An assessment of the hydromorphological conditions of the middle and lower Guadalquivir River (southern Spain)

Rinaldi, Massimo; Baena-Escudero, Rafael; Nardi, Laura; Amador, Inmaculada Guerrero; Martínez, Belén García

doi:10.1080/02723646.2019.1653668

Cited by 11 publications

(7 citation statements)

References 22 publications

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“…The focus on reach scale enables catchment-wide evaluation. The method has been tested, evaluated, and improved within Europe and Canada (e.g., [19,26,27,33,34]).…”

Section: Discussionmentioning

confidence: 99%

“…A frequently employed approach that fulfills these specifications is the Morphological Quality Index (MQI), developed by Rinaldi et al (2012) [21], which is based on assessing the hydromorphological situation of stream networks through pressure-response evaluation [25]. It includes geomorphic, process-based approaches and works with indices [26]. The assessment of functionality, artificiality, and channel adjustments can be used to infer ecological quality elements [27].…”

Section: Introductionmentioning

confidence: 99%

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Hydromorphological Assessment as the Basis for Ecosystem Restoration in the Nanxi River Basin (China)

Müller

Hoerbinger

Franta

et al. 2022

Land

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Hydromorphology is a major component of riverine ecosystems. Therefore, proper assessments of the status quo, as well as the detection of pressures in river basins, are of high relevance. Process-based morphological methods have been developed, relying on a broad data basis and resulting in suitable instruments, such as the Morphological Quality Index (MQI). In this study, the hydromorphological status of the Nanxi river system in Eastern China was assessed by an adapted application of the MQI. Adaptations and amendments in the methodical approach were developed in cycles and carried out to transfer the well-approved method for European river systems to another geographical setting. The strengths of the tested approach are the few data requirements, the applicability for modified river basins, and the decoupling of historical information. The assessment of 161 river kilometers resulted in a hydromorphological status quo with the focus being a relative comparison of different sections ranging from “moderate” to “bad”, with an average classification of a “poor” state. On the one hand, the results build the basis for future restoration and river management planning, specifically, and on the other hand, they create a foundation for the development of an assessment method fitted for modified river systems conditions.

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“…The focus on reach scale enables catchment-wide evaluation. The method has been tested, evaluated, and improved within Europe and Canada (e.g., [19,26,27,33,34]).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydromorphological Assessment as the Basis for Ecosystem Restoration in the Nanxi River Basin (China)

Müller

Hoerbinger

Franta

et al. 2022

Land

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“…Furthermore, hydro‐morphologic modelling of partially alluvial channels can reveal the morphologic conditions and habitat suitability of rivers and allow for the assessment of these river types using techniques such as the hydro‐morphologic quality index (HMQI) (e.g. Rinaldi et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Controls of alluvial cover formation, morphology and bedload transport in a sinuous channel with a non‐alluvial boundary

Papangelakis

Welber

Ashmore

et al. 2020

Earth Surf Processes Landf

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The alluvial cover in channels with non‐alluvial beds is a major morphologic feature in these rivers and has important geomorphic and ecologic functions. Although controls on the extent of the alluvial cover have been previously researched, little is known about the role of channel meanders in shaping the three‐dimensional morphology and bedload transport rates in these rivers. Flume experiments were conducted in a fixed‐bed sinuous channel scaled from an engineered urban river. A fully graded sediment supply mixture was fed into the bare channel at rates ranging between 0.3 and 1.2 times the estimated channel capacity under constant discharge. The three‐dimensional morphology and surface texture of the alluvial cover were captured using photogrammetry, and the sediment output was periodically measured and sieved. A stable alluvial cover was achieved under all sediment supply conditions that coincided with a sediment transport equilibrium. The sediment supply rate controlled the final areal extent, mass and volume of the alluvial cover, while cover developed as a periodic series of stable bars ‘fixed’ by the channel planform. The alluvial cover development followed consistent trajectories relative to angular position around bends but developed to a greater degree and higher elevation with increasing sediment supply. The stable cover extent had a logarithmic relationship with the relative sediment supply, while the final mass, volume and bar height had linear relationships. The final channel morphology was characterized by fine‐textured point bars with flat tops and steep margins connected by coarse riffle features. The outside of banks between bend apexes remained bare, even at sediment supply conditions exceeding the channel capacity. The length of the exposed outer banks followed predictable linear relationships with the total cover extent. Insights from this study can provide guidance for the management of channels with non‐alluvial boundaries and provide validation for models of sinuous bedrock channel abrasion. © 2020 John Wiley & Sons, Ltd.

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“…Studies of hydromorphological alterations in rivers and/or their impacts on biodiversity are numerous [33][34][35][36][37][38]; however, few papers explicitly deal with HMWBs and AWBs and use adapted assessment methodologies (e.g., [39]). For example, the Polish hydromorphological assessment methodology presented in Garbowski et al [23] does have lower score thresholds for AWBs, but it does not determine MEP or take into consideration mitigation measures, as we did in this study.…”

Section: Challenges In Assessing Hydromorphological Conditions Of Hmw...mentioning

confidence: 99%

Methodological Framework for Assessing Hydromorphological Conditions of Heavily Modified and Artificial River Water Bodies in Croatia

Pavlek

Plantak²,

Martinić

et al. 2023

Water

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Water Framework Directive (WFD) guidance documents from 2019 provide a comprehensive review of methods and guidelines to improve the comparability of heavily modified water bodies (HMWBs) in the European Union. However, there is currently no common, single methodology for monitoring HMWBs and artificial water bodies (AWBs) or for determining maximum (MEP) and good ecological potential (GEP). This study presents the first assessment of hydromorphological conditions of HMWBs and AWBs in Croatia based on type-specific indicators. The typology of HMWBs and AWBs was based on distinct hydromorphological characteristics and modifications in order to be easily related to the uses of the water bodies. The classes of hydromorphological potential were graded from the theoretical MEP, which was determined by the score scale as the tolerated deviation from natural reference conditions, considering potential mitigation measures. The use of the water body and/or the effects on the wider environment were considered while determining MEP and choosing indicators included in monitoring and assessment. In the case of AWBs, the parameters dependent on natural reference conditions, which are non-existent, were omitted from the assessment. Only 27% of HMWBs and 2 out of 51 AWBs achieved good potential for all three hydromorphological elements. The most significant hydromorphological modifications include channelization, straightening, deepening and removal of riparian vegetation due to flood-protection management practices. In order to achieve the environmental objectives set out by the WFD, the Croatian water management system has to start implementing mitigation measures, especially related to natural flood management.

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An assessment of the hydromorphological conditions of the middle and lower Guadalquivir River (southern Spain)

Cited by 11 publications

References 22 publications

Hydromorphological Assessment as the Basis for Ecosystem Restoration in the Nanxi River Basin (China)

Hydromorphological Assessment as the Basis for Ecosystem Restoration in the Nanxi River Basin (China)

Controls of alluvial cover formation, morphology and bedload transport in a sinuous channel with a non‐alluvial boundary

Methodological Framework for Assessing Hydromorphological Conditions of Heavily Modified and Artificial River Water Bodies in Croatia

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