Environmental science. Advances最新文献_第7页

Quantitative sources of nitrate in typical plain river network areas by a combined PMF and MixSIAR approach 结合PMF和MixSIAR方法定量分析典型平原河网地区硝酸盐的来源

IF 4.4

Environmental science. Advances Pub Date : 2026-01-26 DOI: 10.1039/D5VA00273G

Hui Wu and Pengcheng Yao

{"title":"Quantitative sources of nitrate in typical plain river network areas by a combined PMF and MixSIAR approach","authors":"Hui Wu and Pengcheng Yao","doi":"10.1039/D5VA00273G","DOIUrl":"https://doi.org/10.1039/D5VA00273G","url":null,"abstract":"Nitrate nitrogen (NO3−) pollution has become a severe issue in the plain river network areas with the intensification of human activities, leading to environmental problems such as eutrophication. Therefore, it is imperative to trace the sources of NO3− in rivers. This study performed stable isotope sampling on samples collected from two main rivers of the Yubei Plain river network based on different land-use types, with sampling focused on aquaculture and industrial areas. A combination of positive matrix factorization models (PMF), isotope tracer and mixed stable isotope analysis in R (MixSIAR) was used to quantify the sources of NO3− in the typical plain river network in China. NO3− concentrations in the river network of the Yubei Plain ranged from 0.62 to 1.54 mg L−1 and showed an increasing trend downstream. NO3− accounted for over 70% of the total nitrogen (TN) concentration. PMF and MixSIAR results showed that industrial, agricultural, domestic and aquaculture wastewater were the main drivers of NO3− in the river network. The results from both the PMF and MixSIAR models were similar, confirming the validity of the analysis. The results showed that industrial wastewater contributed more than 40% of NO3−, which was the main driver affecting NO3− pollution in the river network. In addition, nitrification was significant in the plain river network, while denitrification was negligible. The results of this study provide valuable insights into the pollution control of nitrate nitrogen in plain river network areas.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 3","pages":" 829-837"},"PeriodicalIF":4.4,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00273g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147375112","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}

引用次数: 0

Climate-driven shifts in tree phenology: global patterns, trends, and ecological implications 气候驱动的树木物候变化：全球模式、趋势和生态影响

IF 4.4

Environmental science. Advances Pub Date : 2026-01-23 DOI: 10.1039/D5VA00292C

Karuna Gusain, Kajal Gautam, Mohit Bhatt, Hukum Singh, Mithilesh Singh and Santan Barthwal

{"title":"Climate-driven shifts in tree phenology: global patterns, trends, and ecological implications","authors":"Karuna Gusain, Kajal Gautam, Mohit Bhatt, Hukum Singh, Mithilesh Singh and Santan Barthwal","doi":"10.1039/D5VA00292C","DOIUrl":"https://doi.org/10.1039/D5VA00292C","url":null,"abstract":"Shifts in the seasonal timing of tree phenological events, including budburst, leaf emergence, flowering, and fruiting, are among the most sensitive biological indicators of climate change. We conducted a systematic review of 145 empirical studies published between 2004 and 2024, encompassing 116 tree species across tropical, subtropical, temperate, and boreal biomes, to synthesize global trends, dominant climatic drivers, and ecological consequences of phenological changes. Temperature emerged as the primary driver in temperate and boreal systems, where spring leaf-out and flowering advanced by 2.5–5.1 days/°C of warming. In contrast, phenology in tropical and subtropical ecosystems was more strongly regulated by precipitation and drought variability, with increased rainfall advancing flowering and fruiting by 3–5 days and drought stress delaying events by 7–10 days. Additional influences included photoperiod, solar radiation, relative humidity, elevated CO2, soil moisture, and urban heat island effects, while extreme events such as heatwaves and late frosts frequently disrupted expected phenological patterns. These shifts have far-reaching implications for growing-season length, carbon uptake, evapotranspiration, nutrient cycling, and trophic synchrony, with cascading effects on biodiversity and ecosystem resilience. Despite this importance, evidence remains geographically biased toward Europe and North America, and mechanistic understanding is constrained by reliance on observational approaches and limited representation of species-specific responses in dynamic global vegetation models. Integrating long-term monitoring, remote sensing, trait-based data, and machine learning into modelling frameworks is essential to improve the projections of vegetation–climate feedbacks under future climate scenarios.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 3","pages":" 726-752"},"PeriodicalIF":4.4,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00292c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147375096","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}

引用次数: 0

Carbon accounting of pig manure management with a focus on China – discrepancies and recommendations 以中国为重点的猪粪管理碳核算——差异与建议

