Journal of The American Water Resources Association最新文献

{"title":"Editors' choice—Outstanding reviewers—2023","authors":"","doi":"10.1111/1752-1688.13180","DOIUrl":"https://doi.org/10.1111/1752-1688.13180","url":null,"abstract":"<p>The <i>Journal of the American Water Resources Association</i> recognizes the critical role of reviewers in maintaining high standards of the journal and improving the quality of published papers. Starting back in 2020, we have been recognizing those reviewers who have gone above and beyond in providing extensive and comprehensive reviews. The reviewers have been identified by the associate editors during the review process. Our heartfelt thanks to these reviewers for their selfless service to the journal and the scientific community at large.</p><p>John Abatzoglou</p><p>Nick Martin</p><p>Michael Warner</p><p>Shan Zuidema</p><p>Tamie L. Veith</p><p>Jianshi Zhao</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"59 6","pages":"1571"},"PeriodicalIF":2.4,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.13180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138558272","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":"Reviewer Index—2023","authors":"","doi":"10.1111/1752-1688.13179","DOIUrl":"https://doi.org/10.1111/1752-1688.13179","url":null,"abstract":"&lt;p&gt;We gratefully acknowledge the following reviewers who have generously donated their time and expertise to &lt;i&gt;JAWRA&lt;/i&gt;. The list includes all reviewers who supported the journal between October 1, 2022 and September 30, 2023.&lt;/p&gt;&lt;p&gt;Abatzoglou, John&lt;/p&gt;&lt;p&gt;Abdallah, Adel&lt;/p&gt;&lt;p&gt;Abdi, Babak&lt;/p&gt;&lt;p&gt;Adnan, Dr. Muhammad&lt;/p&gt;&lt;p&gt;Ahmadisharaf, Ebrahim&lt;/p&gt;&lt;p&gt;Alamdari, Nasrin&lt;/p&gt;&lt;p&gt;Alarcon, Vladimir J.&lt;/p&gt;&lt;p&gt;Aryal, Niroj&lt;/p&gt;&lt;p&gt;Asarian, Joshua&lt;/p&gt;&lt;p&gt;Avesani, Diego&lt;/p&gt;&lt;p&gt;Ayers, Jessica&lt;/p&gt;&lt;p&gt;Babbar-Sebens, Meghna&lt;/p&gt;&lt;p&gt;Ban, Zhaoxin&lt;/p&gt;&lt;p&gt;Banerji, Aabir&lt;/p&gt;&lt;p&gt;Beechie, Tim&lt;/p&gt;&lt;p&gt;Bennett, Katrina&lt;/p&gt;&lt;p&gt;Bhaskar, Aditi&lt;/p&gt;&lt;p&gt;Bledsoe, Brian&lt;/p&gt;&lt;p&gt;Blumenshine, Steve&lt;/p&gt;&lt;p&gt;Boland, John&lt;/p&gt;&lt;p&gt;Bosch, Darrell&lt;/p&gt;&lt;p&gt;Broman, Daniel&lt;/p&gt;&lt;p&gt;Brookfield, Andrea&lt;/p&gt;&lt;p&gt;Brown, Rocko&lt;/p&gt;&lt;p&gt;Cao, Qian&lt;/p&gt;&lt;p&gt;Cao, Zhigang&lt;/p&gt;&lt;p&gt;Carlson