y anonas (Annona) están entre los géneros de frutales más importantes nativos del neotrópico. Sus productos tienen un potencial alto para mercados nacionales y son una fuente nutricional promisoria en sistemas de alimentación local. Con el presente trabajo se espera identificar el potencial ecológico de aguacate y anonas para la diversificación de los paisajes cafetales en America Central para mejorar la seguridad alimentaria y nutricional de familias caficulturas, y como posibles cultivos alternativos para generar ingresos. Secundariamente, y para ello, identificamos el área de distribución potencial actual y futura de las especies cultivadas y parientes de los géneros Persea y Annona en América Latina y evaluamos su estado de conservación y diversidad interespecífica. Las hipótesis que planteamos son: 1) los frutales neotropicales son ecológicamente aptos para la diversificación de los paisajes cafetales en América Central, 2) el Cambio Climático tiene un impacto negativo en las especies de frutales seleccionadas, y 3) los parientes de estos frutales pueden servir como recurso para mejoramiento de los mismos ante el Cambio Climático. Se modeló la distribución potencial de los frutales y sus parientes silvestres aplicando el Software Maxent bajo condiciones climáticas actuales y proyecciones climáticas para las 2050s considerando dos escenarios de emisión del IPCC. Los áreas de distribución potencial actual y futura obtenidos se sobrepusieron sobre el área de producción actual de café en América Central para saber cuáles frutales tenían mayor potencial para diversificación en estos areas. Contrariamente a la hipótesis que planteábamos, los resultados obtenidos sugieren que los parientes de los cultivos de aguacate no son tan prioritarios para mejoramiento de agucates a nuevas condiciones climaticas como lo es la diversidad genetica del propio cultigen P. americana Mill. Asimismo, y en base a los análisis realizados, se puede decir que entre las especies evaluadas, la especie con mayor ...

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  • Authors: Osorio, Jaime; Bojaca, Vanessa; Hernandez Quevedo, Monica Paola; Rodriguez Camayo, Fernando; +1 Authors

    Este documento presenta el resultado del estudio de mercado realizado para identificar información, características y/o condicionantes relevantes de un ambiente habilitador de servicios financieros de resiliencia climática en la ganadería de los departamentos Izabal, Jutiapa y Santa Rosa de Guatemala. Fue realizado a través de la división de actores en tres grupos, de acuerdo con su nivel de interacción con la cadena productiva de la ganadería. Para cada grupo de actores se desarrollaron una serie de instrumentos los cuáles fueron aplicados de manera virtual y presencial. Los datos copilados fueron anonimizados y presentados de manera consolidada, de forma estadística en el presente informe.

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  • Authors: David, O.; Llamas Prado, S.; Montero, J.;
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  • Authors: Ferrera Gomez, Norma Raquel; Obando Bonilla, Diego;

    Se detalla el proceso participativo, el cual fue orientado a identificar las principales amenazas climáticas que impactan los medios de vida agroalimentarios de las familias, los factores de sensibilidad, las causas y las acciones que se deben implementar, en el territorio para poder así adaptarnos y ser más resilientes al cambio climático. Se realizó un análisis de las necesidades y recursos locales existentes para ser utilizados al momento de la implementación y seguimiento, alineando dicho proceso a una estrategia municipal, a través de la cual facilite su ejecución de forma coordinada con las distintas entidades municipales, sociedad civil, mancomunidad y otros actores. El medio de vida de las familias de Los Naranjos, es la agricultura familiar, donde su principal cultivo de producción es el café, teniendo ciertos desafíos con la roya, y otras enfermedades incrementadas por variaciones del clima.

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  • Authors: Gómez, Lorena; Valdivia, Arely; Martínez, Armando; Rodríguez, Massiel;

    El proyecto del Programa de Investigación de CGIAR en Cambio Climático, Agricultura y Seguridad Alimentaria (CCAFS) cuyo objetivo es el desarrollo de capacidades sobre la Agricultura Sostenible Adaptada al Clima (ASAC) en Centroamérica para fortalecer las políticas y la toma de decisiones para las acciones de adaptación y mitigación del cambio climático, presenta un reporte con los avances y logros alcanzados durante el 2019.

