Variabilidade espacial do microclima proporcionado por Eucalyptus gradis W. Hill x Maiden em sistema silvipastoril
Studies related to the sustainable management of farms are growing as a major concern is deforestation for food production by the conventional method, which is one of the major contributors to global climate change. With the high demand for improvement and concerns about the environment, production...
| Autor principal: | Germano, Aline Delfino |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/10891 |
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| Resumo: |
Studies related to the sustainable management of farms are growing as a major concern is deforestation for food production by the conventional method, which is one of the major contributors to global climate change. With the high demand for improvement and concerns about the environment, production systems have been adapted to be more productive and at the same time sustainable, preserving water sources and existing biomes. In order to reduce environmental impacts, agroforestry systems consist of alternatives that cover sustainability and income in one space and time. Within these, the silvopastoral system contributes to the production of animal fodder and trees, bringing miscellaneous income and contributing to sustainability. Thus, the aim of this study by evaluating the spatial variability of microclimate provided by Eucalyptus grandis W. Hill x Maiden in silvopastoral system. The survey was conducted in the municipality of Enéas Marques (PR) in a property with silvopastoral system for dairy cattle in the months from April to September 2015. The survey was analyzed using the geostatistical inference, using the ordinary kriging method, 96 were chosen sampling points. The points were sampled at three times they are 8, 12 and 16 hours, but every time we carried out a measurement in full sun. The variables sampled were: air temperature and surface, relative humidity, wind speed and brightness. All variables were measured at 0.20 and 1.5 meters from the ground. Data were tabulated and analyzed by statistical software R. The results showed that for the height 0.20 m soil light intensity, air temperature and the surface were lower in the silvopastoral system, since the relative humidity was higher within the system. To the height of 1.5 meters the brightness and relative humidity had a higher within the system, but the temperature had to be lower than in the silvopastoral system. The temperature-humidity index was within the desirable standards for thermal comfort inside the silvopastoral system. The obtained different models tested parameters and spatial dependence for microclimatic variables, however the circular model best set of these variables: relative humidity (0,20 m), wind speed (0.20 and 1.5 m) surface temperature and the temperature and humidity index. The spatial variability of microclimatic variables occurred according to the angle at which the sun was in the measured periods. Therefore, it is recommended to carry out the management of pickets using spatial variability of information, both for the animal thermal comfort as to the optimal forage production in silvopastoral system. |
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