Mazur, Martha&lt;/p&gt;&lt;p&gt;Castellini, Mirko&lt;/p&gt;&lt;p&gt;Castro-Bolinaga, Celso&lt;/p&gt;&lt;p&gt;Chegini, Taher&lt;/p&gt;&lt;p&gt;Chen, Feng&lt;/p&gt;&lt;p&gt;Chen, Weibo&lt;/p&gt;&lt;p&gt;Cherry, Mikaela&lt;/p&gt;&lt;p&gt;Choat, Ben&lt;/p&gt;&lt;p&gt;Christensen, Jay&lt;/p&gt;&lt;p&gt;Collick, Amy&lt;/p&gt;&lt;p&gt;Compton, Jana&lt;/p&gt;&lt;p&gt;Curran, Janet&lt;/p&gt;&lt;p&gt;Dahl, Travis&lt;/p&gt;&lt;p&gt;Dallison, Richard&lt;/p&gt;&lt;p&gt;Debaere, Peter&lt;/p&gt;&lt;p&gt;Delworth, Thomas L.&lt;/p&gt;&lt;p&gt;Dey, Sayan&lt;/p&gt;&lt;p&gt;Du, Erhu&lt;/p&gt;&lt;p&gt;Duan, Huan-Feng&lt;/p&gt;&lt;p&gt;Duan, Kai&lt;/p&gt;&lt;p&gt;Eekhout, Joris&lt;/p&gt;&lt;p&gt;Endreny, Theodore&lt;/p&gt;&lt;p&gt;Evenson, Grey R.&lt;/p&gt;&lt;p&gt;Fairfax, Emily&lt;/p&gt;&lt;p&gt;Fakharian, Ahmad&lt;/p&gt;&lt;p&gt;Farmer, William&lt;/p&gt;&lt;p&gt;Ferencz, Stephen&lt;/p&gt;&lt;p&gt;Flanagan, Dennis&lt;/p&gt;&lt;p&gt;Fleming, Sean&lt;/p&gt;&lt;p&gt;Förster, Kristian&lt;/p&gt;&lt;p&gt;Frei, Allan&lt;/p&gt;&lt;p&gt;Freudiger, Daphné&lt;/p&gt;&lt;p&gt;Fullerton, Aimee&lt;/p&gt;&lt;p&gt;Garg, Manoj Chandra Garg&lt;/p&gt;&lt;p&gt;Ghazi, Babak&lt;/p&gt;&lt;p&gt;Giese, Markus&lt;/p&gt;&lt;p&gt;Gilley, John&lt;/p&gt;&lt;p&gt;Goeking, Sara&lt;/p&gt;&lt;p&gt;Goodrich, David&lt;/p&gt;&lt;p&gt;Goodrum, Gregory&lt;/p&gt;&lt;p&gt;Gordu, Fatih&lt;/p&gt;&lt;p&gt;Graham, Jennifer&lt;/p&gt;&lt;p&gt;Gray, Geneva&lt;/p&gt;&lt;p&gt;Grigg, Neil&lt;/p&gt;&lt;p&gt;Gronewold, Andrew&lt;/p&gt;&lt;p&gt;Guertault, Lucie&lt;/p&gt;&lt;p&gt;Gupta, Abhinav&lt;/p&gt;&lt;p&gt;Gupta, Rishabh&lt;/p&gt;&lt;p&gt;Guthrie, Gregory&lt;/p&gt;&lt;p&gt;Gutzler, David&lt;/p&gt;&lt;p&gt;Haas, Henrique&lt;/p&gt;&lt;p&gt;Hacker, Miriam&lt;/p&gt;&lt;p&gt;Hallum, Douglas&lt;/p&gt;&lt;p&gt;Han, Bangshuai&lt;/p&gt;&lt;p&gt;Harmel, R.&lt;/p&gt;&lt;p&gt;Hayes, John&lt;/p&gt;&lt;p&gt;Hecht, Jory&lt;/p&gt;&lt;p&gt;Helmers, Matthew&lt;/p&gt;&lt;p&gt;Hersh, Eric&lt;/p&gt;&lt;p&gt;Hirsch, Robert&lt;/p&gt;&lt;p&gt;Horsburgh, Jeffery&lt;/p&gt;&lt;p&gt;Huffman, George&lt;/p&gt;&lt;p&gt;Hussain, Mubshar&lt;/p&gt;&lt;p&gt;Jackson, C.&lt;/p&gt;&lt;p&gt;Jakubauskas, Mark&lt;/p&gt;&lt;p&gt;Jeong, Hanseok&lt;/p&gt;&lt;p&gt;Jepson, Wendy&lt;/p&gt;&lt;p&gt;Jha, Manoj&lt;/p&gt;&lt;p&gt;Jiang, Lingmei&lt;/p&gt;&lt;p&gt;Joeckel, Matt&lt;/p&gt;&lt;p&gt;Johnson, Thomas&lt;/p&gt;&lt;p&gt;Jones, Chris&lt;/p&gt;&lt;p&gt;Jones, Julia&lt;/p&gt;&lt;p&gt;Jung, Kichul&lt;/p&gt;&lt;p&gt;Kao, Shih-Chieh&lt;/p&gt;&lt;p&gt;Kaplan, David&lt;/p&gt;&lt;p&gt;Kelleher, Christa&lt;/p&gt;&lt;p&gt;Kelly, Walton&lt;/p&gt;&lt;p&gt;Khan, Manas&lt;/p&gt;&lt;p&gt;Kiffney, Peter&lt;/p&gt;&lt;p&gt;Kikoyo, Duncan&lt;/p&gt;&lt;p&gt;Kim, Dong-Hyun&lt;/p&gt;&lt;p&gt;Kim, Wonsik&lt;/p&gt;&lt;p&gt;King, Tyler&lt;/p&gt;&lt;p&gt;Kinnell, P. I. A.