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397 Research products
  • Authors: Jiménez, Daniel; Delerce, Sylvain Jean; Dorado, Hugo;

    The International Center for Tropical Agriculture and the Colombian Rice Association (Federación Nacional de Arroceros, FEDEARROZ) conducted a project-oriented to strength the adaptation capabilities of facing weather variability and climate change for the rice sector. One of the main objectives of this project was to improve the competences of FEDEARROZ for recording, storing and analyzing data. Emphasized on crop-environmental knowledge interaction. Through this project, both institutions carried through several analyses per locality and system. These results showed the strong influence that has the weather variables on productivity variations. In addition, FEDEARROZ passed through a training process offered by CIAT, in order to develop skills in technicians and researchers for data decision making.

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  • Authors: Bustamante, Mercedes; Gavito, Mayra E; Jiménez, Alejandro; Loboguerrero Rodriguez, Ana María; +4 Authors

    La implementación efectiva de estrategias de adaptación para contrarrestar los impactos del cambio climático sobre los ecosistemas, su biodiversidad y los medios de subsistencia requiere una comprensión clara de cómo el cambio climático influirá en el funcionamiento y la distribución futura de los ecosistemas. El cambio climático afectará a la precipitación efectiva y a la producción primaria en los sistemas naturales, con consecuencias a corto plazo y efectos a más largo plazo debido a la degradación. La pérdida de conectividad entre los fragmentos de los ecosistemas nativos y la introducción de especies invasoras, unidas a la fuerte variabilidad climática, amenazan la biodiversidad y las funciones de los ecosistemas. La espiral de degradación ambiental resultante agota progresivamente los servicios de los ecosistemas y reduce su capacidad para adaptarse al cambio climático.

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  • Authors: International Center for Tropical Agriculture;
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  • Authors: Montero, M.; Kanninen, M.;

    Biomass and carbon in Terminalia amazonia plantations in the South of Costa Rica. The study was carried out in a spacing trial with an experimental design consisting of randomized complete blocks, with three treatments and three replicates. Treatments were 2 m x 2 m (2500 trees/ha), 2.5 m x 2.5 m (1.600 trees/ha) and 3 m x 3 m (1111 trees/ha). The trial is located in Mogos, Osa Peninsula, Puntarenas, Costa Rica. Results at 10 years of age indicate significant differences between treatments. These differences suggest that the stand density of 1600 trees/ha is the best option to maximize diameter growth and total height, as well as a greater yield of Terminalia amazonia. Results of wood density found in this study are similar to those reported in the literature (0.70 g/cm3). The biomass expansion factor (BEF) for this plantation is similar to that reported for natural forests. The factor to calculate the BEF for an individual tree is 1.3, and 1.2 per hectare. The allometric models adjusted for predicting biomass on the different tree components in relation to dbh had a satisfactory adjustment. The determination coefficients explained an average of 93% of data variability. The carbon fraction determined for the tree components of T. amazonia, as well as the different spacings, did not show a significant variation. The average values for stem, branches and foliage were 0.48, 0.43, and 0.42, respectively. The aboveground biomass per tree component under the 3 m x 3 m spacing differed from the other two treatments. Dry biomass production was greater at 1600 trees/ha density. The carbon stored by different tree components at the age of 10 years suggests that T. amazonia stores carbon in a more efficient manner under the 2.5 m x 2.5 m spacing (1600 trees/ha), with a rate of 4.9 Mg/ha/year.

