Ecosystem restoration of bauxite-processing residue sand disposal areas in Western Australia: Important biogeochemical processes and effective fertilisation strategies

西澳大利亚铝土矿加工残砂处理区的生态系统恢复：重要的生物地球化学过程和有效的施肥策略

• 批准号: LP0989670
• 负责人: Prof Chengrong Chen
• 金额: $ 24.19万
• 依托单位: Griffith University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2009
• 资助国家: 澳大利亚
• 起止时间: 2009-08-04 至 2013-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0989670
• 关键词: Ecosystem; restoration; bauxite; processing; residue

Alumina production is one of Australia's most important mining activities. Residue from bauxite-processing must be managed appropriately to minimise detrimental impacts on the surrounding environment. The location of Alcoa's WA Refineries in environmentally- and community- sensitive areas necessitates a detailed understanding of residue disposal area (RDA) management. Currently little is known about the biogeochemical cycling of nitrogen, phosphorus and carbon in the residue sand despite its importance for sustainable rehabilitation practice. Findings from this project are critical for developing improved fertilisation strategies and protocols for ecosystem restoration of RDAs, which will be applicable both in Australia and overseas.

氧化铝生产是澳大利亚最重要的采矿活动之一。铝土矿加工产生的残留物必须得到适当管理，以尽量减少对周围环境的有害影响。美铝西澳炼油厂位于环境和社区敏感地区，因此需要详细了解残渣处置区 (RDA) 管理。目前，人们对残砂中氮、磷和碳的生物地球化学循环知之甚少，尽管它对于可持续恢复实践很重要。该项目的研究结果对于制定改进的 RDA 生态系统恢复施肥策略和协议至关重要，这将适用于澳大利亚和海外。