Spatial expansion of irrigated soybean in Matopiba, Brazil: 2006 and 2019
DOI:
https://doi.org/10.24302/drd.v16.6154Abstract
Matopiba has consolidated as Brazil's main agricultural frontier, but studies on the role of irrigation in the spatial dynamics of soybeans are scarce. The regional economics literature highlights that processes of productive concentration and diffusion are central to understanding this dynamics. Given this gap, two questions were asked: (i) to what extent did irrigation influence the concentration or dispersion of soybeans? (ii) how did these patterns evolve between 2006 and 2019? The objective is to analyze the spatial patterns of irrigated soybeans in Matopiba during those years. The Global and Local Moran Index with Ward's hierarchical clustering were used in the analysis. Results show positive spatial autocorrelation in both years, though less intense in 2019, suggesting the beginning of deconcentration. High-high clusters persist in Luís Eduardo Magalhães, Correntina, and Barreiras, while Riachão das Neves gains prominence. It is concluded that, despite the persistence of traditional nuclei, irrigation diffusion is observed, revealing regional structural changes.
Keywords: Matopiba region; irrigated agriculture; irrigated soybean; spatial autocorrelation.
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