Natural Conditions for the Sea Salt Production in Brazil

Diniz, Marco Túlio Mendonça; Vasconcelos, Fábio Perdigão

doi:10.4215/rm2017.e16013

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…In Brazil, this scenario is accentuated by the fact that salt flat is not considered to be a part of the mangrove ecosystem, and is thus not legally protected as an APP. This has led to approximately 10% of the country’s salt flats being impacted for the production of salt and shrimp [38, 39]. All these activities impact the mangrove.…”

Section: Introductionmentioning

confidence: 99%

The effect of anthropogenic drivers on spatial patterns of mangrove land use on the Amazon coast

et al. 2019

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Mangroves play an essential ecological role in the maintenance of the coastal zone and are extremely important for the socioeconomics of coastal communities. However, mangrove ecosystems are impacted by a range of anthropogenic pressures, and the loss of this habitat can be attributed primarily to the human occupation of the coastal zone. In the present study, we analyzed the spatial patterns of land use in the mangrove of the Brazilian Amazon coast, and evaluated the anthropogenic drivers of this impact, using a remote sensing approach. We mapped the road network using RapidEye images, and human settlements using global data. The results of these analyses indicate that the Brazilian Amazon coast has a low population density and low rates of anthropogenic impact in most of the coastal microregions investigated, factors that contribute to the maintenance and conservation of the region’s mangrove. The study also revealed that the paved road network is one of the principal drivers of land use in the mangrove, whereas other factors, such as population density, urban centers, and the number of settlements are much less important. While the region has 2024 km of paved highways, unpaved roads (17,496 km) facilitate access to the mangrove, with approximately 90% of anthropogenic impact being recorded within a 3 km radius of these roads. While the network of paved highways is relatively reduced in extension, preventive measures are urgently required to impede any major shift in the current scenario, caused by the expansion of major development programs. The results of the study indicate that biophysical, economic, and political factors may also contribute to the reduction, stability, and development of one of the world’s largest areas of mangrove forest.

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Section: Introductionmentioning

confidence: 99%

The effect of anthropogenic drivers on spatial patterns of mangrove land use on the Amazon coast

et al. 2019

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“…The study was carried out on the north coast of Brazil, in the region known as White Coast between the coordinates 4°54'24 '' and 5°10'18'' south latitude and the meridians 37°18'08'' and 37°02'12'' west longitude. This locality comprises the estuaries of the Apodi-Mossoró, Piranhas-Açú and Galinhos Guamaré rivers, which together produce more than 95% of Brazilian salt (DINIZ & VASCONCELOS, 2017).…”

Section: Characterization Of the Study Areamentioning

confidence: 99%

An evaluation of the economic viability of environmental offsets in the saltworks industry

Fernandes

Pinto²,

Fernandes³

et al. 2020

Cienc. Rural

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The extraction of sea salt depends on the occupation of large areas at the estuary banks, many of them inserted in Permanent Preservation Areas (PPAs). Thus, the objective was to evaluate the economic viability of Environmental Offsets (EO) as an alternative to the unoccupied PPAs in the saltworks. In order to do so, 27 solar saltworks installed in the region of the Brazilian White Coast were evaluated for the occupation of PPAs - measured using images from satellite, georeferenced, vectored with corresponding PPA bands generated - and estimated to EO (Impact Degree x Sum of the investments necessary to implement the project) and Economic Impact (Net Present Value, with long-term interest rate of 7%) of vacating PPAs. It was considered that EO was feasible whenever the costs resulting from it were lower than the economic impact caused by the vacancy of the PPAs. The PPAs were tthe productive area of the saltworksthat occupied 13.70% of PPAs. For all the evaluated enterprises the value corresponding to EO was lower than the Economic Impact resulting from the vacancy of the PPAs. Thus, EO is an economically viable and more attractive alternative to the eviction of PPAs by the saltworks industry and may also provide environmental gains due to the financing of conservation units in the areas of influence of the enterprises. However, there is a need to improve the methodology used to estimate the EO, since a maximum limit is set, the environmental impacts caused by the projects are underestimated.

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Natural Conditions for the Sea Salt Production in Brazil

Cited by 2 publications

References 2 publications

The effect of anthropogenic drivers on spatial patterns of mangrove land use on the Amazon coast

The effect of anthropogenic drivers on spatial patterns of mangrove land use on the Amazon coast

An evaluation of the economic viability of environmental offsets in the saltworks industry

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