&lt;/p&gt;&lt;p&gt;Kisekka, Isaya&lt;/p&gt;&lt;p&gt;Knightes, Christopher&lt;/p&gt;&lt;p&gt;Kolok, Alan&lt;/p&gt;&lt;p&gt;Kukal, Meetpal&lt;/p&gt;&lt;p&gt;Kumar, Amit&lt;/p&gt;&lt;p&gt;Kumar, Sujay&lt;/p&gt;&lt;p&gt;Kurylyk, Barret&lt;/p&gt;&lt;p&gt;Larsson, Rolf&lt;/p&gt;&lt;p&gt;Lee, Jiwan&lt;/p&gt;&lt;p&gt;Lee, Yonggwan&lt;/p&gt;&lt;p&gt;Li, Changjia&lt;/p&gt;&lt;p&gt;Li, Hong-Yi&lt;/p&gt;&lt;p&gt;Li, Zoe&lt;/p&gt;&lt;p&gt;Lin, Zhulu&lt;/p&gt;&lt;p&gt;Liu, Gang&lt;/p&gt;&lt;p&gt;Liu, Huan&lt;/p&gt;&lt;p&gt;Liu, Ning&lt;/p&gt;&lt;p&gt;Lu, Weisheng&lt;/p&gt;&lt;p&gt;Luiz-Silva, Wanderson&lt;/p&gt;&lt;p&gt;Luo, Hao&lt;/p&gt;&lt;p&gt;Mack, Elizabeth&lt;/p&gt;&lt;p&gt;Magne","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":"59 6","pages":"1569-1570"},"PeriodicalIF":2.4,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.13179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138558271","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":"Trout bioenergetics as a process-based tool to estimate ecological risk in a regulated river","authors":"Suzanne J. Rhoades,&nbsp;Timothy J. Caldwell,&nbsp;Scott McBain,&nbsp;Rene Henery,&nbsp;Natalie Stauffer-Olsen,&nbsp;Tara McKinnon,&nbsp;Gabriel J. Rossi,&nbsp;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 &gt;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,&nbsp;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,&nbsp;Rajith Mukundan,&nbsp;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 (UV₂₅₄) 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 UV₂₅₄. In the second component, HAA5fp and TTHMfp are predicted from UV₂₅₄. The approach is successfully demonstrated for two source water streams of the New York City water supply system (<i>R</i>² 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}

{"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}

{"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}

{"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,&nbsp;Kai Wang,&nbsp;Sheng Li,&nbsp;Dengke Qing,&nbsp;Weizheng Gao,&nbsp;Dehong Li,&nbsp;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}

{"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>² = 0.89 to 0.91 for TN; <i>R</i>² = 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}