环境科学与生态学最新文献

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Application of heterogeneous Fenton-like reaction with modified zeolite for removal of antibiotics, antibiotic-resistant bacteria, and antibiotic-resistant genes from swine farm wastewater 改性沸石非均相fenton样反应去除猪场废水中抗生素、耐药细菌和耐药基因的应用
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2025-04-27 DOI: 10.1016/j.jenvman.2025.125486
Athitaya Changduang , Parinda Thayanukul , Patiparn Punyapalakul , Tawan Limpiyakorn
{"title":"Application of heterogeneous Fenton-like reaction with modified zeolite for removal of antibiotics, antibiotic-resistant bacteria, and antibiotic-resistant genes from swine farm wastewater","authors":"Athitaya Changduang ,&nbsp;Parinda Thayanukul ,&nbsp;Patiparn Punyapalakul ,&nbsp;Tawan Limpiyakorn","doi":"10.1016/j.jenvman.2025.125486","DOIUrl":"10.1016/j.jenvman.2025.125486","url":null,"abstract":"<div><div>The heterogeneous Fenton-like reaction with modified zeolite was introduced for the removal of antibiotics, antibiotic-resistant bacteria (ARB), and antibiotic-resistant genes (ARGs) to reduce environmental impact of the substance residues in swine farm effluent. The heterogeneous Fenton-like reaction with 100 g/L of the modified zeolite and 2 mM H<sub>2</sub>O<sub>2</sub> could completely remove amoxicillin (AMX), tetracycline (TC), and tiamulin (TIA) in the swine farm effluent within 30 min. However, the antibiotic removal in the swine farm effluent was slower than in the ultrapure water. The heterogeneous Fenton-like reaction removed approximately 45–60% of dissolved organic carbon (DOC) and reduced the dissolved organic matter (DOM) sizes in the swine farm effluent. The large molecular size humic-like DOM co-existing in the swine farm effluent could probably decelerate the antibiotic removal via competitive adsorption and oxidation. To inactivate high-tolerant AMX-resistant <em>E. coli</em>, the heterogeneous Fenton-like reaction required 3-fold less exposure time than the H<sub>2</sub>O<sub>2</sub> oxidation. No regrowth of the high-tolerant AMX-resistant <em>E. coli</em> was observed when the exposure time of the heterogeneous Fenton-like reaction was longer than 6 h. The heterogeneous Fenton-like reaction required the exposure time of 24 h to reduce the <em>bla</em>TEM genes, the AMX-resistant genes, of the high-tolerant AMX-resistant <em>E. coli</em> to the level of lower than the limit of detection. The results suggest that different reaction times are required for the removal of antibiotics (within 30 min), ARB (over 6 h), and ARGs (within 24 h). Furthermore, the heterogeneous Fenton-like reaction with the modified zeolite is a promising technology for sequential and efficient removal of antibiotics, ARB, and ARGs residues in swine farm effluent before being discharged into the environment.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125486"},"PeriodicalIF":8.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Microbial communities and fatty acid markers across acidification and eutrophication extremes in a river influenced by mining activities 受采矿活动影响的河流酸化和富营养化极值的微生物群落和脂肪酸标记
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-04-27 DOI: 10.1016/j.scitotenv.2025.179473
Germán A. Kopprio , Michael Hupfer , Martin Graeve , Susan Mbedi , Sarah Sparmann , Tobias Goldhammer
{"title":"Microbial communities and fatty acid markers across acidification and eutrophication extremes in a river influenced by mining activities","authors":"Germán A. Kopprio ,&nbsp;Michael Hupfer ,&nbsp;Martin Graeve ,&nbsp;Susan Mbedi ,&nbsp;Sarah Sparmann ,&nbsp;Tobias Goldhammer","doi":"10.1016/j.scitotenv.2025.179473","DOIUrl":"10.1016/j.scitotenv.2025.179473","url":null,"abstract":"<div><div>Microbial communities in combination with fatty acid and isotopic markers were studied seasonally to assess the effects of acid mine drainage (AMD) and nutrient loads in the Spree river. Negative values of δ<sup>15</sup>N, the bacterial and detrital markers 18: 1(n-7) and 18:1(n-9), pH values ∼3 and bacteria of the genera <em>Ferrovum</em>, <em>Thiomonas</em>, <em>Acidocella</em>, <em>Acidiphilum</em>, <em>Syderoxydans</em> and <em>Galionella</em> were characteristic of the AMD extreme. Potential iron-oxidizers may produce ferric ions and