加拿大关于河道迁移和河岸侵蚀预测观点的全国调查结论

IF 1.7 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
C. Kupferschmidt, A. D. Binns
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引用次数: 0

摘要

河岸侵蚀和河道迁移是一种地貌过程,当对人类或基础设施造成影响时,可能会导致重大危害。与洪水不同,加拿大就如何最好地评估河道侵蚀危害提供建议的国家指导方针非常有限。相反,地区和地方管辖机构依赖于基于不同政策成熟度的技术。本研究介绍了一项全国性调查的结果,该调查涉及加拿大对河道迁移和河岸侵蚀预测的看法,共收到来自加拿大各地的 40 多份回复。结果显示,预测被用于多种目的,但很少报告置信区间。航拍图像和基于调查的方法是众所周知且广泛使用的河道迁移和河岸侵蚀预测技术。大多数受访者指出了提高准确性所面临的技术和资金挑战,包括客户支付意愿、数据质量/成本问题以及土地利用和气候变化导致的水文变化。本报告提出了几项改进最佳实践的建议,重点是开发侵蚀数据集、改进数据访问以及提供更多培训机会。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Findings from a National Survey of Canadian perspectives on predicting river channel migration and river bank erosion
River bank erosion and river channel migration are geomorphic processes that can result in significant hazards when there are impacts to humans or infrastructure. Unlike flooding, there are limited national guidelines in Canada that provide recommendations on how to best assess riverine erosion hazards. Instead regional and local jurisdictions rely on techniques based on varying levels of policy maturity. The current study presents findings of a nationwide survey on Canadian perspectives on predicting river channel migration and river bank erosion which received more than 40 responses from across Canada. Results showed that predictions were used for a variety of purposes, but that confidence intervals were rarely reported. Aerial imagery and survey‐based methods were the well‐known and widely‐used techniques for predicting river channel migration and river bank erosion. A majority of respondents identified both technical and financial challenges to improving accuracy including client willingness to pay, data quality/cost issues, and hydrologic changes due to land use and climate change. Several recommendations for improving best‐practices are provided, with a focus on the development of erosion datasets, improving data access, and providing additional training opportunities.
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来源期刊
River Research and Applications
River Research and Applications 环境科学-环境科学
CiteScore
4.60
自引率
9.10%
发文量
158
审稿时长
6 months
期刊介绍: River Research and Applications , previously published as Regulated Rivers: Research and Management (1987-2001), is an international journal dedicated to the promotion of basic and applied scientific research on rivers. The journal publishes original scientific and technical papers on biological, ecological, geomorphological, hydrological, engineering and geographical aspects related to rivers in both the developed and developing world. Papers showing how basic studies and new science can be of use in applied problems associated with river management, regulation and restoration are encouraged as is interdisciplinary research concerned directly or indirectly with river management problems.
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