Suzanne J. Rhoades, Timothy J. Caldwell, Scott McBain, Rene Henery, Natalie Stauffer-Olsen, Tara McKinnon, Gabriel J. Rossi, Sudeep Chandra
{"title":"Trout bioenergetics as a process-based tool to estimate ecological risk in a regulated river","authors":"Suzanne J. Rhoades, Timothy J. Caldwell, Scott McBain, Rene Henery, Natalie Stauffer-Olsen, Tara McKinnon, Gabriel J. Rossi, Sudeep Chandra","doi":"10.1111/1752-1688.13173","DOIUrl":"10.1111/1752-1688.13173","url":null,"abstract":"<p>Bioenergetics models produce quantitative flow-ecology relationships that summarize changes in habitat and food resources from altered flows. We used a drift-foraging bioenergetics model to quantify the net rate of energetic intake (NREI) for trout above and below a water diversion. NREI is reduced by >95% below the water diversion in July–September, when up to 98% of unimpaired flows are diverted. We then used a risk-based approach to estimate the maximum diversion rate, expressed as a percentage of unimpaired flow, that would produce NREI values that are not significantly lower than values under unimpaired flows throughout a 62-year period. NREI decreased with increased precent-of-flow diversion rates in low-flow months (July–September). Diversion rates of 16% in July and 9% in August and September would maintain NREI within the range of unimpaired flow conditions. In higher flow months, May–June, increasing diversions brought estimated instream flows closer to the peak NREI flow, leading to the assessment that increased diversions would increase NREI. Bioenergetic models can be used to develop protective flow rates at times of the year when fish growth and production would be high under unimpaired flows, which often coincides with when water is diverted. Our study is the first to develop protective percent-of-flow diversion rates for holistic flow management using a quantitative process-based and fish-centric ecological metric.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"60 2","pages":"287-304"},"PeriodicalIF":2.4,"publicationDate":"2023-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.13173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135038332","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":"Drinking water under fire: Water utilities' vulnerability to wildfires in the Pacific Northwest","authors":"Patrick J. L. Robichaud, Julie C. Padowski","doi":"10.1111/1752-1688.13174","DOIUrl":"10.1111/1752-1688.13174","url":null,"abstract":"<p>Increased wildfire activity in the western United States can lead to detrimental cascading effects to water quality. After fires, burned areas may experience significant runoff-induced erosion and sediment transport into rivers and reservoirs, which could rapidly overwhelm existing drinking water treatment plants. This paper couples an assessment of wildfire risk with an evaluation of water utility preparedness to understand where key fire-related drinking water vulnerabilities exist. Wildfire risk assessments were constructed and expanded from a commonly used methodology co-developed between researchers and water managers (Edel et al., 2002), to understand drinking water impacts on water quality after wildfires. A water utility preparedness index was created for this study using publicly available information to contextualize how well utilities may be able to respond to water quality degradation after fires. Results indicate that 22% of utilities studied (10% of the population served) were underprepared for fire and 11% of watersheds used were at greater risk of wildfire (9% of the population served). However, nearly three-quarters of utilities (76% of the population served) showed a moderate risk of fire and some need for improved fire preparedness. Information developed here could provide a useful framework from which utility managers can better assess their likely wildfire risk and preparation plans.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"60 2","pages":"590-602"},"PeriodicalIF":2.4,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.13174","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135186476","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":"Modeling source water disinfection byproducts formation potential using environmental variables","authors":"Kezhen Wang, Rajith Mukundan, Rakesh K. Gelda","doi":"10.1111/1752-1688.13172","DOIUrl":"10.1111/1752-1688.13172","url":null,"abstract":"<p>Predictive models of disinfection byproducts (DBPs) formation in treated drinking water have been widely used to guide operational decisions. However, very few studies have addressed the issue of managing DBPs through watershed protection programs and proactive management of water supply systems through predictive modeling of DBP formation potential in source waters. Here, we propose a two-component, simple statistical approach to predict the