Water Resources Research最新文献

筛选
英文 中文
Deep Soil Water Reservoirs Modulate Land Use and Drought Effects on the Water Budget of Amazon Headwaters 深层土壤水库调节亚马逊河上游土地利用和干旱对水收支的影响
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-16 DOI: 10.1029/2024wr039729
Abra Atwood, Michael T. Coe, Christopher Neill, Leonardo Maracahipes‐Santos, Paulo Brando, Shelby H. Riskin, Andrea Castanho, Linda Deegan, Antônio Carlos Silveiro, Marcia N. Macedo
{"title":"Deep Soil Water Reservoirs Modulate Land Use and Drought Effects on the Water Budget of Amazon Headwaters","authors":"Abra Atwood, Michael T. Coe, Christopher Neill, Leonardo Maracahipes‐Santos, Paulo Brando, Shelby H. Riskin, Andrea Castanho, Linda Deegan, Antônio Carlos Silveiro, Marcia N. Macedo","doi":"10.1029/2024wr039729","DOIUrl":"https://doi.org/10.1029/2024wr039729","url":null,"abstract":"The southeastern Amazon has been transformed by widespread land use and climate changes, altering the hydrologic cycle. In this seasonally dry tropical forest, the soil water reservoir plays a strong role in mediating the water balance by buffering forests during dry seasons and moderate droughts, as well as modulating runoff to streams. Few studies have examined the response of soil water reservoirs to large‐scale forest loss in headwater regions, much less how these changes may influence catchment water balances during droughts. This study compares the water balance of forested and cropland watersheds in the headwaters of the Xingu River basin (Mato Grosso, Brazil). We combined measurements of stream discharge and soil moisture (from 0.3 to 8 m depth) from the 2014–2018 water years, along with remotely sensed precipitation and evapotranspiration (ET) data, comparing normal precipitation years to an extreme drought year. Streams within agricultural catchments had four times higher discharge (29% of total precipitation) than in forested catchments (8%). During normal years, this difference was balanced by differences in ET. We found that groundwater outflow—water that bypasses a catchment without reaching the stream—is a significant water export term under both landcovers (19% in forest; 26% in croplands). However, during drought years, this outflow disappears in forested catchments and decreases in agricultural catchments, suggesting enhanced groundwater uptake by vegetation that diminishes contributions to rivers downstream. Multiyear droughts projected under future climate changes could threaten the soil water reservoir, leaving forests without a critical resource and downstream communities vulnerable to streamflow loss.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"104 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal Controls on Clogging‐Declogging Processes Within the Benthic Biolayer of Intermittent Streams 间歇流底栖生物层内堵塞-疏通过程的热控制
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-16 DOI: 10.1029/2025wr040705
Qihao Jiang, Michelle E. Newcomer, Tiange Wang, Haiyu Yuan, Jing Xu, Changchun Huang
{"title":"Thermal Controls on Clogging‐Declogging Processes Within the Benthic Biolayer of Intermittent Streams","authors":"Qihao Jiang, Michelle E. Newcomer, Tiange Wang, Haiyu Yuan, Jing Xu, Changchun Huang","doi":"10.1029/2025wr040705","DOIUrl":"https://doi.org/10.1029/2025wr040705","url":null,"abstract":"Benthic biolayers with abundant microbial activity below the sediment‐water interface significantly contribute to stream metabolism and bioclogging processes. Most research has focused on the lotic phase of intermittent streams, with limited attention to the impact of temperature on bioclogging in static pool‐aquifer systems. In this study, we combined column experiments with temperature‐dependent models of reactions, microbial growth, and bioclogging to investigate the thermal controls on clogging‐declogging processes within and below the benthic biolayer. Warmer temperatures (40°C) significantly alleviated bioclogging, resulting in a 12.8% reduction in porosity compared to the 30°C group. This declogging is primarily driven by two mechanisms: (a) increased temperatures inhibit microbial growth, compressing the spatial range of the benthic biolayer and limiting the vertical extent of the clogging layer induced by biofilm; (b) biogas formation and release are stimulated by higher temperatures, as evidenced by the denser gas voids observed in sediment profiles. Intense gas release may open up clogged layers and alter the microtopography at the bed surface. The model further indicated that the thickness of the benthic biolayer and clogging layer linearly decreases with temperature under mesotrophic and eutrophic conditions, while its impact in oligotrophic conditions is negligible. Therefore, temperature is a crucial factor regulating surface‐subsurface interactions and should be considered in water resource management in dry regions. These results are relevant in the context of climate change, where warmer temperatures expected in isolated pools are likely to make them greenhouse gas emission hotspots from intermittent streams in the future.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"24 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Rivers to Floodplains: Leveraging Transfer Learning to Predict Floodplain Dissolved Oxygen 从河流到洪泛区:利用迁移学习预测洪泛区溶解氧
