Nature water最新文献

{"title":"Impact of heteroaggregation between microplastics and algae on particle vertical transport","authors":"Francesco Parrella, Stefano Brizzolara, Markus Holzner, Denise M. Mitrano","doi":"10.1038/s44221-024-00248-z","DOIUrl":"10.1038/s44221-024-00248-z","url":null,"abstract":"Understanding the impacts of microplastics (MPs) on aqueous environments requires understanding their transport dynamics and how their presence affects other natural processes and cycles. In this context, one aspect to consider is how MPs interact with freshwater snow (FWS), a mixture of algae and natural particles. FWS is one of the primary drivers of the flux of organic matter from the water surface to the bottom sediment, where zooplankton, diurnal migration, fish faecal pellets settling and turbulent mixing can also play prominent roles. Understanding how MPs and FWS heteroaggregation affects their respective settling velocities is important to assess not only MPs fate and transport but also their ecological impacts by altering FWS deposition and thereby nutrient cycling. In this present study, we obtained a mechanistic understanding of the processes controlling MPs settling dynamics and heteroaggregation with FWS and the subsequent impacts on the settling rates of both MPs and ballasted FWS. Here we used a plexiglass column equipped with a stereoscopic camera system to track the settling velocities of (1) MPs of various compositions, densities and morphologies, (2) FWS flocs and (3) MP–FWS agglomerates. For each experimental set, thousands of particles were tracked over a series of image sequences. We found that agglomerates with high-density MPs settled at least twofold faster than FWS alone, implying a much smaller residence time in the water column, except for cases with MP fibres or low-density plastics. These findings will help to refine MP fate models and, while contingent on MPs number, may impact biogeochemical cycles by changing the flux of nutrients contained in FWS to the sediment. The interactions between microplastics and freshwater snow can influence the way in which both particle types settle in freshwater environments. Advanced and automated tracking techniques show that agglomerates of the two particles settle faster than the individual components alone, underscoring the potential repercussions on biogeochemical cycles.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"541-552"},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00248-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141346928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the risk of glacial lake outburst floods in the twenty-first century","authors":"Adam Emmer","doi":"10.1038/s44221-024-00254-1","DOIUrl":"10.1038/s44221-024-00254-1","url":null,"abstract":"Mountain communities are at risk of various climate change-related disasters, including glacial lake outburst floods (GLOFs). Effective GLOF risk identification and management require a holistic consideration of the diverse controls and drivers of GLOFs. This Comment outlines primary challenges related to rapidly changing mountains and complex system response.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 7","pages":"608-610"},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Author Correction: Transboundary cooperation in infrastructure operation generates economic and environmental co-benefits in the Lancang-Mekong River Basin","authors":"Yang Yu, Yan Bo, Andrea Castelletti, Patrice Dumas, Jinyu Gao, Ximing Cai, Junguo Liu, Taher Kahil, Yoshihide Wada, Shiruo Hu, Bo Liu, Feng Zhou, Jianshi Zhao","doi":"10.1038/s44221-024-00273-y","DOIUrl":"10.1038/s44221-024-00273-y","url":null,"abstract":"","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"602-602"},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00273-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141346828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Moving from fit to fitness for governing water in the Anthropocene","authors":"Michele-Lee Moore, Lan Wang-Erlandsson, Örjan Bodin, Johan Enqvist, Fernando Jaramillo, Krisztina Jónás, Carl Folke, Patrick Keys, Steven J. Lade, Maria Mancilla Garcia, Romina Martin, Nathanial Matthews, Agnes Pranindita, Juan C. Rocha, Shuchi Vora","doi":"10.1038/s44221-024-00257-y","DOIUrl":"10.1038/s44221-024-00257-y","url":null,"abstract":"We bring together two decades of research on cross-scale spatial and temporal connectivity of water in the Anthropocene to understand the implications for institutional fit and water governance, with a focus on river basin organizations and watershed-based bodies. There is strong evidence showing how hydrological cycles are tightly coupled across larger spatial scales than they were in the past, which implies a