formation potentials of the sum of five haloacetic acids (HAA5fp) and total trihalomethanes (TTHMfp) in source water streams using environmental variables and ultraviolet absorbance at 254 nm wavelength (UV<sub>254</sub>) as a surrogate for DBP precursors. In the first component of the model, using three feature selection regression models and cross-validation of subsets of the selected predictors, we identified three commonly monitored variables—streamflow, soil temperature, and total phosphorus for predicting UV<sub>254</sub>. In the second component, HAA5fp and TTHMfp are predicted from UV<sub>254</sub>. The approach is successfully demonstrated for two source water streams of the New York City water supply system (<i>R</i><sup>2</sup> was 0.8, and 0.7–0.8 for the two model components). Long-term predictions of HAA5fp and TTHMfp showed distinct seasonal patterns that are linked to differences in land uses of the two watersheds. Moreover, sensitivity analysis showed that transport processes were important in one watershed whereas production processes were more important in the other.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"60 1","pages":"163-175"},"PeriodicalIF":2.4,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135871566","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}
Illias Alhassane, Abdou Babaye Maman Sani, Issa Malan S.Souleymane
{"title":"Piezometric and Hydrochemical Dynamics of Alluvial Aquifer in Timia Valley, Aïr Mountains, Semi-Arid Region (Agadez, Niger)","authors":"Illias Alhassane, Abdou Babaye Maman Sani, Issa Malan S.Souleymane","doi":"10.12691/ajwr-11-4-5","DOIUrl":"https://doi.org/10.12691/ajwr-11-4-5","url":null,"abstract":"The alluvial aquifer of the Timia valley provide the supply of water to the population, but also the need for irrigation water. This important aquifer is highly dependent on precipitations and sometimes it dries out before the return of rainy season leading to drought. Also, the increase of agricultural activities has led to the deterioration of water quality in places but also to the depletion of this alluvial aquifer. The objective of this study is to contribute to understanding the quantitative and qualitative dynamics of this limited extension aquifer. A methodological approach based on piezometric and hydrochemical methods has revealed that the alluvial aquifer is renewed from the arrival of first floods of Timia valley and the main flow directions that are globally NE-SW. It show too an increase concentration of cations Ca 2+ , Mg 2+ , Na + and stability of K + during the rainy season. However, for anions a low increase of HCO 3-, Cl - , SO 42-and NO 3-during the dry season is observed.","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136135163","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}
Sawadogo Zounabo Epouse Kouyate, Soro Gneneyougo Emile, Kouakou Koffi Abdelaziz, Goula Bi Tié Albert, Brou Yao Casimir
{"title":"Characterization of the Hydrological Functioning of the Nanan Agricultural Dam in the Department of Yamoussoukro (Côte D’Ivoire)","authors":"Sawadogo Zounabo Epouse Kouyate, Soro Gneneyougo Emile, Kouakou Koffi Abdelaziz, Goula Bi Tié Albert, Brou Yao Casimir","doi":"10.12691/ajwr-11-4-4","DOIUrl":"https://doi.org/10.12691/ajwr-11-4-4","url":null,"abstract":"Rainfall decline trend observed since 1970s in Côte d’Ivoire is still putting a strain on the annual recharge of dams and the satisfaction of crop irrigation water requirements. The aim of this study is to analyze the hydrological functioning of the Nanan agricultural dam in a context of climate variability. Several approaches were used to collect the data, including direct measurements, visual observation, surveys, interviews, and documentary research. The method used for the water balance was the principle of volume conservation (continuity equation), applied over two years (2016, 2017). This analysis shows that runoff accounts for 92% of the annual recharge of the Nanan dam. Of the water mobilized, 63% was used for irrigation, and uncontrollable losses amounted to 38%, of which 25% by infiltration and 12% by evaporation. The variation in annual stock was different from one year to the next, with a variation of -104,000 m 3 in 2016 and +165,000 m 3 in 2017. In short, the hydrological regime of the dam is closely linked to the rainfall regime. This characterisation could be used in a future climate projection simulation to analyze the impact of climate change on the dam's capacity to meet crop water requirements.","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"40 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135414853","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":"Hydrochemical Assessment and Quality of Groundwater in Tchamba Prefecture, Upstream of the Mono River Basin, Togo","authors":"Agbessi Koffi Sodomon, Seyf-Laye Alfa-Sika