Water quality risks in the Murray-Darling basin

IF 2.4 Q2 WATER RESOURCES
S. Beavis, V. Wong, L. Mosley, D. Baldwin, James O. Latimer, P. Lane, Aparna Lal
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引用次数: 4

Abstract

ABSTRACT Management of water resources in the Murray-Darling Basin has historically focussed on water security and the allocation of water for users with competing needs. This focus was reflected in the seminal paper on multiple risks to shared water across the basin by the Commonwealth Scientific and Industrial Research Organisation 15 years ago. That paper captured key concerns that were at the forefront for decision-makers, managers and policy-makers who were, at that time, experiencing the early impacts of the Millennium Drought. Water quality, then, was secondary to the issues of water security. Across the following years, new water quality risks have emerged along with a more nuanced understanding of the complex interplay between climate, floodplain/catchment vegetation, hydrology, and water quality. Critically, this improved understanding applies to the systemic shocks of extreme events, such as the 2020 bushfires and hypoxic blackwater events, as well as the variability, duration and volumes of natural and regulated river flows. In this paper, we explore the key water quality issues that currently face the Basin, and reframe water quality as an integral rather than incidental component of the risks to shared water in the Basin, with the associated implications for policy development that this implies.
墨累-达令流域的水质风险
摘要墨累-达令盆地的水资源管理历来侧重于水安全和为有竞争需求的用户分配水资源。这一重点反映在英联邦科学与工业研究组织关于整个流域共享水的多重风险的开创性论文中15 几年前。该文件反映了当时正经历千年干旱早期影响的决策者、管理者和决策者最关心的关键问题。因此,水质是水安全问题的次要问题。在接下来的几年里,随着对气候、洪泛平原/集水区植被、水文和水质之间复杂相互作用的更细致理解,出现了新的水质风险。至关重要的是,这种理解的提高适用于极端事件的系统性冲击,如2020年的丛林大火和缺氧黑水事件,以及自然和调节河流流量的可变性、持续时间和流量。在本文中,我们探讨了流域目前面临的关键水质问题,并将水质重新定义为流域共享水风险的一个组成部分,而不是偶然的组成部分,以及这对政策制定的相关影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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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