Process-Based Ecological River Restoration: Visualizing Three-Dimensional Connectivity and Dynamic Vectors to Recover Lost Linkages
By G. M. Kondolf, Andrew J. Boulton, S. O’Daniel, Geoffrey C. Poole, F. Rahel, Emily H. Stanley, E. Wohl, Å. Bång, Julia Carlstrom, C. Cristoni and 4 more. 2006
523 citations recorded by the source corpus.
Human impacts to aquatic ecosystems often involve changes in hydrologic connectivity and flow regime. Drawing upon examples in the literature and from our experience, we developed conceptual models and used simple bivariate plots to visualize human impacts and restoration efforts in terms of connectivity and flow dynamics. Human-induced changes in longitudinal, lateral, and vertical connectivity are often accompanied by changes in flow dynamics, but in our experience restoration efforts to date have more often restored connectivity than flow dynamics. Restoration actions have included removing dams to restore fish passage, reconnecting flow through artificially cut-off side channels, setting back or breaching levees, and removing fine sediment deposits that block vertical exchange with the bed, thereby partially restoring hydrologic connectivity, i.e., longitudinal, lateral, or vertical. Restorations have less commonly affected flow dynamics, presumably because of the social and economic importance of water diversions or flood control. Thus, as illustrated in these bivariate plots, the trajectories of ecological restoration are rarely parallel with degradation trajectories because restoration is politically and economically easier along some axes more than others.
Subfields: Ecology, Nature and Landscape Conservation
View Paper: https://www.semanticscholar.org/paper/70b49b6d202a5d9e3933899559ca3806b2c96f61
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In Nature and Landscape Conservation
Citations in the corpus
- From the myth of a lost paradise to targeted river restoration: forget natural references and focus on human benefits (2009, background): “These studies highlighted the high spatial heterogeneity (Ward et al., 2001) and connectivity in dynamic systems (Ward and Stanford, 1995; Kondolf et al., 2006).”
- Connectivity as an emergent property of geomorphic systems (2018, unknown): “River restoration is now the most widely practiced management action explicitly designed to mitigate some of the negative aspects of past human-induced alterations of connectivity (Buijse et al ., 2002; Kondolf et al ., 2006; Magilligan et al ., 2016a).”
- Why Climate Change Makes Riparian Restoration More Important than Ever: Recommendations for Practice and Research (2009, unknown): “In addition, "owing water moves organic material and energy (Ahearn et al. 2006, Kondolf et al. 2006).”
- The hyporheic zone as an invertebrate refuge: a review of variability in space, time, taxa and behaviour (2012, background): “However, anthropogenic deposition of fine sediment and channel modifications that reduce geomorphological complexity threaten theHZ refuge, by impeding hydrologic exchange and by blocking the interstitial pathways upon which refuge use depends (Hancock 2002; Kondolf et al. 2006).”