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Anthropogenic soils --- Anthropogenic soils --- Mineral soils --- Mineral soils --- Nickel --- Nickel --- soil fertility --- soil fertility --- Regeneration. --- Regeneration --- Sowing --- Sowing --- erosion control --- erosion control --- New Caledonia --- New Caledonia

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Data regarding different characteristics - climatic, geological, pedological, botanical (floristic, phytosociologic, evolutionary), phytogeochemical and ecosystemical - of Southern-Central African cupriferous outcrops as well as information concerning relations existing, yesterday and today, between Man and copper outcrops through mining activity and phytoremediation have been knowledgeably summarised. This knowledge acquired, the methodology suitable for the phytocenotic potential assessment regarding one copper site prior to its possible mining has been set up. Previously, a set of information is provided concerning firstly cupriferous outcrops (inventory, distinction of three metallogenic provinces, alteration intensity regarding the original vegetation, botanical prospecting efforts) and secondly cupricolous flora (inventory, endemism, concept of taxa with high phytochemical potential). It transpires that, as far as the recently prospected "anomalies" are concerned, and accordin g to the metallogenic provinces involved, a large proportion of orebodies offers an original vegetation partially altered, or totally destroyed. The pollution forms observed have been listed. The extremely detailed study of the cupricolous taxa within the genus Buchnera L., as well as the description of a new species, Crotalaria cupricola Leteinturier, are presented. Taken as a whole, the study of an ecological unit concerns two components, namely soil and vegetation. The study of several copper outcrops allows to practice this methodology. Its application was also extended to a lead-zinc outcrop located in the same area. Management measures regarding species threatened by mining activities are suggested. Next, revegetation tools for damaged sites are proposed : they resort to the ecologic groups concept on the one hand and to taxa particularly suitable for phytostabilisation on the other. Finally, in situ and ex situ experiences regarding cuprophytes germination and growth have led to pinpoint a number of taxa interesting for their vitality regarding phytoremediation.

Mineral soils --- Mineral soils --- Anthropogenic soils --- Anthropogenic soils --- Copper --- Copper --- Mineral resources --- Mineral resources --- Extraction --- Extraction --- vegetation. --- vegetation --- Bioaccumulation --- Bioaccumulation --- Indicator plants --- Indicator plants --- Detoxification. --- Detoxification --- ecology --- ecology --- Africa --- Africa

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Mineral soils --- Mineral soils --- Soil pollution --- Soil pollution --- Radioactive contamination --- Radioactive contamination --- plant soil relations --- plant soil relations --- Ion exchange capacity --- Ion exchange capacity --- Potassium --- Potassium --- Magnesium --- Magnesium --- Calcium --- Calcium --- Temperature. --- Temperature --- Detoxification. --- Detoxification --- Caesium --- Caesium

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Neotropical region --- Neotropical region --- highlands --- highlands --- ecosystems --- ecosystems --- Soil resources --- Soil resources --- land use --- land use --- Water resources --- Water resources --- soil chemicophysical properties --- soil chemicophysical properties --- Volcanic soils --- Volcanic soils --- Mineral soils --- Mineral soils --- Acid soils --- Acid soils --- Soil water regimes --- Soil water regimes --- organic matter --- organic matter --- Erosion. --- Erosion --- Hydrology --- Hydrology --- Models --- Models --- Topmodel --- Andean region --- Andean region --- Ecuador --- Ecuador --- Topmodel

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Sol de forêt --- Forest soils --- Matière organique --- organic matter --- Dissolution --- Dissolving --- Dioxyde de carbone --- carbon dioxide --- Sol minéral --- Mineral soils --- Potentiel hydrique du sol --- Soil water potential --- Écologie microbienne --- microbial ecology --- Température du sol --- Soil temperature --- Lessivat --- leachates --- Minéralisation --- Mineralization --- Belgium --- 631.417 --- 630*11 <493-13> --- Organic chemistry of soil --- Site factors. Climate, situation, soil in forestry. Forest hydrology and meteorology--Wallonië. Waals Gewest. Region Wallonne --- Theses --- Sciences and engineering --- earth and environmental sciences --- biogeochemistry --- biological sciences --- agriculture --- forestry and wildlife --- soil science --- 631.417 Organic chemistry of soil --- 630*11 <493-13> Site factors. Climate, situation, soil in forestry. Forest hydrology and meteorology--Wallonië. Waals Gewest. Region Wallonne --- biogeochemistry. --- forestry and wildlife. --- soil science. --- Dissolving. --- Earth and environmental sciences --- Biogeochemistry. --- Biological sciences --- Agriculture --- Forestry and wildlife. --- Soil science.