Avaliação de impacto de ocupações ao longo de áreas periurbanas, zonas ecológicas e várzeas em regiões pantanosas e cursos d’água selecionados no sudoeste da Nigéria

Autores

  • John Adesina University of Lagos, Department of Architecture, Yaba, Lagos, Nigeria / Nanjing Forestry University, College of Landscape Architecture, Nanjing, People’s Republic of China https://orcid.org/0000-0003-2445-7737
  • Nnezi Uduma-Olugu University of Lagos, Department of Architecture, Yaba, Lagos, Nigeria
  • Xiaolan Tang Nanjing Forestry University, College of Landscape Architecture, Nanjing, People’s Republic of China

DOI:

https://doi.org/10.22296/2317-1529.rbeur.202541

Palavras-chave:

Planejamento Regional, Infraestrutura Urbana, Urbanização, Várzea, Planejamento Paisagístico, Áreas Periurbanas, Projeto e Desenvolvimento Sustentáveis

Resumo

Cidades se caracterizam por uma alta densidade populacional, equipamentos públicos modernos e infraestrutura urbana. Considerando a taxa de crescimento urbano em torno dos subúrbios, as regiões periurbanas são aquelas localizadas fora das grandes cidades, apresentando uma combinação de características urbanas e rurais, o que significa que se trata de locais com baixa densidade populacional que priorizam o agronegócio, atividades comunitárias e paisagens preservadas. Essas comunidades localizadas em baixadas e a várzea de Lagos-Ogun, em rápido crescimento, exigem um projeto paisagístico estratégico devido aos efeitos disseminados de inundações e aos riscos relacionados a elas no sudoeste da Nigéria. Por conta de sua proximidade com o litoral de Lagos e da infraestrutura urbana que os conecta à metrópole de Lagos, esses povoamentos em ascensão necessitam do projeto físico regional e estratégico das cidades agora conhecidas como “novas cidades de Lagos”. Tais comunidades, localizadas no norte de Lagos e também conhecidas como Áreas sob Pressão de Desenvolvimento (DPAs, na sigla em inglês), enfrentam uma considerável pressão de desenvolvimento dos subúrbios próximos. O presente estudo avaliou as características atuais de algumas comunidades residenciais e agrícolas em DPAs, bem como as catástrofes relacionadas a inundações que ocorreram entre abril e novembro de 2023. O objetivo deste artigo é fornecer um arcabouço conceitual regional e um planejamento paisagístico adequado como meio de reduzir as ameaças de inundações. Os dados locais referentes à pesquisa foram analisados ​​quantitativa e qualitativamente. A área de estudo é composta de cinco Áreas de Governo Local (LGAs, na sigla em inglês) e das três zonas ecológicas reconhecidas dentro delas. Elas foram mapeadas e analisadas visando determinar a extensão, os impactos e os efeitos das inundações recorrentes. Três planejadores urbanos, um topógrafo, um estagiário de topografia, dois arquitetos paisagistas e cinco calouros do Departamento de Planejamento Urbano e Regional de diferentes universidades no sudoeste da Nigéria conduziram as avaliações no local. A análise levou em consideração os seguintes elementos urbanos: população; uso do solo; infraestrutura econômica, física e social; índices de migração urbana referentes a habitantes e agricultores; e outras características urbanas reconhecidas associadas a cidades em crescimento. A conclusão enfatizou a urgência de ações imediatas por parte de órgãos governamentais, agências e profissionais de planejamento urbano e ecológico para desenvolver soluções robustas e sustentáveis ​​que reduzam os efeitos dos danos causados ​​pela água e pelo escoamento superficial sobre a população local, as redes hidroviárias e o desenvolvimento físico de uma cidade ou região.

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Biografia do Autor

John Adesina, University of Lagos, Department of Architecture, Yaba, Lagos, Nigeria / Nanjing Forestry University, College of Landscape Architecture, Nanjing, People’s Republic of China

Adjunct lecturer, research assistant, and research fellow at the Department of Architecture, Faculty of Environmental Sciences, University of Lagos. His research is focused on the fields of architecture, landscape architecture, and urban planning/design and his research interests include biodiversity conservation, urban green infrastructure, national parks, national nature reserves, protected area management systems, and biophilia as a sustainable design framework for urban planning and development. He has attended research conferences in Nigeria and abroad, where he presented and published papers. He is an environmental enthusiast and is currently working in Nigeria and abroad as an architect, landscape architect, builder, and facilities manager. His doctoral dissertation centers on biodiversity conservation and urban green infrastructure for ecological urbanism.

Nnezi Uduma-Olugu, University of Lagos, Department of Architecture, Yaba, Lagos, Nigeria

Associate professor of Architecture at the University of Lagos. She set up her firm, Designedscapes Ltd., in 1997. Arising from the need to establish a Master’s program in Landscape Architecture (MLA, the first of its kind in sub-Saharan Africa), she joined the CAA-accredited Department of Architecture of the University of Lagos, where she, along with her colleagues, was at the forefront of establishing the acclaimed MLA program, currently working as its coordinator m. A chartered architect and landscape architect, she is a member of the Nigerian Institute of Architects (NIA) and has been vice-president of the Society of Landscape Architecture of Nigeria (SLAN). She is also a member of the American Society of Landscape Architects (ASLA) and the Association of Architectural Educators in Nigeria (AARCHES). She is widely published and was among the notable female architects featured in the book Nigerian Women of Impact: In Architecture.

Xiaolan Tang, Nanjing Forestry University, College of Landscape Architecture, Nanjing, People’s Republic of China

Professor at the College of Landscape Architecture, Nanjing Forestry University, Nanjing, Jiangsu Province, People’s Republic of China. Her research topics mainly include biodiversity conservation and the conservation of national parks and protected areas. She has published many articles in relevant scientific journals and has presented papers at numerous academic conferences in China and abroad.

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Publicado

02-07-2025

Como Citar

Adesina, J., Uduma-Olugu, N., & Tang, X. (2025). Avaliação de impacto de ocupações ao longo de áreas periurbanas, zonas ecológicas e várzeas em regiões pantanosas e cursos d’água selecionados no sudoeste da Nigéria. Revista Brasileira De Estudos Urbanos E Regionais, 27(1). https://doi.org/10.22296/2317-1529.rbeur.202541

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v. 27 n. 1 (2025): Janeiro-Dezembro

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Artigos

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