Produção Nacional
CLIMATOLOGIA E GESTÃO DO ESPAÇO URBANO: o caso de uma cidade pequena (climatology and urban management - a small city case)
2010; UNIVERSIDADE FEDERAL DO CEARÁ; Volume: 9; Issue: 1 Linguagem: Português
10.4215/rm.v9i1.533
ISSN1984-2201
Autores Tópico(s)Geography and Environmental Studies
Resumopequeno porte. Realiza-se estudo aplicado na Bacia do Arroio Castelhano com enfase na cidade de Venâncio Aires, RS. O objetivo principal foi decifrar a dinâmica natural e a dinâmica social na materialidade deste espaco para o entendimento do problema socioambiental manifesto nas inundacoes. As referencias teoricas para o trabalho foram buscadas em Monteiro (1976), Mendonca (2004) e Pigeon (2005). Eventos pluviais intensos na area se relacionam a condicoes frontais especiais e aos complexos convectivos de mesoescala. Estabeleceu-se que, para compreender as inundacoes e seus impactos numa cidade, alem de avaliar fatores como localizacao, mudancas nas condicoes ecologicas associadas as caracteristicas demograficas do ambiente construido, era preciso investigar a historia de sua producao, o modelo de desenvolvimento urbano e os padroes internos de diferenciacao social na cidade. Do ponto de vista da gestao urbana, constatou-se um tratamento diferenciado quanto a regulamentacao urbanistica para areas de risco a inundacoes, na comparacao com desigualdade socioambiental constatada. Palavras-chaves : Eventos pluviais intensos, inundacao, gestao urbana.. ABSTRACT T he aim of this study is to understand how factors related to natural and social dynamics contribute to the construction of risk to intense rainfall events in a small city. The applied study was carried out in the Basin of the Castelhano River with emphasis in the city of Venâncio Aires, RS. The principal objective was to decipher the natural dynamics and the dynamic social one in the materiality of this space to understand the environmental problem of floods. Intense rainfall events in the area are related to special frontal conditions and to mesoscale convective complexes. It was established that to understand the flooding and its impacts in a city, factors such location, distance, changes in ecological conditions associated with the demographic characteristics of building are not sufficient, it must investigate the history of its production, the model of urban development and the internal standards of social differentiation in the city. From the standpoint of urban management, it was found differential treatment on the regulation for flood risk areas, in comparison with the social and environmental inequality established. Key words : Intense rainfall events, flood, urban management. RESUME Le but de cette etude est de comprendre les evenements de precipitations intenses et traitement reglementaire donne aux zones urbaines en risques d’inondation dans une petite ville. L’etude appliquee est mise en œuvre dans le bassin de Arroio Castelhano en se concentrant sur la ville de Venâncio Aires, RS. L’objectif principal etait de dechiffrer la dynamique naturelle et la dynamique sociale dans ce secteur en interpretant des materialisations territoriles actuelles du risque des inondations. Episodes de pluies intenses dans le domaine se rapportent a des conditions particulieres liees aux fronts et aux complexes convectifs de meso-echelle. Il a ete etabli que pour comprendre l’inondation et ses impacts dans une ville, facteurs tels que l’emplacement et changements dans des conditions ecologiques liees a demographie ne sont pas sufissantes; il est necessaire de souligner l’importance des interactions, en comprenant l’histoire d’evollution de la ville, le modele de developpement urbain et des normes internes de differentiation sociale urbaine. On a enregistre la difference de traitement reglementaire donne aux zones urbaines en risques d’inondation, en comparaison avec les inegalites sociales trouve. Mots-Cle :Evenements pluviaux intense, inondations, gestion urbaine. DOI : 10.4215/RM2010.0901.004
Referência(s)