Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DATA : 27/07/2018
HORA: 09:30
LOCAL: Miniauditório do PPGAU/UFRN

The city meets the river: Characteristics of the occupation and conflicts of land use in the Pitimbu River Basin, in the Metropolitan Region of Natal.


Land use and occupation. Hydrographic basins. Urban rivers. Territorial planning.

GRANDE ÁREA: Ciências Sociais Aplicadas
ÁREA: Arquitetura e Urbanismo

Rivers are important structural elements of the urban fabric, but they also suffer greatly in this process. Urbanization poses serious threats to its own springs, creating a conflictive relationship where, while the city essentially needs water to survive, it pollutes, channels and waterproofs its rivers and floodplains, deforests riparian zones and destroys possibilities of reinfiltration of the water in the soil. The process of recharge of the water sources can not keep up with the continuous increase in the demand for water in the cities, causing systematic lowering in the reservoirs and, consequently, scarcity. The Metropolitan Region of Natal, on the other hand, presents an ambiguous relationship with its rivers, placing them as important sources of supply and development while, on the other hand, it leaves them to suffer with an occupation process incompatible with the support of urban infrastructure existing and with the environmental characteristics of the territory, receiving waste from industrial and agricultural activities and numerous clandestine sewage connections throughout their courses. The Pitimbu River shows itself to the city of Natal already in the middle of century XX, when its growth in the south direction reaches then this new natural barrier. What happens, then, when the city meets this Rio? With rural characteristics and slow growth, the advance of urbanization in the region took hold from the 1970s. The Pitimbu River cuts along its course parcels of territory of the municipalities of Natal, Parnamirim and Macaíba, members of the Metropolitan Region of Natal (NMR); and its microbasin, which is part of the Pirangi River basin, is an important recharge area for one of the main sources of drinking water for NMR - however, the phenomenon of urban occupation jeopardizes the development of Rio's environmental functions, with deforestation, erosion, pollution and silting evident at various points along its course, as well as the pressure of the real estate market and informal occupation in the area. At this point, we must ask: how do the characteristics of occupation and urban development interfere with the capacity of recharge of its sources? Is it possible to reconcile the process of urban development with the preservation of water bodies and springs, or rivers with their banks and forests? Considering, on the one hand, the hydrographic basin as a basic unit of territorial planning (given its capacity for integration between the natural, socioeconomic and cultural aspects of the territory); and on the other hand the set of public policies and urban planning instruments currently in existence, this study aims to analyze the urban development process from the perspective of the water cycle, from the observation of the relationship between the configuration of the occupation of the territory and the biophysical characteristics of the environment. Thus, it is sought to contemplate the urban site as a whole, including the natural aspects and its articulation with human action, and for this reason the integrated analysis of the territory is possible thanks to the spatial analysis of the phenomenon analyzed and the integration of the data by thematic mapping. The aim of this study is to provide subsidies for the territorial planning of the region, serving as the basis and orientation for the formulation of public policies appropriate to the capacity to support the environment and the installed or planned infrastructure conditions; bearing in mind an occupation based on urban-environmental criteria that seek to reconcile the growth and development needs of the cities with the preservation of their water supplies and the maintenance of the ecological balance.

Externo à Instituição - Cristina Pereira de Araújo - UFPE
Presidente - 1149528 - MARCIO MORAES VALENCA
Notícia cadastrada em: 05/07/2018 14:33
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