Navegando por Assunto "Regionalização"

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Acesso aberto (Open Access)
Contribuição à Regionalização de Vazão Mínima de Referência na Amazônia Legal
(Universidade Federal do Pará, 2016-10-25) BARROS, Calina Grazielli Dias; PESSOA, Francisco Carlos Lira; http://lattes.cnpq.br/8031687016215046; BLANCO, Claudio José Cavalcante; http://lattes.cnpq.br/8319326553139808
Studies aimed at knowledge flows in ungauged sites, are of great importance in hydrology, because almost always the hydrometric network does not cover all areas of interest. Therefore, it is necessary to use techniques that allow the transfer of local information monitored for ungauged sites. In this context, this paper proposes mathematical models to determine the remaining flow in the Amazon, using the regionalization method of flow. The methodology was based on the minimum flow Q95% obtained from the flow duration curve plotted based on the Weibull equation, in addition to morphoclimatic characteristics of river basins, such as the drainage area (A), average annual precipitation (P) and the river length (L). The data used for regionalization belong to six hydrologically homogeneous groups analyzed in the study. With this information, and in order to define which explanatory variables (A, P and L) would be part of the models to be applied, the multi-colinearity test was performed. Thus, taking the result of the previous test, the mathematical models of regionalization of the minimum reference flow Q95% were constructed through multiple regression models (linear, potential, exponential and logarithmic).In the first analysis, the performance values (mean absolute percentage errors, determination coefficients, adjusted coefficient of determination) were unsatisfactory. For this reason, it was chosen to divide the hydrologically homogeneous groups according to the interval with the same order of magnitude of areas and flows. In this way, the results obtained in the adjustment of the models presented a better performance, which can be verified by the average absolute error below 13.78% in all groups. The models that obtained the best performance were selected for the validation, observing in this way, that the linear model was the one that presented the best results for nine of the groups and subgroups tested, standing out also the potential and logarithmic models, that simulated six of the subgroups each.Thus, from the regional equations that presented good results, both in the adjustment and in the validation, we can obtain the flow rate Q95%, in a basin without flow data according to the homogeneous regions or groups determined in the study, having as data of The physical and climatic characteristics of this basin.
Acesso aberto (Open Access)
Pensando a Modernização do Território e a Urbanização Difusa na Amazônia
(Universidade Federal do Pará, 2015-12) TRINDADE JÚNIOR, Saint-Clair Cordeiro da
The paper analyzes territorial modernization and the importance of the urban phenomenon for recent changes in the Amazon Region. Using the notions of “forest towns” and “towns in the forest”, this paper intends to understand diffuse urbanization, which is in progress, in a regional context. With this focus, it considers examples of urban forms and attributes regarding provisions for external economic demands. Finally, it is suggested that consideration be given to the idea of “towns for the forest” as a possible basis for the formulation of territorial policies for the Amazon, where environmental attributes and cultural practices reflect important elements of the regional peculiarity.
Acesso aberto (Open Access)
Região, regionalização e rede política: um estudo sobre a atuação da Associação dos Municípios do Araguaia-Tocantins (AMAT)
(Universidade Federal do Pará, 2006-12-01) RODRIGUES, Marcos Mascarenhas Barbosa; SILVA, João Márcio Palheta da; http://lattes.cnpq.br/5356047514671129
The discussion on region intends to let subsidies to understand the territorial dynamics ones in Brazil and his implications at regional level having like his principal agent of a new proposal of regionalization for the Para to Association of the Municipal districts of the Araguaia-Tocantins (AMAT). Whose implication turns in the new forms of conceiving the region and sweats form of practice methodological, the regionalization, being used in this work while instrument for confirmed that hypothesis. Having how problematic: In which measure is it possible to bring into effect a regionalization of the state of the Para, from the arrangements partner-politician with which they are established representative, from the actions of the AMAT? What took the political net constituted by the AMAT in the south-east of the Para to be differentiated and to consolidate in the form to have distinction in the State? Does the establishment of the political nets have the capacity of incorporating the territorial dimension in the execution of his strategies to think and to manage a regional project near the informing local authorities, consequently improving the municipal acting? Having like central hypothesis, that the process of concentration of the political net in the south-east of the Para is responsible it shears insurgence of process of new sub-regionalization like that we see with the proposal of creation of a new state, with the dismemberment of the big-region of the south-east from Para. The methodology way by it through the historical reconstitution of the territorial transformations, with sights to understand the new regionalization, from a vision of totality of which our cutting out makes part and suffers criticism, using interviews, secondary inquiry and bibliographical study.
