340
10
20655
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https://www.socictopen.socict.org/files/original/6e95006c8a1a3c85bffdaad7a4a7f32e.pdf
f31d3994bea4cd4a5cd66f20b13ccdba
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Potential Distribution of Chagas Disease Vectors (Hemiptera, Reduviidae, Triatominae) in Colombia, Based on Ecological Niche Modeling
Creator
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Gabriel Parra-Henao, Laura C. Suárez-Escudero, Sebastián González-Caro
Description
An account of the resource
Ecological niche modeling of Triatominae bugs allow us to establish the local risk of transmission of the parasite Trypanosoma cruzi, which causes Chagas disease. This information could help to guide health authority recommendations on infection monitoring, prevention, and control. In this study, we estimated the geographic distribution of triatomine species in Colombia and identified the relationship between landscape structure and climatic factors influencing their occurrence. A total of 2451 records of 4 triatomine species (Panstrongylus geniculatus, Rhodnius pallescens, R. prolixus, and Triatoma maculata) were analyzed. The variables that provided more information to explain the ecologic niche of these vectors were related to precipitation, altitude, and temperature. We found that the species with the broadest potential geographic distribution were P. geniculatus, R. pallescens, and R. prolixus. In general, the models predicted the highest occurrence probability of these vectors in the eastern slope of the Eastern Cordillera, the southern region of the Magdalena valley, and the Sierra Nevada of Santa Marta.
Date
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2016
Identifier
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10.1155/2016/1439090
Source
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Journal of Tropical Medicine
Publisher
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Hindawi Limited
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Arctic medicine. Tropical medicine
Relation
A related resource
<a href="http://dx.doi.org/10.1155/2016/1439090" target="_blank" rel="noreferrer noopener">http://dx.doi.org/10.1155/2016/1439090</a>
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https://www.socictopen.socict.org/files/original/197b19deae82699c2ef14d9066d215c8.pdf
60e1f87b241ea747e3aa29f4364b06c2
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Velasco, Juan Carlos (2016). El azar de las fronteras. Políticas migratorias, ciudadanía y justicia. Ciudad de México, México: Fondo de Cultura Económica. 372 pp.
Creator
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Luis Esteban Rubio
Description
An account of the resource
Durante la Edad Moderna y Contemporánea numerosos retos se han abordado, de manera ideal o real, desde una perspectiva cosmopolita. El descubrimiento de América, las guerras entre Estados europeos en el siglo XVIII o la Segunda Guerra Mundial, son ejemplos de ello. En la época actual, la humanidad se enfrenta también a una serie de retos globales de gran magnitud: el mantenimiento de la paz, el respeto y garantía de los derechos humanos, el cambio climático, las migraciones internacionales, el aumento de la desigualdad, las pandemias, el terrorismo, los paraísos fiscales o el colapso de los sistemas financieros. La nueva obra de Juan Carlos Velasco busca precisamente abordar con carácter descriptivo, valorativo y normativo uno de esos retos, las migraciones internacionales, y adopta para ello una mirada cosmopolita. La misma se inserta así dentro del corpus teórico de carácter cosmopolita que, principalmente desde el final de la Guerra Fría, una corriente de pensadores (por ejemplo, Seyla Benhabib, Thomas Pogge, Martha Nussbaum o Kwame Anthony Appiah) está desarrollando con la voluntad de dar respuestas a los temas de nuestro tiempo...