Mande, Lallébila Tampo, Kossitse Venyo Akpataku, Moudassirou Sedou, Kossi Jorge Komlan","doi":"10.12691/ajwr-11-4-3","DOIUrl":"https://doi.org/10.12691/ajwr-11-4-3","url":null,"abstract":": Groundwater is the most important source of water supply in Tchamba prefecture. Groundwater quality contaminations have emerged in many geographical areas due to natural environmental processes and human intervention in the geosystems. Hydrochemical evolution of groundwater quality in the study area was investigated. The physicochemical parameters such as major ions were determined. Factor analysis was used to identify key parameters that described groundwater quality in the study area. The first two factors were considered: Factor 1 explained 53.43% of the total variance and translates the natural rainwater recharge and water-soil/rock interaction process. The second factor (F2) explained 22.05% of the total variance and expresses the anthropogenic pressure such as domestic sewage, uncontrolled landfill waste, fertilizers","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"3 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135823880","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}
Xia Shen, Kai Wang, Sheng Li, Dengke Qing, Weizheng Gao, Dehong Li, Liwei Cao
{"title":"Hydrodynamic and dissolved oxygen–biochemical oxygen demand transport characteristics at the river confluence in China's largest alluvial plain—A modeling study","authors":"Xia Shen, Kai Wang, Sheng Li, Dengke Qing, Weizheng Gao, Dehong Li, Liwei Cao","doi":"10.1111/1752-1688.13171","DOIUrl":"10.1111/1752-1688.13171","url":null,"abstract":"<p>The Yellow River flows through multiple provinces in China, shaping the North China Plain, the largest alluvial plain in China. As the control node of basin ecological environment, the confluence of Weihe River and Yellow River is deemed as the gateway to North China Plain. In this study, a numerical simulation of the Weihe River–Yellow River confluence is conducted using a 2D hydrodynamic model and a coupled transport model for dissolved oxygen–biochemical oxygen demand. The results show that: (i) The typical flow field with multiple backflow areas is formed at the stagnant area where main stream and tributary converge and abrupt channel change area in different hydrological periods. The spur dike here mainly affects the velocity of the Weihe River outlet. (ii) There is an obvious concentration transition mixing zone downstream of the confluence, and the width of the mixing zone gradually linear increases with the direction of water flow. (iii) The self-purification ability of the confluence is strongest in dry period, weaker in level period, and weakest in wet period. Water bodies have stronger self-purification capacity on riverbanks than in the middle, and it is stronger in the upper reaches of Weihe River compared to Yellow River. Lower reaches also have a stronger self-purification capacity than upper reaches. The study results can serve as a scientific reference for protecting the ecological environment of the Yellow River.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"59 6","pages":"1477-1492"},"PeriodicalIF":2.4,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135853492","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}
Samson G Mengistu, Heather E Golden, Charles R Lane, Jay C Christensen, Michael L Wine, Ellen D'Amico, Amy Prues, Scott G Leibowitz, Jana E Compton, Marc H Weber, Ryan A Hill
{"title":"Wetland Flowpaths Mediate Nitrogen and Phosphorus Concentrations across the Upper Mississippi River Basin.","authors":"Samson G Mengistu, Heather E Golden, Charles R Lane, Jay C Christensen, Michael L Wine, Ellen D'Amico, Amy Prues, Scott G Leibowitz, Jana E Compton, Marc H Weber, Ryan A Hill","doi":"10.1111/1752-1688.12885","DOIUrl":"10.1111/1752-1688.12885","url":null,"abstract":"<p><p>Eutrophication, harmful algal blooms, and human health impacts are critical environmental challenges resulting from excess nitrogen and phosphorus in surface waters. Yet we have limited information regarding how wetland characteristics mediate water quality across watershed scales. We developed a large, novel set of spatial variables characterizing hydrological flowpaths from wetlands to streams, that is, \"wetland hydrological transport variables,\" to explore how wetlands statistically explain the variability in total nitrogen (TN) and total phosphorus (TP) concentrations across the Upper Mississippi River Basin (UMRB) in the United States. We found that wetland flowpath variables improved landscape-to-aquatic nutrient multilinear regression models (from <i>R</i><sup>2</sup> = 0.89 to 0.91 for TN; <i>R</i><sup>2</sup> = 0.53 to 0.84 for TP) and provided insights into potential processes governing how wetlands influence watershed-scale TN and TP concentrations. Specifically, flowpath variables describing flow-attenuating environments, for example, subsurface transport compared to overland flowpaths, were related to lower TN and TP concentrations. Frequent hydrological connections from wetlands to streams were also linked to low TP concentrations, which likely suggests a nutrient source limitation in some areas of the UMRB. Consideration of wetland flowpaths could inform management and conservation activities designed to reduce nutrient export to downstream waters.