River Research and Applications最新文献

{"title":"Towards Holistic Braided River Management: The Interface of Geomorphology, Hydrology, Ecology and Economics","authors":"Clare Wilkinson, Richard Measures, Jo Hoyle, Peter R. Tait, John Saunders, Scott R. Wilson","doi":"10.1002/rra.70073","DOIUrl":"https://doi.org/10.1002/rra.70073","url":null,"abstract":"ABSTRACT Braided rivers are some of the most dynamic and complex river systems in the world. They provide unique habitat to rare species, supply natural resources, and act as a source of groundwater recharge. However, they can also pose significant flooding and erosion hazards. Current management of braided rivers in Aotearoa New Zealand faces a strong need to balance competing values and interests. In this research, we explore the hydrological and ecological benefits of changing river bed levels and widths in the main groundwater recharge reaches of two braided rivers, and assess the market and non‐market costs and benefits associated with those changes to explore alternative management approaches. Theoretical width and bed level scenarios were developed for two case study reaches: the Ngaruroro River (Hawke's Bay region) and the Wairau River (Marlborough region). This study indicates, in general, that widening braided rivers has benefits for aquatic ecology and groundwater recharge, and that lowering bed levels can have costly impacts on ecology and groundwater that exceed economic benefits associated with aggregate extraction. This study contributes to the growing body of research aiming to quantify possible economic benefits of alternative river management and restoration approaches.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"42 2","pages":"415-431"},"PeriodicalIF":0.0,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rra.70073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of MICP in ameliorating erosion resistance of soil on reservoir banks","authors":"Hua-Jie Geng, Weiquan Zhao, Xiaodong Yang, Hongbo Zha, Yipin Wang","doi":"10.1002/rvr2.70027","DOIUrl":"https://doi.org/10.1002/rvr2.70027","url":null,"abstract":"Abstract Regulating reservoirs with clay slopes are prone to severe erosion caused by wind‐wave actions and water‐level fluctuations. Conventional bank protection methods often rely on rigid structures, which can adversely affect ecosystems. This study explores the use of microbially induced carbonate precipitation (MICP) for soil stabilization to enhance the erosion resistance of clay slopes and support plant growth. Through unconfined compressive strength (UCS) tests and seed germination trials, an optimal MICP treatment formula was identified. Using calcium acetate as the calcium source, with a cementation solution concentration of 0.5 mol/L and a reagent dosage of 23%, the UCS increased by 235.3% (from 20.5 to 68.7 kPa). Euphrasia pectinate Ten and Sesbania cannabina were found to be suitable plant species for MICP‐treated soil, achieving germination rates of 45% and 30%, respectively. Disintegration and wave erosion tests demonstrated that the disintegration rate of MICP‐treated specimens decreased from 23.1% to 0%, and the erosion mass rate decreased from 1.5% to 0.2%. Field tests further validated the effectiveness of MICP, with treated slopes exhibiting no erosion and demonstrating penetration and shear strengths of 47.9 kPa and 114.5 kPa, respectively—2.5 and 3.2 times higher than those of untreated slopes. The MICP process facilitates calcium carbonate deposition, reduces pore space, and enhances interparticle bonding. Calcium carbonate crystals derived from calcium acetate exhibited stronger adhesion than those formed from calcium chloride. Filamentous organic matter was closely adhered between soil particles, further enhancing the ductility and resistance to hydraulic erosion. Additionally, acetate ions reduce MICP toxicity to plants and enhance microbial activity and nutrient cycling, creating more favorable conditions for plant growth.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"4 4","pages":"445-461"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differences in Native and Invasive Fish Larval Occupancy and Detection Probabilities in the Upper Mississippi River","authors":"David J. Yff, Michael J. Weber","doi":"10.1002/rra.4441","DOIUrl":"https://doi.org/10.1002/rra.4441","url":null,"abstract":"ABSTRACT The Upper Mississippi River (UMR) represents one invasion front for bigheaded carps Hypopthalmichthys spp. in North America. Agencies often sample larvae to determine the conditions under which bigheaded carp reproduction occurs, but the ability of conventional ichthyoplankton sampling to detect bigheaded carp reproduction compared to native fishes is unknown. We used occupancy models to estimate larval bigheaded carp and native fish larvae detection probabilities and assessed how habitat type, Julian date, river discharge, and water temperature affect occupancy. We sampled larvae in Pools 18–20 of the UMR every 10 days at the Iowa, Skunk, and Des Moines River confluences in backwater, side channel, and thalweg habitats. Detection probabilities increased with water volume filtered and were lower for larval bigheaded carp than freshwater drum, clupeids, and percids. Freshwater drum and bigheaded carp larvae had higher detection in thalweg and channel margin habitats compared to backwaters. Occupancy of bigheaded carp peaked on June 19 at 20°C, increased with discharge, and declined with the coefficient of variation (CV) of water temperature and discharge. Clupeids and percids occupancy peaked on May 24 and increased with CV of water temperature, while occupancy of freshwater drum peaked on July 3, decreased with CV of water temperature, and increased with water temperature. Our results indicate bigheaded carp are more difficult to detect than native larvae and identified conditions associated with larval occupancy that can be used to maximize detection and better understand when, where, and under what conditions larvae are present.