Dynamics and management of riverine freshwater lenses

河流淡水透镜体的动力学和管理

• 批准号: LP140100317
• 负责人: Prof Adrian Werner
• 金额: $ 20.73万
• 依托单位: Flinders University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-05-01 至 2019-07-05
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP140100317
• 关键词: Dynamics; management; riverine; freshwater; lenses

Rivers are the main source of freshwater for many ecosystems in semi-arid zones. River water may seep into the floodplain aquifer, providing an accessible store of low-salinity water within freshwater lenses. The project aims to investigate lens dynamics using numerical groundwater models supported by extensive field data from the lower River Murray, where freshwater lenses are declining. The project aims to model lens extent, growth and decline in response to natural variations in climate and to changes in land use, river regulation and groundwater pumping. Project results intend to evaluate management options to promote freshwater lenses, with the aim of improving river salinity and floodplain vegetation health.

河流是半干旱地区许多生态系统的主要淡水来源。河水可能渗入洪泛区含水层，在淡水透镜体中提供可利用的低盐度水储存。该项目的目的是调查透镜动态使用数值地下水模型支持广泛的实地数据从下游墨累河，淡水透镜正在下降。该项目旨在模拟透镜的范围、增长和衰退，以应对气候的自然变化以及土地使用、河流治理和地下水抽取方面的变化。项目成果旨在评价促进淡水透镜体的管理备选方案，目的是改善河流盐度和洪泛区植被健康。