possible expansion of the boundaries typically considered in the study and governance of water. Temporally, frequent time lags between action and consequence and the potential for increasing concurrence of extreme events pose risks for decision-makers trying to make accurate and appropriate decisions. Both cross-scale spatial and temporal connectivity create new challenges to key principles regarding participation, deliberation and collaboration in water governance. We argue for a shift from emphasizing how governance can ‘fit’ a closed, biophysical boundary towards a stronger consideration of institutional ‘fitness’ through flexibility, responsiveness and anticipatory capacity to better support water resilience and sustainability. A review of two decades of water science and water governance scholarship shows that how, when, where and why water is available and to whom is changing as global hydrological systems are being re-shaped across spatial and temporal scales.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"511-520"},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Science–practitioner partnerships for sustainable development","authors":"Rob Hope, Katrina Jane Charles, Rupert Quentin Grafton, Daniel Olago, Mashfiqus Salehin, Mohammed Abed Hossain, Rebecca Peters, Ana Gren, Tassew Woldehanna, Muhammad Ibrahim, Emdadul Hoq Chowdhury, Mohammad Monirul Alam, Kitka Goyol, Rachael McDonnell, Anna Nileshwar","doi":"10.1038/s44221-024-00255-0","DOIUrl":"10.1038/s44221-024-00255-0","url":null,"abstract":"Science funding could contribute more towards achieving the United Nations Sustainable Development Goals. Science–practitioner partnerships illustrate how a patient and outcome-based approach could improve water security for millions of vulnerable people.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"502-504"},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141355737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trends and disparities in concurrent tap water avoidance and household food insecurity among US children","authors":"Asher Y. Rosinger, Sera L. Young","doi":"10.1038/s44221-024-00261-2","DOIUrl":"10.1038/s44221-024-00261-2","url":null,"abstract":"Water insecurity (WI) is an underappreciated issue in the United States. WI co-occurs with food insecurity (FI), but little work has explored the water–food nexus experienced by children. Drawing on individual tap water avoidance, a proxy of WI, and prior-year household food security data from 2–17-year-olds in the National Health and Examination Survey (n = 18,252), we describe nationally representative trends and racial/ethnic disparities in WI and FI. Between 2005 and 2020, this WI proxy was associated with higher probability of FI with heterogeneity by race/ethnicity and income, and concurrent WI and FI more than doubled from 4.6% (95% confidence interval, 3.0–6.1) to 10.3% (8.4–12.1; P < 0.001). Compared with white children, children identifying as Black and Hispanic had 3.5 (2.6–4.7; P < 0.001) and 7.1 (5.4–9.3; P < 0.001) times the relative-risk ratios of experiencing concurrent WI and FI. The increasing prevalence of US children experiencing concurrent WI and FI alongside observed racial/ethnic disparities is of major public health concern. US children who avoid tap water, a proxy for water insecurity, were more likely to experience household food insecurity than those who did not. Concurrent water and food insecurity doubled between 2005 and 2020 with considerable racial/ethnic disparities.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 7","pages":"638-648"},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141373907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly sensitive water pollution monitoring using colloid-processed organic photodetectors","authors":"Tengfei Li, Gangjian Hu, Hua Wu, Li Ding, Jianqi Zhang, Mengjie Sun, Yawen Li, Zesheng Liu, Yuchuan Shao, Yanjun Fang, Yan Qiao, Liang Shen, Yuze Lin","doi":"10.1038/s44221-024-00247-0","DOIUrl":"10.1038/s44221-024-00247-0","url":null,"abstract":"Water stands at the heart of the Sustainable Development Goals, and risk management for clean water often requires in situ monitoring of contaminants, where a portable photodetector with high detectivity is highly desired. The emerging portable organic photodetectors (OPDs) with intrinsic flexibility and light weight, which are promising candidates for in situ water pollution monitoring, often exhibit unsatisfactory specific detectivity (D*) lower than 1013 Jones, failing to meet monitoring requirements set below safety limits (~0.01–0.1 mg l−1) for pollutant discharge. Here we present OPDs with D* as high as 4.1 × 1013 Jones made from dense and ordered polymer films via colloid processing, attributed to their substantially