What controls the expansion of urban gullies in tropical environments? Lessons learned from contrasting cities in D.R. Congo

Mawe, Guy Ilombe; Landu, Eric Lutete; Imwangana, Fils Makanzu; Hubert, Aurélia; Dille, Antoine; Bielders, Charles L.; Poesen, Jean; Dewitte, Olivier; Vanmaercke, Matthias

doi:10.1016/j.catena.2024.108055

Cited by 2 publications

(1 citation statement)

References 40 publications

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“…Gullies are generated by natural and anthropogenic factors [ 33 ], and in urban areas they are related to inadequate land use [ 4 , 8 ]. In other cities in Brazil and around the world, gullies also occupy significant areas and are a challenge for the development of cities, due to the creation of abandoned areas [ 4 , 8 , [33] , [34] , [35] ]. Gullies can therefore be classified as a form of Brownfield, as they are generated due to inadequate soil use, making the use of land in areas that could previously be occupied unfeasible, but in the same way as occurs with other Brownfields, if the necessary interventions, these areas can be reinserted for land use.…”

Section: Discussionmentioning

confidence: 99%

Adaptation of the TIMBRE methodology for brownfields gully erosion analysis in urban areas

Kuhn,

Reis,

Santos

et al. 2024

Heliyon

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Section: Discussionmentioning

confidence: 99%

Adaptation of the TIMBRE methodology for brownfields gully erosion analysis in urban areas

Kuhn,

Reis,

Santos

et al. 2024

Heliyon

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Economic impacts of an urban gully are driven by land degradation

Kuhn,

Reis,

Furegatti

et al. 2024

Nat Hazards

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This study carries out the first evaluation of the impacts of ravines and gullies in urban areas in Brazil considering environmental damage, such as costs related to land restoration and erosion control, infrastructure destruction, economic losses and income losses related to property and urban land taxes. In this study, the city of Bauru, Brazil, has been selected as study site, where three areas were chosen due to the large impact that ravines and gullies have caused over the past two decades. Our analysis indicates that the total damage exceeds US$ 173 million and is mainly related to land degradation. The cost of replacing the eroded soil in these three areas is estimated at approximately US$ 13.3 million. Furthermore, according to our analysis, urban areas affected by ravines and gullies represent problems similar to brownfields. The assessment of the impacts and challenges associated with urban ravines and gullies can help promote accountability by those responsible for their initiation and may contribute to decreasing the development of new eroded areas.

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What controls the expansion of urban gullies in tropical environments? Lessons learned from contrasting cities in D.R. Congo

Cited by 2 publications

References 40 publications

Adaptation of the TIMBRE methodology for brownfields gully erosion analysis in urban areas

Adaptation of the TIMBRE methodology for brownfields gully erosion analysis in urban areas

Economic impacts of an urban gully are driven by land degradation

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