IF 4.4

Environmental science. Advances Pub Date : 2026-01-21 DOI: 10.1039/D5VA00248F

Lei Zhang, Xiaoshan Hu, Xietian Zheng, Chenyuan Zhang, Qiang Liu, Zhonghao Chen, Hongwei Liu, Chuan Wang and Lei Wang

{"title":"Carbon accounting of pig manure management with a focus on China – discrepancies and recommendations","authors":"Lei Zhang, Xiaoshan Hu, Xietian Zheng, Chenyuan Zhang, Qiang Liu, Zhonghao Chen, Hongwei Liu, Chuan Wang and Lei Wang","doi":"10.1039/D5VA00248F","DOIUrl":"https://doi.org/10.1039/D5VA00248F","url":null,"abstract":"Livestock manure management is a significant source of greenhouse gas (GHG) emissions in China, a leading country in pig farming. A scientific assessment of the carbon footprint of pig farming systems could provide a basis for further reducing GHG emissions in the livestock sector. This study reviewed the different GHG accounting methods for pig manure management, including Tier 2, Tier 2 Mass Flow, and Tier 3, and evaluated the impact of their implementation through a case study of an intensive pig farm. The results revealed that the emissions estimated by the IPCC Tier 2 method were 48% higher than those estimated by the Tier 2 Mass Flow method and 77% higher than those estimated by the Tier 3 process simulation-based method. Tier 2 Mass Flow and Tier 3 process modelling approaches are suggested to be more suitable for farm-level GHG emissions accounting, as the former tracks mass flow along the process and the latter incorporates regional climate conditions and microbiological activities. To enhance the accuracy and comprehensiveness of carbon accounting for China's pig farming system, it is recommended to monitor key GHG emission estimation parameters in Tier 2 Mass Flow and Tier 3 models across diverse regional farms. Furthermore, implementing these methods, which integrate farm-level accounting with regional models, could contribute to a comprehensive, bottom-up inventory of GHG emissions for manure management.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 3","pages":" 838-852"},"PeriodicalIF":4.4,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00248f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147375113","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}

引用次数: 0

Toluene adsorption and capacity regeneration using zeolite-based monolith and activated carbon fiber felt 沸石基整体石和活性炭纤维毡对甲苯的吸附及容量再生

IF 4.4

Environmental science. Advances Pub Date : 2026-01-19 DOI: 10.1039/D5VA00247H

Melanie Moses-DeBusk, Mengjia Tang, Kai Li, Keju An, William P. Partridge and Kashif Nawaz

{"title":"Toluene adsorption and capacity regeneration using zeolite-based monolith and activated carbon fiber felt","authors":"Melanie Moses-DeBusk, Mengjia Tang, Kai Li, Keju An, William P. Partridge and Kashif Nawaz","doi":"10.1039/D5VA00247H","DOIUrl":"https://doi.org/10.1039/D5VA00247H","url":null,"abstract":"Common adsorbents studied to remove volatile organic compounds (VOCs) from indoor air can release previously adsorbed VOCs back into the indoor space when the adsorbent is saturated or if the VOC concentration fluctuates. A durable adsorbent with a continuous regeneration strategy could prevent this recontamination of the indoor air and reduce adsorbent disposal waste. A deeper understanding of the adsorption and desorption behavior of VOC adsorbents is needed to create an efficient regeneration strategy. This study investigated the adsorption and thermal desorption behavior of toluene on two different adsorbents, (1) a zeolite-based adsorbent and (2) an activated carbon fiber (ACF) felt. Consistent adsorption behavior across a series of toluene concentrations was used to experimentally determine effective adsorption capacity. When the cumulative adsorption between thermal regeneration steps was maintained below the maximum effective capacity with 0% breakthrough, the zeolite-based adsorbent was found to effectively minimize passive desorption. The impact of regeneration feed conditions, such as inert, oxidizing, humidified air, on thermal desorption was examined. These conditions influenced desorption of the zeolite-based adsorbent but had minimal impact on the ACF felt adsorbent, which would lead to different regeneration schedules and methods for applications in buildings' heating, ventilation, and air conditioning (HVAC) systems.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 2","pages":" 450-462"},"PeriodicalIF":4.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00247h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147835","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}

引用次数: 0

Low input remediation techniques for contaminated site management 污染场地管理的低投入修复技术

IF 4.4

Environmental science. Advances Pub Date : 2026-01-19 DOI: 10.1039/D5VA00242G

Paul Bardos, Jinyu Lai, Lisa Pizzol, Antonio Sellitri, Nazaré Couto, Virginie Derycke, Dominique Guyonnet, Timothy M. Vogel, Jurate Kumpiene and Andrew Cundy

