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Knox RL, Wohl EE, Morrison RR. Levees don't protect, they disconnect: A critical review of how artificial levees impact floodplain functions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155773. [PMID: 35537517 DOI: 10.1016/j.scitotenv.2022.155773] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/26/2022] [Accepted: 05/04/2022] [Indexed: 06/14/2023]
Abstract
Despite the recognition of floodplain importance in the scientific community, floodplains are not afforded the same legal protection as river channels. In the United States alone, flood-related economic losses were much higher in the second half of the 20th century than the first half despite the expenditure of billions of dollars on flood defenses. Partially to blame are the low appraisal and understanding of human impacts to floodplain functions. Here, we explore the impacts of levees on floodplain functions and analyze case studies of floodplain restoration through levee removal. Floodplain functions include (1) fluxes of water, solutes, and particulate materials; (2) enhanced spatial heterogeneity of hydrology and biogeochemistry; (3) enhanced habitat abundance and diversity; (4) enhanced biomass and biodiversity; and (5) hazard mitigation. Case studies of floodplain restoration involving artificial levee adjustment are heavily concentrated in North America, Europe, and Japan, and those case studies assess floodplain functions within 30 years of restoration. In the United States, restoration through levee removal comprises less than 1% of artificial levee length and 1-2% of disconnected floodplains. In Europe, restoration effectiveness was severely limited by upstream flow regulation. Most case studies were impacted by stressors outside the study site and took place in lowland alluvial rivers. Reconfiguration was successful at achieving limited aims while reconnection set floodplains on a trajectory to more fully restore floodplain functions. Case studies illustrated the tension between restoration scale and study resolution in time and space as well as the role of site-specific characteristics in determining restoration outcomes. Numerous knowledge gaps surrounding the integrative relationships between floodplain functions must be addressed in future studies. The ubiquity of flow regulation demands that future floodplain restoration occur in a whole-of-basin manner. Monitoring of restoration must take place for longer periods of time and include multiple functions.
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Affiliation(s)
- Richard L Knox
- Department of Geosciences, Colorado State University, Fort Collins, CO, USA.
| | - Ellen E Wohl
- Department of Geosciences, Colorado State University, Fort Collins, CO, USA
| | - Ryan R Morrison
- Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO, USA
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2
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Biophysical Heterogeneity, Hydrologic Connectivity, and Productivity of a Montane Floodplain Forest. Ecosystems 2022. [DOI: 10.1007/s10021-022-00769-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Mandal MH, Roy A, Siddique G. A geographical assessment of Chariganga and Arpara Beel (wetlands) of Nadia, West Bengal as a habitat of wetland birds. JOURNAL OF THREATENED TAXA 2021. [DOI: 10.11609/jott.6257.13.13.19964-19975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The present study attempts to assess the impact of human intervention on the population, distribution, and habitat perspectives of the water birds found in and around Chariganga and Arpara ‘Beel’ wetlands, leftover channels of the River Bhagirathi. The point count method was adopted during field surveys conducted from April 2019 to March 2020. These wetlands are the natural habitats for 37 species of wetland birds belonging to 18 families and 11 orders, of which 26 species are residents, three are summer migrants, and eight are winter immigrants. The wetlands also harbour 10 bird species whose population is globally declining over the last few decades. Relative Diversity index unveils that among waterfowls Ardeidae is the dominant family. Species richness reaches its peak in winter, and is least during the monsoon. Empirical observation documented one Vulnerable (Greater Adjutant) and one Near Threatened (Black-Headed Ibis) species residing on the banks and adjoining paddy fields. Indiscriminate extraction of wetland products by local people, along with agricultural expansion towards the waterfront of the wetlands, has deteriorated the health of those wetlands and threatened the existence of waterbirds, especially shorebirds. Populations of 22 species living in water edge areas has changed conspicuously owing to cultural and economic activities of neighboring human groups. We suggest improving the ecological balance of the wetlands and restraining further degradation through proper management to preserve avian diversity.
