Visioning channel evolution for river management: Toward a functional decision support framework

IF 2.6 4区 环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL Journal of The American Water Resources Association Pub Date : 2023-12-17 DOI:10.1111/1752-1688.13183
P. W. Downs, P. J. Soar, A. L. Cox, D. S. Biedenharn, T. A. Dahl, C. P. Haring, C. R. Thorne
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Abstract

Improvements in simulating and communicating the evolutionary trajectory of river morphology in response to environmental forcing over multi-decadal timeframes would foreshadow the development of “foresight competency” in river management, whereby resource managers could strategically plan toward the most preferred of several plausible futures. Of the six steps in foresight competency, visioning, which involves translating scientific forecasts into a format useable by resource managers via a user-friendly and interactive decision support tool that supports transparent decision-making, is the least well developed. The approach requires converting forecasting model outputs into metrics of channel evolution that highlight transitions either within or between channel morphology states. Here, seven process-based state transition metrics are proposed covering channel planform, morphological stability, corridor belt width, floodplain connectivity, bank erosion rate, bedform habitat diversity, and ecohydraulic diversity. To aid decision support, the metrics are converted into graphical indicators that are intuitive for management use and assembled into several prototype dashboard-style graphical user interfaces designed to facilitate interactivity. A proof-of-concept illustration is provided and priorities in development toward a fully operational decision support tool are discussed. Such developments are critical in ensuring the practical relevance of geomorphology.

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为河流管理展望河道演变:建立功能性决策支持框架
在模拟和传播河流形态在十年以上的时间范围内随环境变化而演变的轨迹方面取得的进展,将预示着河流管理中 "前瞻能力 "的发展,资源管理者可据此从战略角度制定规划,以实现若干似是而非的未来中最理想的未来。在 "展望能力 "的六个步骤中,"远景规划 "是最不完善的一个步骤,它涉及通过用户友好的交互式决策支持工具,将科学预测转化为资源管理人员可用的格式,以支持透明的决策。这种方法需要将预测模型的输出结果转化为渠道演变的指标,以突出渠道形态状态内部或之间的转变。本文提出了七种基于过程的状态转换指标,涵盖河道平面形态、形态稳定性、走廊带宽度、洪泛区连通性、河岸侵蚀率、河床生境多样性和生态水力多样性。为帮助决策支持,这些指标被转换成直观的图形指标,供管理部门使用,并组合成若干仪表盘式图形用户界面原型,以促进互动。本报告提供了概念验证说明,并讨论了开发全面运行的决策支持工具的优先事项。这些开发工作对于确保地貌学的实用性至关重要。
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来源期刊
Journal of The American Water Resources Association
Journal of The American Water Resources Association 环境科学-地球科学综合
CiteScore
4.10
自引率
12.50%
发文量
100
审稿时长
3 months
期刊介绍: JAWRA seeks to be the preeminent scholarly publication on multidisciplinary water resources issues. JAWRA papers present ideas derived from multiple disciplines woven together to give insight into a critical water issue, or are based primarily upon a single discipline with important applications to other disciplines. Papers often cover the topics of recent AWRA conferences such as riparian ecology, geographic information systems, adaptive management, and water policy. JAWRA authors present work within their disciplinary fields to a broader audience. Our Associate Editors and reviewers reflect this diversity to ensure a knowledgeable and fair review of a broad range of topics. We particularly encourage submissions of papers which impart a ''take home message'' our readers can use.
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