Full floodplain connectivity: Realising opportunities for ‘Stage 0’ river restoration

IF 1.7 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES River Research and Applications Pub Date : 2024-04-16 DOI:10.1002/rra.4283
Stewart J. Clarke
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Abstract

Continued declines in freshwater biodiversity and the challenges of climate change are creating greater interest in river restoration projects. Increasing recognition of the interaction between biological, geomorphological and hydrological processes has led to the development of ‘Stage 0’ river restoration. Stage 0 reaches are typically multi‐thread anabranching systems connected to the floodplain and its ecosystems. It is suggested that the defining characteristic of Stage 0 conditions is that of connectivity (longitudinal, lateral and vertical) at base flows. The methods or mechanisms that can re‐create such reaches are described, namely valley floor reset, beaver activity, beaver dam analogues and the use of large wood in the channel and floodplain. The scope for wider adoption of Stage 0 is then discussed and recommendations for expanding this approach across temperate regions with a long history of river modification and higher population densities are presented.
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洪泛区全面连通:实现 "0 阶段 "河流修复的机遇
淡水生物多样性的持续减少和气候变化带来的挑战使人们对河流修复项目产生了更大的兴趣。人们越来越认识到生物、地貌和水文过程之间的相互作用,这导致了 "0 级 "河流修复的发展。0 级 "河段通常是与洪泛区及其生态系统相连的多线程、无分支系统。有观点认为,"0 阶段 "条件的决定性特征是在基流条件下的连通性(纵向、横向和垂直)。本文介绍了可以重新创造这种河段的方法或机制,即谷底重置、海狸活动、海狸坝模拟以及在河道和洪泛平原使用大型木材。然后讨论了更广泛采用第 0 阶段的范围,并提出了在河流改造历史悠久、人口密度较高的温带地区推广这种方法的建议。
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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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