Date
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2017
Source
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Las Torres de Lucca
Publisher
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Universidad Complutense de Madrid
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Philosophy (General), Philosophy. Psychology. Religion
Relation
A related resource
<a href="http://lastorresdelucca.org/index.php/ojs/article/view/154" target="_blank" rel="noreferrer noopener">http://lastorresdelucca.org/index.php/ojs/article/view/154</a>
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https://www.socictopen.socict.org/files/original/7112ef174ab7ffb719e8d86a3148f9b9.pdf
b8786c6e628aa29f31b4e7b80099bbb7
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Una aproximación a la representación del cambio climático en habitantes de dos cuencas del estado de Veracruz, México
Creator
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Ana Lucía Maldonado González, Edgar J. González Gaudiano, Gloria Elena Cruz Sánchez
Description
An account of the resource
A través de un instrumento demoscópico que consideró las tres dimensiones de la teoría de las representaciones sociales, se investigaron conocimientos y creencias sobre el cambio climático en población adulta de las cuencas de los ríos Jamapa y Pixquiac. La población de ambas cuencas admite la existencia del cambio climático e identifica problemas ambientales locales, varios de ellos relacionados con el fenómeno en sus causas o consecuencias. Están conscientes del origen antrópico del fenómeno y de que este agrava los problemas seculares de pobreza, migraciones, enfermedades, desnutrición y hambrunas. Es evidente la ausencia de acciones institucionales de mitigación y adaptación. La televisión es el medio por el que la mayoría se informa sobre el tema y las autoridades responsables tienen poca credibilidad entre la población. Pese a todo, no se observa una representación social del cambio climático.
Date
A point or period of time associated with an event in the lifecycle of the resource
2017
Subject
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Educación Ambiental, cambio global, representación social
Identifier
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10.22201/cimsur.18704115e.2017.23.291
Source
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Revista Pueblos y Fronteras Digital
Publisher
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Universidad Nacional Autónoma de México
Coverage
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Social Sciences, Social sciences (General)
Relation
A related resource
<a href="http://www.pueblosyfronteras.unam.mx/index.php/index.php/pyf/article/view/291" target="_blank" rel="noreferrer noopener">http://www.pueblosyfronteras.unam.mx/index.php/index.php/pyf/article/view/291</a>
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https://www.socictopen.socict.org/files/original/4eec1c7a5d758145dbe12b31eb60bb5c.pdf
86b597374f5403ce6361ca77ef40b1ef
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Global Climate Change Impacts in the Sinaloa State, México
Creator
An entity primarily responsible for making the resource
Luis Miguel Flores Campaña, Juan Francisco Arzola-González, Milagros Ramírez-Soto, Amador Osorio-Pérez
Description
An account of the resource
The variation of environmental conditions deriving from global climate change in the state of Sinaloa and its impact on the region's main productive activities have not been sufficiently studied. The article describes various phenomena associated with climate change and its consequences for Sinaloa, analyzes the scarce climate scenarios that include the region, and discusses the modifications caused by tropical cyclones and interannual changes. It also discusses the repercussions of climate change on agricultural activity and aspects related to sea level rise. Finally, the text empathizes on the lack of local estimations and studies that could serve as base for improved planning strategies and initiatives to facilitate adaptation to climate change in the region.
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
Subject
The topic of the resource
México, Sinaloa, cambio climático global, escenarios del clima
Source
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Cuadernos de Geografía: Revista Colombiana de Geografía
Publisher
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Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Geography (General)
Relation
A related resource
<a href="https://revistas.unal.edu.co/index.php/rcg/article/view/25562" target="_blank" rel="noreferrer noopener">https://revistas.unal.edu.co/index.php/rcg/article/view/25562</a>
-
https://www.socictopen.socict.org/files/original/8d8421f951309be14f114ae651d85f12.pdf
5810ad2063769905ecd634ee8d8f7c1c
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Simulación de los requerimientos hídricos de pasturas en un escenario de cambios climáticos generados con análisis espectral singular
Creator
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Andrés Javier Peña Quiñones, Blanca Aurora Arce Barboza, Miguel Ángel Ayarza Moreno, Carlos Eduardo Lascano Aguilar
Description
An account of the resource
Aunque los modelos climáticos globales muestran que cada vez son más altas las tasas de cambio de la temperatura y la precipitación, no proporcionan la información necesaria para que los actores del sistema producción-consumo puedan definir las medidas de adaptación a escala local. En el presente trabajo se demuestra de qué manera se pueden generar escenarios de cambio climático más locales, basados en el análisis de las tendencias de las series de tiempo de los elementos del clima. Se plantea la prueba de Mann-Kendall para determinar si existe tendencia en las series temporales de dos elementos climáticos y el análisis espectral singular para generar escenarios futuros de las variables climáticas analizadas. Los resultados mostraron que en dos municipios de Colombia (El Espinal, Tolima, y Mosquera, Cundinamarca) los pastos pará (Brachiaria mutica) y kikuyo (Pennisetum clandestinum), respectivamente, tienden a requerir más agua por aumento de la evapotranspiración, sin embargo, es la textura del suelo la que determina cambios drásticos entre escenarios climáticos, en términos de requerimientos de riego.