their precipitates may influence biogeochemical processes, while potential sulfur-oxidizers may contribute to elevated sulphate concentrations and challenge drinking water production in the Spree catchment. In this river, eutrophication was linked with polyunsaturated fatty acids (PUFA) enrichment and not with PUFA depletion as occurs in other freshwater systems. Elevated concentrations and proportions of PUFA as well as higher relative sequence abundance of cyanobacteria were characteristic of the highly eutrophic station, particularly during the phytoplankton bloom. The 18:5(n-3) from flagellates or dinoflagellates may indicate lipid anabolism and trophic upgrading processes. The dominance of the classes Bacteroidia, Gammaproteobacteria and Actinobacteria suggested eutrophic and changing hydrological conditions in the river. The microbial communities were better markers of seasonality than the biogeochemical markers and their combination offers an excellent resolution for the study of the ecology and biogeochemistry of water courses. The expected decreased runoff under climate-driven scenarios may worsen the AMD pollution and eutrophication problems and signify a considerable challenge for water management.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179473"},"PeriodicalIF":8.2,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Environmental and clinical impacts of antibiotics’ sub-minimum inhibitory concentrations on the development of resistance in acinetobacter baumannii 抗生素亚最低抑制浓度对鲍曼不动杆菌耐药发展的环境和临床影响
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-04-27 DOI: 10.1016/j.scitotenv.2025.179521
Bipin Yadav , Dilip D. Karad , Kiran R. Kharat , Nilesh Makwana , Anjali Jaiswal , Richa Chawla , Meenakshi Mani , Hathorkhi H. Boro , Prashant R. Joshi , Dhanraj P. Kamble , Corinne Mercier , Arun S. Kharat
{"title":"Environmental and clinical impacts of antibiotics’ sub-minimum inhibitory concentrations on the development of resistance in acinetobacter baumannii","authors":"Bipin Yadav ,&nbsp;Dilip D. Karad ,&nbsp;Kiran R. Kharat ,&nbsp;Nilesh Makwana ,&nbsp;Anjali Jaiswal ,&nbsp;Richa Chawla ,&nbsp;Meenakshi Mani ,&nbsp;Hathorkhi H. Boro ,&nbsp;Prashant R. Joshi ,&nbsp;Dhanraj P. Kamble ,&nbsp;Corinne Mercier ,&nbsp;Arun S. Kharat","doi":"10.1016/j.scitotenv.2025.179521","DOIUrl":"10.1016/j.scitotenv.2025.179521","url":null,"abstract":"<div><div><em>Acinetobacter baumannii</em> has emerged as a critical nosocomial and environmental pathogen associated with high mortality rates and alarming levels of antibiotic resistance. The World Health Organization has classified <em>A. baumannii</em> as a top-priority pathogen due to its ability to rapidly acquire and disseminate resistance mechanisms. Prevalent in environmental reservoirs such as hospital effluents, agricultural runoff and pharmaceutical effluents, antibiotics’ sub-minimum inhibitory concentrations (sub-MICs) drive resistance evolution in <em>A. baumannii</em>, posing challenges to treatment and public health strategies. This review examines the role of antibiotics’ sub-MICs in driving resistance in <em>A. baumannii</em> across environmental and clinical contexts. Antibiotics’ sub-MICs enhance bacterial resistance by inducing genetic and phenotypic adaptations. These include upregulated efflux pump activities, biofilm formation, horizontal gene transfers, and altered gene expression, enabling <em>A. baumannii</em> to persist in adverse conditions. Environmental reservoirs further exacerbate resistance, with antibiotics’ sub-MICs of tigecycline and colistin promoting adaptive changes in bacterial physiology and virulence. Understanding these pathways in both environmental and clinical settings is essential to develop integrated strategies that mitigate resistance and improve therapeutic options against <em>A. baumannii</em>. This review emphasizes the need to address environmental reservoirs alongside clinical interventions to keep control on the resistance in a one health’s approach.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179521"},"PeriodicalIF":8.2,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Applications, challenges and prospects on efficient and reliable bacterial-algal symbiosis system for wastewater treatment: A systematic review 高效可靠的菌藻共生系统在污水处理中的应用、挑战与展望
