A systematic review of assessment and conservation management in large floodplain rivers – Actions postponed

Erős, Tibor; Kuehne, Lauren M.; Dolezsai, Anna; Sommerwerk, Nike; Wolter, Christian

doi:10.1016/j.ecolind.2018.11.026

Cited by 49 publications

(28 citation statements)

References 104 publications

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“…Many existing restoration efforts focus on small to medium-sized rivers. Although large floodplain rivers have already been extensively modified in the temperate latitudes and are threatened by projected human alterations in both tropical and high latitudes (e.g., Erӧs et al, 2019), these rivers can be more difficult to restore because of the presence of multiple land owners and jurisdictions, as well as numerous constraints created by infrastructure and consumptive water uses. Nevertheless, larger scale manipulations of river-corridor topography and flow regime designed to restore the hydrologic connectivity that supports river-wetland corridors can be undertaken to beneficial effect, as in the case of the Kissimmee River in Florida, United States (Koebel and Bousquin, 2014).…”

Section: Implications For River Restorationmentioning

confidence: 99%

Rediscovering, Reevaluating, and Restoring Lost River-Wetland Corridors

et al. 2021

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River-wetland corridors form where a high degree of connectivity between the surface (rheic) and subsurface (hyporheic) components of streamflow creates an interconnected system of channels, wetlands, ponds, and lakes. River-wetland corridors occur where the valley floor is sufficiently wide to accommodate a laterally unconfined river planform that may feature morphologically complex, multi-threaded channels with vegetated bars, islands, and floodplains. River-wetland corridors can develop anywhere there is valley expansion along a drainage network, from the headwaters to estuaries or deltas, and they are found across all latitudes and within all biomes and hydroclimates. River-wetland corridors may be longitudinally continuous but are commonly interspersed with single-thread reaches in narrower portions of the valley. The development and persistence of river-wetland corridors is driven by combinations of geologic, biotic, and geomorphic processes that create a river environment that is diverse, heterogeneous, patchy, and dynamically stable, and within which patterns of flow, sediment features, and habitats shift continually. Hence, we describe these polydimensional river corridors as “kaleidoscope rivers.” Historically, river-wetland corridors were pervasive in wide, alluvial valley reaches, but their presence has been so diminished worldwide (due to a diverse range of anthropogenic activities and impacts) that the general public and even most river managers are unaware of their former pervasiveness. Here, we define river-wetland corridors as a river type; review paleoenvironmental and historical records to establish their past ubiquity; describe the geologic, biotic, and geomorphic processes responsible for their formation and persistence; and provide examples of river-wetland corridor remnants that still survive. We close by highlighting the significance of the diverse river functions supported by river-wetland corridors, the consequences of diminution and neglect of this river type, and the implications for river restoration.

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Section: Implications For River Restorationmentioning

confidence: 99%

Rediscovering, Reevaluating, and Restoring Lost River-Wetland Corridors

et al. 2021

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“…As relatively intact floodplain rivers that retain some level of ecological integrity are rare, these globally significant anabranching reaches in the SYR truly warrant recognition in light of recurrent calls for preservation and protection (Er} os, Kuehne, Dolezsai, Sommerwerk, & Wolter, 2019;Tockner & Stanford, 2002). As each reach presently retains an appropriate (expected) level of functionality, management programs that leave the system alone, as far as practicable, support resilient and self-sustaining properties that maintain the functionality and integrity of these systems (Kondolf, 2011;Piégay, Darby, Mosselman, & Surian, 2005).…”

Section: Contemporary River Condition In Maqu Reachmentioning

confidence: 99%

Assessment of the geo‐eco‐hydrological condition of anabranching reaches in the Source Zone of the Yellow River, western China

Han

Brierley

2021

River Research & Apps

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A geo-eco-hydrological approach is developed and applied to assess river condition for three anabranching reaches in the Source Zone of the Yellow River. Building on principles of the River Styles Framework, attributes used to assess river condition are tailored to measure key attributes of the character and behavior for the type of river under consideration. Hydrogeomorphic process linkages with riparian vegetation function are appraised using the Fluvial Biogeomorphic Succession Model for each reach. Reference conditions incorporate measures of river geo-eco-hydrological structural integrity and functional connectivity, relating the expected "best achievable" conditions to prevailing land use practices in these grazing adapted grassland ecosystems. Contemporary conditions closely approximate expected reference conditions in hydro-geomorphic terms. While vegetation interactions function effectively in the active channel zone, they are subject to land use pressures in many floodplain areas. Minimizing impacts of direct anthropogenic disturbance, while promoting passive management practices that support self-sustaining processes, are considered to offer the best prospect to maintain good river condition in these reaches. Major commitment to environmental protection in this area makes this a realistic possibility.The generic approach to analysis of geo-eco-hydrological condition is readily transferable to other situations.

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“…A good quality and the right amount of surface water have been crucial for human well-being and life in general ever since (Water Framework Directive 2000). These two aspects: quality and quantity, are determined to a significant degree by the ecosystems surrounding the water bodies (Dingman 2015;Erős et al 2019;Şandric et al 2019). The quality of water can be impaired by processes within the catchment area.…”

Section: Introductionmentioning

confidence: 99%

The effect of future land use changes on hydrologic ecosystem services: a case study from the Zala catchment, Hungary

2020

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Maintaining and, where possible, improving the ecological status of our water resources are of particular importance for the future. So, one of the main drivers of landscape design must be to protect our waters. In this study, we carried out an evaluation of four hydrologic ecosystem services (HES) in the Zala River catchment area, the largest tributary of Lake Balaton (more than half of the lake’s surface inflow comes from the Zala River), Hungary. The lake has great ecological, economic and social importance to the country. We used the cell-based InVEST model to quantify the spatial distribution of flood control, erosion control and nutrient retention ecosystem services for phosphorus and nitrogen; then, we carried out an aggregated evaluation. Thereby, we localized the hot spots of service delivery and tested the effect of focused land use changes in critical areas of low performance on the examined four HES. Forests proved to have the best aggregated result, while croplands near the stream network performed poorly. The modelled change in land use resulted in significant improvement on nutrient filtration and moderate to minimal but improving change for the other HES in most cases. The applied method is suitable as a supporting tool at the watershed level for decision-makers and landscape designers with the aim of protecting water bodies.

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A systematic review of assessment and conservation management in large floodplain rivers – Actions postponed

Cited by 49 publications

References 104 publications

Rediscovering, Reevaluating, and Restoring Lost River-Wetland Corridors

Rediscovering, Reevaluating, and Restoring Lost River-Wetland Corridors

Assessment of the geo‐eco‐hydrological condition of anabranching reaches in the Source Zone of the Yellow River, western China

The effect of future land use changes on hydrologic ecosystem services: a case study from the Zala catchment, Hungary

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