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-15 DOI: 10.1029/2024wr039820
George H. Myers, Kristen L. Underwood, Rebecca M. Diehl, Donna M. Rizzo, Tiffany L. Chin, Eric D. Roy
{"title":"From Rivers to Floodplains: Leveraging Transfer Learning to Predict Floodplain Dissolved Oxygen","authors":"George H. Myers, Kristen L. Underwood, Rebecca M. Diehl, Donna M. Rizzo, Tiffany L. Chin, Eric D. Roy","doi":"10.1029/2024wr039820","DOIUrl":"https://doi.org/10.1029/2024wr039820","url":null,"abstract":"Dissolved oxygen (DO) regulates the dominant biogeochemical processes in floodplains and is an important water quality indicator. However, predicting DO dynamics with data driven methods in floodplains is challenging due to data scarcity, limiting our understanding of the efficacy of floodplain restoration for clean water objectives. This study applies domain adaptation transfer learning (TL) to a long short‐term memory (LSTM) model to generate floodplain DO predictions. First, a LSTM model was trained on a data‐rich river “source domain” and then used to predict floodplain DO. The trained river model was used to initialize a new TL LSTM model which was finetuned to the floodplain “target domain,” where the same type of monitoring data were scarcer. A third LSTM model was trained only on the floodplain data, and performance was compared across the three models. The TL model outperformed the river model and performed slightly better than the floodplain model (TL model—root mean squared error (RMSE): 2.79; floodplain model—RMSE: 2.90; river model—RMSE: 4.40). Shapley additive explanation (SHAP) values revealed that while the floodplain model relied more heavily on site‐specific attributes, the TL model encoded relationships with dynamic drivers, capturing process‐informed behavior from both river and floodplain domains. Our findings suggest that TL produces models that generalize better across sites and are more robust to variable conditions, offering both predictive skill and process insight. Our modeling framework offers a scalable and interpretable solution for data‐scarce environments, with broad applicability across water resources and Earth system sciences.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"84 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Predicting Soil Interpedal Macroporosity and Hydraulic Conductivity Dynamics: A Model for Integrating Laser‐Scanned Profile Imagery With Soil Moisture Sensor Data 预测土壤跨层宏观孔隙度和水力导电性动力学:激光扫描剖面图像与土壤水分传感器数据的集成模型
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-15 DOI: 10.1029/2024wr039836
Daniel R. Hirmas, Hoori Ajami, Matthew G. Sena, Xi Zhang, Xiaoyang Cao, Bonan Li, Karla M. Jarecke, Sharon A. Billings, Julio C. Pachon, Li Li, Jesse B. Nippert, Lígia F. T. Souza, Alejandro N. Flores, Pamela L. Sullivan
{"title":"Predicting Soil Interpedal Macroporosity and Hydraulic Conductivity Dynamics: A Model for Integrating Laser‐Scanned Profile Imagery With Soil Moisture Sensor Data","authors":"Daniel R. Hirmas, Hoori Ajami, Matthew G. Sena, Xi Zhang, Xiaoyang Cao, Bonan Li, Karla M. Jarecke, Sharon A. Billings, Julio C. Pachon, Li Li, Jesse B. Nippert, Lígia F. T. Souza, Alejandro N. Flores, Pamela L. Sullivan","doi":"10.1029/2024wr039836","DOIUrl":"https://doi.org/10.1029/2024wr039836","url":null,"abstract":"The size and spatial distribution of soil structural macropores impact the infiltration, percolation, and retention of soil water. Despite the assumption often made in hydrologic flux equations that these macropores are rigid, highly structured soils can respond quickly to moisture variability‐induced shrink‐swell processes altering the size distribution of these pores. In this study, we use a high‐resolution (180 m) laser imaging technique to measure the average width of interpedal, planar macropores from intact cross sections and relate it to matrix water content. We also develop an expression for unsaturated hydraulic conductivity that accounts for dynamic macropore geometries and propose a method for partitioning sensor soil water content data into matrix and macropore water contents. The model was applied to a soil in northeastern Kansas where soil monoliths had been imaged to quantify macropore properties and continuous water content data were collected at three depths. Model‐predicted macropore width showed significant sensitivity to matrix water content resulting in changes of 15%–50% of maximum width over the 15‐month period of record. Transient saturated hydraulic conductivity predicted from the model compared favorably to a previously developed model accounting for moisture‐induced changes to structural unit porosity. Following periods of low soil moisture, infiltrating meteoric water filled highly conductive macropores increasing by several orders of magnitude which subsequently decreased as water was absorbed into the matrix and macropores drained. This model offers a means by which to combine measurable morphological data with soil moisture sensors to monitor dynamic hydraulic properties of soils susceptible to shrink‐swell processes.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"71 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cloudbursts of the Mid‐Atlantic 大西洋中部的暴雨
