Year 2025, Volume 10, Issue 1

Year : 2025
Volume : 10
Issue : 1
   
Authors : Jose de Jesus Sousa LEMOS, Filomena Nádia Rodrigues BEZERRA
Title : CLIMATE RESILIENTE AGRICULTURE IN THE SEMI-ARID REGION OF CEARÁ STATE, BRAZIL
Abstract : This study aims to evaluate climate resilient agriculture (CRA) in the semi-arid zone cultivated as rainfed food crops in Ceará State of Brazil. The research specific objectives were: a) to classify the distribution of rainfall in Ceará from 1901 to 2020 into three periods: drought, normal and rainy; b) to examine the ooccurrence years of these periods between 1945-2020; c) to evaluate the behavior of rice, bean, cassava and corn production in the state in each of these periods; d) to estimate the instabilities of rainfall, as well as those associated with the defining variables of the production of the studied crops; e) to verify whether there is resilience in the production of these crops in response to the occurrence of droughts, as defined in this study. The rainfall data used were taken from NOAA (National Oceanic & Atmospheric Administration), 2022. Information on harvested areas, yields and production values per hectare of the crops studied was available from the Brazilian Institute of Geography and Statistics (IBGE) and covered the period 1945- 2020. Instabilities were estimated using the coefficients of variation (CV) of the variables. Factor analysis was used to construct the synergy index (SIN) to assess the interface between the variables used to measure crop production. The evidence found proved that the studied rainfall series were unstable and that it was possible to classify the state rainfall into drought, normal and rainy periods as suposed. In addition, the existence of self-resilience in the production of the crops studied was demonstrated.
Keywords : Rainfed food crops; Drought, Rainfall instability; Synergy; Self-resilience.
   

 

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