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首页> 外文会议>AWRA's 2000 Summer Specialty Conference on Riparian Ecology and Management in Multi-Land USE Watersheds Aug 28-31, 2000 Portland, Oregon >GEOMORPHIC INSIGHT AND SUCCESSFUL STREAM CORRIDOR REHABILITATION IN HEAVILY IMPACTED WATERSHEDS
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GEOMORPHIC INSIGHT AND SUCCESSFUL STREAM CORRIDOR REHABILITATION IN HEAVILY IMPACTED WATERSHEDS

机译：重冲击水域的地貌认识和成功的流水走廊修复

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摘要

The vital role of geomorphology in the ecological functioning of streams and watersheds is now widely appreciated. However, the lessons of geomorphology continue to be ignored by many practitioners of stream and watershed rehabilitation, particularly in the urban context. Designers often fail to appreciate the types of geomorphic processes associated with different landscape conditions, the rates of geomorphic processes associated with these conditions, or even long-understood rules of thumb concerning the stability of geomorphic surfaces. This has resulted in the proliferation of projects that fail to meet their intended objectives, whether this be slope stabilization or habitat enhancement, and may actually exacerbate future erosional impacts to rivers and streams. Such projects not only represent a waste of scarce funding resources, but they delay the enhancement benefits required by stream organisms at risk. We discuss some basic geomorphic principles pertinent to successful stream and watershed rehabilitation design and implementation and highlight the consequences of ignoring geomorphic controls. Failure to openly discuss unsuccessful projects or techniques and learn from these mistakes only inhibits advancement of the craft and science of watershed and stream corridor rehabilitation.
机译：地貌学在河流和流域的生态功能中的重要作用现已广为人知。但是，许多溪流和集水区修复的从业者仍然忽略了地貌学的教训，特别是在城市环境中。设计人员常常无法理解与不同景观条件相关的地貌过程的类型，与这些条件相关的地貌过程的速率，甚至是关于地貌表面稳定性的长期公认的经验法则。这导致无法达到预期目标的项目激增，无论是稳定边坡还是改善栖息地，并且实际上可能加剧未来对河流和溪流的侵蚀影响。这些项目不仅浪费了稀缺的资金资源，而且延迟了处于危险中的河流生物所需的增强效益。我们讨论了与成功进行河流和流域恢复设计和实施有关的一些基本地貌原理，并强调了忽略地貌控制的后果。不公开讨论不成功的项目或技术并从这些错误中吸取教训只会阻碍流域和河流走廊修复技术和科学的进步。

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