Title:	Análise de tendência e mudança nos riscos no Zoneamento Agrícola de Risco Climático (Zarc).
Authors:	BENDER, F. D. MONTEIRO, J. E. B. de A. VICTORIA, D. de C. CUADRA, S. V. OLIVEIRA, A. F. de
Affiliation:	FABIANI DENISE BENDER; JOSE EDUARDO BOFFINO DE ALMEIDA MONTEIRO, CNPTIA; DANIEL DE CASTRO VICTORIA, CNPTIA; SANTIAGO VIANNA CUADRA, CNPTIA; ARYEVERTON FORTES DE OLIVEIRA, CNPTIA.
Date Issued:	2025
Citation:	In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 23., 2025, Porto Alegre. Anais [...]. Campinas: Sociedade Brasileira de Agrometeorologia, 2025. p. 1957-1962.
Description:	Abstract - The aim of this study was to evaluate the impacts of updating the climate database used in the Agricultural Climate Risk Zoning (Zarc), comparing the periods 1984- 2013 and 1993-2022. The Mann-Kendall test was applied to the continuous period of 1984-2022 to assess trends in climate variables. Additionally, the impacts on agricultural climate risk were analyzed, considering events of water deficit and minimum temperatures (<5°C) in both time intervals. The results revealed increases in average temperatures, higher evapotranspiration rates, and reductions in precipitation, particularly in the Southeast and Central-West regions, where an increased risk of water deficit and a longer dry season in Central Brazil were observed. In contrast, in the South, a reduction in the risk associated with extremely low temperatures was noted. These changes directly affect planting windows and intensify agricultural climate risks, especially in regions that are more prone to water deficits. The study highlights the importance of continuously updating the climate baselines used in Zarc, enabling more accurate risk assessments and supporting strategic decisionmaking in agricultural planning.
NAL Thesaurus:	Risk assessment
Keywords:	Tendência climática Janela de plantio Avaliação de riscos Zoneamento Agrícola de Risco Climático Zarc Climate trend Planting window
ISBN:	978-65-85111-36-2
Notes:	CBAgro 2025.
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CNPTIA)