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Muneer MA, Chen X, Wang H, Munir MZ, Afridi MS, Yan X, Ji B, Li W, Wu L, Zheng C. Unraveling two decades of phyllosphere endophytes: tracing research trends and insights through visualized knowledge maps, with emphasis on microbial interactions as emerging frontiers. STRESS BIOLOGY 2024; 4:12. [PMID: 38319560 PMCID: PMC10847081 DOI: 10.1007/s44154-024-00148-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/07/2024] [Indexed: 02/07/2024]
Abstract
Phyllosphere endophytes play a critical role in a myriad of biological functions, such as maintaining plant health and overall fitness. They play a determinative role in crop yield and quality by regulating vital processes, such as leaf functionality and longevity, seed mass, apical growth, flowering, and fruit development. This study conducted a comprehensive bibliometric analysis aiming to review the prevailing research trajectories in phyllosphere endophytes and harness both primary areas of interest and emerging challenges. A total of 156 research articles on phyllosphere endophytes, published between 2002 and 2022, were retrieved from the Web of Science Core Collection (WoSCC). A systematic analysis was conducted using CiteSpace to visualize the evolution of publication frequency, the collaboration network, the co-citation network, and keywords co-occurrence. The findings indicated that initially, there were few publications on the topic of phyllosphere endophytes. However, from 2011 onwards, there was a notable increase in the number of publications on phyllosphere endophytes, gaining worldwide attention. Among authors, Arnold, A Elizabeth is widely recognized as a leading author in this research area. In terms of countries, the USA and China hold the highest rankings. As for institutional ranking, the University of Arizona is the most prevalent and leading institute in this particular subject. Collaborative efforts among the authors and institutions tend to be confined to small groups, and a large-scale collaborative network needs to be established. This study identified the influential journals, literature, and hot research topics. These findings also highlight the interconnected nature of key themes, e.g., phyllosphere endophyte research revolves around the four pillars: diversity, fungal endophytes, growth, and endophytic fungi. This study provides an in-depth perspective on phyllosphere endophytes studies, revealing the identification of biodiversity and microbial interaction of phyllosphere endophytes as the principal research frontiers. These analytical findings not only elucidate the recent trajectory of phyllosphere endophyte research but also provide invaluable insights for similar studies and their potential applications on a global scale.
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Affiliation(s)
- Muhammad Atif Muneer
- International Magnesium Institute, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaohui Chen
- Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention; Anhui Province Engineering and Technology Research Center of Intelligent Manufacture and Efficient Utilization of Green Phosphorus Fertilizer, College of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Hexin Wang
- Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention; Anhui Province Engineering and Technology Research Center of Intelligent Manufacture and Efficient Utilization of Green Phosphorus Fertilizer, College of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China
| | - Muhammad Zeeshan Munir
- School of Environment and Energy, Peking University Shenzhen Graduate School, 2199, Lishui Rd, Shenzhen, 518055, China
| | - Muhammad Siddique Afridi
- Department of Plant Pathology, Federal University of Lavras (UFLA), Lavras, MG, CEP 37200-900, Brazil
| | - Xiaojun Yan
- International Magnesium Institute, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Baoming Ji
- College of Grassland Science, Beijing Forestry University, Beijing, China
| | - Wenqing Li
- Fujian Institute of Tobacco Sciences, Fuzhou, 350013, China
| | - Liangquan Wu
- International Magnesium Institute, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Chaoyuan Zheng
- International Magnesium Institute, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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Mullai P, Vishali S, Sambavi SM, Dharmalingam K, Yogeswari MK, Vadivel Raja VC, Bharathiraja B, Bayar B, Abubackar HN, Al Noman MA, Rene ER. Energy generation from bioelectrochemical techniques: Concepts, reactor configurations and modeling approaches. CHEMOSPHERE 2023; 342:139950. [PMID: 37648163 DOI: 10.1016/j.chemosphere.2023.139950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
The process industries play a significant role in boosting the economy of any nation. However, poor management in several industries has been posing worrisome threats to an environment that was previously immaculate. As a result, the untreated waste and wastewater discarded by many industries contain abundant organic matter and other toxic chemicals. It is more likely that they disrupt the proper functioning of the water bodies by perturbing the sustenance of many species of flora and fauna occupying the different trophic levels. The simultaneous threats to human health and the environment, as well as the global energy problem, have encouraged a number of nations to work on the development of renewable energy sources. Hence, bioelectrochemical systems (BESs) have attracted the attention of several stakeholders throughout the world on many counts. The bioelectricity generated from BESs has been recognized as a clean fuel. Besides, this technology has advantages such as the direct conversion of substrate to electricity, and efficient operation at ambient and even low temperatures. An overview of the BESs, its important operating parameters, bioremediation of industrial waste and wastewaters, biodegradation kinetics, and artificial neural network (ANN) modeling to describe substrate removal/elimination and energy production of the BESs are discussed. When considering the potential for use in the industrial sector, certain technical issues of BES design and the principal microorganisms/biocatalysts involved in the degradation of waste are also highlighted in this review.
