| Abstrakt: |
Artificial stabilization may limit the geomorphic and ecological functions of the large wood (e.g., Johnson et al., 2000; Wohl et al., 2019), but pioneering restoration experiments now underway in Oregon (Deer Creek story map, 2021) involve adding large quantities of unanchored wood to river corridors in an attempt to recreate the stage 0 conditions of the Cluer and Thorne (2014) river evolution model. Increasing ability to quantify wood budgets, wood regimes, and wood process domains in diverse portions of a river network and in diverse networks across the globe will inform both our understanding of wood dynamics and incorporation of this understanding in river management. The use of large wood in river restoration is now routine in some regions, such as the US Pacific Northwest, and national syntheses (e.g., Cashman et al., 2019; Grabowski et al., 2019; Kail et al., 2007; Roni et al., 2015) and guidelines (BoR, 2015) exist for large wood management and restoration, but wood is still routinely removed from river corridors in many regions, regardless of whether the wood poses a threat to people or infrastructure (e.g., Ruiz-Villanueva et al., 2014a; Shirey et al., 2020). Large wood has gradually come to be recognized as a critical component of process and form in river corridors, reflecting increasing recognition of the complex interactions among water, sediment, living vegetation, and wood in forested regions (Gurnell, 2013; Montgomery et al., 2003; Ruiz-Villanueva et al., 2016b; Wohl, 2017). [Extracted from the article] |
Plný text