Acesso aberto (Open Access)
Região, território e planejamento estatal: planejamento plurianual e desenvolvimento regional
(Universidade Federal do Pará, 2010-08-01) CHAGAS, Clay Anderson Nunes; MONTEIRO, Maurílio de Abreu; http://lattes.cnpq.br/8077335023133373
This work analyzes the discussion about the territorial dimension in the state planning. This discussion is not recent. It emerges in the worldwide scenario due to issues relating to a set of factors imposed by the flexible and globalizing process of accumulation, which aims at producing homogeneous spaces. At that moment, the State role as a promoter of development was redefined, changing its power relation in the space production, establishing therefore a power correlation with society. However, the recent plan issued in Brazil involves the resolution of crucial topics, directly linked to State intervention strategies, based on a territorial logic that has the region as its starting point. Within this framework, it is necessary to discuss the concept of region and territory inside the territorial/regional planning dynamics. The thesis presented in this work demonstrates that even with the strong efforts for the creation of PPAs, and the subsequent connecting programs, particularly when a "modern" public planning method is introduced with the territory concept and other instruments of execution and evaluation, the analysis of the program-budget shows that they follow another regional logic of resources allocation, abiding by the Federal Constitution provisions regarding final programs and the support of public policies and special areas. Therefore, the budget follows a regional dynamics while the plans and programs follow a territorial dynamics. The budget-program establishes resources allocation according to the IBGE regional division – dividing Brazil in five regions. The studies of Territorial Dimension for Planning, that guide the PPAs, particularly those of 2008 - 2011, try to establish development programs based on the creation of a number of territories. This raises a serious issue in the Brazilian public planning dynamics, which is the disjuncture between Plan – Budget – Program, denying their concept of integration.
Acesso aberto (Open Access)
Regionalização e estimativa de chuvas do estado do Pará
(Universidade Federal do Pará, 2014-04-25) GONÇALVES, Mariane Furtado; BLANCO, Claudio José Cavalcante; http://lattes.cnpq.br/8319326553139808
In Amazon region, a factor which prevents the most comprehensive knowledge of water resources is the lack of hydrological data (flow and precipitation) of small and medium-sized watersheds. This is mainly due to size of the region, which increases the costs of implementation and operation of the network. In this context, this work aims to develop a model of regionalization and estimated rainfall for the state Pará For this, we applied a methodology for delineation of homogeneous regions of precipitation through the cluster analysis was then determined probability of rain for some point rainfall homogeneous region obtained with the cluster analysis by applying probability functions, and finally was given estimates of rainfall heights, using multiple. For every step we used annual and monthly averages precipitation of a time series of 31 years (period 1960-1990), obtained at the Center for Climatic Research, Department of Geography, University of Delaware, Newark site, DE, USA. Among the analyzed years, years were selected with the occurrence of El Niño and La Niña. Using the agglomerative hierarchical Ward method, having as similarity measure the Euclidean distance for annual and monthly rainfall averages six homogeneous regions of precipitation were found, except for monthly averages for rainfall series with the occurrence of El Niño and La Niña, who has four and five homogeneous regions, respectively. After the definition of homogeneous regions, probability models (Normal, Gumbel and Exponential) were fitted to determine the heights of the three sequences of rainfall time series, applied the chi-square test for this check. After the calibration step to annual rainfall, it was found that the model is best fit normal distribution the probability of exceedance observed, since average monthly precipitation for the Gumbel distribution model got better grip frequencies of exceedance. The above models were validated using the rainfall series of 12 stations of the Agência Nacional de Água (ANA), considered as target stations. At this stage, it was observed that to mean annual rainfall occurred adherence of the data to all the rainfall stations targeted because they presented the results of applying the chi-square test less than 3.84 (for normal distribution functions). And it was also found that for average monthly rainfall, there was adherence of the data to all the rainfall stations target. To simulate rainfall heights were tested for calibration models of power, according to Power and Linear model by means of multiple regression. As a criterion of performance models, the percentage relative error was used. For time series containing series every year and with the occurrence of La Niña, the model showed a lower relative. As for series with the occurrence of El Niño, the model of power had minor errors. As for the probabilistic models, the calibration results of the multiple regression models were validated with the use of rainfall stations of the ANA. In the validation step for series containing every year the percentage errors ranging from 0.2 to 39.2%, as when used in El Niño years there has been an increase in error ranging from 1.9 to 54.8%, and La Niña years from 8.5 to 55.9%. Although some estimates have had considerable errors, above 50%. The results of applying this methodology are important for a better understanding of rainfall in the state of Pará and the Amazon, and can serve as a tool for better planning and management of water resources in the region.