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-15 DOI: 10.1029/2025wr040384
James A. Smith, Mary Lynn Baeck, Andrew J. Miller, Alexander Ryzhkov, Jiaxi Hu
{"title":"Cloudbursts of the Mid‐Atlantic","authors":"James A. Smith, Mary Lynn Baeck, Andrew J. Miller, Alexander Ryzhkov, Jiaxi Hu","doi":"10.1029/2025wr040384","DOIUrl":"https://doi.org/10.1029/2025wr040384","url":null,"abstract":"Extreme short‐duration rainfall in the Mid‐Atlantic region of the US is examined through polarimetric radar analyses of storms that produced rainfall accumulations exceeding 1,000‐year values for time scales less than 3 hr. Polarimetric radar analyses of Mid‐Atlantic cloudbursts focus on dynamical processes associated with updrafts and downdrafts, microphysical processes associated with extreme rainfall rates and mesoscale processes associated with structure, motion and evolution of convective systems over short time scales and small spatial scales. Dynamical processes associated with updrafts and downdrafts play a key role in determining the spatial and temporal distribution of extreme rainfall and in dictating errors in radar rainfall estimates through the effects of vertical motion. The microphysics of extreme short‐duration rainfall exhibit a mix of cold and warm rain processes, with cold rain processes contributing to cycles of growth and decay in raindrop size distributions. Analyses are designed to address critical research problems linked to modernizing methods for estimating Probable Maximum Precipitation (PMP). Polarimetric radar provides an important path for estimating rainfall for PMP‐magnitude storms. We compare rainfall analyses from recent storms in the Mid‐Atlantic with cloudburst rainfall from the pre‐radar era, including storms that produced record or near‐record rainfall accumulations for the US and the world. Rainfall accumulations at time scales shorter than 3 hr for polarimetric era storms are large relative to rainfall frequency results, but modest in comparison with rainfall maxima from historical cloudbursts in the Mid‐Atlantic.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"78 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Density Constrains Environmental Impacts of Fluid Abstraction in Closed‐Basin Lithium Brines 封闭盆地锂盐流体提取对环境影响的密度限制
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-15 DOI: 10.1029/2024wr039511
Daniel B. Corkran, David F. Boutt, Lee Ann Munk, Brendan J. Moran, Sarah V. McKnight, Jordan Jenckes, Alexander Kirshen
{"title":"Density Constrains Environmental Impacts of Fluid Abstraction in Closed‐Basin Lithium Brines","authors":"Daniel B. Corkran, David F. Boutt, Lee Ann Munk, Brendan J. Moran, Sarah V. McKnight, Jordan Jenckes, Alexander Kirshen","doi":"10.1029/2024wr039511","DOIUrl":"https://doi.org/10.1029/2024wr039511","url":null,"abstract":"The unprecedented expansion of lithium mining in closed‐basin brines is sparking concerns that mine‐related brine abstraction will stress freshwater resources and harm sensitive wetland ecosystems. These fears stoke preexisting conflicts between indigenous communities, governments, and mining interests. However, until now there has not been a comprehensive evaluation of how groundwater flux to wetlands in these systems responds to brine and freshwater abstraction to support these concerns. This study characterizes the hydrogeologic relationship between both brine and freshwater abstraction and groundwater discharge to wetlands in closed‐basin brine systems utilizing groundwater‐flow models representing three closed‐basin brine system endmembers. The models show that regardless of hydrogeologic conditions, fresh groundwater abstraction has a 200%–2,300% larger impact than halite brine abstraction on groundwater‐dependent wetlands over a 200‐year period. The primary control mechanisms for groundwater discharge response to abstraction are proximity to the abstraction point and density‐driven storage flux, which magnifies the impacts of freshwater abstraction and buffers the impacts of brine abstraction. Observations of changes in wetland vegetation near existing lithium brine mines show a 90% reduction in vegetated wetland area in response to freshwater abstraction but no observable change in response to brine abstraction, in agreement with the results of the modeling study. These findings demonstrate that minimizing freshwater use is more effective at protecting groundwater‐dependent wetlands than limiting brine drawdowns in closed‐basin brine systems.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"36 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toward a New Framework to Evaluate Process‐Based Model Configurations and Quantify Data Worth Prior to Calibration 迈向一个新的框架,以评估过程为基础的模型配置和量化数据价值之前的校准
