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The three-infrastructures framework and water risks in the Murray-Darling Basin, Australia 澳大利亚墨累-达令盆地三大基础设施框架与水风险
IF 3.2 Q2 Environmental Science Pub Date : 2022-12-07 DOI: 10.1080/13241583.2022.2151106
John F. Williams, M. Colloff, R. Grafton, Shahbaz Khan, Z. Paydar, Paul R. Wyrwoll
ABSTRACT Using a three-infrastructures (grey, soft, and green) framework, we examined key risks to water availability and quality in the Murray-Darling Basin, Australia. These risks include increased irrigation efficiency, without a quantitative knowledge of the impact on water flow pathways, particularly return flows, growth in farm dams and floodplain harvesting, and unsustainable management of salinity. Critical to mitigating these risks are the metering, monitoring, and auditing of water flows, effective linkages between evidence and analysis, and accountability of decision-makers operating in the public interest. We contend that these approaches need to be supported by innovative risk assessments, which are fit-for-purpose under the MDB Plan, wherein the ‘who, what, when and where’ are assessed in relation to cumulative, systemic, and cascading risks from human actions.
采用三种基础设施(灰色、软质和绿色)框架,我们研究了澳大利亚墨累-达令盆地水可用性和水质的主要风险。这些风险包括灌溉效率的提高,但对水流路径(特别是回流)的影响缺乏定量的了解,农田水坝和洪泛区收获的增长,以及不可持续的盐度管理。减轻这些风险的关键是对水流的计量、监测和审计,证据与分析之间的有效联系,以及为公共利益行事的决策者的问责制。我们认为,这些方法需要得到创新风险评估的支持,这些评估符合多边开发银行计划的目的,其中“谁、什么、何时、何地”是根据人类行为带来的累积、系统性和级联风险进行评估的。
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引用次数: 6
Irrigation water use driving desiccation of Earth’s endorheic lakes and seas 灌溉用水导致地球内陆湖泊和海洋干涸
IF 3.2 Q2 Environmental Science Pub Date : 2022-11-11 DOI: 10.1080/13241583.2022.2141333
Michael L. Wine
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引用次数: 0
Water banking in aquifers as a tool for drought resilience in the Murray Darling Basin 墨累-达令盆地含水层蓄水作为抗旱工具
IF 3.2 Q2 Environmental Science Pub Date : 2022-11-09 DOI: 10.1080/13241583.2022.2144115
D. Page, D. Gonzalez, T. Clune, Y. Colton, G. Bonnett
ABSTRACT Water banking in aquifers is an internationally proven, low-cost solution that could improve drought resilience across the Murray Darling Basin. While significant potential for water banking through managed aquifer recharge (MAR) or conjunctive use of surface and groundwater resources has been identified in the Murray Darling Basin Plan, there is a need to establish clear policy and institutional foundations to incentivise adoption. To provide appropriate incentives for schemes, the legal status of rights to recharge, store and recover water, and the rules and costs which apply to groundwater extraction need to be clear and transparent. This paper aims to clarify principles and frameworks to secure water rights for recharge, storage, and recovery within the sustainable limits of water resources currently set under law. The current Basin Plan supports water banking, and banking would be complementary with objective and outcomes sought by future Basin Plans. Existing water accounting systems would need to accommodate this new capacity. Institutional arrangements and financial structures of water banking in the USA provide guidance for Australia. Demonstration sites would enable concurrent policy development and institutional set-up and provide critical experience to serve as models for wider adoption as part of future Murray Darling Basin plans.
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引用次数: 4
Science and policy delay leading to loss of natural capital: case study of Te Waihora/Lake Ellesmere 科学和政策的滞后导致自然资本的损失:以怀霍拉湖/埃尔斯米尔湖为例
IF 3.2 Q2 Environmental Science Pub Date : 2022-11-08 DOI: 10.1080/13241583.2022.2133665
Bryan Robert Jenkins
ABSTRACT The paper analyses sources of delay in developing environmental interventions to address overallocation of groundwater and water quality degradation for Te Waihora/Lake Ellesmere, a coastal lake in the Canterbury Region of New Zealand. The analysis highlighted the length of time required to collect the science to understand an issue and to formulate and implement policy responses. It also identified delays due to scientific uncertainty, scientific controversies, disregarding science, decision processes, and the response time of the natural system. The absence of clear policy approaches and environmental outcomes in order to implement environmental legislation was a significant source of delay. Delays in implementing environmental interventions led to loss of natural capital with groundwater overallocation reducing flows in groundwater-fed streams and freshwater inflows to the lake, and land use intensification degrading groundwater, groundwater-fed streams, and lake water quality. The extent of development beyond sustainable limits during these delays may have permanently compromised the ability to implement comprehensive environmental interventions.