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Affiliation(s)
- P Mullai
- Department of Chemical Engineering, Faculty of Engineering and Technology, Annamalai University, Annamalai Nagar, 608 002, Tamil Nadu, India.
| | - S Vishali
- Department of Chemical Engineering, SRM Institute of Science and Engineering, Kattankulathur, 603 203, Tamil Nadu, India.
| | - S M Sambavi
- Department of Chemical and Biological Engineering, Energy Engineering with Industrial Management, University of Sheffield, Sheffield, United Kingdom.
| | - K Dharmalingam
- Department of Biotechnology, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad, Telangana, India.
| | - M K Yogeswari
- Department of Chemical Engineering, Faculty of Engineering and Technology, Annamalai University, Annamalai Nagar, 608 002, Tamil Nadu, India.
| | - V C Vadivel Raja
- Department of Chemical Engineering, Faculty of Engineering and Technology, Annamalai University, Annamalai Nagar, 608 002, Tamil Nadu, India.
| | - B Bharathiraja
- Vel Tech High Tech Dr. Rangarajan Dr.Sakunthala Engineering College, Chennai, 600062, Tamil Nadu, India.
| | - Büşra Bayar
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal.
| | - Haris Nalakath Abubackar
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República (EAN), 2780-157 Oeiras, Portugal.
| | - Md Abdullah Al Noman
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands.
| | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands.
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Puggioni G, Milia S, Unali V, Ardu R, Tamburini E, Balaguer MD, Pous N, Carucci A, Puig S. Effect of hydraulic retention time on the electro-bioremediation of nitrate in saline groundwater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157236. [PMID: 35810909 DOI: 10.1016/j.scitotenv.2022.157236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/04/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
Bioelectrochemical systems (BES) have proven their capability to treat nitrate-contaminated saline groundwater and simultaneously recover value-added chemicals (such as disinfection products) within a circular economy-based approach. In this study, the effect of the hydraulic retention time (HRT) on nitrate and salinity removal, as well as on free chlorine production, was investigated in a 3-compartment BES working in galvanostatic mode with the perspective of process intensification and future scale-up. Reducing the HRT from 30.1 ± 2.3 to 2.4 ± 0.2 h led to a corresponding increase in nitrate removal rates (from 17 ± 1 up to 131 ± 1 mgNO3--N L-1d-1), although a progressive decrease in desalination efficiency (from 77 ± 13 to 12 ± 2 %) was observed. Nitrate concentration and salinity close to threshold limits indicated by the World Health Organization for drinking water, as well as significant chlorine production were achieved with an HRT of 4.9 ± 0.4 h. At such HRT, specific energy consumption was low (6.8·10-2 ± 0.3·10-2 kWh g-1NO3--Nremoved), considering that the supplied energy supports three processes simultaneously. A logarithmic equation correlated well with nitrate removal rates at the applied HRTs and may be used to predict BES behaviour with different HRTs. The bacterial community of the bio-cathode under galvanostatic mode was dominated by a few populations, including the genera Rhizobium, Bosea, Fontibacter and Gordonia. The results provide useful information for the scale-up of BES treating multi-contaminated groundwater.
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Affiliation(s)
- Giulia Puggioni
- University of Cagliari, Department of Civil-Environmental Engineering and Architecture (DICAAR), Via Marengo 2-09123, Cagliari, Italy; Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
| | - Stefano Milia
- National Research Council of Italy, Institute of Environmental Geology and Geoengineering (CNR-IGAG), Via Marengo 2-09123, Cagliari, Italy.