IF 11.1 1区 环境科学与生态学
Journal of Cleaner Production Pub Date : 2025-04-27 DOI: 10.1016/j.jclepro.2025.145605
Feifan Wu, Fanying Kong, Bing-Feng Liu, Xueting Song, Nan-Qi Ren, Hong-Yu Ren
{"title":"Applications, challenges and prospects on efficient and reliable bacterial-algal symbiosis system for wastewater treatment: A systematic review","authors":"Feifan Wu, Fanying Kong, Bing-Feng Liu, Xueting Song, Nan-Qi Ren, Hong-Yu Ren","doi":"10.1016/j.jclepro.2025.145605","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145605","url":null,"abstract":"Human activities have increased pollutant emissions and damaged ecosystems. The use of microalgae-bacteria symbiosis systems in dealing with the adverse effects of pollutants has gradually attracted people's attention. Compared with single bacteria or algae, the synergistic effect between bacteria and algae could enhance the removal ability of pollutants and the adapt to the environment. However, high environmental requirements and challenges such as maintaining stable algal symbiotic system activity under fluctuating wastewater composition have potentially limited their widespread application. Therefore, this review focused mainly on the bacterial-algal system and summarized its role in urban, industrial and aquaculture wastewater, as well as its outstanding advantages in biomass energy production. The main influencing factors were explored, and the advantages and disadvantages of different types of reactors were compared. Moreover, this paper highlighted the system's superior sustainability, efficient removal of emerging pollutants and heavy metals, and the dual benefits of carbon emission reduction and resource recovery, thereby solving these problems. Comprehensive analysis showed that the use of bacteria and algae systems to treat wastewater was significantly better than the traditional activated sludge method. The bacterial and algal system exhibited strong adaptability to different water qualities and could produce mainstream biomass energy such as biohydrogen, biodiesel and bioethanol. In addition, environmental factors played important roles in the efficient operation of bacterial and algal systems. This review was dedicated to accelerating the mature application of bacterial-algal systems in industry.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"34 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Disposal of municipal solid waste incineration fly ash through synergistic in-plant dechlorination and sintering 城市生活垃圾焚烧飞灰厂内协同脱氯烧结处理
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2025-04-27 DOI: 10.1016/j.jenvman.2025.125514
Bingxin Fang , Fuheng Xia , Mengqi Zhao , Yu Zheng , Jingjie Li , Wei Yu , Renhui Ruan , Yili Zhang , Jidong Liang , Xuebin Wang
{"title":"Disposal of municipal solid waste incineration fly ash through synergistic in-plant dechlorination and sintering","authors":"Bingxin Fang ,&nbsp;Fuheng Xia ,&nbsp;Mengqi Zhao ,&nbsp;Yu Zheng ,&nbsp;Jingjie Li ,&nbsp;Wei Yu ,&nbsp;Renhui Ruan ,&nbsp;Yili Zhang ,&nbsp;Jidong Liang ,&nbsp;Xuebin Wang","doi":"10.1016/j.jenvman.2025.125514","DOIUrl":"10.1016/j.jenvman.2025.125514","url":null,"abstract":"<div><div>Incineration technology has emerged as the predominant approach for the safe disposal of municipal solid waste in China, generating a significant amount of fly ash as a byproduct. However, the primary landfill method currently employed in China, chelation stabilization coupling, falls short of reliability in terms of environmental standards. Consequently, the safe and effective disposal of fly ash containing high concentrations of chlorine salts, heavy metals, and dioxins is of critical importance. This study proposes a synergistic approach for the dechlorination and sintering of fly ash (FA) generated in waste incineration plants. This method entails the washing of FA with leachate and concentrate, followed by pelletizing and in-furnace sintering. The results indicated that treatment with leachate reduced the residual chlorine concentration in FA to 7 % at a liquid-to-solid ratio of 10 mL g<sup>−1</sup>, while subsequent treatment with concentrate further lowered it to 4 %. FA also adsorbed impurities from the leachate and concentrate without substantially altering critical water quality parameters, enabling the treated liquids to be reintegrated into the leachate treatment system. Aspen Plus simulations demonstrated that in-furnace sintering had a negligible impact on furnace temperature, even when fly ash constituted 0–3 % of the total waste processed. Additionally, the plant's leachate and concentrate output lives up to FA washing requirements. Overall, our study provides fundamental information and establishes a novel model for a low-cost and eco-friendly “waste to treat waste” approach to dispose FA via leachate/concentrate washing in concert with in-furnace sintering.