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4
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Rohde MM, Stella JC, Roberts DA, Singer MB. Groundwater dependence of riparian woodlands and the disrupting effect of anthropogenically altered streamflow. Proc Natl Acad Sci U S A 2021; 118:e2026453118. [PMID: 34161277 PMCID: PMC8237578 DOI: 10.1073/pnas.2026453118] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Riparian ecosystems fundamentally depend on groundwater, especially in dryland regions, yet their water requirements and sources are rarely considered in water resource management decisions. Until recently, technological limitations and data gaps have hindered assessment of groundwater influences on riparian ecosystem health at the spatial and temporal scales relevant to policy and management. Here, we analyze Sentinel-2-derived normalized difference vegetation index (NDVI; n = 5,335,472 observations), field-based groundwater elevation (n = 32,051 observations), and streamflow alteration data for riparian woodland communities (n = 22,153 polygons) over a 5-y period (2015 to 2020) across California. We find that riparian woodlands exhibit a stress response to deeper groundwater, as evidenced by concurrent declines in greenness represented by NDVI. Furthermore, we find greater seasonal coupling of canopy greenness to groundwater for vegetation along streams with natural flow regimes in comparison with anthropogenically altered streams, particularly in the most water-limited regions. These patterns suggest that many riparian woodlands in California are subsidized by water management practices. Riparian woodland communities rely on naturally variable groundwater and streamflow components to sustain key ecological processes, such as recruitment and succession. Altered flow regimes, which stabilize streamflow throughout the year and artificially enhance water supplies to riparian vegetation in the dry season, disrupt the seasonal cycles of abiotic drivers to which these Mediterranean forests are adapted. Consequently, our analysis suggests that many riparian ecosystems have become reliant on anthropogenically altered flow regimes, making them more vulnerable and less resilient to rapid hydrologic change, potentially leading to future riparian forest loss across increasingly stressed dryland regions.
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Affiliation(s)
- Melissa M Rohde
- Graduate Program in Environmental Science, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210;
- California Water Program, The Nature Conservancy, Sacramento, CA 95811
| | - John C Stella
- Department of Sustainable Resources Management, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210
| | - Dar A Roberts
- Department of Geography, University of California, Santa Barbara, CA 93106
| | - Michael Bliss Singer
- School of Earth and Environmental Sciences, Cardiff University, CF10 3AT Cardiff, United Kingdom
- Water Research Institute, Cardiff University, CF10 3AX Cardiff, United Kingdom
- Earth Research Institute, University of California, Santa Barbara, CA 93106
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5
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Janssen P, Stella JC, Räpple B, Gruel CR, Seignemartin G, Pont B, Dufour S, Piégay H. Long-term river management legacies strongly alter riparian forest attributes and constrain restoration strategies along a large, multi-use river. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111630. [PMID: 33213995 DOI: 10.1016/j.jenvman.2020.111630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/17/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
Many terrestrial ecosystems have undergone profound transformation under the pressure of multiple human stressors. This may have oriented altered ecosystems toward transient or new states. Understanding how these cumulative impacts influence ecosystem functions, services and ecological trajectories is therefore essential to defining effective restoration strategies. This is particularly the case in riverine ecosystems, where the profound alteration of natural disturbance regimes can make the effectiveness of restoration operations questionable. Using the case study of legacy dike fields, i.e., area delimited by longitudinal and lateral dikes, along the regulated Rhône River, we studied the impacts of long-term channelization and flow regulation on environmental conditions and riparian forests attributes along a 200 km climatic gradient. We characterized the imprint of human stressors on these forests by comparing the dike field stands to more natural stands in both young and mature vegetation stages. Across four reaches of the river between Lyon and the Mediterranean Sea, we found that channelization consistently promoted high rate of overbank sedimentation and rapid disconnection of dike field surfaces from the channel. The rapid terrestrialisation of dike field surfaces, i.e., the process by which former aquatic areas transition to a terrestrial ecosystem as a result of dewatering or sedimentation, fostered a pulse of riparian forest regeneration in these resource-rich environments that differs from more natural sites in structure and composition. Within the dike fields, older pre-dam stands are dominated by post-pioneer and exotic species, and post-dam stands support large, aging pioneer trees with a largely exotic understory regeneration layer. These patterns were associated with differences in the relative surface elevation among dike fields, whereas species shifts generally followed the river's longitudinal climate gradient. To enhance the functionality of these human-made ecosystems, restoration strategies should target the reconnection of dike fields to the river by dismantling part of the dikes to promote lateral erosion, forest initiation and community succession, as well as increasing minimum flows in channels to improve connection with groundwater. However, since a river-wide return to a pre-disturbance state is very unlikely, a pragmatic approach should be favoured, focusing on local actions that can improve abiotic and biotic function, and ultimately enhancing ecosystem services such biodiversity, habitat, and recreation opportunities.