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-13 DOI: 10.1029/2025wr040323
Mark S. Pleasants, Michael N. Fienen, Hedeff I. Essaid, Joel D. Blomquist, Jing Yang, Ming Ye
{"title":"Toward a New Framework to Evaluate Process‐Based Model Configurations and Quantify Data Worth Prior to Calibration","authors":"Mark S. Pleasants, Michael N. Fienen, Hedeff I. Essaid, Joel D. Blomquist, Jing Yang, Ming Ye","doi":"10.1029/2025wr040323","DOIUrl":"https://doi.org/10.1029/2025wr040323","url":null,"abstract":"Model criticism, discrimination, and selection methods often rely on calibrated model outputs. Because calibration can be computationally expensive, model criticism can first be undertaken by assessing model outputs obtained from limited prior parameter ensembles. However, such prior‐based methods are often heuristic and do not formalize the notion of balancing model consistency with data and model complexity (i.e., model adequacy). We present a new framework to discriminate among candidate models prior to calibration that formalizes prior‐to‐calibration model adequacy into a metric to implicitly balance prior model output data coverage with model complexity represented by prior output (co)variance. The prior model adequacy metric “Mahalanobis distance deviation” quantifies the deviation of (a) the set of squared Mahalanobis distances of data from a prior model output distribution from (b) the set of squared Mahalanobis distances of data from their own distribution. A new data worth metric “discernment value” is also presented which quantifies the value of data for screening less‐adequate models prior to calibration. Discernment value is calculated from the change in variance of a weighted average of prior model outputs from all candidate models due to less‐adequate model outputs receiving lower weight. The framework is demonstrated using a one‐dimensional groundwater flow model with eight possible configurations. A synthetic data network is used to test the framework. Results show the framework identifies the candidate models most similar to the true model used to create the synthetic data. Discernment values show variation in the value of different data types and locations for screening less‐adequate models.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"24 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flood Damage Evaluation for Buildings in a Small Island Developing State 小岛屿发展中国家建筑物洪水损害评估
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-13 DOI: 10.1029/2025wr040141
Ryan Paulik, Josephina Chang‐Ting, Shaun Williams
{"title":"Flood Damage Evaluation for Buildings in a Small Island Developing State","authors":"Ryan Paulik, Josephina Chang‐Ting, Shaun Williams","doi":"10.1029/2025wr040141","DOIUrl":"https://doi.org/10.1029/2025wr040141","url":null,"abstract":"Flooding poses significant social and economic challenges for Small Island Developing States (SIDS). Despite frequent and damaging flood events, SIDS are underrepresented among global flood damage models. This study evaluated tree‐based learning algorithm performance for building damage prediction, using a new data set from 2012 Tropical Cyclone Evan in Apia, Samoa. Empirical building damage data was used to identify relationships with explanatory hazard and exposure variables, and test uni‐ and multivariable regression model performance in response to varying hyperparameter and explanatory variable combinations. Multivariable ensemble models showed higher precision and reliability than tree‐based deterministic and univariable ensembles. A high‐performing Extreme Gradient Boosting multivariable model showed prediction precision improvements for up to five variable additions, with reduced performance from variable additions thereafter. Water depth above floor level and building area caused the highest precision improvement. Building area importance for damage is a promising finding, warranting further investigation of geometric variable effects on building flood damage and damage model capacity for transfer between geographical locations. Such investigations should align with local knowledge of building damage processes to ensure appropriate explanatory variables are collected and applied in flood damage models.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"38 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145072351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Curved‐Bar Rack‐Bypass System With Innovative Foil Shaped Bars: Hydraulics, Operational Aspects, and Swimming Behavior of Downstream Moving Brown Trout 弯曲杆架旁路系统与创新箔形杆:液压,操作方面,和下游移动褐鳟的游泳行为