| | - Valentina Unali
- National Research Council of Italy, Institute of Environmental Geology and Geoengineering (CNR-IGAG), Via Marengo 2-09123, Cagliari, Italy
| | - Riccardo Ardu
- University of Cagliari, Department of Civil-Environmental Engineering and Architecture (DICAAR), Via Marengo 2-09123, Cagliari, Italy; DiSB, Department of Biomedical Sciences, University of Cagliari, Cittadella universitaria, 09042 Monserrato, CA, Italy
| | - Elena Tamburini
- DiSB, Department of Biomedical Sciences, University of Cagliari, Cittadella universitaria, 09042 Monserrato, CA, Italy
| | - M Dolors Balaguer
- Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
| | - Narcís Pous
- Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
| | - Alessandra Carucci
- University of Cagliari, Department of Civil-Environmental Engineering and Architecture (DICAAR), Via Marengo 2-09123, Cagliari, Italy; National Research Council of Italy, Institute of Environmental Geology and Geoengineering (CNR-IGAG), Via Marengo 2-09123, Cagliari, Italy
| | - Sebastià Puig
- Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
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An Overview to Technical Solutions for Molybdenum Removal: Perspective from the Analysis of the Scientific Literature on Molybdenum and Drinking Water (1990–2019). WATER 2022. [DOI: 10.3390/w14132108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A bibliometric analysis using the Scopus database was performed to investigate the research documents published from 1990 to 2019 in scientific sources related to molybdenum in drinking water and determine the quantitative characteristics of the research in this period. The results from the analysis revealed that the number of publications was maintained at a regular production of around 5 papers per year until 2009, followed by a fast linear increase in the production in the period from 2010 to 2016 (29 papers in 2016), but the scientific production regarding this topic was reduced in 2017 and 2018 to recover the production obtained in 2016 once again in 2019. The total contribution of the three most productive countries (USA, China and India, respectively) accounted for around 50% of the total number of publications. Environmental Science was the most common subject (51.4% contribution), followed by Chemistry (26.7% contribution). The research efforts targeted toward the search for technical solutions for molybdenum removal from water are not as important as the ones focused on the identification of molybdenum-polluted water bodies and the analysis of the health effects of the intake of molybdenum. Nevertheless, examples of technological treatments to remove molybdenum from the aqueous solution include the use of adsorption and ion exchange; coagulation, flocculation and precipitation followed by filtration; membrane technologies and biological treatments.
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Abejón R. A Bibliometric Analysis of Research on Selenium in Drinking Water during the 1990-2021 Period: Treatment Options for Selenium Removal. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:5834. [PMID: 35627373 PMCID: PMC9140891 DOI: 10.3390/ijerph19105834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/01/2022] [Accepted: 05/04/2022] [Indexed: 02/01/2023]
Abstract
A bibliometric analysis based on the Scopus database was carried out to summarize the global research related to selenium in drinking water from 1990 to 2021 and identify the quantitative characteristics of the research in this period. The results from the analysis revealed that the number of accumulated publications followed a quadratic growth, which confirmed the relevance this research topic is gaining during the last years. High research efforts have been invested to define safe selenium content in drinking water, since the insufficient or excessive intake of selenium and the corresponding effects on human health are only separated by a narrow margin. Some important research features of the four main technologies most frequently used to remove selenium from drinking water (coagulation, flocculation and precipitation followed by filtration; adsorption and ion exchange; membrane-based processes and biological treatments) were compiled in this work. Although the search of technological options to remove selenium from drinking water is less intensive than the search of solutions to reduce and eliminate the presence of other pollutants, adsorption was the alternative that has received the most attention according to the research trends during the studied period, followed by membrane technologies, while biological methods require further research efforts to promote their implementation.
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Affiliation(s)
- Ricardo Abejón
- Departamento de Ingeniería Química, Universidad de Santiago de Chile (USACH), Av. Libertador Bernardo O'Higgins 3363, Estación Central, Santiago 9170019, Chile
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Paquete CM, Rosenbaum MA, Bañeras L, Rotaru AE, Puig S. Let's chat: Communication between electroactive microorganisms. BIORESOURCE TECHNOLOGY 2022; 347:126705. [PMID: 35065228 DOI: 10.1016/j.biortech.2022.126705] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
Electroactive microorganisms can exchange electrons with other cells or conductive interfaces in their extracellular environment. This property opens the way to a broad range of practical biotechnological applications, from manufacturing sustainable chemicals via electrosynthesis, to bioenergy, bioelectronics or improved, low-energy demanding wastewater treatments. Besides, electroactive microorganisms play key roles in environmental bioremediation, significantly impacting process efficiencies. This review highlights our present knowledge on microbial interactions promoting the communication between electroactive microorganisms in a biofilm on an electrode in bioelectrochemical systems (BES). Furthermore, the immediate knowledge gaps that must be closed to develop novel technologies will also be acknowledged.