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Affiliation(s)
- Philippe Janssen
- Univ. Lyon, UMR 5600 Environnement Ville Société, CNRS, Site of ENS Lyon, Lyon, France; Univ. Grenoble Alpes, INRAE, LESSEM, St-Martin-d'Hères, France.
| | - John C Stella
- Department of Sustainable Resources Management, State University of New York College of Environmental Science and Forestry, Syracuse, NY, USA.
| | - Bianca Räpple
- Univ. Lyon, UMR 5600 Environnement Ville Société, CNRS, Site of ENS Lyon, Lyon, France.
| | - Charles-Robin Gruel
- Univ. Lyon, UMR 5600 Environnement Ville Société, CNRS, Site of ENS Lyon, Lyon, France; Asian School of the Environment, Nanyang Technological University, Singapore.
| | | | - Bernard Pont
- Réserves Naturelles de France, Quétigny, France.
| | | | - Hervé Piégay
- Univ. Lyon, UMR 5600 Environnement Ville Société, CNRS, Site of ENS Lyon, Lyon, France.
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6
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Diehl RM, Wilcox AC, Stella JC. Evaluation of the integrated riparian ecosystem response to future flow regimes on semiarid rivers in Colorado, USA. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 271:111037. [PMID: 32778317 DOI: 10.1016/j.jenvman.2020.111037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/06/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Riparian ecosystems are shaped by interactions among streamflow, plants, and physical processes. Sustaining functioning riparian ecosystems in the face of climate change, growing human demands for water, and increasing water scarcity requires improved understanding of the sensitivity of riparian ecosystems to shifts in flow regimes and associated adaptive management strategies. We applied projected future flow regimes to an ecogeomorphic model of riparian and channel response to evaluate these interactions. We tested the hypothesis that components of the riparian ecosystem vary in their vulnerabilities to shifts in flow attributes and that changes in the representation of functional groups of plants result from interactions between ecological and physical drivers. Using the Yampa and Green Rivers in northwestern Colorado as our test system, we investigated ecogeomorphic response to (1) synthetic flow regimes representing continuous changes from baseline flows; and (2) future flow scenarios that incorporate changing climate, demand, and water-resource projects. For this region, we showed that riparian plant presence, composition, and cover are highly sensitive to the high flows that occur early in the growing season, but that shifts to low flows are also important, especially for determining the functional diversity of a riparian community. Future flow regimes are likely to induce vegetation encroachment on lower channel surfaces and to increase plant cover, which will be dominated by fewer functional groups. In particular, we predict a decrease in some mesic plants (shrubs and tall herbs) and an increase in presence and cover of late-seral, xeric shrubs, most of which are non-native species. Managing for high flows that occur early in the growing season must complement maintenance of adequate baseflows to maintain ecosystem functioning in the face of hydrologic alterations induced by climate change and human water demand.
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Affiliation(s)
- Rebecca M Diehl
- Department of Geography, University of Vermont, Burlington, VT, 05405, USA; Department of Geosciences, University of Montana, Missoula, MT, 59812, USA.
| | - Andrew C Wilcox
- Department of Geosciences, University of Montana, Missoula, MT, 59812, USA
| | - John C Stella
- Department of Forest and Natural Resource Management, SUNY ESF, Syracuse, NY, 13210, USA
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7
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Weisscher SAH, Shimizu Y, Kleinhans MG. Upstream perturbation and floodplain formation effects on chute-cutoff-dominated meandering river pattern and dynamics. EARTH SURFACE PROCESSES AND LANDFORMS 2019; 44:2156-2169. [PMID: 31598027 PMCID: PMC6774324 DOI: 10.1002/esp.4638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 04/04/2019] [Accepted: 04/11/2019] [Indexed: 06/10/2023]
Abstract
A sustained dynamic inflow perturbation and bar-floodplain conversion are considered crucial to dynamic meandering. Past experiments, one-dimensional modelling and linear theory have demonstrated that the initiation and persistence of dynamic meandering require a periodic transverse motion of the inflow. However, it remains unknown whether the period of the inflow perturbation affects self-formed meander dynamics. Here, we numerically study the effect of the inflow perturbation period on the development and meander dynamics of a chute-cutoff-dominated river, which requires two-dimensional modelling with vegetation forming floodplain on bars. We extended the morphodynamic model Nays2D with growth and mortality rules of vegetation to allow for meandering. We tested the effect of a transversely migrating inflow boundary by varying the perturbation period between runs over an order of magnitude around typical modelled meander periods. Following the cutoff cascade after initial meander formation from a straight channel, all runs with sufficient vegetation show series of growing meanders terminated by chute cutoffs. This generates an intricate channel belt topography with point bar complexes truncated by chutes, oxbow lakes, and scroll-bar-related vegetation age patterns. The sinuosity, braiding index and meander period, which emerge from the inherent biomorphological feedback loops, are unrelated to the inflow perturbation period, although the spin-up to dynamic equilibrium takes a longer time and distance for weak and absent inflow perturbations. This explains why, in previous experimental studies, dynamic meandering was only accomplished with a sustained upstream perturbation in flumes that were short relative to the meander wavelength. Our modelling of self-formed meander patterns is evidence that scroll-bar-dominated and chute-cutoff-dominated meanders develop from downstream convecting instabilities. This insight extends to many more fluvial, estuarine and coastal systems in morphological models and experiments, which require sustained dynamic perturbations to form complex patterns and develop natural dynamics. © 2019 The Authors. Earth Surface Processes and Landforms Published by John Wiley & Sons Ltd.
