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- Title
Erosividad de la lluvia en la región cafetera de Risaralda, Colombia.
- Authors
Lince Salazar, Luz Adriana; Castaño Castaño, Wadi Andrey; Castro Quintero, Andres Felipe; Torres Angarita, Fabio Alexis
- Abstract
The water erosion is considered as the biggest process of loss of cultivable land in the world and it is estimated that the loss is 10 million ha per year. In order to determine the climatic aggressiveness grade and the rain distribution in the coffee region of Risaralda, Colombia, a study using historic data of daily precipitation recorded in 18 stations at Cenicafé - FNC from 1997 to 2011 was carried out. The index of annual rainfall erosivity (R) was estimated using a validated model for the Central Coffee Region of Colombia, which uses the modified Fournier index (MFI). The temporary variability of rainfall distribution was also calculated for every year through the index of precipitation concentration (IPC). 93% of the observations presented MFI higher to 160, indicating that the region was exposed to a very high erosivity. The annual values of R were between 6417 and 11762 MJ.mm.ha-1, corresponding to moderate, high and very high erosivity. ICP indicated that the rainfall distribution is uniform to moderately seasonal, with values between 9,7 and 10,3. The coffee region of Risaralda between 1999 and 2011 was affected by a strong climatic aggressiveness, with increases in April to May and October to November.
- Publication
Revista de Investigación Agraria y Ambiental, 2016, Vol 7, Issue 1, p37
- ISSN
2145-6097
- Publication type
Article
- DOI
10.22490/21456453.1548