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Affiliation(s)
- Catarina M Paquete
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-156 Oeiras, Portugal
| | - Miriam A Rosenbaum
- Bio Pilot Plant, Leibniz Institute for Natural Product Research and Infection Biology - Hans-Knöll-Institute, Beutenbergstrasse 11a, Jena, Germany; Faculty of Biological Sciences, Friedrich Schiller University, Jena, Germany
| | - Lluís Bañeras
- Group of Molecular Microbial Ecology, Institute of Aquatic Ecology, University of Girona, C/ Maria Aurèlia Capmany, 40, E-17003 Girona, Spain
| | - Amelia-Elena Rotaru
- Faculty of Natural Sciences, Department of Biology, University of Southern Denmark, Odense, Denmark
| | - Sebastià Puig
- LEQUiA, Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain.
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Mapping Research on Microbial Fuel Cells in Wastewater Treatment: A Co-Citation Analysis. Processes (Basel) 2022. [DOI: 10.3390/pr10010179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Microbial fuel cells (MFCs) are promising technologies, aiming at treating different types of industrial and domestic wastewater. In recent years, more and more publications focusing on wastewater treatment have been published. Based on the retrieval of publications from Web of Science Core Collection database, the new emerging trends of microbial fuel cells in wastewater treatment was evaluated with a scientometric analysis method from 1995 to 2020. All publications downloaded from (WOS) were screened by inclusion criteria, and 2233 publications were obtained for further analysis. Document co-citation and burst detection of MFCs in wastewater treatment were analyzed and visualized by software of CiteSpace. Our study indicated that “Environmental Science” is the most popular discipline, while the journal of Bioresource Technology published the greatest quantity of articles in the field of MFCs applied wastewater treatment. China and the Chinese Academy of Science are the most productive country and institution, respectively. “Azo dye” has become the new research topic, which indicates the application area and the development of MFCs. The performance of MFCs for wastewater treatment has been widely discussed. The findings of this study may ameliorate the researcher in seizing the frontier of MFCs in wastewater treatment.
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Puggioni G, Milia S, Dessì E, Unali V, Pous N, Balaguer MD, Puig S, Carucci A. Combining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production. WATER RESEARCH 2021; 206:117736. [PMID: 34656821 DOI: 10.1016/j.watres.2021.117736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 09/14/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Groundwater pollution and salinization have increased steadily over the years. As the balance between water demand and availability has reached a critical level in many world regions, a sustainable approach for the management (including recovery) of saline water resources has become essential. A 3-compartment cell configuration was tested for a new application based on the simultaneous denitrification and desalination of nitrate-contaminated saline groundwater and the recovery of value-added chemicals. The cells were initially operated in potentiostatic mode to promote autotrophic denitrification at the bio-cathode, and then switched to galvanostatic mode to improve the desalination of groundwater in the central compartment. The average nitrate removal rate achieved was 39±1 mgNO3--N L-1 d-1, and no intermediates (i.e., nitrite and nitrous oxide) were observed in the effluent. Groundwater salinity was considerably reduced (average chloride removal was 63±5%). Within a circular economy approach, part of the removed chloride was recovered in the anodic compartment and converted into chlorine, which reached a concentration of 26.8±3.4 mgCl2 L-1. The accumulated chlorine represents a value-added product, which could also be dosed for disinfection in water treatment plants. With this cell configuration, WHO and European legislation threshold limits for nitrate (11.3 mgNO3--N L-1) and salinity (2.5 mS cm-1) in drinking water were met, with low specific power consumptions (0.13±0.01 kWh g-1NO3--Nremoved). These results are promising and pave the ground for successfully developing a sustainable technology to tackle an urgent environmental issue.
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Affiliation(s)
- Giulia Puggioni
- University of Cagliari - Department of Civil-Environmental Engineering and Architecture (DICAAR), Via Marengo 2 - 09123, Cagliari, Italy; Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
| | - Stefano Milia
- National Research Council of Italy - Institute of Environmental Geology and Geoengineering (CNR-IGAG), Via Marengo 2 - 09123, Cagliari, Italy.