摘要:本文分析了新西兰坎特伯雷地区沿海湖泊怀霍拉/埃尔斯米尔湖(Te Waihora/Lake Ellesmere)为解决地下水过度分配和水质退化问题而采取环境干预措施的延误原因。该分析强调了收集科学以理解一个问题以及制定和实施政策应对所需的时间长度。它还确定了由于科学不确定性、科学争议、无视科学、决策过程和自然系统的响应时间而导致的延迟。执行环境立法缺乏明确的政策办法和环境成果是造成拖延的一个重要原因。实施环境干预措施的延误导致自然资本的损失,地下水的过度分配减少了地下水溪流的流量和流入湖泊的淡水,土地利用集约化使地下水、地下水溪流和湖泊水质退化。在这些延误期间,超出可持续限度的发展程度可能会永久损害执行全面环境干预措施的能力。
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引用次数: 0
Climate adaptation options for the 2026 MDB Plan: opportunities for managing climate risk 2026年多边发展银行计划的气候适应选择:管理气候风险的机会
IF 3.2 Q2 Environmental Science Pub Date : 2022-10-30 DOI: 10.1080/13241583.2022.2133643
J. Alexandra
ABSTRACT How water resources are defined, both conceptually and legally, is central to their efficient and equitable allocation. With climate change introducing significant uncertainties to water resources management, flexible allocation frameworks are needed that can adapt to changing conditions. This paper explores options for climate-adaptive water allocation in Australia’s Murray Darling Basin. The 2026 revision of the Basin Plan may provide significant opportunities for proactive climate risk mitigation, but this depends on rigorous evaluation of policy options. The Water Act requires that the Plan’s revisions use the best available science to inform strategies that minimise the impact of climate risks. The Act also enables the use of ratios and formulas as alternatives to using long-term averages as the basis of the Plan. However, there have been limited investigations into using these alternatives. Achieving more adaptive policies depends on rigorously assessing climate risk management options. Given the far-reaching consequences of climate change, rigorous investigations are needed into reforms to the established approaches to water resources planning and to existing water entitlements and allocation regimes. At minimum, this means reassessing the total resource pool and all subsidiary targets and investigating allocation frameworks that equitably share risks between extractive users and the environment.
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引用次数: 4
Risks related to groundwater in the Murray Darling Basin 墨累-达令盆地地下水相关风险
IF 3.2 Q2 Environmental Science Pub Date : 2022-10-30 DOI: 10.1080/13241583.2022.2140904
A. Ross, R. Evans, R. Nelson
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.
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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引用次数: 5
Evaluating Australian drought policy from the perspective of good-practice strategic policymaking 从良好做法战略决策的角度评价澳大利亚的干旱政策
IF 3.2 Q2 Environmental Science Pub Date : 2022-09-09 DOI: 10.1080/13241583.2022.2118808
N. Samnakay
ABSTRACT The sustainable management of Australia’s natural resources has increasingly attracted policy interventions by the Australian government. Drought policy represents one sector where the Australian government is a signatory to sustainable use of natural resources, cognisant of the nexus between agricultural production practices and environmental condition. A strategic sustainability policy evaluation framework is applied to drought policy to analyse policy design and process relationships with a view to informing improvements in these policy facets. The analysis finds that at the national level, the nature of the policy problem is inadequately defined, giving rise to generic objectives and overly narrow policy instrument choices that are inconsistent with the complex nature of drought and resilience objectives. Policy instrument choice is focussed on farm financial viability, with simplistic correlations drawn between farm profitability and improved social and environmental wellbeing. The appetite for broader structural reforms to agricultural and rural community development are lacking politically and by industry, but necessary given emerging social, economic and environmental challenges to agriculture. Structural reforms will be inevitable if the complexities between production and sustainable natural resource management are to be reconciled. More systemic and nuanced understandings of resilience and drought risk are needed to deliver on the policy ambition of drought resilience.