Date
A point or period of time associated with an event in the lifecycle of the resource
2010
Subject
The topic of the resource
Brachiaria mutica, Pennisetum clandestinum, balance hídrico, consumo de agua, evapotranspiración, modelo de simulación, pastos, precipitación atmosférica, temperatura
Source
A related resource from which the described resource is derived
Acta Agronómica
Publisher
An entity responsible for making the resource available
Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Agriculture
Relation
A related resource
<a href="http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122010000100001&lng=en&tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122010000100001&lng=en&tlng=en</a>
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https://www.socictopen.socict.org/files/original/b939cc108bf8af9bb9aced3e48282ac2.pdf
69ef81d93d4cd603b1c50fc3622c5786
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Severity of the 1998 and 2005 bleaching events in Venezuela, southern Caribbean
Creator
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Sebastián Rodríguez, Aldo Cróquer, David Bone, Carolina Bastidas
Description
An account of the resource
This study describes the severity of the 2005 bleaching event at 15 reef sites across Venezuela and compares the 1998 and 2005 bleaching events at one of them. During August and September 2005, bleached corals were first observed on oceanic reefs rather than coastal reefs, affecting 1 to 4% of coral colonies in the community (3 reef sites, n=736 colonies). At that time, however, no bleached corals were recorded along the eastern coast of Venezuela, an area of seasonal upwelling (3 reefs, n=181 colonies). On coastal reefs, bleaching started in October but highest levels were reached in November 2005 and January 2006, when 16% of corals were affected among a wide range of taxa (e.g. scleractinians, octocorals, Millepora and zoanthids). In the Acropora habitats of Los Roques (an oceanic reef), no bleached was recorded in 2005 (four sites, n=643 colonies). At Cayo Sombrero, a coastal reef site, bleaching was less severe in 1998 than in 2005 (9% of the coral colonies involving 2 species vs. 26% involving 23 species, respectively). Our results indicate that bleaching was more severe in 2005 than in 1998 on Venezuelan reefs; however, no mass mortality was observed in either of these two events. Rev. Biol. Trop. 58 (Suppl. 3): 189-196. Epub 2010 October 01.
Date
A point or period of time associated with an event in the lifecycle of the resource
2010
Subject
The topic of the resource
arrecifes, blanqueamiento, calentamiento global, cambios comunitarios
Source
A related resource from which the described resource is derived
Revista de Biología Tropical
Publisher
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Vicerractoría Investigación
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Biology (General)
Relation
A related resource
<a href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000700017&lng=en&tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000700017&lng=en&tlng=en</a>
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https://www.socictopen.socict.org/files/original/d37a4c5da13407bb41f514224f79d8ab.pdf
d13086e1eb622e73fbf63b291fd3830b
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Elites universitarias y cambio climático
Creator
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Cristian Parker Gumucio, Juan Muñoz Rau
Description
An account of the resource
Las medidas para enfrentar el Cambio Climático en el planeta involucran un conjunto de factores entre los cuales la existencia de estructuras y organizaciones que catalicen e impulsen una acción transformadora. La generación de capacidades locales implica la consciencia de la ciudadanía y de las elites acordes con las acciones institucionales de respuesta en los distintos niveles. Basado en una investigación empírica se analizan las orientaciones de las elites estudiantiles universitarias en Chile. Se analizan las percepciones acerca del cambio climático, sobre las medidas de adaptación y /o mitigación y también la visión acerca de las energías renovables no convencionales uno de los principales factores que pueden incidir en la reducción de las emisiones de gas de efecto invernadero.As medidas para enfrentar as mudanças climáticas no planeta envolvem um conjunto de fatores, entre os quais a existência de estruturas e organizações que catalizem e impulsionem uma ação transformadora. A capacitação local envolve a consciência dos cidadãos e das elites, em consonância com as ações de resposta institucional em vários níveis. Com base em um estudo empírico, foram analisadas as orientações das elites estudantis universitárias no Chile. Analisamos as percepções sobre mudanças climáticas, adaptação e/ou mitigação, e também a visão sobre energias renováveis não convencionais, um dos principais fatores que podem reduzir as emissões de gases de efeito estufa.Measures to address climate change on the planet involve a number of factors including the existence of structures and organizations to catalyze and encourage transformative actions. Local capacity building involves the consciousness of citizens and elites in line with the institutional actions to respond at various levels. Based on empirical research the orientations of the elite university students in Chile are analyzed. We focus on the perceptions of climate change, adaptation and / or mitigation measures and the vision of non-conventional renewable energy one of the main factors that may influence the reduction of emissions of greenhouse gases.