lower energy disorder and fewer traps than those deposited via traditional solution processing. Detectable light intensities as weak as approaching 0.1 pW cm−2 of colloid-processed OPDs (CP-OPDs) at visible to near-infra-red light are achieved, on par with the premium commercial Si photodiode and overwhelming some widely used models. Highly sensitive and accurate monitoring of trace dye pollutants/chlorophyllin A analogue in water with a detection limit of 0.02/0.05 mg l−1 (below the discharge/eutrophication standard) is successfully accomplished through the developed CP-OPDs, surpassing the commercial Si photodiode that cannot effectively respond to the concentration below the standard. Colloid processing endows OPDs with the highest detectivity among reported portable photodetectors and makes CP-OPDs superior in in situ monitoring trace contaminants in water relative to traditional methods. In situ real-time water pollution monitoring provides a fast and convenient way to detect water pollutants, but the development of detectors with high sensitivity is still challenging. Portable organic photodetectors fabricated with a colloid processing approach achieve highly sensitive and accurate monitoring of trace pollutants in water.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"577-588"},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141372172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Organic photodetectors to monitor water contaminants","authors":"Jinsong Huang","doi":"10.1038/s44221-024-00259-w","DOIUrl":"10.1038/s44221-024-00259-w","url":null,"abstract":"Organic photodetectors can be an alternative to silicon ones in detecting water contaminants, but their noise is too high due to disorder. Using pre-formed crystalline organic colloids to reduce the disorder in organic photodiodes helps to improve their performance to achieve detection of contaminants even at low concentrations.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"505-506"},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141370874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transboundary cooperation in infrastructure operation generates economic and environmental co-benefits in the Lancang-Mekong River Basin","authors":"Yang Yu, Yan Bo, Andrea Castelletti, Patrice Dumas, Jinyu Gao, Ximing Cai, Junguo Liu, Taher Kahil, Yoshihide Wada, Shiruo Hu, Bo Liu, Feng Zhou, Jianshi Zhao","doi":"10.1038/s44221-024-00246-1","DOIUrl":"10.1038/s44221-024-00246-1","url":null,"abstract":"The Lancang-Mekong River Basin is facing booming water resources infrastructure development, long-term transboundary conflicts and trade-offs between economic goals and ecosystem services provision. Optimizing the pathway towards sustainable infrastructure operation has lacked multisector-coordinated and decision behaviour-based perspectives for transboundary water systems. In this study we quantified how, and to what extent, transboundary cooperation generates economic and environmental co-benefits by jointly using a coupled simulation–optimization approach and cooperative game theoretical analysis. We found that full cooperation outweighs partial or non-cooperation modes to promote economic benefits by 3 to 21% and to minimize the losses in fishery and sediment transport from 23% and 60% to 12% and 22%, respectively. Full cooperation becomes more beneficial and stable alongside infrastructure expansion, climate change and satisfying the hydrological needs of river ecosystems. These findings underscore the importance of full cooperation for sustaining socio-environmental systems and highlight the need for a benefit reallocation mechanism and designed flow management to stabilize basin-level full cooperation in the Lancang-Mekong River Basin. This Analysis quantifies how, and to what extent, transboundary cooperation generates economic and environmental co-benefits in the Lancang-Mekong River Basin, highlighting the importance of benefit sharing for sustaining socio-environmental systems.","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 6","pages":"589-601"},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141377304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Author Correction: Energy trade tempers Nile water conflict","authors":"Mikiyas Etichia, Mohammed Basheer, Ruben Bravo, Jose Gutierrez, Atsede Endegnanew, Jose M. Gonzalez, Anthony Hurford, James Tomlinson, Eduardo Martinez, Mathaios Panteli, Julien J. Harou","doi":"10.1038/s44221-024-00264-z","DOIUrl":"10.1038/s44221-024-00264-z","url":null,"abstract":"","PeriodicalId":74252,"journal":{"name":"Nature water","volume":"2 7","pages":"697-697"},"PeriodicalIF":0.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44221-024-00264-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}