Risks related to groundwater in the Murray Darling Basin

IF 2.4 Q2 WATER RESOURCES Australasian Journal of Water Resources Pub Date : 2022-10-30 DOI:10.1080/13241583.2022.2140904
A. Ross, R. Evans, R. Nelson
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引用次数: 5

Abstract

ABSTRACT Over the past 20 years, the consideration of risk related to groundwater in the Murray-Darling Basin has evolved from concerns about the impact of groundwater extraction on surface water resources to an integrated assessment of risks to connected Basin water resources. The Murray-Darling Basin Plan includes a comprehensive framework for assessing risks to Basin water resources. This assessment emphasises risks to surface water resources and does not fully consider or account for risks of depletion and degradation of groundwater resources and groundwater-dependent ecosystems. There are also risks relating to gaps in the implementation of integrated management of connected groundwater and surface water resources and storage. Consistent definition of hydrological connectivity is required together with longer planning timeframes. Multi-year planning rules and policies need to be further developed to exploit the full potential of integrated management of aquifer and surface water resources and storage to manage the risks of droughts and floods. The assessment in water resource plans of risks to subterranean groundwater-dependent ecosystems and terrestrial vegetation should be strengthened. Risks to groundwater quality must be adequately monitored and assessed to avoid harm to groundwater users. Further improvements can be made in the assessment of cumulative risks owing to coal seam gas and coal mining. Effective risk management requires collective scientific and policy efforts. Additional research can be targeted towards knowledge gaps and uncertainties that pose the greatest risk to groundwater resources and their use, and ecosystem viability. Most importantly, further training and capacity building in water management agencies is a critical requirement to enable effective and transparent monitoring and management of Basin water resources.
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墨累-达令盆地地下水相关风险
摘要过去20年 多年来,对墨累-达令盆地地下水相关风险的考虑已经从对地下水开采对地表水资源影响的担忧演变为对连接盆地水资源风险的综合评估。墨累-达令流域计划包括一个评估流域水资源风险的综合框架。该评估强调了地表水资源的风险,没有充分考虑或说明地下水资源和依赖地下水的生态系统的枯竭和退化风险。在对相连的地下水和地表水资源和储存进行综合管理方面也存在差距。水文连通性的一致定义需要更长的规划时间框架。需要进一步制定多年规划规则和政策,充分发挥综合管理含水层和地表水资源和储存的潜力,以管理干旱和洪水风险。应加强水资源计划中对依赖地下水的生态系统和陆地植被的风险评估。必须充分监测和评估地下水质量风险,以避免对地下水使用者造成伤害。可以进一步改进煤层气和煤矿开采累积风险的评估。有效的风险管理需要集体的科学和政策努力。额外的研究可以针对对地下水资源及其使用和生态系统可行性构成最大风险的知识差距和不确定性。最重要的是,水管理机构的进一步培训和能力建设是对流域水资源进行有效和透明监测和管理的关键要求。
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来源期刊
CiteScore
5.10
自引率
21.90%
发文量
25
期刊介绍: The Australasian Journal of Water Resources ( AJWR) is a multi-disciplinary regional journal dedicated to scholarship, professional practice and discussion on water resources planning, management and policy. Its primary geographic focus is on Australia, New Zealand and the Pacific Islands. Papers from outside this region will also be welcomed if they contribute to an understanding of water resources issues in the region. Such contributions could be due to innovations applicable to the Australasian water community, or where clear linkages between studies in other parts of the world are linked to important issues or water planning, management, development and policy challenges in Australasia. These could include papers on global issues where Australasian impacts are clearly identified.
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