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
Subject
The topic of the resource
Ambiente, Cambio climático, Consciência Ambiental, Mudanças Climáticas, climate change, elites universitarias, environment, environmental conscious, university elites
Identifier
An unambiguous reference to the resource within a given context
10.1590/S1414-753X2012000200011
Source
A related resource from which the described resource is derived
Ambiente & Sociedade
Publisher
An entity responsible for making the resource available
Associação Nacional de Pós-Graduação e Pesquisa em Ambiente e Sociedade (ANPPAS)
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Human ecology. Anthropogeography
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1414-753X2012000200011" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1414-753X2012000200011</a>
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https://www.socictopen.socict.org/files/original/5754218b5fe8debeda66b4b65ba118a6.pdf
1636ba069d3b54eab58910805c606ad2
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Efecto de cuatro métodos de labranza sobre las propiedades físicas y la pérdida de suelo en la rotación papa-pastos en áreas de ladera en una región alto andina de Colombia Effect of four tillage methods on the physical properties and loss of soil in the potato-grass rotation in hillside areas of a high Andean region in Colombia
Creator
An entity primarily responsible for making the resource
Napoleón Bernal, Guillermo Montealegre, Sandro N. Ipaz, Oscar Chaparro, Luis M Ramírez
Description
An account of the resource
Este estudio avaluó la pérdida y los cambios en las propiedades físicas del suelo y la producción de papa amarilla Solanum phureja, como resultado de cuatro sistemas de labranza (Tracción humana, LTH; Tracción animal, LTA; Mecánica, LM; y Mecánica combinada, LMC) en Santa Lucía, municipio de Tuluá, región alto andina de Colombia a 2.870 msnm. Los tratamientos se evaluaron usando un diseño de bloques completos al azar con tres repeticiones. La pérdida de suelo se determinó por medio de canaletas de escorrentía. La información se analizó por medio de una matriz de cambio para cada propiedad física. La tracción mecánica afectó negativamente las propiedades físicas del suelo, lo que se evidenció en el incremento de pérdidas por escorrentía. La mayor pérdida de suelo se asoció con el uso de LM y disminuyó hasta el 50% con LTH: (LM 6.12 t ha-1 año-1; LMC 5.0 t ha-1 año-1; LTA 3.7 t ha-1 año-1 and LTH 2.73 t ha-1 año-1). LTA generó la mayor retribución económica y ambiental, porque su producción (13 t/ha) fue mayor que el promedio obtenido en los tratamientos (12.4 t/ha) y la pérdida de suelo fue menor que la generada por LM y LMC.This study evaluated the loss and the changes in the soil physical properties, and the production of yellow potato Solanum phureja, as a result of four tillage systems (Human traction, THT; Animal traction, ATT; Mechanical, MT; and Mechanical combined, CMT) in Santa Lucia, Tuluá municipality, high andean region of Colombia to 2.870 masl. Treatments were evaluated using a completely randomized blocks desing with three replicates, and the data examined by means of a matrix of change for each physical property. Soil loss was determined by the ditch of runoff. Mechanical traction affected the soil physical properties negatively, that became evident in the increment of losses with the runoff. The bigger loss of soil was correlated with MT use and it diminished to the 50 % with HTT: (MT 6.12 tha-1 year-1; CMT 5.0 tha-1 year-1; ATT 3.7 tha-1 year-1 and HTT 2.73 tha-1 year-1). ATT generated the bigger cost-reducing and environmental retribution, because his production (13 tha-1) was major than the average obtained in the treatments (12.4 tha-1) and the lost one belonging to ground was minor than the generated for MT and CMT.
