Restoring functional riparian ecosystems: concepts and applications

Boudell, Jere A.; Dixon, Mark D.; Rood, Stewart B.; Stromberg, Juliet C.

doi:10.1002/eco.1664

Cited by 18 publications

(9 citation statements)

References 59 publications

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“…The study of interactions between water resources and their surrounding ecosystems, known as ecohydrology, is a critical component of evaluating and conserving ecosystem services (Rodriguez-Iturbe 2000;Braumen et al 2007;Grygoruk and Acreman 2015). Of particular interest, riparian and floodplain ecosystems provide many critical ecosystem services, ranging from increased biodiversity (Naiman et al 1993;Harding et al 1998), flood peak attenuation (Sheaffer et al 2002), and biogeochemical processing of reactive solutes (Scott et al 2014;Boudell et al 2015). While riparian zones and floodplains have been studied extensively (e.g., Tockner and Stanford 2002), much of our understanding is based on coarse resolution observations in both spatial and temporal domains (Kirchner et al 2004).…”

mentioning

confidence: 99%

A cost-effective image processing approach for analyzing the ecohydrology of river corridors

Keys

Jones

Scott

et al. 2016

Limnol. Oceanogr. Methods

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There is currently a need for robust, high‐resolution monitoring techniques to assess and quantify ecosystem dynamics within surface water bodies and their riparian ecosystems. This study presents a cost effective, user‐friendly technique for examining the ecohydrology of stream and river corridors through the use of digital imagery. Using a simple digital camera, we captured hourly images of a small portion of a headwater Appalachian stream and adjacent floodplain. Then, we used pixel classification techniques to evaluate ecohydrologic parameters (e.g., inundation surface area, floodplain wetness, and vegetation dynamics) in each image. Results highlight the episodic nature of river floodplain connectivity, variation in surface wetness across the gradient from river to upland ecosystems, and the seasonal variability of vegetation density and health. To validate the accuracy of image‐based measurements, we then compared inundation area estimates to an existing inundation model and found a high level of agreement (R2 = 0.94; NRMSE = 7.96%). Our study highlights the use of time‐lapse imagery as a robust, cost‐effective method to capture the dynamics of river corridors and associated ecosystem services.

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mentioning

confidence: 99%

A cost-effective image processing approach for analyzing the ecohydrology of river corridors

Keys

Jones

Scott

et al. 2016

Limnol. Oceanogr. Methods

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“…In particular, riparian zone adjustment requires the development of riparian vegetation to interact with river processes (Gurnell, ). Thus, the longer‐term development of the riparian zone is important and needs to be considered within the remit of process‐based restoration (Boudell et al, ).…”

Section: Discussionmentioning

confidence: 99%

Restoration of a chalk stream using wood: assessment of habitat improvements using the Modular River Survey

England

Dobbek

Leeming

et al. 2019

Water & Environment J

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The installation of large wood and sediment berms to narrow the overwide channel of the River Bulbourne, Hertfordshire, aimed to restore geomorphological processes, improve channel habitat diversity and increase the amenity value of the park in which the river is located. The Modular River Survey provides a framework and suite of tools for river managers and volunteers to monitor and assess restoration activities. Applying this technique to the River Bulbourne before and after restoration demonstrated that the works increased physical habitat and vegetation complexity. The restored section was narrowed, substrate composition changed and the range of in-stream vegetation morphotypes increased. The initial slight improvement in riparian habitat complexity immediately following the restoration is expected to increase further over time as the riparian vegetation develops and the restored section of channel matures. A public perception and recreational use survey reviewed how visitor experience and use of the park changed following restoration.

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“…Because success criteria are thus dependent on the condition of the reference site, it is critical to choose reference sites that experience environmental conditions similar to the restored site (Ehrenfeld, 2000a,b). Watershed urbanization or agricultural development may impose landscape constraints on ecosystem components that cannot be overcome through restoration (e.g., Boudell et al, 2015). For this reason, it is unrealistic to expect that restored tidal freshwater wetlands in urbanized landscapes with, for example, high sediment loads, flashy hydrology, fragmented wetlands, and abundant nonnative species will closely resemble those of nonurban landscapes (Baldwin, 2004).…”

Section: Evaluation Criteria For Restored Tidal Freshwater Wetlandsmentioning

confidence: 99%

Evaluating Restored Tidal Freshwater Wetlands

2019

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Tidal freshwater wetlands are recognized as highly productive coastal wetlands that support diverse assemblages of plants and animals and complex biogeochemical cycles (in this book, see Chapter 18 by Whigham et al. and Chapter 19 by Megonigal and Neubauer). Many tidal freshwater wetlands and their associated ecosystem services have been damaged or destroyed by urbanization, agriculture, and other human activities (Baldwin, 2004; Barendregt et al., 2006). Increasing recognition of the value of remaining wetlands and environmental regulations requiring wetland mitigation (i.e., enhancement, creation, or restoration of wetlands to compensate for wetland losses; Kentula, 2000) has driven the restoration of all types of wetlands, including tidal freshwater wetlands. These restoration projects have been increasingly studied by restoration ecologists, with the overarching goal of improving restoration approaches. In this chapter, we first review characteristics of restored tidal freshwater wetlands in North America and Eurasia, where most studies have been done, including their distribution, general construction methods, and motivating factors for restoration (Section 2). Then we present criteria for evaluating tidal freshwater wetland restoration projects (Section 3). Next we describe a case study of restored tidal freshwater wetlands in the Anacostia River watershed in Washington, DC, USA (Section 4). Finally, we provide conclusions and recommendations to increase the successful restoration of tidal freshwater wetlands (Section 5).

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Restoring functional riparian ecosystems: concepts and applications

Cited by 18 publications

References 59 publications

A cost-effective image processing approach for analyzing the ecohydrology of river corridors

A cost-effective image processing approach for analyzing the ecohydrology of river corridors

Restoration of a chalk stream using wood: assessment of habitat improvements using the Modular River Survey

Evaluating Restored Tidal Freshwater Wetlands

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