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-11 DOI: 10.1029/2024wr038354
Fan Yang, Anita Moldenhauer‐Roth, Yannick Marschall, David F. Vetsch, Oliver M. Selz, Yuhong Zeng, Robert M. Boes, Ismail Albayrak
{"title":"A Curved‐Bar Rack‐Bypass System With Innovative Foil Shaped Bars: Hydraulics, Operational Aspects, and Swimming Behavior of Downstream Moving Brown Trout","authors":"Fan Yang, Anita Moldenhauer‐Roth, Yannick Marschall, David F. Vetsch, Oliver M. Selz, Yuhong Zeng, Robert M. Boes, Ismail Albayrak","doi":"10.1029/2024wr038354","DOIUrl":"https://doi.org/10.1029/2024wr038354","url":null,"abstract":"Curved bar rack ‐ bypass systems (CBR‐BS) are a promising technology for diverting downstream moving fish away from hydropower intakes. A CBR functions as a mechanical behavioral barrier by creating high velocity and pressure gradients along its bars, guiding approaching fish that exhibit avoidance reactions towards the bypass. The original CBR design features a bar shape with spacings that narrow from the upstream to the downstream tip, which raises concerns about clogging due to foliage and floating debris. To address this issue, new foil‐shaped bars (f‐CBR) were developed with similar hydraulics while maintaining a constant bar spacing along the rack. To test its performance, a 1:1 physical model of a f‐CBR with a bar spacing of 25 mm was installed in an etho‐hydraulic flume. Live‐fish tests using brown trout were conducted at approach flow velocities of , 0.3, 0.6 m/s, with bypass‐to‐approach flow velocity ratios set at and 1.2. Additional tests with leaves and driftwood were performed to evaluate clogging probability of the f‐CBR. Flow fields were also numerically simulated for the tested flow conditions and linked to the fish behavior. Over all tested setups, fish guidance efficiencies between 47% and 66% were observed, while fish protection efficiencies ranged from 65% to 86%. These findings are compared with those from other types of behavioral fish guidance racks tested in both laboratory and field settings. Finally, potential measures for the optimal design of a f‐CBR‐BS are presented.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"33 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Can Water Conservancy Project Regulation Mitigate Climate Change‐Induced Degradation of Avian Food Vegetation in Large Floodplain Wetlands? 水利工程调控能否缓解气候变化导致的大型洪泛平原湿地鸟类食用植被退化?
IF 5.4 1区 地球科学
Water Resources Research Pub Date : 2025-09-11 DOI: 10.1029/2025wr040932
Cheng Chen, Yang Liu, Siyang Yao, Qiuwen Chen, Jianyun Zhang, Kangle Mo, Mengnan He, Jinge Ma
{"title":"Can Water Conservancy Project Regulation Mitigate Climate Change‐Induced Degradation of Avian Food Vegetation in Large Floodplain Wetlands?","authors":"Cheng Chen, Yang Liu, Siyang Yao, Qiuwen Chen, Jianyun Zhang, Kangle Mo, Mengnan He, Jinge Ma","doi":"10.1029/2025wr040932","DOIUrl":"https://doi.org/10.1029/2025wr040932","url":null,"abstract":"Climate change is projected to induce drought, resulting in the deterioration of avian food vegetation in large floodplain wetlands. The construction of water conservancy project may potentially alleviate this deterioration; however, the combined impact of climate change and water conservancy project regulation on avian food vegetation requires further investigation. In this study, a vegetation community model was developed by integrating a 2D hydrodynamic model and Cellular Automata to simulate the vegetation dynamics in floodplain wetlands. The developed model was applied in Poyang Lake, an important floodplain wetland conservation area in China under the Ramsar Convention, and the potential impact of the proposed Poyang Lake sluice on the deterioration of avian food vegetation caused by climate change was projected. We found that the avian food vegetation would continue to degrade under the influence of climate change, due to the enhanced drought conditions in the future. The extent of hygrophilous avian food vegetation experienced a significant reduction after the sluice operation, whereas the area of submerged avian food vegetation saw a notable increase. In the short term, the operation of the Poyang Lake sluice had a detrimental impact on avian food vegetation, which is primarily attributed to elevated water levels caused by sluice operation leading to submersion of hygrophilous avian food vegetation. Over time, however, the decrease in avian food vegetation caused by climate change will be mitigated by sluice operation, because the stabilized water levels and increased flooding time provide favorable conditions for the growth of submerged avian food vegetation.","PeriodicalId":23799,"journal":{"name":"Water Resources Research","volume":"59 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信