Changes in secondary vegetation dynamics in a context of decreasing deforestation rates in Pará, Brazilian Amazon

2019 ◽  
Vol 106 ◽  
pp. 40-49 ◽  
Author(s):  
Raquel Carvalho ◽  
Marcos Adami ◽  
Silvana Amaral ◽  
Francisco Gilney Bezerra ◽  
Ana Paula Dutra de Aguiar
2020 ◽  
Vol 15 (3) ◽  
pp. 034057 ◽  
Author(s):  
Sâmia Nunes ◽  
Luis Oliveira ◽  
João Siqueira ◽  
Douglas C Morton ◽  
Carlos M Souza

2020 ◽  
Vol 20 (1) ◽  
pp. 16
Author(s):  
Vanessa Boanada Fuchs

Chinese demand for the world’s commodities has the capacity to shape agricultural frontiers in many parts of the world, including the Amazon. This article is a preliminary report on findings concerning the expansion of the agricultural frontier in the Brazilian Amazon driven by increases in soybean production, extension of cropped area, cross-referenced with satellite data on deforestation rates at the smallest possible scale: the municipal level. The study identifies 21 municipalities forming fours axes of frontier expansion in the Amazon, where soycrops may be the cause for displacement deforestation, as it is the case of cattle ranching. Despite the Soy Moratorium, frontiers in the Amazon keep shifting. The article advocates that further research in those four axes is needed to better understand the relationship between those two industries in terms of land use as well as the socio-environmental on the ground impacts. Furthermore, the connections between those areas with present and future infrastructure development in the Amazon, many counting with direct Chinese investment, will be key to the expansion of the soy value chain, bypassing the initial goal of zero-deforestation.***Expansão de fronteira impulsionada pela China na Amazônia: quatro eixos de pressão causados pela crescente demanda pelo comércio de soja***A demanda chinesa por commodities tem capacidade para moldar fronteiras agrícolas em muitas partes do mundo, incluindo a Amazônia. Este artigo é um relatório preliminar sobre a expansão da fronteira agrícola na Amazônia brasileira, impulsionada por aumentos na produção de soja, extensão da área cultivada, cruzadas com dados de satélite sobre as taxas de desmatamento na menor escala possível: o nível municipal. O estudo identifica 21 municípios formando quatro eixos de expansão de fronteira na Amazônia, onde a lavoura de soja pode ser a causa do desmatamento indireto por deslocamento de outras atividades, como é o caso da pecuária. Apesar da Moratória da Soja, as fronteiras na Amazônia continuam mudando. O artigo defende que mais pesquisas nesses quatro eixos são necessárias para entender melhor a relação entre essas duas indústrias em termos de uso da terra, bem como os impactos socioambientais in loco. Além disso, é fundamental traçar as conexões entre esses eixos com o desenvolvimento presente e futuro de obras de infraestrutura na Amazônia, muitas delas com investimento direto chinês, para antever a expansão da cadeia de valor da soja, que pode estar ignorando de fato a intenção inicial de uma cadeia de valor de desmatamento zero.Palavras-chave: Amazônia. Fronteiras agrícolas. Desmatamento. Soja. Demandachinesa.


2013 ◽  
pp. 1-4 ◽  
Author(s):  
Plinio Sist ◽  
Lucas Mazzei ◽  
Philippe Sablayrolles

1997 ◽  
Vol 3 (5) ◽  
pp. 451-461 ◽  
Author(s):  
DIÓGENES ALVES ◽  
JOÃO VIANEI SOARES ◽  
SILVANA AMARAL ◽  
ELIANA MELLO ◽  
SÉRGIO ALMEIDA ◽  
...  

2021 ◽  
Vol 9 ◽  
Author(s):  
Claudia T. Codeço ◽  
Ana P. Dal'Asta ◽  
Ana C. Rorato ◽  
Raquel M. Lana ◽  
Tatiana C. Neves ◽  
...  

The Amazon biome is under severe threat due to increasing deforestation rates and loss of biodiversity and ecosystem services while sustaining a high burden of neglected tropical diseases. Approximately two thirds of this biome are located within Brazilian territory. There, socio-economic and environmental landscape transformations are linked to the regional agrarian economy dynamics, which has developed into six techno-productive trajectories (TTs). These TTs are the product of the historical interaction between Peasant and Farmer and Rancher practices, technologies and rationalities. This article investigates the distribution of the dominant Brazilian Amazon TTs and their association with environmental degradation and vulnerability to neglected tropical diseases. The goal is to provide a framework for the joint debate of the local economic, environmental and health dimensions. We calculated the dominant TT for each municipality in 2017. Peasant trajectories (TT1, TT2, and TT3) are dominant in ca. fifty percent of the Amazon territory, mostly concentrated in areas covered by continuous forest where malaria is an important morbidity and mortality cause. Cattle raising trajectories are associated with higher deforestation rates. Meanwhile, Farmer and Rancher economies are becoming dominant trajectories, comprising large scale cattle and grain production. These trajectories are associated with rapid biodiversity loss and a high prevalence of neglected tropical diseases, such as leishmaniasis, Aedes-borne diseases and Chagas disease. Overall, these results defy simplistic views that the dominant development trajectory for the Amazon will optimize economic, health and environmental indicators. This approach lays the groundwork for a more integrated narrative consistent with the economic history of the Brazilian Amazon.


Phytotaxa ◽  
2015 ◽  
Vol 208 (2) ◽  
pp. 170 ◽  
Author(s):  
Ana Kelly Koch ◽  
André Luiz De Rezende Cardoso ◽  
Anna Luiza Ilkiu-Borges

Passiflora echinasteris from a secondary vegetation area on the Great Curve of the Xingu River, in the Brazilian Amazon, is newly described. It belongs to the series Serratifoliae with three other Brazilian species. The new species is illustrated and its affinities with related species are discussed, and a key to the Brazilian species of the series is provided.


AMBIO ◽  
2011 ◽  
Vol 41 (3) ◽  
pp. 309-314 ◽  
Author(s):  
J. P. Malingreau ◽  
H. D. Eva ◽  
E. E. de Miranda

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