PRECIPITAÇÃO PROVÁVEL DECENDIAL E LÂMINAS SUPLEMENTARES DE IRRIGAÇÃO PARA AS PRINCIPAIS CULTURAS DO MUNICÍPIO DE UNAÍ-MG
PRECIPITAÇÃO PROVÁVEL DECENDIAL E LÂMINAS SUPLEMENTARES DE IRRIGAÇÃO PARA AS PRINCIPAIS CULTURAS DO MUNICÍPIO DE UNAÍ-MG
DOI: https://doi.org/10.22533/at.ed.1072511025
Palavras-chave: Distribuição Gama, precipitação provável, planejamento agropecuário, irrigação.
Keywords: Gama porbability distribution model, probable precipitation, planning agricultural, irrigation.
Abstract: The growing demand for food aligned with sustainable production requires new forms of agricultural production. Probable precipitation can contribute to the planning and dimensioning of the irrigation system, contributing to a more rational management of water resources. The objective of this work was to compare the probability distributions adjusted to the decennial historical series and to estimate the probable precipitations for the Unaí County, Minas Gerais State, Brazil. The months of January, February and March were studied, with more than 20 years of historical series observed. Daily rainfall depths were totaled in decennial periods and applying Gama and log-Normal 3 parameters probability distribution models. Probability distributions models, were compared with Qui-square statical and the Ven Te Chow equation to calculate the probable precipitation at levels of 75% and 90% probability. The Gamma distribution was the one that best fit the data. Probable precipitation at levels of 75% and 90% probability does not meet the water needs of the studied crops. However, the probable precipitation study is a good resource for irrigation planning.
- LEONARDO FRANÇA DA SILVA
- Álisson Moreira Borges
- Donizete dos Reis Pereira
- Denis Medina Guedes
- Josiane Rosa Silva de Oliveira
- Jessica Mansur Siqueira Crusoé
- Cristiano Márcio Alves de Souza
- Fernanda Lamede Ferreira de Jesus
- Letícia Cibele da Silva Ramos Freitas