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125514"},"PeriodicalIF":8.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
Energy savings and emission reduction benefits of China's aluminum use paths in transport sector 中国交通领域铝使用路径的节能减排效益
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-04-27 DOI: 10.1016/j.scitotenv.2025.179524
Xinpeng Zheng, Qiang Yue, Heming Wang
{"title":"Energy savings and emission reduction benefits of China's aluminum use paths in transport sector","authors":"Xinpeng Zheng,&nbsp;Qiang Yue,&nbsp;Heming Wang","doi":"10.1016/j.scitotenv.2025.179524","DOIUrl":"10.1016/j.scitotenv.2025.179524","url":null,"abstract":"<div><div>Amid global climate change concerns, China, as the world's largest carbon emitter, confronts significant challenges in energy conservation and emission reduction aligned with its \"dual carbon\" objectives of achieving peak carbon emissions and carbon neutrality. Focusing on the transportation sector, this study employs the life cycle assessment (LCA) method and GREET software to analyze energy consumption and emissions across fuel vehicles (ICEVs), battery electric vehicles (BEVs), and plug-in hybrid vehicles (PHEVs) under varying lightweighting scenarios. The results show that the energy savings and emission reduction effect are best when the lightweighting ratio is 40 %, with a significant decrease in carbon emission and energy consumption, and the reduction in the vehicle's carbon emissions is approximately 5.93 % to 9.47 %, and the savings of the comprehensive energy consumption are 6.6 % to 7.75 %. The lightweighting scenario of 25 % shows the same trend of decreasing carbon emissions and energy consumption, but the effect is lower than the 40 % lightweighting scenario. However, in the lightweighting ratio scenarios of 55 % and 70 %, the advantage of the vehicle's use phase cannot offset the penalty of the aluminum production phase, and as the lightweighting ratio increases, energy consumption and carbon emissions also increase. A characterization of the environmental impacts over the entire life cycle of vehicles reveals that the global warming potential (GWP) is the highest. As the share of thermal power generation in the electricity mix decreases, it leads to a reduction in carbon emissions from aluminum production, and reduces the carbon penalty associated with a greater proportion of lightweight vehicles. This study provides a reference for China's aluminum application strategy in the transport sector.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179524"},"PeriodicalIF":8.2,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
A comparative analysis of dune toe extraction methodologies and implications for assessment of foredune dynamics 沙丘脚趾提取方法的比较分析及其对前丘动力学评价的意义
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-04-27 DOI: 10.1016/j.scitotenv.2025.179277
Alex Smith , Jacob Lehner , Charlotte Wills , Grace Johnson , Chris Houser
{"title":"A comparative analysis of dune toe extraction methodologies and implications for assessment of foredune dynamics","authors":"Alex Smith ,&nbsp;Jacob Lehner ,&nbsp;Charlotte Wills ,&nbsp;Grace Johnson ,&nbsp;Chris Houser","doi":"10.1016/j.scitotenv.2025.179277","DOIUrl":"10.1016/j.scitotenv.2025.179277","url":null,"abstract":"<div><div>An acceleration in Sea Level Rise (SLR) and change in storm activity is likely to increase erosion and flood hazards over the coming decades, representing a significant economic burden and threat to coastal environments globally. Foredune systems may mitigate hazards by providing a natural flood protection to back barrier resources, but