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Mining and Biodiversity: The Study Case of Ecosystem Reconstruction in Katanga (DRC)
Lebrun, Julie; Semereab, Ezana; Rensonnet, Audrey et al.
20107th SER European Conference on Ecological Restoration
 

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Keywords :
Copper-cobalt flora; Central Africa; Ecosystem reconstruction
Abstract :
[en] The Katangan copper-cobalt deposits (Democratic Republic of Congo) are part of the Central African Copperbelt, one of the world’s greatest metallogenic province. The ore comes to the surface in a series of hills isolated in the miombo woodland. These unique ecosystems present high metals concentration levels where a specific vegetation develops. Flora comprises more than 600 species from which 30 are endemics. Due to the recent revival of mining activities in the region, copper plant communities of Katanga and their associated flora are now critically threatened. Tenke Fungurume Mining sarl (TFM), an important mining company operating in Katanga, has developed a Biological Diversity Action Plan (BDAP) to conserve copper-cobalt flora and mitigate potential species extinction risk. One of the most original BDAP tasks is an ecosystem reconstruction experiment that should preserve plant communities representative of the diversity found on the exploited hill and to provide the plant material for further post-exploitation restoration. From December 2007 to April 2009, full vegetation blocks were translocated with their soil mat on an adequate mineral substrate of 1500m². Since 2008, the artificial ecosystem is monitored every year. Three communities were successfully recreated. A total of 125 species were found in the ecosystem which represents half of the original species richness. Population size decreased for only 12 out of 32 surveyed species. This first experience shows that ecosystem reconstruction is successful and may be used as a strategy to conserve copper-cobalt plant communities in their habitat.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Lebrun, Julie ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Biodiversité et Paysage
Semereab, Ezana
Rensonnet, Audrey
Handjila, Guylain
Malaisse, François ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Biodiversité et Paysage
Mahy, Grégory ;  Université de Liège - ULiège > Forêts, Nature et Paysage > Biodiversité et Paysage
Language :
English
Title :
Mining and Biodiversity: The Study Case of Ecosystem Reconstruction in Katanga (DRC)
Publication date :
September 2010
Event name :
7th SER European Conference on Ecological Restoration
Event organizer :
Society of Ecological Restoration
Institut Méditerranéen d’Ecologie et de Paléo-écologie (IMEP)
Université d'Avignon
Event place :
Avignon, France
Event date :
23 août 2010 au 27 août 2010
Audience :
International
Name of the research project :
Biological Diversity Action plan
Funders :
TFM SA - Tenke Fungurume Mining SA [CD]
Available on ORBi :
since 06 September 2010

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