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"59 1","pages":"1162-1179"},"PeriodicalIF":2.6,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10750867/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63206300","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}
Victoria Robinson, Reza Ershadnia, Mohamad Reza Soltanian, Mojdeh Rasoulzadeh, Gregory M. Guthrie
{"title":"Long short-term memory model for predicting groundwater level in Alabama","authors":"Victoria Robinson, Reza Ershadnia, Mohamad Reza Soltanian, Mojdeh Rasoulzadeh, Gregory M. Guthrie","doi":"10.1111/1752-1688.13170","DOIUrl":"10.1111/1752-1688.13170","url":null,"abstract":"<p>Groundwater serves as a primary source of public-water and agricultural supply in many areas of Alabama, in particular during drought periods. Long-term climatic models for the southeastern United States indicate that the region will be subjected to more intense and more frequent precipitation events, with no overall change in the amount of precipitation, resulting in increased runoff and reduced aquifer recharge. Reliable prediction of groundwater levels would be beneficial to water resources decision makers and stakeholders especially for time-sensitive decisions. This paper uses a compound application of continuous wavelet transform (CWT) analysis and long short-term memory (LSTM) framework to address the major question with regards to groundwater level: “how long does it take for groundwater to respond to major precipitation events and what is the magnitude of the response?” CWT analysis is used to answer the “how long” part in this question, while the LSTM is used to answer the “what is the magnitude” part of the question. The insights from CWT analysis related to the short-term and long-term response in groundwater level were used to set the parameters of the LSTM model. The LSTM model uses daily groundwater levels, precipitation, and maximum/minimum temperatures as input data. The model was able to provide predictions within a 95% confidence interval of actual groundwater levels. The findings of this study suggest a workflow for groundwater level forecasting in the wells of Alabama given a minimum amount of easy-to-measure and widely available data.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"60 1","pages":"226-246"},"PeriodicalIF":2.4,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135483064","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}
Forrest F. Williams, Peter L. Moore, Jade V. Allen, Thomas Isenhart, John T. Thomas, John L. Kovar, Keith Schilling
{"title":"Sediment and phosphorus contributions from eroding banks in a large intensively managed watershed in western Iowa, United States","authors":"Forrest F. Williams, Peter L. Moore, Jade V. Allen, Thomas Isenhart, John T. Thomas, John L. Kovar, Keith Schilling","doi":"10.1111/1752-1688.13164","DOIUrl":"10.1111/1752-1688.13164","url":null,"abstract":"<p>In this study, a new remote sensing tool was used in conjunction with sampling of river bank sediments to map channel migration patterns and estimate the net contribution of bank erosion to the sediment and phosphorus (P) budget of the Nishnabotna River in southwestern Iowa. Between the years 2009 and 2018, we found that at least 1.81 ± 0.57 × 10<sup>7</sup> Mg of sediment and 8.26 ± 2.5 × 10<sup>3</sup> Mg of P entered the Nishnabotna River due to channel migration. This equates to 0.87 Mg of sediment per meter of channel per year and 0.40 kg of P per meter of channel per year. Barring additional deposition elsewhere in the river corridor, these values represent as much as 77% of annual suspended sediment and 46% of the annual P export from the watershed. Our results also indicate that the contribution of net sediment and P volume loss by stream order increases sharply from third to sixth order, even though the total channel length is much smaller in the higher orders. These results suggest that bank erosion is an important source of sediment and P within the watershed and that future attempts to decrease riparian exports of sediment and P should focus on high-order reaches.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"60 1","pages":"148-162"},"PeriodicalIF":2.4,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.13164","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136152334","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}