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"41 6","pages":"1332-1346"},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/rra.4441","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147901050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling Stage Zero Conditions in the New Forest National Park: A <scp>UAV</scp>‐Based Structure‐From‐Motion Photogrammetry and <scp>LiDAR</scp> Approach for Reconstructing an Anastomosing Wet Woodland at the Avon Water","authors":"Edward J. Fleming","doi":"10.1002/rra.4382","DOIUrl":"https://doi.org/10.1002/rra.4382","url":null,"abstract":"ABSTRACT In recent years, there have been significant technological advances in uncrewed aerial vehicles (UAVs) and in particular the use of lightweight consumer‐grade ‘drones’. This combined with the development of structure‐from‐motion (SfM) technology has provided river restoration practitioners with a new tool that can be used to give an affordable, repeatable and objective assessment of river restoration projects. In this study, a combined SfM photogrammetry and LiDAR approach is utilised on a section of the Avon water, a small watercourse in the New Forest National Park. Victorian‐era straightening and channelisation has significantly altered the ecological and morphological state of the river system, but recent river restoration projects aim to reverse these effects. Whilst historic maps may be used as a guide to reveal the former alignment, changes in river planform occurred much earlier and these maps may not represent the natural course of the river. High‐resolution orthophotos and 3D photogrammetric models of the site are created that reveal a palaeolandscape consisting of a mosaic of anabranching channels. These are interpreted to represent a former anastomosing wet woodland and ‘Stage Zero’ of the river system. It is inferred that early human habitation and associated land clearance altered hydrological and hydrogeological conditions, reducing floodplain connectivity and promoting single‐threaded planform configurations. This was then followed by the most recent Victorian‐era straightening. The palaeolandscape revealed by the study provides a guide for future Stage Zero river restoration in the New Forest and elsewhere, demonstrating an application of low cost, UAV‐derived photogrammetry in river restoration research.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"41 1","pages":"159-176"},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stream Restoration Effects on Habitat and Abundance of Native Cutthroat Trout","authors":"Brian W. Hodge, Richard Henderson, Christopher E. Brehme","doi":"10.1002/rra.4373","DOIUrl":"https://doi.org/10.1002/rra.4373","url":null,"abstract":"Restoration practitioners spend more than $1 billion each year restoring US rivers and streams but commit comparatively few resources to evaluating project effectiveness. Meanwhile, monitoring and disseminating the outcomes of restoration projects remains our best opportunity to learn from past successes and failures and to, ultimately, improve the cost effectiveness of restoration. We monitored the physical and biological outcomes of a stream restoration project in the Rocky Mountains, the goals of which were to improve habitat for and productivity of native Colorado River Cutthroat Trout (CRCT) and the scope of which included three contiguous reaches under different restoration treatments. Moreover, we evaluated the efficacy of the restoration project relative to its stated goals and objectives. To test for restoration effects on physical and biological indicators we coupled a before‐after, control‐impact (BACI) study design with (generalized) linear mixed models. Over the course of 7 years, we detected restoration‐related increases in floodplain connectivity, streambank stability, and riparian shrub cover, as well as decreases in summer stream temperature. Despite measured improvements in native trout habitat, we detected no evidence of a restoration effect on density or biomass of age‐1 and older CRCT. Although our study was somewhat limited in scope, our findings contribute toward a relatively small body of work on monitoring and effectiveness of river restoration.