Date
A point or period of time associated with an event in the lifecycle of the resource
2008
Subject
The topic of the resource
High Andean region, Hillsides soils, Métodos de labranza, Región Alto Andina, Tillage methods, erosion, grasses-yellow-potato Solanum phureja rotation, rotación papa-pasto, soil loss, soil physical properties, suelos de laderas
Source
A related resource from which the described resource is derived
Acta Agronómica
Publisher
An entity responsible for making the resource available
Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Agriculture
Relation
A related resource
<a href="http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122008000100005" target="_blank" rel="noreferrer noopener">http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122008000100005</a>
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https://www.socictopen.socict.org/files/original/42fee2dfc21b0bdfb76a4b8a14f84a4b.pdf
6cf1de898886b054b26cd5a5c2d35a56
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Evapotranspiration and crop coefficient for potato in organic farming Evapotranspiração e coeficiente de cultivo da batata em sistema agroecológico de produção
Creator
An entity primarily responsible for making the resource
Daniel F. de Carvalho, Dione G. da Silva, Hermes S. da Rocha, Wilk S. de Almeida, Eraldo da S. Sousa
Description
An account of the resource
The aim of this study was to quantify the water consumption and the crop coefficients (Kc) for the potato (Solanum tuberosum L.), in Seropédica, Rio de Janeiro (RJ), Brazil, under organic management, and to simulate the crop evapotranspiration (ETc) using the Kc obtained in the field and the ones recommended by the Food and Agriculture Organization (FAO). The water consumption was obtained through soil water balance, using TDR probes installed at 0.15m and 0.30m deep. At the different stages of development, the Kc was determined by the ratio of ETc and reference evapotranspiration, obtained by Penman-Monteith FAO 56. The crop coefficients obtained were 0.35, 0.45, 1.29 and 0.63. The accumulated ETc obtained in the field was 109.6 mm, while the ETc accumulated from FAO's Kc were 142.2 and 138mm, respectively, considering the classical values and the values adjusted to the local climatic conditions. The simulation of water consumption based on meteorological data of historical series from 1961 to 2007 provided higher value of ETc when compared with the one obtained in the field. From the meteorological data of historical series, it was observed that the use of Kc recommended by FAO may overestimate the amount of irrigation water by 9%, over the same growing season.O trabalho foi desenvolvido visando a quantificar, sob manejo agroecológico, o consumo hídrico e os kcs para a cultura da batata (Solanum tuberosum L.), em Seropédica (RJ), e a simular a evapotranspiração da cultura (ETc), utilizando os kcs obtidos e os kcs preconizados pela FAO. O consumo hídrico foi obtido por meio do balanço hídrico do solo, utilizando sondas de TDR instaladas a 0,15 e 0,30 m de profundidade. Nas diferentes fases de desenvolvimento, o kc foi determinado pela razão entre a ETc e a evapotranspiração de referência, obtida por Penman-Monteith FAO 56. Os kcs obtidos foram 0,35; 0,45; 1,29 e 0,63. A ETc acumulada obtida em campo foi de 109,6 mm, enquanto as ETcs acumuladas a partir dos kcs FAO foram de 142,2 e 138,0 mm, respectivamente, considerando os valores clássicos e os corrigidos para as condições climáticas locais. A simulação do consumo hídrico com base nos dados meteorológicos da série histórica de 1961 a 2007 proporcionou valor maior de ETc quando comparado ao obtido em campo. A partir dos dados meteorológicos obtidos na série histórica, observou-se que a utilização de kcs preconizados pela FAO pode superestimar a quantidade de água na irrigação em 9%, considerando o mesmo período de cultivo.
