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dc.contributor.authorGaitán-Álvarez, Johanna
dc.date.accessioned2014-05-07T17:28:14Z
dc.date.available2014-05-07T17:28:14Z
dc.date.issued2013
dc.identifier.urihttp://hdl.handle.net/2238/3249
dc.descriptionProyecto de Graduación (Licenciatura en Ingeniería Forestal). Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, 2013.
dc.description.abstractReventazón River Basin is one of the most important for the agricultural production and electricity generation. However agricultural activities have caused high levels of erosion and sediment accumulated in the reservoirs of hydroelectric dams, causing economic losses and decreased the generation of electricity and useful life of reservoirs. Methodology runoff plots was used to quantify the actual rates of erosion, and compare them with theoretical data obtained with the universal soil loss equation (USLE ), which allowed to quantify the effect of vegetation on erosion. Plots were established in four different sites or treatments (A: cedar plantation and melina recently established B: cedar and cocoa plantation, C: Agricultural crop, D: grass), with 3 replicates each one. Erosion rates recorded at each site was 1.01 t ha-1 yr-1 , 1.71 t ha-1 yr-1 , 6.05 t ha-1yr-1 and 1.61 t ha -1 yr-1, respectively, which were overestimated by 73 % by USLE . An analysis of variance (ANOVA), and comparison of means Tukey (α= 0,05) on Info Stat- e was made, and it was determined that between the A, B and D sites there`s not significant differences , and that both these three differ from site C. To the conclusion that the cover will have a directly proportional effect on the loss of 3 soil, this feature to retain rainwater and assist soil against infiltration and structure thereof, significantly reducing the amount of soil removal.es_CR
dc.language.isoeses_CR
dc.publisherInstituto Tecnológico de Costa Ricaes_CR
dc.subjectProducción agrícolaes_CR
dc.subjectSedimentaciónes_CR
dc.subjectPlantacioneses_CR
dc.subjectEmbalseses_CR
dc.subjectCultivoses_CR
dc.subjectVegetaciónes_CR
dc.subjectAgua infiltradaes_CR
dc.titleEvaluación de erosión hídrica en suelos bajo cobertura forestal y agrícola, en la Cuenca del Río Reventazón, Costa Rica.es_CR
dc.typelicentiateThesises_CR


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