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Affiliation(s)
| | - Yasuyuki Shimizu
- Faculty of EngineeringHokkaido UniversityNorth 13, West 8, Kitaku, SapporoHokkaido080‐8628Japan
| | - Maarten G. Kleinhans
- Faculty of GeosciencesUtrecht UniversityPrincetonlaan 8AUtrecht3584CBThe Netherlands
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8
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Beaver-generated disturbance extends beyond active dam sites to enhance stream morphodynamics and riparian plant recruitment. Sci Rep 2019; 9:8124. [PMID: 31148552 PMCID: PMC6544642 DOI: 10.1038/s41598-019-44381-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 04/25/2019] [Indexed: 11/21/2022] Open
Abstract
Given the direct effects of their dams on hydrology, sediment storage, and vegetation, beaver are widely acknowledged as ecosystem engineers. Here we explore the effects of beaver activity on channel processes and riparian plant recruitment beyond those dams and after dam abandonment in southwestern Montana, USA. Willow cuttings from beaver herbivory are commonly deposited along point bars, adding roughness and promoting sediment accumulation. Most cuttings are found <1 km downstream of an active dam. These cuttings often sprout, aiding in willow colonization and bar stabilization. Thirty-four radiocarbon ages show that beaver cuttings have accumulated by similar processes over thousands of years, adding to floodplain carbon storage. Breached dams can initiate meanders, increasing channel and riparian habitat diversity. Beaver activity thus generates a cycle of frequent disturbance, from dam building and riparian plant browsing through dam failure and abandonment, with each phase influencing channel and floodplain evolution and riparian plant recruitment.
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9
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Volke MA, Johnson WC, Dixon MD, Scott ML. Emerging reservoir delta‐backwaters: biophysical dynamics and riparian biodiversity. ECOL MONOGR 2019. [DOI: 10.1002/ecm.1363] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Malia A. Volke
- Department of Natural Resource Management South Dakota State University SNP 138 Box 2140B Brookings South Dakota 57007 USA
| | - W. Carter Johnson
- Department of Natural Resource Management South Dakota State University SNP 138 Box 2140B Brookings South Dakota 57007 USA
| | - Mark D. Dixon
- Department of Biology University of South Dakota 414 E. Clark Street Vermillion South Dakota 57069 USA
| | - Michael L. Scott
- Watershed Sciences Department Utah State University 5210 Old Main Hill, NR 210 Logan Utah 84322 USA
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10
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Dufour S, Rodríguez-González PM, Laslier M. Tracing the scientific trajectory of riparian vegetation studies: Main topics, approaches and needs in a globally changing world. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 653:1168-1185. [PMID: 30759557 DOI: 10.1016/j.scitotenv.2018.10.383] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/22/2018] [Accepted: 10/28/2018] [Indexed: 06/09/2023]
Abstract
Riparian vegetation is a crucial component of fluvial systems and serves multiple socio-ecological functions. The objective of this review is to follow the scientific trajectory of studies of riparian vegetation throughout history and across regions and fields of knowledge. Such a synthesis is challenging because riparian vegetation is an open co-constructed socio-ecological system at the crossroads of the biosphere, hydrosphere, lithosphere, atmosphere and anthroposphere; thus, it exhibits a wide range of ecological patterns and functioning depending on climatic, morphological and land-use contexts. To address this, we used qualitative and quantitative approaches in our review of the scientific literature. From the scientific perspective, how riparian vegetation is studied has changed over time (e.g. development of modeling and geomatic approaches) and varies among fluvial systems and geographic areas (e.g. its relation to groundwater is usually studied more in Oceania and Asia than on other continents). This review revealed the lack of a single and well-identified scientific community that focuses on riparian vegetation. This is probably due to the nature of the subject, which includes diverse fields of knowledge and several applied issues: biodiversity, forestry, water quality, hydromorphology, restoration, ecology, etc. Some topics are actively regenerated (e.g. biogeomorphological approaches) and others are emerging, which reflects general trends in ecology (e.g. functional approaches). The literature review indicates that a substantial amount of knowledge already exists; therefore, a major priority of our study is to produce a clear and integrative understanding of riparian zone functioning to address the inherent complexity of these zones and remain valid across a wide diversity of geographical contexts. It is also essential to develop detailed analysis of the sociocultural dimension of riparian vegetation to understand the ecology of riparian zones and to improve riparian vegetation management according to local recommendations in order to maintain and improve its functions and services in the face of global changes.