摘要澳大利亚自然资源的可持续管理越来越受到澳大利亚政府的政策干预。干旱政策代表了澳大利亚政府签署可持续利用自然资源的一个部门,认识到农业生产实践与环境条件之间的联系。将战略可持续性政策评估框架应用于干旱政策,以分析政策设计和过程关系,从而为这些政策方面的改进提供信息。分析发现,在国家一级,政策问题的性质没有得到充分界定,导致了通用目标和过于狭窄的政策工具选择,这与干旱和抗灾能力目标的复杂性不一致。政策工具的选择侧重于农场的财务可行性,农场盈利能力与改善社会和环境福祉之间的相关性过于简单。政治上和工业上都缺乏对农业和农村社区发展进行更广泛结构性改革的意愿,但考虑到农业面临的新的社会、经济和环境挑战,这是必要的。如果要调和生产和可持续自然资源管理之间的复杂性,结构改革将是不可避免的。需要对抗灾能力和干旱风险有更系统、更细致的理解,以实现抗旱能力的政策目标。
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引用次数: 0
Management of urban waterways in Melbourne, Australia: 2 – integration and future directions 澳大利亚墨尔本城市水道管理:2——整合和未来方向
IF 3.2 Q2 Environmental Science Pub Date : 2022-07-26 DOI: 10.1080/13241583.2022.2103896
B. Hart, M. Francey, C. Chesterfield, D. Blackham, Neil McCarthy
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引用次数: 1
Cyanobacteria, water quality and public health implications: a systematic scoping review 蓝藻,水质和公共卫生影响:一个系统的范围审查
IF 3.2 Q2 Environmental Science Pub Date : 2022-07-14 DOI: 10.1080/13241583.2022.2083051
Jack Grentell, R. Adhikary, Aparna Lal
ABSTRACT Cyanobacteria pose a significant threat to human health. Knowledge of the most prominent physical parameters related with cyanobacterial growth not only aids water monitoring but public health risk management, to enable rapid local responses to changing water quality conditions. This paper is a systematic scoping review of Australian environmental studies that examined a link between cyanobacterial growth and one or more specific physical water quality parameters. The 34 included articles showed a consistent correlation between water quality parameters and cyanobacterial growth. Temperature and light exposure were positively correlated with cyanobacteria in all studies. Salinity, flow, wind speed and turbidity were negatively correlated with cyanobacteria in all studies. Geographically, majority of the studies focussed on the Murray-Darling Basin. The consistency across studies indicates a potential for broader environmental monitoring criteria to aid in both water quality management and public health response to cyanobacterial bloom formation.
摘要蓝藻对人类健康构成重大威胁。了解与蓝藻生长相关的最突出的物理参数不仅有助于水监测,而且有助于公共卫生风险管理,使当地能够对不断变化的水质状况做出快速反应。本文是对澳大利亚环境研究的系统范围综述,该研究考察了蓝藻生长与一个或多个特定物理水质参数之间的联系。纳入的34篇文章显示,水质参数与蓝藻生长之间存在一致的相关性。在所有研究中,温度和光照与蓝藻呈正相关。在所有研究中,盐度、流量、风速和浊度与蓝藻呈负相关。从地理位置来看,大多数研究都集中在墨累-达令盆地。研究之间的一致性表明,有可能制定更广泛的环境监测标准,以帮助水质管理和公共卫生应对蓝藻水华的形成。
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引用次数: 3
Contemporising best practice water management: lessons from the Murray-Darling Basin on participatory water management in a mosaiced landscape 当代最佳水管理实践:墨累-达令盆地在马赛克景观中的参与式水管理经验
IF 3.2 Q2 Environmental Science Pub Date : 2022-07-08 DOI: 10.1080/13241583.2022.2097365
Christine Freak, J. Mcleod, K. Thompson, L. Christesen, Claire Miller
ABSTRACT The Murray-Darling Basin Plan is generally applauded globally for ‘best-practice’ water management. The notion of ‘best practice’ is fluid, informed by constant learning from what works and what does not. The Plan’s 10-year anniversary in 2022 provides a pivotal point to reflect on practical lessons learnt throughout its implementation and incorporate those into contemporised ‘best practice’. This paper explores the emerging paradigm of participatory approaches with private landholders in the conservation and biodiversity fields, and its applicability to water management ‘best practice’. Through an original framework and case studies, we explore the opportunity that these practical exemplars offer to refine contemporary theoretical notions of best practice. A case is ultimately presented in which a contemporised paradigm – based on co-operation, co-benefit outcomes and participatory partnerships – offers significant potential for future management in the Basin, especially to overcome deeply entrenched trust deficits among communities.
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引用次数: 3
期刊
Australasian Journal of Water Resources
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