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McLeod, K.W.; Ciravolo, T.G. |
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Title  |
Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions |
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Journal Article |
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2003 |
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Environmental Toxicology and Chemistry |
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22 |
Issue |
12 |
Pages |
2948-2951 |
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Keywords |
Heavy metals ecological abstracts: pollution (73 7 3) seedling saturated medium biomass manganese sensitivity analysis bioaccumulation Nyssa aquatica Taxodium distichum |
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Abstract |
In anaerobic soils of wetlands, Mn is highly available to plants because of the decreasing redox potential and pH of flooded soil. When growing adjacent to each another in wetland forests, water tupelo (Nyssa aquatica L.) had 10 times greater leaf manganese concentration than bald cypress (Taxodium distichum [L.] Richard). This interspecific difference was examined over a range of manganese-enriched soil conditions in a greenhouse experiment. Water tupelo and bald cypress seedlings were grown in fertilized potting soil enriched with 0, 40, 80, 160, 240, 320, and 400 mg Mn/L of soil and kept at saturated to slightly flooded conditions. Leaf Mn concentration was greater in water tupelo than bald cypress for all but the highest Mn addition treatment. Growth of water tupelo seedlings was adversely affected in treatments greater than 160 mg Mn/L. Total biomass of water tupelo in the highest Mn treatment was less than 50% of the control. At low levels of added Mn, bald cypress was able to restrict uptake of Mn at the roots with resulting low leaf Mn concentrations. Once that root restriction was exceeded, Mn concentration in bald cypress leaves increased greatly with treatment; that is, the highest treatment was 40 times greater than control (4,603 vs 100 < mu >g/g, respectively), but biomass of bald cypress was unaffected by manganese additions. Bald cypress, a tree that does not naturally accumulate manganese, does so under manganese-enriched conditions and without biomass reduction in contrast to water tupelo, which is severely affected by higher soil Mn concentrations. Thus, bald cypress would be less affected by increased manganese availability in swamps receiving acidic inputs such as acid mine drainage, acid rain, or oxidization of pyritic soils. |
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K.W. McLeod, Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, United States mcleod@srel.edu |
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0730-7268 |
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Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions; 2574798; United-States 15; Geobase |
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CBU @ c.wolke @ 16010 |
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302 |
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Walitt, A.; Jasinski, R.; Keilin, B. |
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Title |
Silicate treatment of coal mine refuse piles |
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Journal Article |
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Year |
1970 |
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acid mine drainage; coal; economics; environmental geology; methods; mining; organic residues; pollution; prevention; sedimentary rocks; sodium silicate; solutions; treatment 22, Environmental geology |
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0085-7068 |
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Silicate treatment of coal mine refuse piles; 1976-011512; United States (USA); GeoRef; English |
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CBU @ c.wolke @ 6853 |
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221 |
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Mataix Gonzalez, C.; Escribano Bombin, M. |
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Title |
Sistemas de control y tratamiento de drenajes acidos de minas. Control and treatment systems for acid mine drainage |
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1996 |
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Ingeopres |
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42 |
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15-18 |
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acid mine drainage; dredging; effects; inorganic acids; metal ores; mines; pollution; sewage; sulfuric acid; water pollution; water treatment 22, Environmental geology |
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1136-4785 |
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Sistemas de control y tratamiento de drenajes acidos de minas. Control and treatment systems for acid mine drainage; 1997-066186; References: 7; 4 plates Spain (ESP); GeoRef; Spanish |
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CBU @ c.wolke @ 6385 |
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306 |
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Beers, W.F.; Ciolkosz, E.J.; Kardos, L.T. |
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Title |
Soil as a medium for the renovation of acid mine drainage water |
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1974 |
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acid mine drainage; coal; environmental geology; methods; mining; organic residues; pollution; rivers and streams; sedimentary rocks; soils; treatment; water 22, Environmental geology |
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0085-7068 |
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Soil as a medium for the renovation of acid mine drainage water; 1976-012550; illus. United States (USA); GeoRef; English |
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CBU @ c.wolke @ 6839 |
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458 |
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Author |
Adam, K. |
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Title |
Solid wastes management in sulphide mines: From waste characterisation to safe closure of disposal sites |
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Journal Article |
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2003 |
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Minerals and Energy Raw Materials Report |
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18 |
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4 |
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25-35 |
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Waste Management and Pollution Policy Pollution and waste management non radioactive geographical abstracts: human geography environmental planning (70 11 5) geological abstracts: environmental geology (72 14 2) waste disposal waste management solid waste mining industry acid mine drainage Europe Eurasia |
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Environmentally compatible Waste Management schemes employed by the European extractive industry for the development of new projects, and applied in operating sulphide mines, are presented in this study. Standard methodologies used to assess the geotechnical and geochemical properties of the solid wastes stemming from mining and processing of sulphidic metal ores are firstly given. Based on waste properties, the measures applied to ensure the environmentally safe recycling and disposal of sulphidic wastes are summarised. Emphasis is given on the novel techniques developed to effectively prevent and mitigate the acid drainage phenomenon from sulphidic mine wastes and tailings. Remediation measures taken to minimise the impact from waste disposal sites in the post-closure period are described. |
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K. Adam, ECHMES Ltd, Mikras Asias 40-42, Athens 11527, Greece echmes@otenet.gr |
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1404-1049 |
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Solid wastes management in sulphide mines: From waste characterisation to safe closure of disposal sites; 2582509; Norway 25; Geobase |
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CBU @ c.wolke @ 17510 |
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492 |
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