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  • Authors: Alliance of Bioversity International and CIAT;

    Nuestro planeta enfrenta cuatro crisis mundiales interconectadas: cambio climático, pérdida de la biodiversidad, degradación ambiental y malnutrición. Los sistemas alimentarios son a la vez un determinante importante de estas crisis y una víctima. Estos sistemas pueden, y deben, ser parte de la solución

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  • Authors: Castillo, N.; Zonneveld, M. van;

    Aguacate (Persea) y anonas (Annona) están entre los géneros de frutales más importantes nativos del neotrópico. Sus productos tienen un potencial alto para mercados nacionales y son una fuente nutricional promisoria en sistemas de alimentación local. Con el presente trabajo se espera identificar el potencial ecológico de aguacate y anonas para la diversificación de los paisajes cafetales en America Central para mejorar la seguridad alimentaria y nutricional de familias caficulturas, y como posibles cultivos alternativos para generar ingresos. Secundariamente, y para ello, identificamos el área de distribución potencial actual y futura de las especies cultivadas y parientes de los géneros Persea y Annona en América Latina y evaluamos su estado de conservación y diversidad interespecífica. Las hipótesis que planteamos son: 1) los frutales neotropicales son ecológicamente aptos para la diversificación de los paisajes cafetales en América Central, 2) el Cambio Climático tiene un impacto negativo en las especies de frutales seleccionadas, y 3) los parientes de estos frutales pueden servir como recurso para mejoramiento de los mismos ante el Cambio Climático. Se modeló la distribución potencial de los frutales y sus parientes silvestres aplicando el Software Maxent bajo condiciones climáticas actuales y proyecciones climáticas para las 2050s considerando dos escenarios de emisión del IPCC. Los áreas de distribución potencial actual y futura obtenidos se sobrepusieron sobre el área de producción actual de café en América Central para saber cuáles frutales tenían mayor potencial para diversificación en estos areas. Contrariamente a la hipótesis que planteábamos, los resultados obtenidos sugieren que los parientes de los cultivos de aguacate no son tan prioritarios para mejoramiento de agucates a nuevas condiciones climaticas como lo es la diversidad genetica del propio cultigen P. americana Mill. Asimismo, y en base a los análisis realizados, se puede decir que entre las especies evaluadas, la especie con mayor ...

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  • Authors: Osorio, Jaime; Bojaca, Vanessa; Hernandez Quevedo, Monica Paola; Rodriguez Camayo, Fernando; +1 Authors

    Este documento presenta el resultado del estudio de mercado realizado para identificar información, características y/o condicionantes relevantes de un ambiente habilitador de servicios financieros de resiliencia climática en la ganadería de los departamentos Izabal, Jutiapa y Santa Rosa de Guatemala. Fue realizado a través de la división de actores en tres grupos, de acuerdo con su nivel de interacción con la cadena productiva de la ganadería. Para cada grupo de actores se desarrollaron una serie de instrumentos los cuáles fueron aplicados de manera virtual y presencial. Los datos copilados fueron anonimizados y presentados de manera consolidada, de forma estadística en el presente informe.

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  • Authors: David, O.; Llamas Prado, S.; Montero, J.;
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  • Authors: Ferrera Gomez, Norma Raquel; Obando Bonilla, Diego;

    Se detalla el proceso participativo, el cual fue orientado a identificar las principales amenazas climáticas que impactan los medios de vida agroalimentarios de las familias, los factores de sensibilidad, las causas y las acciones que se deben implementar, en el territorio para poder así adaptarnos y ser más resilientes al cambio climático. Se realizó un análisis de las necesidades y recursos locales existentes para ser utilizados al momento de la implementación y seguimiento, alineando dicho proceso a una estrategia municipal, a través de la cual facilite su ejecución de forma coordinada con las distintas entidades municipales, sociedad civil, mancomunidad y otros actores. El medio de vida de las familias de Los Naranjos, es la agricultura familiar, donde su principal cultivo de producción es el café, teniendo ciertos desafíos con la roya, y otras enfermedades incrementadas por variaciones del clima.

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  • Authors: Gómez, Lorena; Valdivia, Arely; Martínez, Armando; Rodríguez, Massiel;

    El proyecto del Programa de Investigación de CGIAR en Cambio Climático, Agricultura y Seguridad Alimentaria (CCAFS) cuyo objetivo es el desarrollo de capacidades sobre la Agricultura Sostenible Adaptada al Clima (ASAC) en Centroamérica para fortalecer las políticas y la toma de decisiones para las acciones de adaptación y mitigación del cambio climático, presenta un reporte con los avances y logros alcanzados durante el 2019.

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