{"title":"Low input remediation techniques for contaminated site management","authors":"Paul Bardos, Jinyu Lai, Lisa Pizzol, Antonio Sellitri, Nazaré Couto, Virginie Derycke, Dominique Guyonnet, Timothy M. Vogel, Jurate Kumpiene and Andrew Cundy","doi":"10.1039/D5VA00242G","DOIUrl":"https://doi.org/10.1039/D5VA00242G","url":null,"abstract":"Risk-based land management emphasises remediation to manage risks from land contamination, aiming to reduce human and environmental risks while enabling site reuse and redevelopment. Since the mid-2000s, sustainable remediation has gained prominence, driven by global sustainability agendas such as the United Nations 2030 Agenda and the European Green Deal. These frameworks encourage integrated approaches that maximise remediation benefits and minimise negative impacts. Low-input remediation techniques (LIRT) represent a family of approaches characterised by lower energy and resource demands, often leveraging natural processes, renewable resources, or energy sources. Examples include methods using biochar, photosynthesis, or renewable energy systems. LIRT overlap with concepts like gentle remediation options (GRO) and nature-based solutions (NBS), which employ natural processes to address contamination while delivering environmental and societal benefits. While LIRT are typically effective for pathway management rather than source control, they offer sustainable outcomes such as stabilisation, containment, and destruction of biodegradable contaminants. They also contribute to broader sustainability goals, such as reducing carbon footprints and preserving soil functionality, and can support site reuse for biofeedstocks, habitats, or amenity spaces. LIRT are particularly valuable for stalled or economically unviable sites, offering cost-effective and flexible solutions. However, achieving sustainable outcomes depends on site-specific factors, and LIRT often work best when integrated into a broader remedial strategy combining intensive and low-input methods. This paper explores LIRT's potential applications, technical characteristics, and challenges, alongside their benefits for sustainable land management and the restoration of underutilised sites.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 2","pages":" 567-590"},"PeriodicalIF":4.4,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00242g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147882","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}

引用次数: 0

Magnetic graphene nanocomposites: a new frontier in radioactive waste remediation 磁性石墨烯纳米复合材料：放射性废物修复的新前沿

IF 4.4

Environmental science. Advances Pub Date : 2026-01-12 DOI: 10.1039/D5VA00319A

M. Mahiuddin, Abhijit Barua, A. B. M. Nazmul Islam, M. Saiful Islam Monir, Abdur Rahman, Samir Mallick, Joshua T. Moore, Tasneem A. Siddiquee, Zinnat Rahman and Ismail Rahman

{"title":"Magnetic graphene nanocomposites: a new frontier in radioactive waste remediation","authors":"M. Mahiuddin, Abhijit Barua, A. B. M. Nazmul Islam, M. Saiful Islam Monir, Abdur Rahman, Samir Mallick, Joshua T. Moore, Tasneem A. Siddiquee, Zinnat Rahman and Ismail Rahman","doi":"10.1039/D5VA00319A","DOIUrl":"https://doi.org/10.1039/D5VA00319A","url":null,"abstract":"The management of radioactive waste presents formidable environmental and health challenges, necessitating the development of effective remediation technologies. Magnetic nanocomposites (NCs) derived from iron oxide (Fe3O4) and graphene derivatives have emerged as highly promising materials for the sorptive removal of radionuclides from contaminated aqueous streams. This comprehensive review critically examines the synthesis, characterization, and application of these NCs. The key physicochemical properties—including structural, magnetic, and surface characteristics—that underpin their high sorption capacities have been explored. The discussion covers various synthesis methodologies and the analytical techniques used to validate the properties of the materials. A central focus is placed on the sorption mechanisms, performance efficiency, and the operational factors influencing the sequestration of radioactive ions. Despite their significant potential, several challenges related to scalability, long-term stability, selective sorption in complex matrices, and potential environmental impacts have been identified and discussed. Finally, future research directions to advance the practical application of Fe3O4@graphene NCs in radioactive waste management have been discussed. This review provides a foundational understanding of the capabilities and limitations of these materials, aiming to guide future research toward their practical implementation in mitigating the hazards of radioactive contamination.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 2","pages":" 369-392"},"PeriodicalIF":4.4,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00319a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147827","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}

引用次数: 0

Assessing per- and polyfluoroalkyl substance (PFAS) exposure from cell phone contact 评估手机接触造成的全氟烷基和多氟烷基物质（PFAS）暴露

