Regenerative Energie
Organic amendments would generally be attractive additions for revegetation of ore refining residues that mostly contain negligible organic matter. However organic materials may not be available on mine sites in sufficient quantities and are bulky to handle. In the present study, the opportunities for substituting inorganic fertilisers in place of organic materials (poultry manure, and straw) were investigated for three alkaline, variably saline residues: Bauxite residue (mixed sand and clay fractions), Bauxite Residue sand, and Gold oxide residue.
On gypsum-amended, leached Residue sand and Bauxite residue N, P, and Mn were potentially deficient for plant growth. On the Residue sand, complete inorganic fertiliser was effective in stimulating plant growth because it corrected the deficiencies of N and P and partially corrected Mn deficiency. By contrast, on bauxite residue and gold oxide residue which remained saline, sodic and alkaline even with gypsum amendment and leaching, inorganic fertiliser alone was not effective in correcting nutrient deficiencies on these residues and plant growth was strongly limited by excessive Cl uptake. Maximum growth on Bauxite and Gold oxide residues was obtained with a combination of inorganic fertiliser and poultry manure. On the strongly saline and alkaline silty clay residues, inorganic fertiliser alone was a poor substitute for organic amendments which supplied nutrients and increased plant tolerance to saline substrate.
| Copyright: | © European Compost Network ECN e.V. |
| Quelle: | ORBIT 2003 (Mai 2003) |
| Seiten: | 10 |
| Preis: | € 0,00 |
| Autor: | Dr. Richard W. Bell N. Fletcher Ingrid Krockenberger A. Samaraweera |
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Rechtliche und praktische Unsicherheiten bei der Durchführung des europäischen Klimaanpassungsrechts durch das Bundes- Klimaanpassungsgesetz (KAnG)
© Lexxion Verlagsgesellschaft mbH (6/2025)
In the context of the European Climate Law (EU) 2021/1119), the Governance Regulation (EU) 2018/1999 and the Nature Restoration Regulation (EU) 2024/1991, the KAnG came into force on July 1, 2024.
Transformatives Klimarecht: Raum, Zeit, Gesellschaft
© Lexxion Verlagsgesellschaft mbH (6/2025)
This article contends that climate law should be conceived as inherently transformative in a double sense. The law not only guides the necessary transformation of economy and society, but is itself undergoing transformation.
Maßnahmen zur Klimaanpassung sächsischer Talsperren
© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2025)
Die Landestalsperrenverwaltung des Freistaates Sachsen (LTV) betreibt aktuell insgesamt 87 Stauanlagen, darunter 25 Trinkwassertalsperren. Der Stauanlagenbestand ist historisch gewachsen und wurde für unterschiedliche Zwecke errichtet.