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The following research analyzed the interactions between climate change and land use in the Buritirana district, a farming region located at Jalapão gateway, Tocantins state, Brazil. This relatively small area gathers high-tech soybean production developed in recent years, cattle breeding, small family farming, and none associated producers. The study focused on two groups: on the one hand farmers of the agricultural settlements Sítio and Entre Rios and on the other large soybean producers. The database was obtained by the MapBioma project and the WorldClim collection. The images retrieved were processed to plot geographic illustrations and furthermore to elaborate and interpret linear regression. Such framework intended to provide more evidences about the future perspectives of agricultural production in tropical regions. The results revealed an annual increase of average temperature in the examined region, characterized by a strong expansion of soybean monoculture, between 2013 and 2018. However, based on statistical analysis, evidence of correlating soybean expansion to climate changes in the Buritirana region could not be confirmed. Nevertheless, spread of monoculture and reduction of native flora in the Jalapão region and surroundings should be considered with concern, especially for small rural familiar farmers and for wildlife as well, even after approval of the new Brazilian Forest Code in 2008. [ABSTRACT FROM AUTHOR]

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Current analysis compares regions inserted within the economic context through the diffusion of agribusiness: the savannas of the Brazilian mid-northern region, specialized in grain production, and irrigated areas of the northeastern caatinga, predominantly with fruit trees. They are considered Agribusiness Productive Regions (APR) since there have regional hubs with enterprises and holdings for their consolidation of agricultural chains in their influence zones, limited by Immediate Geographic Region elaborated by the Instituto Brasileiro de Geografia e Estatística (IBGE). Grouping analysis identified the intensity of their similarities and differences. Results show that the Barreiras (BA) region demonstrated a higher level since it has a great number of enterprises involved in intensive grain planting. On the other hand, physical, climatic and infrastructure restrictions impair the arrival of other agribusiness agents. Results show that technology is a dominant factor since innovations affect productivity, diversification, harvest time and logistics. Companies are situated within such a context when they make available such services. Grouping of such elements makes APRs different from one another. [ABSTRACT FROM AUTHOR]