only if they can maintain their volume and elevation in pace with SLR and changing storm climates. The beach–dune interface, or dune toe (dt), is an important process boundary that has been used to classify and assess the resiliency of coastal landscapes, however, concerns with inconsistent methodologies have been raised in several recent works. This study provides the first comparative analysis of dt extraction methodologies, discusses the potential impacts on coastal research, and presents the Minimum Averaged Relative Relief (MARR) machine learning model aimed at improving the consistency of dt classifications. Results indicate that interannual horizontal (±29 m) and vertical positions (±1.5 m) of dt predictions are significantly different and the consistency in classifications range widely between approaches and study sites. Overall, MARR was the most consistent displaying its potential to provide an improved methodology for comparisons between sites. Over a period of decades, a disparity in the rates of change in the horizontal (±1 m/y) and vertical (±14 mm/y) dt position were also significantly different among methodologies, which can lead to a divergence in vulnerability of predicted dt elevations (−1 to +1.5 m) relative to a 1–100-year extreme sea level event by 2100. These findings suggest that studies focused on the dt may not be directly comparable, and there is a further need to improve the repeatability and transferability of all coastal landscape classifications and metrics to better inform coastal management and address uncertainties of foredune response to changing sea levels and storm climates.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179277"},"PeriodicalIF":8.2,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Investigating the effects of crony capitalism on energy intensity through the PQARDL Approach 通过PQARDL方法调查裙带资本主义对能源强度的影响
IF 11.1 1区 环境科学与生态学
Journal of Cleaner Production Pub Date : 2025-04-27 DOI: 10.1016/j.jclepro.2025.145598
Rouhollah Shahnazi, Neda Jamshidi, Majid Shafiei
{"title":"Investigating the effects of crony capitalism on energy intensity through the PQARDL Approach","authors":"Rouhollah Shahnazi, Neda Jamshidi, Majid Shafiei","doi":"10.1016/j.jclepro.2025.145598","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145598","url":null,"abstract":"Improving energy efficiency and reducing energy intensity are key priorities for sustainable economic development, as excessive energy consumption contributes to environmental degradation and resource depletion. However, institutional and economic distortions, particularly those stemming from crony capitalism, may undermine energy efficiency efforts by fostering inefficient energy use and weakening regulatory frameworks. Despite its potential significance, the relationship between crony capitalism and energy intensity has received limited attention in the literature. Addressing this gap, this study investigates the influence of crony capitalism on energy intensity across 73 countries from 2000 to 2021, employing the Panel Quantile Autoregressive Distributed Lag (PQARDL) approach. To accomplish this objective, a composite index has been constructed by combining indicators closely associated with crony capitalism. This composite proxy is developed through the integration of the International Country Risk Guide (ICRG) indicators, worldwide governance indicators, and measures of economic freedom. This index, formulated using principal component analysis (PCA), exhibits an inverse association with the extent of crony capitalism. The findings reveal that crony capitalism exacerbates energy intensity, with its impact being more pronounced at higher quantiles. Moreover, in the short run, a comparable pattern is observed. Additionally, the short-run coefficients systematically exceed their long-run counterparts.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"77 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Below-ground carbon gradients surrounding Saskatchewan's native agricultural copses 围绕萨斯喀彻温省原生农业森林的地下碳梯度
IF 8.2 1区 环境科学与生态学
Science of the Total Environment Pub Date : 2025-04-27 DOI: 10.1016/j.scitotenv.2025.179525
Andrea V. Cline, Colin P. Laroque