Date
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2013
Subject
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Solanum tuberosum L, irrigation, irrigação, reflectometria no domínio no tempo, time domain reflectometry
Source
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Engenharia Agrícola
Publisher
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Sociedade Brasileira de Engenharia Agrícola
Coverage
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Agriculture (General)
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000100020" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000100020</a>
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https://www.socictopen.socict.org/files/original/c45bed0da6f9348ed3bc09d440edafa6.pdf
0f04418623ed8739899e37444b1a8a0d
Dublin Core
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Title
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Agricultura sostenible
Description
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Dominio científico: Agricultura sostenible
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Evaluation of the Impact of Climatic Change on the Economic Value of Land in Agricultural Systems in Chile Evaluación del Impacto del Cambio Climático sobre el Valor Económico de la Tierra en Sistemas Agrícolas de Chile
Creator
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Jorge González U, Roberto Velasco H
Description
An account of the resource
Climatic change will affect crop yields and management. By the year 2050, the mean temperature could increase by 1.5 ºC; and by the year 2100 between 1.0 to 3.5 ºC. There are few studies on this subject in Chile. At the international level, estimated climatic changes in temperate and tropical zones could negatively affect wheat (Triticum vulgare L.) and corn (Zea mays L.) production, as examples. The objective of this study was to determine the relationship between agricultural systems and climatic change by using the Ricardian Method. Specific objectives were to evaluate and quantify the relationship of climatic variables (precipitation and temperature) with economic variables under several realities of farms, to simulate the impact of scenarios of climatic change, to propose general orientations of adaptation and to evaluate the Ricardian Method with Chilean data. Economic and productive information from farmers belonging to Technological Transfer Groups (GTT) of the Agricultural Research Institute (INIA) was collected. The Ricardian Method explained 37.6% of land value variation. The highest values were in areas with moderate temperatures and precipitation. Temperature had a lower relationship to land value than precipitation. Under specific conditions (type of producer, irrigation, extension) were detected behaviors that require further analysis. Upon simulating change of temperature and precipitation, the negative impacts on land value tended to be of lower magnitude than in other warmer regions. A tendency was observed for increased temperature to be beneficial, and a neutral to positive effect with less precipitation. The outputs could initially guide specific strategies of adaptation and mitigationEl cambio climático afectará los rendimientos y manejo de los cultivos agrícolas. Se estima que al año 2050 la temperatura media aumentaría 1,5 ºC, y al 2100 entre 1,0 y 3,5 ºC. En Chile existen pocos estudios sobre el tema. Internacionalmente se estiman cambios en zonas templadas y tropicales que afectarían negativamente, por ejemplo, al cultivo de trigo (Triticum vulgare L.) y maíz (Zea mays L.). El objetivo de este estudio fue determinar la relación entre sistemas agropecuarios y cambio climático aplicando el Método Ricardiano. Los objetivos específicos fueron evaluar y cuantificar la relación de las variables climáticas (precipitación y temperatura) con variables económicas bajo diferentes realidades prediales, simular impacto de escenarios de cambio climático, proponer orientaciones generales de adaptación y evaluar el Método Ricardiano con datos chilenos. Se colectó información económica-productiva de agricultores de los Grupos de Transferencia Tecnológica (GTT) del Instituto de Investigaciones Agropecuarias (INIA). El Método Ricardiano explicó el 37,6% de la variación del valor del suelo. Los mayores valores estaban en localidades con temperaturas y precipitaciones moderadas. La temperatura presentó menor relación con el valor del suelo que la precipitación. Bajo algunas condiciones (tipo de productor, riego, capacitación) se detectaron comportamientos que requieren mayor análisis. Al simular cambios de temperatura y precipitación los impactos negativos en el valor del suelo tienden a ser menores que en regiones cálidas. Incluso se observó una leve tendencia a ser beneficiosos al aumentar la temperatura, y neutros a positivos con precipitaciones menores. Los resultados pueden orientar inicialmente estrategias específicas de adaptación y mitigación
Date
A point or period of time associated with an event in the lifecycle of the resource
2008
Subject
The topic of the resource
Cambio climático, Método Ricardiano, Productividad, Ricardian method, climate change, land productivity, land value, policy of adaptation, políticas de mitigación, valor tierra
Source
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Chilean Journal of Agricultural Research
Publisher
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Instituto de Investigaciones Agropecuarias, INIA
Coverage
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Agriculture, Environmental sciences
Relation
A related resource
<a href="http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000100006" target="_blank" rel="noreferrer noopener">http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000100006</a>