Reference : Cône de pollution à Lubumbashi: mise en évidence à partir de la structure spatiale de...
Diverses speeches and writings : Speech
Social & behavioral sciences, psychology : Social, industrial & organizational psychology
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/132337
Cône de pollution à Lubumbashi: mise en évidence à partir de la structure spatiale de la végétation et de la perception paysagère
French
Vranken, Isabelle mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Biodiversité et Paysage >]
15-Nov-2012
41
National
Cours de techniques d'analyse et de modélisation du paysage (PAYS0008-1)
Université de Liège Gembloux Agro Bio tech
Jan Bogaert
Gembloux
Belgique
[fr] dépôts atmosphériques ; contamination des sols ; métaux non ferreux
[en] indices de structure spatiale ; fragmentation ; perception ; Kevin Lynch
[en] In the south-eastern part of the Katanga Province (Democratic Republic of the Congo), high concentrations of copper and cobalt are found in the soils of the well-known ¿Copper Belt¿. Due to the dominant south-eastern winds, the metallurgic industry in Lubumbashi has been the source of a spatially concentrated atmospheric deposits of non-ferrous metal particles and associated substances in a cone-shaped zone, situated north-west of the metal processing site. The existence of this zone has been evidenced using two different techniques: firstly, by means of landscape metric comparisons of the vegetation and bare soil patterns in two study areas, one inside the pollution cone and one outside; secondly, by means of the theory on city perception developed by Kevin Lynch. Higher fragmentation and lower vegetation presence were observed inside the pollution cone, reflecting the negative impact of atmospheric deposits. Those differences were higher for sites closer to the emission source. Lynch¿s approach outlined the negative impact of diverse industrial plants on the perception by the local population. Six pollution districts and several contaminated paths, limits, nodes and polluting landmarks were identified. Citizens even recognize them as part of the collective image of the city.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Structure spatiale et impact écologique des processus d'anthropisation des paysages d'Afrique tropicale: développement d'une instrumentation générique d'analyse
Students
http://hdl.handle.net/2268/132337
Séminaire présenté dans le cadre du cours à des étudiants de foresterie. durée de la présentation: 50 min, suivie d'une séance de questions et réponses.

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