Land use changes after the period commodities rising price in the Rio Grande do Sul State, Brazil

Abstract

At the end of the 20th and early 21st century, agricultural systems incorporated definitively a new mission: to generate goods for a world population that continues to grow and whose way of life demand food with low environmental impact. Soybean is the main raw material for the production of biodiesel in Brazil, accountably responsible for 82.4% of the total produced between 2006 and 2013. The Brazilian state of Rio Grande do Sul (RS), which is formed by the Pampa and the Atlantic forest biomes, was responsible for 35.7% of the country's biodiesel production in the referred period. The aim of this paper was to verify the impact of the increased area of soybean cultivation in land use in Rio Grande do Sul State, in the period between 1990 and 2015, considering separately its two biomes (Pampa and Atlantic Forest) original areas, using both census dataset and satellite images. We used the period from 1990 to 2000 as before commodity rising price (BCRP) and the period from 2000 to 2013 as commodity rising price (CRP). The 505,162 ha from Atlantic Forest biome and 1,192,115ha from Pampa biome were added to soybean production in the CRP period. In the Atlantic Forest, this enlargement occurred in the border of the main production area, while in Pampa biome conversion of natural grassland to crop land was the main reason for the large increment in the cultivated area.

Efeito das Atividades Antrópicas na Geoquímica do Solo em Topossequências do Planalto do Rio Grande do Sul, Brasil (Effect of Anthropic Activities on Soil Geochemistry in Toposequences of the Rio Grande do Sul Plateau, Brazil )

“…Conforme Conceição (1984), a expansão do cultivo da soja no RS ocorreu entre 1950 e 1975, concentrando-se principalmente nas regiões Norte e Oeste, predominantemente no bioma Mata Atlântica. Em 2003, a soja também se tornou a principal cultura comercial do Bioma Pampa (Silveira et al, 2017), através da conversão dos campos naturais historicamente utilizados para pecuária extensiva, em agricultura (Kuplich et al, 2018). Como efeito indireto do aumento do uso da terra para o cultivo comercial durante o verão, a área cultivada do Pampa também aumentou no inverno, sendo o trigo a principal cultura plantada (Silveira et al, 2017).…”

“…Em 2003, a soja também se tornou a principal cultura comercial do Bioma Pampa (Silveira et al, 2017), através da conversão dos campos naturais historicamente utilizados para pecuária extensiva, em agricultura (Kuplich et al, 2018). Como efeito indireto do aumento do uso da terra para o cultivo comercial durante o verão, a área cultivada do Pampa também aumentou no inverno, sendo o trigo a principal cultura plantada (Silveira et al, 2017). Na BH80, as áreas agrícolas são utilizadas predominantemente para o cultivo da soja no verão, perfazendo 64% da área da BH em 2016 (Capoane et al, 2016a).…”

Energy Landscapes and Environmentality: Boundaries between Discourses and Practices in Energy Governance

“…Since then, a fierce competition started amongst large companies, due to the international increase in soybean prices and the increased profitability of bran and grain trade. That was a powerful race that boosted the land change use linked to the expansion of soy plantations, in an opposite direction of an environmentally friendly biofuel [37].…”

Association between Agricultural Production Value and the Use of Rural Area within the Municipalities in the State of São Paulo, Brazil

“…The main area indicator is the temporary area variable (32.3% of the state), i.e., higher values of v 1 occur in municipalities with larger areas of temporary crops. Researches on farmers' decision-making [19] attempt to explore which variables lead farmers to innovate, to choose crop or breed. Yet, land use is still an acceptable indicator for the outcome of such decisions.…”