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"12 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scenario Planning Management Actions to Restore Cold Water Stream Habitat: Comparing Mechanistic and Statistical Modeling Approaches","authors":"M. R. Fuller, N. E. Detenbeck, P. Leinenbach, R. Labiosa, D. Isaak","doi":"10.1002/rra.4381","DOIUrl":"https://doi.org/10.1002/rra.4381","url":null,"abstract":"Under the United States Clean Water Act, states are required to periodically assess state waters to determine compliance with water quality criteria (including temperature) and then to develop total maximum daily loads (TMDLs) for impaired waters as necessary to bring them into compliance. We compared the performance of mechanistic stream temperature models (HeatSource, QUAL2K, and QUAL2Kw) applied to the mainstem of three TMDL watersheds (Middle Fork John Day, OR; Wind River, WA; South Fork Nooksack, WA) with that of spatial stream network (SSN) models applied to the full watersheds and used these to evaluate the potential effectiveness of restoration strategies. SSN models performed well with slightly lesser accuracy (RMSE = 0.47–0.87) for mainstem predictions than mechanistic models (RMSE = 0.4) but provided additional benefits to inform management, including information on spatial and temporal heterogeneity of restoration effectiveness throughout the watershed. Of the four scenarios considered (restoration of riparian zones to potential natural vegetation, channel narrowing, increasing flow by restricting irrigation withdrawals, and combined applications), riparian zone restoration was consistently the most effective in reducing temperatures at the outlet, mainstem, and throughout the watersheds. Predicted restoration effectiveness for thermal regimes varied significantly both within and among watersheds. A focus on water quality criteria exceedance only at the watershed outlet or along the mainstem reach can obscure knowledge of restoration potential for fish habitat in tributaries and headwaters, potential for creation of thermal refuge areas along the mainstem critical for maintaining migration corridors, and thermal regime heterogeneity across space and time.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental Factors Associated With Fish Reproduction in Regulated Rivers","authors":"Erik M. Griffen, Michael J. Weber","doi":"10.1002/rra.4376","DOIUrl":"https://doi.org/10.1002/rra.4376","url":null,"abstract":"Humans have extensively altered rivers to accommodate anthropogenic uses. Dams modify river flow and temperature regimes important for lotic fish reproduction. Yet, assessments of fish production in relation to environmental conditions in regulated rivers are lacking but are needed to guide experimental environmental flows. We evaluated the effects of water temperature and discharge on larval Catostomidae, Sciaenidae, and Clupeidae production to inform environmental flow management. We sampled ichthyoplankton from April through June on the Des Moines and Iowa rivers prior to (2014–2015) and after (2021–2022) an experimental environmental flow was incorporated on the Des Moines River. We used a hurdle model to assess the effects of water temperature, discharge, and discharge variation on larval presence (logistic regression) and density (linear regression). Larval Catostomidae were captured once water temperatures exceeded 15°C, Sciaenidae appeared when water temperature surpassed 18°C, while Clupeidae appeared when water temperature exceeded 20°C. The probability of larval Sciaenidae and Clupeidae presence increased with discharge variation while densities were both positively associated with discharge and discharge variation. The probability of Sciaenidae and Catostomidae larval presence increased with water temperature. Interactions between water temperature and discharge influenced Clupeidae presence and Catostomidae density. The probability of Clupeidae presence increased with discharge at warmer water temperatures. Catostomidae densities increased with discharge at cool water temperature (13°C) and decreased with discharge at warm (25°C) temperatures. Our results provide information about the effects of discharge, discharge variation, and water temperature driving larval fish production in anthropogenically altered rivers to guide environmental flow management.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"39 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulation‐Based Assessment of Fine Sediment Transport to Support River Restoration Measures","authors":"Flóra Pomázi, Sándor Baranya","doi":"10.1002/rra.4378","DOIUrl":"https://doi.org/10.1002/rra.4378","url":null,"abstract":"A three‐dimensional coupled hydrodynamic and sediment transport model was employed to simulate the suspended sediment transport at a section of the Danube River, in Hungary. The case study is characterised by a highly complex hydromorphological system due to the nearby tributary inflow, the high number of river regulation structures as well as the several side‐arms connected to the Danube mainstem. The numerical model is set up, parameterised and validated against thorough field data of flow velocities and sediment concentrations measured at different hydrological regimes. Through the selected case study, the paper introduces (i) why 3D description is necessary at a reach‐scale analysis of complex hydromorphological systems; (ii) what sort of field data is needed to parameterise and validate a hydrodynamic and sediment transport model considering the spatial inhomogeneity of the flow and sediment features and (iii) an example for a quantitative impact assessment of side‐arm revitalisation measures on the sedimentation processes, playing a crucial role in the quality of riverine habitats.