Abrupt changes in rainfall in the Eastern area of La Pampa Province, Argentina
The eastern area of La Pampa Province, Argentina, lies in a transition zone between the humid temperate climate stretching east and the steppe climate stretching west. The area is thus very sensitive to abrupt changes in rainfall. In order to determine the long-term occurrence of such phenomena, lon...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2011Perez.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Abrupt changes in rainfall in the Eastern area of La Pampa Province, Argentina |
| 520 | |a The eastern area of La Pampa Province, Argentina, lies in a transition zone between the humid temperate climate stretching east and the steppe climate stretching west. The area is thus very sensitive to abrupt changes in rainfall. In order to determine the long-term occurrence of such phenomena, long-term annual precipitation series [1921-2004] from 17 stations in the study area were analyzed using the Buishand and Pettitt tests. Results showed a sharp increase in annual rainfall at the southern stations in the 1960s and at the northern and central stations in the 1970s. Increased rainfall can be considered one of the reasons for the subsequent expansion in land planted to crops in the region. While a rapid increase in rainfall can be seen as positive, some researchers believe that if an abrupt decrease in rainfall occurred in future and continued for long, the carrying capacity of the environment could be exceeded, leading to decreased production and environmental degradation. | ||
| 653 | 0 | |a CLIMATIC REGION | |
| 653 | 0 | |a PRECIPITATION [CLIMATOLOGY] | |
| 653 | 0 | |a RAINFALL | |
| 653 | 0 | |a REGIONAL CLIMATE | |
| 653 | 0 | |a SENSITIVITY ANALYSIS | |
| 653 | 0 | |a TREND ANALYSIS | |
| 653 | 0 | |a ARGENTINA | |
| 653 | 0 | |a LA PAMPA | |
| 700 | 1 | |a Pérez, S. |9 71806 | |
| 700 | 1 | |a Sierra, Eduardo Mario |9 16676 | |
| 700 | 1 | |a López, E. |9 47833 | |
| 700 | 1 | |a Nizzero, Gustavo Raúl |9 22080 | |
| 700 | 1 | |9 40155 |a Momo, Fernando Roberto | |
| 700 | 1 | |9 24867 |a Massobrio, Marcelo Juan | |
| 773 | |t Theoretical and Applied Climatology |g Vol.103, no.1 (2011), p.159-165 | ||
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| 900 | |a ^tAbrupt changes in rainfall in the Eastern area of La Pampa Province, Argentina | ||
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| 900 | |a ^aPérez^bS.^tFaculty of Agronomy, University of Buenos Aires, Avenida San MartÃn 4453 Buenos Aires, Argentina | ||
| 900 | |a ^aSierra^bE.^tInstitute of Sciences, National University of General Sarmiento, Juan M. Gutiérrez 1150, Los Polvorines, Buenos Aires, Argentina | ||
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| 900 | |a Vol. 103, no. 1 | ||
| 900 | |a 165 | ||
| 900 | |a CLIMATIC REGION | ||
| 900 | |a PRECIPITATION [CLIMATOLOGY] | ||
| 900 | |a RAINFALL | ||
| 900 | |a REGIONAL CLIMATE | ||
| 900 | |a SENSITIVITY ANALYSIS | ||
| 900 | |a TREND ANALYSIS | ||
| 900 | |a ARGENTINA | ||
| 900 | |a LA PAMPA | ||
| 900 | |a The eastern area of La Pampa Province, Argentina, lies in a transition zone between the humid temperate climate stretching east and the steppe climate stretching west. The area is thus very sensitive to abrupt changes in rainfall. In order to determine the long-term occurrence of such phenomena, long-term annual precipitation series [1921-2004] from 17 stations in the study area were analyzed using the Buishand and Pettitt tests. Results showed a sharp increase in annual rainfall at the southern stations in the 1960s and at the northern and central stations in the 1970s. Increased rainfall can be considered one of the reasons for the subsequent expansion in land planted to crops in the region. While a rapid increase in rainfall can be seen as positive, some researchers believe that if an abrupt decrease in rainfall occurred in future and continued for long, the carrying capacity of the environment could be exceeded, leading to decreased production and environmental degradation. | ||
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