| | - Emma Dessì
- University of Cagliari - Department of Civil-Environmental Engineering and Architecture (DICAAR), Via Marengo 2 - 09123, Cagliari, Italy
| | - Valentina Unali
- National Research Council of Italy - Institute of Environmental Geology and Geoengineering (CNR-IGAG), Via Marengo 2 - 09123, Cagliari, Italy
| | - Narcís Pous
- Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
| | - M Dolors Balaguer
- Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
| | - Sebastià Puig
- Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, Carrer Maria Aurelia Capmany, 69, E-17003 Girona, Spain
| | - Alessandra Carucci
- University of Cagliari - Department of Civil-Environmental Engineering and Architecture (DICAAR), Via Marengo 2 - 09123, Cagliari, Italy; National Research Council of Italy - Institute of Environmental Geology and Geoengineering (CNR-IGAG), Via Marengo 2 - 09123, Cagliari, Italy
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The Development Trend and Research Frontiers of Distributed Hydrological Models—Visual Bibliometric Analysis Based on Citespace. WATER 2021. [DOI: 10.3390/w13020174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Based on the bibliometric and data visualization analysis software Citespace, this study carried out document statistics and information mining on the Web of Science database and characterized the distributed hydrological model knowledge system from 1986 to 2019. The results show a few things: (1) from 1986 to 2019, the United States and China accounted for 41% of the total amount of publications, and they were the main force in the field of distributed hydrological model research; (2) field research involves multiple disciplines, mainly covering water resources, geology, earth sciences, environmental sciences, ecology and engineering; (3) the frontier of field research has shifted from using distributed hydrological models in order to simulate runoff and nonpoint source environmental responses to the coupling of technologies and products that can obtain high-precision, high-resolution data with distributed hydrological models. (4) Affected by climate warming, the melting of glaciers has accelerated, and the spatial distribution of permafrost and water resources have changed, which has caused a non-negligible impact on the hydrological process. Therefore, the development of distributed hydrological models suitable for alpine regions and the response of hydrological processes to climate change have also become important research directions at present.
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Olisah C, Adams JB. Systematic mapping of organophosphate contaminant (OPC) research trends between 1990 and 2018. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:3481-3505. [PMID: 32435924 DOI: 10.1007/s10653-020-00594-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
Since the addition of polybrominated diphenyls and organochlorine pesticides (OCPs) to the world banned list, toxic organophosphate contaminants (OPCs) such as organophosphate flame retardants and organophosphate pesticides have been, respectively, used as substitutes. These chemicals are reported to be more toxic than their halogenated counterparts. It is rare to find a study that focuses on visualising the publication trends of these chemical classes. In this study, we employed a bibliometric model to systematically map research activities between 1990 and 2018 using OPC articles retrieved from the WoS and Scopus databases. A total of 1090 articles were retrieved from the hybrid databases with an article/author and author/article ratio of 0.33 and 3.02, respectively. Articles on OPC studies were positively correlated with the number of years (r2 = 0.96; y = 0.23x2 - 3.82x + 27.90) suggesting an increase in the number of articles on this subject in future. The USA ranked first in terms of articles (n = 245) and citations (n = 12,922) followed by China and India (203 and 89 articles, respectively). Articles from China and the USA had strong collaboration with other countries. Research priorities and top author keywords included pesticides (n = 112), organophosphate (n = 83) and acetylcholinesterase (n = 60) and were also well represented in keywords-plus. Developed countries had higher outputs compared to developing countries. It was observed that from our thematic literature classifications, human toxicity, ecotoxicological impacts, and environmental monitoring of OPCs were of greater importance to scholars, thus indicating the direction of future research. Futuristic studies need to foster partnership with policymakers, journalists, consultants, farmers, artisans and community workers on OPC research. This will not only enhance scientific communication and community engagement but will also increase the awareness of these pollutants to the general public.
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Affiliation(s)
- Chijioke Olisah
- Botany Department, Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, 6031, South Africa.
| | - Janine B Adams
- Botany Department, Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, 6031, South Africa
- DST/NRF Research Chair in Shallow Water Ecosystem, Nelson Mandela University, Port Elizabeth, 6031, South Africa
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Abstract
Green infrastructure (GI) is a nature-based solution that encompasses all actions that rely on ecosystems and the services they provide to respond to various societal challenges such as climate change, food security or disaster risk. The objective of this work is to analyze the state of the art and latest trends in research on GI related to the water cycle for the period 2002–2019. For this purpose, a bibliometric study is carried out taking as reference the two most important scientific databases, Web of Science (WoS) and Scopus. The results show that, as of 2013, there is an exponential increase in the number of publications. This is due to the fact that significant regions of the planet, such as Europe, have adopted strategies aimed at promoting the use of GI since 2013. The keyword analysis points out that ecosystem services is the most relevant concept, which shows the capacity of these infrastructures to facilitate multiple goods and services related to the water cycle. New lines of research are opened up which are based on the analysis of other elements of GI related to water, such as groundwater.
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Comments on: Li et al. (2019) “Bioelectrochemical Systems for Groundwater Remediation: The Development Trend and Research Front Revealed by Bibliometric Analysis” Water, 11, 1532. WATER 2020. [DOI: 10.3390/w12061586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Li et al. (2019) used inappropriate searching words and method to publish a bibliometric paper in Water. The results show a huge difference from the results by using an appropriate method. This comment points out each of problems.
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