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Affiliation(s)
- Simon Dufour
- Université Rennes 2, CNRS UMR LETG, Place Le Moal, 35000 Rennes, France.
| | | | - Marianne Laslier
- Université Rennes 2, CNRS UMR LETG, Place Le Moal, 35000 Rennes, France
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11
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González E, Martínez-Fernández V, Shafroth PB, Sher AA, Henry AL, Garófano-Gómez V, Corenblit D. Regeneration of Salicaceae riparian forests in the Northern Hemisphere: A new framework and management tool. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 218:374-387. [PMID: 29704833 DOI: 10.1016/j.jenvman.2018.04.069] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/09/2018] [Accepted: 04/15/2018] [Indexed: 06/08/2023]
Abstract
Human activities on floodplains have severely disrupted the regeneration of foundation riparian shrub and tree species of the Salicaceae family (Populus and Salix spp.) throughout the Northern Hemisphere. Restoration ecologists initially tackled this problem from a terrestrial perspective that emphasized planting. More recently, floodplain restoration activities have embraced an aquatic perspective, inspired by the expanding practice of managing river flows to improve river health (environmental flows). However, riparian Salicaceae species occupy floodplain and riparian areas, which lie at the interface of both terrestrial and aquatic ecosystems along watercourses. Thus, their regeneration depends on a complex interaction of hydrologic and geomorphic processes that have shaped key life-cycle requirements for seedling establishment. Ultimately, restoration needs to integrate these concepts to succeed. However, while regeneration of Salicaceae is now reasonably well-understood, the literature reporting restoration actions on Salicaceae regeneration is sparse, and a specific theoretical framework is still missing. Here, we have reviewed 105 peer-reviewed published experiences in restoration of Salicaceae forests, including 91 projects in 10 world regions, to construct a decision tree to inform restoration planning through explicit links between the well-studied biophysical requirements of Salicaceae regeneration and 17 specific restoration actions, the most popular being planting (in 55% of the projects), land contouring (30%), removal of competing vegetation (30%), site selection (26%), and irrigation (24%). We also identified research gaps related to Salicaceae forest restoration and discuss alternative, innovative and feasible approaches that incorporate the human component.
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Affiliation(s)
- Eduardo González
- Department of Biology, Colorado State University, 80523, Fort Collins, CO, USA; Department of Biological Sciences, University of Denver, 80208-9010, Denver, CO, USA.