Acesso aberto (Open Access)
Regionalização e gestão no espaço turístico: o processo de roteirização e de gestão participativa do Pólo Marajó, Pará
(Universidade Federal do Pará, 2007) ESPÍRITO SANTO, Álvaro Negrão do; TAVARES, Maria Goretti da Costa; http://lattes.cnpq.br/7796891525258446
The present work analyses on the contexto f the regionalization and organization of the touristic space, two procedures included ont the Regionalization Program of Tourism (PRT), the routering and shared organization focusing like locus of research is the Marajo Pole. The text search to put on view the theorical fundaments os the turistic space, beginning from the thinking of BOULLÓN (1985), associating this view with the counted formations on the poles theory (PERROUX, 1967), on aménagement du territoire (ANDRADE, 1971,1987), on the innovation theory (PORTER, 1998) and in local desenvolviment (Almeida, 2002, Barqueiro, 2001, Buarque, 2002, Rodrigues, 1977). Analyzing the recent national public politics, the National Program of Municipalization of Turism (PNMT), the PRT, besides of the Developing Touristic Plan of the State of Pará, identifying the orientation of these tecnitics documents with the developing process of tourism. To reach the proposal objectives were formulated questions oriented from the analyze of the study object, considering the Routering and Shared Manegement. On the sequence, one level of the research was done, a book research and on documents that made the construction of the references’ theories. Complementing, realized the camping research with interviews, observations, informations validated on the study area. The result of this process that was systematized, starting from the required informations on the Document’s research and Camp Research. Studied these informations, they were organized as analytic text, with maps, photo, statistical pictures and.tables. Considering the two main objectives (anlyze ot the Routering and the Shared Management of Marajo Pole) was seen that the work of the routering of Vila do Pesqueiro concentrated basically in two of the four components (turistic plant and infrastructure) that didn’t receive the adequate attention. These facts, conjugated to externs facts to the universe from the local community, as the transportation question to Marajo, and the acting of the receptive agents of Belém – that has great influence on the routering commercialization – difficulting the sell process of the product. With the Shared Management, was seen that were instituted two management committees, one in Soure, other in Salvaterra, separated from the constitution process of the Regional Forum of Turism of the Marajo Pole. Besides this, the structure of the Forum didn’t obey the equality means, in terms of the representation of the actors, and the conception of the regional govern of tourism occurred after a routering process from the Amazonia of Marajo. These elements points that they didn’t practice, really as one Shared Management of the Marajo Pole.
Acesso aberto (Open Access)
O zoneamento ambiental por redes neurais artificiais (som) como instrumento de ordenamento territorial na região nordeste do estado do Pará
(Universidade Federal do Pará, 2015) SADECK, Luis Waldyr Rodrigues; ADAMI, Marcos; http://lattes.cnpq.br/7484071887086439; LIMA, Aline Maria Meiguins de; http://lattes.cnpq.br/6572852379381594
Land use planning studies represents, in general, the use of a large amount of information which leads into rather complex interpretation process similarly to the understand of the involved socioeconomic and environmental systems, as a result the decision-making process becomes slower, demanding spatial (scale) and temporal (period) adjustments. The use of inappropriate methods or insufficient data generates fragile instruments that should act as decision support systems. In this scenario, this work aims to contribute to develop a methodology for land use planning processes along the lines of the Ecological-Economic Zoning (EEZ) through Artificial Neural Networks (ANN) - Self Organizing Map (SOM) to subsidize a regionalization process and support land use planning in a more dynamic and faster manner, based upon data collection procedures (socioeconomic and environmental), data adjustment, network implementation and finally interpretation leading into the regional planning synthesis map. These steps allows parameterization and selection of the network that gives the better results accordingly to training and interpreter analysis over the generated data, taking into considerations statistical analysis such as U-matrix, component plans, per class graphs, Cluster analysis and map generation. The area was separated in the 12 units, that were grouped by similarity in 4 categories, which represent the main axes of sustainability proposed in the ZEE. the method adopted can defined distinct zones, that were not identified by ZEE, mainly due to the increased possibility offered by SOM to combine and integrate a large number of physical, social and economic variables.