Navegando por Assunto "Zoneamento"

Agora exibindo 1 - 4 de 4

Acesso aberto (Open Access)
Áreas úmidas e indicadores ambientais de planície flúvio estuarina na Amazônia Oriental.
(Universidade Federal do Pará, 2020-12-18) PINTO, Álvaro José de Almeida; LIMA, Aline Maria Meiguins de; http://lattes.cnpq.br/6572852379381594; https://orcid.org/0000-0002-0594-0187
The most extensive floodplains in the world occur in the Amazon River basin. In these locations, along the largest rivers, pulses of periodic flooding produce seasonal and dynamic connectivity between the smaller channels and the adjacent wetlands. Wetlands play a vital role in water quality, in addition to providing coastal stabilization and erosion control, aquifer recharge, serve as important habitats. The present study aimed to elaborate, based on environmental indicators, the characterization and classification of an estuarine fluvial plain in a humid area, and to evaluate its degree of environmental impact using bioindicators as an analysis tool, considering a gradient of water bodies. The present study took place in the municipalities of Barcarena and Abaetetuba, having an important and significant role, economic-financial, socio-cultural and migratory and ecological-environmental for the region and for the Amazon as a whole. In the present study, it was divided into two stages, considering the hypothesis and specific objectives. The first stage of characterization and classification of the region as wetlands, and the second stage was the use of biological indicators as a way of measuring the environmental quality of the areas. The indicators used for stage I were altimetry, rainfall, hydrography and land use and coverage, and such information was processed in a GIS environment. Additionally, the Topographic Index of Wet Areas (ITU) was used, and the method of map reclassification (topography, land use and precipitation) was proposed, generating product through map algebra, then defining areas with Potential for Formation of Wet Areas (PFAU). The second stage, was carried out after the classification of PFAU’s, using macrozoobenthos as an indicator of environmental quality. Sampling in the main drainages distributed in three sectors with different potential impacts. The sectors were: i) high impact sector ii) medium impact sector iii) low impact sector. In general the region of the present study predominates low altimetric values, the pluviometric precipitation for the annual accumulated, varied from 3594 mm to 4844 mm, not being a marked difference, more than 50% of the soil is characterized as area of agriculture and fields, being directly linked to the modified environments either by the occupation of the industrial pole, or by the use of land with buildings. It was possible to delimit the areas with the potential to form wetlands, being directly linked to the topographic processes and the main drainages. The results indicated that the structure of the community of benthic macroinvertebrates in the drainages surrounding the industrial port complex, shows a loss of environmental quality, with extreme effects of a fall in abundance and diversity. More tolerant taxa (Namalycastis caetensis, Cirolana sp., Pseudosphaeroma sp., Tubificidae and Chironominae) and sensitive (hydropsychidae and Eteone sp.) Impact conditions were identified and evaluated as potential bioindicators for monitoring.
Acesso aberto (Open Access)
Gerenciamento costeiro integrado: proposta de inserção de concepções subsidiárias ao plano diretor municipal de Curuçá - Pará
(Universidade Federal do Pará, 2011-10-21) SILVA, Raimundo Reinaldo Carvalho da; ROCHA, Gilberto de Miranda; http://lattes.cnpq.br/2436176783315749
The globalized capitalist logic by its nature clearly predator, acting in a global context characterized by global imbalance of many natural ecosystems, this scenario tends to accelerate the progressive deterioration of the environment, of course it is included the humans, affecting in particular ecosystems that are characterized mainly by its weakness, as the coastal ecosystems. The consensus of the sectors concerned about the sustainability of the planet is formalized in the sense that one must overcome the challenge of identifying the carrying capacity of coastal areas, using among other Geoenvironmental management tool and the natural resources, in order to the compatibility among use, harmonizing them with natural vocation of the ecosystems, also in searching of the use of the land. In this context, it means that solving the problems of the coastal municipalities should incorporate a proposal for integrated a coastal zone management in order to solve major problems coastal: erosion, soil and aquatic environments contamination and inordinate use of coastal areas but above all, to respond to those proposals of the implementation of a major infrastructure has been a constant at the current stage of evolution of the capitalist system, often to the detriment of the aspirations of local communities. Based on the central concept of Integrated Coastal Management, GCI, namely, Integrated Coastal Zones Management - ICZM ,it seeks to clarify the content of the proposed of the integrated coastal management, as well as analyze how the inclusion of these concepts in municipal master plans, particularly in the case of the municipality of Curuçá; may contribute to a diagnosis and planning concrete of the coastal zone, taking into account the decision-marking in public policy, in particular those relating to spatial municipal territory, thus achiving the aspirations of local communities. It can be argued, therefore, having been completed in order to generate benefits, in viewing, the future revision of the Master Plan of Curuçá, and thus contribute to the implementation of public policy instruments through a contribution to reflect on the implementation of a design management in the case, the Integrated Coastal Zone Management (ICZM), thus maximizing the use of a key tool in municipal planning, the Master Plan - PDM, that it is deemed necessary in ultimately excel in its execution by the primary application of the procedure for optimizing the social capital, that is, the actual realization of society participation in all phases of the planning and management of coastal areas.
