2018
DOI: 10.31062/agrom.v25i1.26264
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Delimitação de regiões agroclimaticamente homogêneas no Brasil

Abstract: Uma dificuldade para a elaboração de estudos de zoneamento no Brasil é a inconsistência espacial e temporal das séries de dados meteorológicos no país. O objetivo deste trabalho é delimitar um conjunto de regiões agroclimaticamente homogêneas (RH), baseadas em um processo de agrupamento posteriormente assistido por indicadores espaciais complementares, de forma a permitir zoneamentos espacialmente precisos com menor número de pontos de observação. Uma primeira aproximação das RH foi gerada a partir dos resulta… Show more

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“…In this case, water efficiency is defined by the values of the relative evapotranspiration index (ETr/ETm) expressed by WRSI step 3 in the ZARC studies. This indicator has been used to evaluate environmental effects, particularly those caused by drought, on crop yield, both in Brazil and in other countries (Monteiro et al, 2017).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…In this case, water efficiency is defined by the values of the relative evapotranspiration index (ETr/ETm) expressed by WRSI step 3 in the ZARC studies. This indicator has been used to evaluate environmental effects, particularly those caused by drought, on crop yield, both in Brazil and in other countries (Monteiro et al, 2017).…”
Section: Resultsmentioning
confidence: 99%
“…More details are found in Monteiro et al (2017) and Pasinato (2017) regarding the parameterization of the potential evapotranspiration model for Brazil based on the Hargreaves & Samani (1985) method; the composition of the rainfall database, including 3,500 meteorological stations of the networks of Agência Nacional de Águas (ANA) and Instituto Nacional de Meteorologia (Inmet); and the duration of the phenological phases, as well as the crop coefficient curves (Kc), of three groups of wheat cultivars at 105, 115, and 125 days.…”
Section: Methodsmentioning
confidence: 99%