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| Flores Gallardo, Hilario. |
| El desarrollo de los cultivos depende principalmente de las condiciones ambientales que se presentan durante el ciclo fenológico de los cultivos y de las prácticas de manejo que se utilicen. Debido a lo anterior, la agricultura es el sector productivo más susceptible a la variabilidad climática y por lo tanto, al cambio climático. El cambio climático es atribuido a las actividades antropogénicas y durante los últimos años ha sido aceptado como un fenómeno real que representa una gran amenaza para la producción de alimentos. En el presente estudio se utilizó el modelo AquaCrop para simular el desarrollo y el rendimiento del cultivo de maíz (Zea mays L.) bajo condiciones climáticas actuales y bajo los escenarios de cambio climático A1B y A2. El modelo... |
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Palavras-chave: Adaptación; Rendimiento; Modelación de cultivos; Variabilidad climática; Adaptation; Climatic variability; Crop model; Yield; Maestría; Hidrociencias. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/334 |
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| Grzegozewski,Denise M.; Uribe-Opazo,Miguel A.; Johann,Jerry A.; Guedes,Luciana P. C.. |
| ABSTRACT The survey information from growing regions, the interaction with the vegetation index and climatic variables is of great importance in the search for soybean productivity increase. Paraná is the second largest soybean producer in Brazil and presents great spatial variability, both in periods of the crop cycle as in soil and climate. The objective of this study was to analyze the spatial correlation of soybean productivity, the enhanced vegetation index (EVI) and agrometeorological variables (water balance, global radiation and average temperature) in the state of Paraná, on a decendial scale, using the Moran global autocorrelation index between the 2010/2011 and 2012/2013 crop years. Similarity was found in the average productivities in 2010/2011... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culture cycle; Spatial statistics of areas; Climatic variability. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300541 |
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| Alory, G; Delcroix, T. |
| h-lean conditions, seasonal, and ENSO-related (El Nine Southern Oscillation) variability in the vicinity of Wallis, Futuna, and Samoa islands (13 degrees-15 degrees S, 180 degrees-170 degrees W) over the 1973-1995 period are analysed for wind pseudostress, satellite-derived and in situ precipitation, sea surface temperature (SST) and salinity (SSS), sea level, and 0-450 m temperature and geostrophic current. The mean local conditions reflect the presence of the large scale features such as the western Pacific warm pool, the South Pacific Convergence Zone (SPCZ), and the South Pacific anticyclonic gyre. The seasonal changes are closely related to the meridional migrations of the SPCZ, which passes twice a year over the region of study. During the warm phase... |
| Tipo: Text |
Palavras-chave: Wallis et Futuna; Samoa; El Niño Oscillation Australe; Variabilité climatique; Wallis and Futuna; Samoa; El Nino Southern Oscillation; Climatic variability. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43608/43913.pdf |
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| Senaratne, Athula; Scarborough, Helen. |
| Climate change introduces numerous uncertainties over the livelihoods of farming communities that depend heavily on weather and climate. Rain-fed farmers in developing countries are among the most vulnerable communities. However, climate risks are not new to farmers. Coping with ‘natural variability’ of climate has been a constant challenge faced by farmers even though broad sweeping change in climate due to anthropogenic causes is a relatively new prospect. Some argue ‘climate change’ could be significantly different from ‘climatic variability’ known to and experienced by farmers. In spite of this it is widely accepted that understanding farmers’ behavior towards adapting to climatic variability could generate useful insights in facing the risk of climate... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Adaptation; Climatic variability; Village tanks; Climate change; Rain-fed farmer; Environmental Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/100707 |
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| Meinke,H.; Stone,R.C.. |
| The El Niño/Southern Oscillation phenomenon strongly influences rainfall distribution around the world. Using phases of the Southern Oscillation Index (SOI) allows a probabilistic forecast of future rainfall that can be useful to managers of agricultural systems. Using wheat as an example, we show in this study how the SOI phase system, when combined with a cropping systems simulation capability, can be used operationally to Improve tactical crop management and hence increase farm profits and/or decrease production risks. We show the validity of the approach for two contrasting locations, namely Dalby in Northern Australian and Piracicaba in Brazil At Dalby, highest median yields were achieved following a rapidly rising SOI phase in April/May and lowest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climatic variability; Crop and systems modelling; Crop production forecasts. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000300014 |
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