Acesso aberto (Open Access)
Zoneamento geoambiental a partir das unidades de conservação: subsídios para a gestão integrada da zona costeira paraense - Brasil
(Universidade Federal de Pernambuco, 2020) ABREU, Walber Lopes de; ROCHA, Gilberto de Miranda; FLORES, Maria do Socorro Almeida; RIBEIRO, Érika Renata Farias; TAMASAUSKAS, Carlos Eduardo Pereira; GASS, Sidnei Luís Bohn
Studies and the legal framework on the coastal zone in Brazil point to the need to develop the territorial planning of their occupation and ordering through the Economic-Ecological Zoning (ZEE) with a view to promoting the integrated management of natural resources with their preservation and conservation. In the Brazilian Amazon, the Protected Areas or Conservation Units (UC) are known as instruments of environmental management and were established for the purpose of conserving and preserving both inland and coastal environmental resources. In the Paraense Coastal Zone (ZCPA), UCs still suffer the effects of the absence of instruments that do not allow their effectiveness in the constitution of new protected scenarios. This article aims to present a proposal for ZCPA Geoenvironmental Zoning from the UCs established as a subsidy and contribution to environmental planning, having as analysis methodology the zoning proposed from the Hierarchical Analytical Process - AHP and the DPSIR model (Força, Pressure, State, Impact, Response). The Zoning presented can be used as an environmental diagnosis for the exercise of management and use of the territory as a starting point for the implementation of a territorial planning policy for the Coastal Zone of Pará (ZCPA).
Acesso aberto (Open Access)
Zonificação ambiental do estado do Maranhão utilizando os geossistemas como categoria geográfica de análise
(Universidade Federal do Pará, 2016-08-12) MARQUES, Valter José; SZLAFSZTEIN, Cláudio Fabian; http://lattes.cnpq.br/1348005678649555
The state of Maranhão possesses 331.937 square kilometers; coated to the west by dense ombrophylous forests and to the east for cerrado and forests of babaçu, in transition for the biome caatinga. In the latitudinal dimension, are distinguished two large bays: coastal and continental, separated by a structural and step-W/NW. To this geographical diversity correspond geological, geomorphological, climatic and soil nuances, which result in different occupations and uses of geographic space. Even here, the territorial planning has supported in the political-administrative division and in actual or potential uses of the natural environment. The ambient boardings are based on the thematic striking on the ecological dimension and/or on the geomorphological compartments. In the present study, it was opted to the zonification under the systemic perspective of the geossystem-territory-landscape method, wich embraces the the biases physical, biotic and sociocultural. The discrimination of geossystems and the search for its origins had allowed to greater clarification on the connection and tectonic evolution of the Brazilian continental platform, on account of the continental drift, that separated Brazil from Africa. In the local regional/locale/, the 12 geossystems mapped behave as “crustals paving-tiles”, put into motion for forces of the internal dynamics of the Earth. The delineation of the geossystemic units is consonante with the one of the gravimetrical anomalies and the limits of the hydrographic basins. Biotic and physical themes are reflected on the geossystemic units, as the uses of land, and cultural aspects are, showing their integrated nature. Of this form, the zonification, on the basis of geossystems, makes possible the territorial management, through its ambiental, hydric, ecological and economic biases. As retrospective of the territorialities, implanted throughout the history of the Maranhão, the fact ascends of that they had as force-motor the production of substances cousins for global markets. These contingencies, associates with the non- inclusive politics involving populations on the global businesses resulted in significant social exclusion. Finally, an assay directed to the formularization of alternative scenes, under the optics of the sustainable development, advocates for new aimings marked out with buoys in complete a territorial vision, that over all prioritizes the technological quality of the human resources and innovations with respect to the energy matrix, infrastructure, verticalization of local productive chains and in the adoption of ambient politics regarding nature conservation and preservation of environmental services.