| | - Vanesa Martínez-Fernández
- Department of Natural Systems and Resources, E.T.S. Ingeniería de Montes, Forestal y del Medio Natural, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Patrick B Shafroth
- Fort Collins Science Center, U.S. Geological Survey, 80526 Fort Collins, CO, USA
| | - Anna A Sher
- Department of Biological Sciences, University of Denver, 80208-9010, Denver, CO, USA
| | - Annie L Henry
- Department of Biological Sciences, University of Denver, 80208-9010, Denver, CO, USA
| | - Virginia Garófano-Gómez
- Institut d'Investigació per a la Gestió Integrada de Zones Costaneres (IGIC), Universitat Politècnica de València, Paranimf 1, 46730 Grau de Gandia, València, Spain; Université Clermont Auvergne, CNRS, GEOLAB, F-63000 Clermont-Ferrand, France
| | - Dov Corenblit
- Université Clermont Auvergne, CNRS, GEOLAB, F-63000 Clermont-Ferrand, France
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12
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Hortobágyi B, Corenblit D, Vautier F, Steiger J, Roussel E, Burkart A, Peiry JL. A multi-scale approach of fluvial biogeomorphic dynamics using photogrammetry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 202:348-362. [PMID: 27604752 DOI: 10.1016/j.jenvman.2016.08.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 08/05/2016] [Accepted: 08/25/2016] [Indexed: 06/06/2023]
Abstract
Over the last twenty years, significant technical advances turned photogrammetry into a relevant tool for the integrated analysis of biogeomorphic cross-scale interactions within vegetated fluvial corridors, which will largely contribute to the development and improvement of self-sustainable river restoration efforts. Here, we propose a cost-effective, easily reproducible approach based on stereophotogrammetry and Structure from Motion (SfM) technique to study feedbacks between fluvial geomorphology and riparian vegetation at different nested spatiotemporal scales. We combined different photogrammetric methods and thus were able to investigate biogeomorphic feedbacks at all three spatial scales (i.e., corridor, alluvial bar and micro-site) and at three different temporal scales, i.e., present, recent past and long term evolution on a diversified riparian landscape mosaic. We evaluate the performance and the limits of photogrammetric methods by targeting a set of fundamental parameters necessary to study biogeomorphic feedbacks at each of the three nested spatial scales and, when possible, propose appropriate solutions. The RMSE varies between 0.01 and 2 m depending on spatial scale and photogrammetric methods. Despite some remaining difficulties to properly apply them with current technologies under all circumstances in fluvial biogeomorphic studies, e.g. the detection of vegetation density or landform topography under a dense vegetation canopy, we suggest that photogrammetry is a promising instrument for the quantification of biogeomorphic feedbacks at nested spatial scales within river systems and for developing appropriate river management tools and strategies.
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Affiliation(s)
- Borbála Hortobágyi
- Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, BP 10448, 63000, Clermont-Ferrand, France; CNRS, UMR 6042, GEOLAB - Laboratoire de géographie physique et environnementale, 63057, Clermont-Ferrand, France.
| | - Dov Corenblit
- Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, BP 10448, 63000, Clermont-Ferrand, France; CNRS, UMR 6042, GEOLAB - Laboratoire de géographie physique et environnementale, 63057, Clermont-Ferrand, France
| | - Franck Vautier
- Université Clermont Auvergne, Université Blaise Pascal, Maison des Sciences de l'Homme, BP 10448, 63000, Clermont-Ferrand, France; CNRS, USR 3550, MSH, 63057, Clermont-Ferrand, France
| | - Johannes Steiger
- Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, BP 10448, 63000, Clermont-Ferrand, France; CNRS, UMR 6042, GEOLAB - Laboratoire de géographie physique et environnementale, 63057, Clermont-Ferrand, France
| | - Erwan Roussel
- Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, BP 10448, 63000, Clermont-Ferrand, France; CNRS, UMR 6042, GEOLAB - Laboratoire de géographie physique et environnementale, 63057, Clermont-Ferrand, France
| | - Andreas Burkart
- Forschungszentrum Jülich, Institute of Bio- and Geosciences, IBG-2: Plant Sciences, 52428, Jülich, Germany
| | - Jean-Luc Peiry
- Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, BP 10448, 63000, Clermont-Ferrand, France; CNRS, UMR 6042, GEOLAB - Laboratoire de géographie physique et environnementale, 63057, Clermont-Ferrand, France
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13
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Andersen DC, Adair EC, Nelson SM, Binkley D. Can Nitrogen Fertilization Aid Restoration of Mature Tree Productivity in Degraded Dryland Riverine Ecosystems? Restor Ecol 2014. [DOI: 10.1111/rec.12104] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Douglas C. Andersen
- U. S. Geological Survey; Fort Collins Science Center; 2150 Centre Avenue, Building C Fort Collins CO 80526 U.S.A
| | - Elizabeth Carol Adair
- Rubenstein School of Environment and Natural Resources; University of Vermont; 81 Carrigan Drive Burlington VT 05405 U.S.A
| | | | - Dan Binkley
- Department of Ecosystem Science and Sustainability, and Natural Resource Ecology Laboratory; Colorado State University; Fort Collins CO 80521 U.S.A
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