{"title":"Below-ground carbon gradients surrounding Saskatchewan's native agricultural copses","authors":"Andrea V. Cline,&nbsp;Colin P. Laroque","doi":"10.1016/j.scitotenv.2025.179525","DOIUrl":"10.1016/j.scitotenv.2025.179525","url":null,"abstract":"<div><div>As carbon markets develop, understanding the carbon storage capabilities of agricultural land is imperative to maximizing carbon storage. Ecosystems store two-thirds of their carbon below ground. Shrubland and shelterbelt carbon storage have been well documented in agricultural settings, yet little is known about the carbon stored under the native woody vegetation scattered across the Prairies. This study aims to be the first to quantify the below-ground carbon under and around these native trembling aspen (<em>Populus tremuloides</em>) copses in the Canadian Prairies. For this study, the leaf, fibric, humic layer (LFH) and soil samples up to 60 cm were collected from 142 sampling locations across the Black soil zone of Saskatchewan. Samples were collected under six native woody copses and 24 transects across agricultural lands. Soil samples were divided by soil horizons. Transect distances were based on average aspen height at the site and extended into the surrounding agricultural fields. Total, organic, and inorganic carbon values were quantified using temperature ramping. A carbon gradient from the copse into the field was evident. Moreover, the copse stored 111 % more total carbon than the agricultural field, predominantly as organic carbon. Analysis of the below-ground horizon landscape suggests that the LFH and A-horizon were the most important horizons in carbon storage differences. Overall, this study suggests that a native copse can store 82-90 % more organic carbon than the planted shelterbelts in other studies, highlighting the importance of including these areas in carbon modelling across the Canadian Prairies.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"979 ","pages":"Article 179525"},"PeriodicalIF":8.2,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
引用次数: 0
Governing industrial and urban symbiosis: Internal and external strategies for municipal development 管理工业和城市共生:城市发展的内部和外部战略
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2025-04-27 DOI: 10.1016/j.jenvman.2025.125469
Karolina Södergren, Jenny Palm
{"title":"Governing industrial and urban symbiosis: Internal and external strategies for municipal development","authors":"Karolina Södergren,&nbsp;Jenny Palm","doi":"10.1016/j.jenvman.2025.125469","DOIUrl":"10.1016/j.jenvman.2025.125469","url":null,"abstract":"<div><div>Industrial and urban symbiosis (IUS) is an emerging sustainability strategy in which organizations collaborate to optimize resource flows and minimize waste within urban environments. Rooted in circular economy principles, IUS has gained global attention as cities seek innovative solutions to enhance resource efficiency and resilience. However, local authorities play a critical yet underexplored role in governing IUS. While previous studies recognize their importance in initiating and expanding such initiatives, limited research has systematically examined how municipalities balance internal governance with external engagement strategies to manage IUS effectively. This study addresses this gap by analyzing the internal and external governing strategies employed by Swedish municipalities with emerging or established IUS initiatives. A survey of 22 municipalities revealed that while IUS is widely prioritized, the level of municipal engagement varies. Findings suggest that broader administrative involvement can strengthen capacity for circular solutions. Internally, self-governing strategies, particularly political anchoring, were key to successful implementation. Externally, municipalities adopted enabling, provision, and partnership strategies, emphasizing coordination and facilitation over legal enforcement. The results provide valuable insights for policymakers and urban planners in and beyond Sweden, offering governance strategies applicable to cities and regions seeking to integrate IUS into their sustainability agendas.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125469"},"PeriodicalIF":8.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
引用次数: 0
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