Effect of the size of historic series on demand of water in Gorutuba irrigation district, Minas Gerais, Brazil

Revista Brasileira de Engenharia Agrícola e Ambiental

Carvalho, Daniel Fonseca de⁴  Ferreira, Expedito José¹  Marques, Débora Candeias²  Oliveira, Luiz Fernando Coutinho de³ 

[1] CODEVASF, Montes Claros;UFRRJ;UFG, Goiânia;UFRRJ, Seropédica

关键词: dependable precipitation;    evapotranspiration;    irrigation demand;    irrigation district    INTRODUÇÃO Em decorrência da instabilidade climática;    a maior parte do nordeste brasileiro;    incluindo algumas regiões do Estado de Minas Gerais;    mostra um dramático quadro de destruição de lavouras;    desemprego e fome;   

DOI  :  10.1590/S1415-43662000000300015

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

With the objective of studying the effect of the size of different historic series of climatic data in the volume of water, in the Gorutuba Irrigation District, a computer model and three historic series with different sizes were considered. For each one, the volume of water was simulated and was compared with the volume of water measured in the year of 1996. The results showed that using a historical series of 1984-1994, the volumes of water were lower 16.2% per month than based on 1984-98, and 53.8% per month with regard to estimated on data of 1996, and that the number of years of historic series may have strong influence on the estimation of the irrigation water volume.

【 授权许可】

CC BY-NC