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"310 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Going to the archives: Combining palaeoecological and contemporary data to support river restoration appraisals","authors":"J. C. White, E. Seddon, M. J. Hill, K. L. Mathers, M. Bridger, D. M. Hannah, P. J. Wood","doi":"10.1002/rra.4366","DOIUrl":"https://doi.org/10.1002/rra.4366","url":null,"abstract":"River restoration practices are being increasingly implemented to help offset the global degradation of freshwater ecosystems. The ecological success of such projects is typically determined via post‐project appraisals comparing restored conditions against specified baselines (e.g., pre‐project and/or non‐restored data), but such approaches can overlook broader ecosystem recovery patterns. Using freshwater macroinvertebrate communities, this study examined ecological responses to river restoration that are seldom assessed: (i) sub‐annual temporal trajectories and (ii) palaeoecological versus contemporary community comparisons. Palaeoecological samples contained assemblages that existed prior to major anthropogenic pressures, which were collected from a sinuous palaeochannel that was restored and reconnected during the study; after which contemporary macroinvertebrate samples were collected. The restored channel initially supported an impoverished community, but taxonomic richness and densities were comparable to non‐restored conditions after 13‐months. The freshwater shrimp (<jats:italic>Gammarus pulex</jats:italic>) and non‐native New Zealand mud snail (<jats:italic>Potamopyrgus antipodarum</jats:italic>) proliferated 7‐months post‐restoration, and follow‐up biomonitoring highlighted their dominance prevailed 5‐years later. Such evidence indicates how ecosystem dynamics in the aftermath of restoration can shape longer‐term recovery. Palaeoecological communities exhibited higher biodiversity and conservation values compared with contemporary samples. This highlights that escalating anthropogenic pressures since the mid‐20th Century degraded macroinvertebrate communities, notably constraining marginal‐dwelling and lentic specialists. With palaeochannel reconnections being widely applied worldwide, this study demonstrates the value in collecting palaeoecological data before restoration works to provide valuable baseline information. As the global anthropogenic footprint increasingly degrades suitable “reference” river environments, palaeoecological data can better characterize biodiversity losses and potentially provide target conditions informing effective restoration activities.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"57 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Initial ecological recovery post‐weir removal amidst catchment‐wide improvements, in a groundwater‐dominated chalk stream","authors":"J. England, J. C. White, T. Johns, G. Meadows, D. M. Hannah","doi":"10.1002/rra.4351","DOIUrl":"https://doi.org/10.1002/rra.4351","url":null,"abstract":"Physical habitat modification is one of the main pressures affecting river environments, impacting their ecosystem health and compromising their ability to adapt to the effects of climate change. Addressing the impacts of physical modification through reinvigorating natural processes has become a globally established river restoration technique. Here, we appraised such an approach by assessing ecological responses to a weir removal project on an English groundwater‐dominated ‘chalk’ stream. Using a Before‐After‐Control‐Impact (BACI) approach, we found that 3 years post‐restoration the macroinvertebrate communities are moving towards those of the target community both in terms of structural complexity (e.g., taxonomic composition) and functional integrity (e.g., trait composition). The progress is ongoing and has occurred alongside wider catchment improvements. Our results indicate that ecological responses to passive restoration undertaken on low energy streams, such as chalk streams, may be gradual, and thus longer‐term assessment is needed to fully appraise ecological recovery. We highlight the importance of a BACI approach to understand the local responses to restoration in a catchment context. Our findings also provide further evidence highlighting complementary ecological information provided by assessing taxonomic and functional properties concurrently in post‐project appraisals. A better understanding of ecological recovery times should be incorporated into future restoration planning. Such evidence would help develop robust assessments over appropriate timescales, increasing the likelihood of accurately and effectively appraising restoration project success, and helping to build support to increase the scale and pace of restoration actions needed to address biodiversity loss.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"141 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}