IF 4.4

Environmental science. Advances Pub Date : 2026-01-07 DOI: 10.1039/D5VA00197H

Sierra T. Peskett, Salma A. Abu Odeh and Amy A. Rand

{"title":"Assessing per- and polyfluoroalkyl substance (PFAS) exposure from cell phone contact","authors":"Sierra T. Peskett, Salma A. Abu Odeh and Amy A. Rand","doi":"10.1039/D5VA00197H","DOIUrl":"https://doi.org/10.1039/D5VA00197H","url":null,"abstract":"Per- and polyfluoroalkyl substances (PFAS) are found throughout the environment and can adversely affect human health. In this study, we monitored PFAS on cell phones to understand whether cell phones contribute to human PFAS exposure through dermal adsorption and hand-to-mouth exposure. Cell phone (n = 118) and hand wipes (n = 50) were collected in Ontario, Canada and each sample was paired with a participant lifestyle survey. Wipes were analyzed for 25 PFAS using liquid chromatography tandem mass spectrometry (LC-MS/MS). The analytes included perfluorinated carboxylic acids (PFCAs), perfluorinated sulfonic acids (PFSAs) and polyfluorinated phosphate esters (PAPs). PFAS were detected on 99.2% of cell phones and 100% of hand wipes. The 6 : 2 disubstituted polyfluorinated phosphate ester (6 : 2 diPAP) was detected most frequently on both cell phone and hand wipes. The range of ∑PFAS was <MDL to 65.5 ng on cell phones and 0.1 to 259 ng on hands. The median estimated dermal adsorption was 15.3 and 3.1 ng per day from hands and cell phones, respectively. The median estimated hand-to-mouth exposure was 0.93 and 0.49 ng per day from hands and cell phones, respectively. While cell phone wipes may offer supplementary information, the findings suggest that hand wipes remain the preferred matrix for accurate exposure assessment. Cell phones were demonstrated to be an additional source of exposure to perfluorohexanoic acid (PFHxA), perfluorooctanoic acid (PFOA), 8 : 2 monoPAP, 6 : 2 diPAP, and 6 : 2/8 : 2 diPAP. PFAS exposure was also correlated with age (14–65+), education, race, and continent of birth, based on lifestyle survey findings. Our results point towards diverse and multi-factor exposure pathways for the examined PFAS.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 2","pages":" 556-566"},"PeriodicalIF":4.4,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00197h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147881","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}

引用次数: 0

Green valorisation of biowastes – electrochemical “one-pot” reductive amination of furfural on a graphite electrode in water 生物废弃物的绿色增值——水中石墨电极上糠醛的电化学“一锅”还原胺化

IF 4.4

Environmental science. Advances Pub Date : 2026-01-06 DOI: 10.1039/D5VA00335K

Joel Donkeng-Dazie, Lucie Koláčná, Martin Lamač and Jiří Ludvík

引用次数: 0

Rate of weathering of Cold Lake Blend diluted bitumen at different water temperatures taking into consideration uncontrolled environmental factors 考虑非受控环境因素的冷湖混合稀沥青在不同水温下的风化速率

IF 4.4

Environmental science. Advances Pub Date : 2026-01-06 DOI: 10.1039/D5VA00400D

Thomas King, Brian Robinson, Jennifer Mason and Michel Boufadel

{"title":"Rate of weathering of Cold Lake Blend diluted bitumen at different water temperatures taking into consideration uncontrolled environmental factors","authors":"Thomas King, Brian Robinson, Jennifer Mason and Michel Boufadel","doi":"10.1039/D5VA00400D","DOIUrl":"https://doi.org/10.1039/D5VA00400D","url":null,"abstract":"The rate of weathering of Cold Lake Blend diluted bitumen in floating microcosms in an experimental flume tank was monitored over time (0, 6, 24, 48, 72, 96, and 168 hours) under controlled temperature conditions (4, 10, 15 and 25 °C). At all temperatures, the most rapid change in the physical properties (density and viscosity) and chemical composition (saturates and aromatics) of the oil occurred within the first 48 hours. Correlation analyses showed that seawater temperature and the uncontrolled factors (wind speed and air temperature) were significantly correlated on the rate of change in the physical properties of the oil. Gas chromatography mass/spectrometry analyses of the composite samples of weathered oil showed similar results for changes in its chemical composition. At 168 hours of weathering, the relative decrease of the saturates (C10 to C17 normalized to 17α, 21β-hopane) increased with the temperature. The percent decrease was 16, 24, 42, and 57 at 4, 10, 15 and 25 °C respectively. A similar trend was observed for the aromatics. From these, the percent decrease of naphthalene and its alkylated homologues was largest at 15 °C and above. These changes in the chemical composition and physical properties of the oil most likely resulted from the loss of the diluent. The data from this study on the weathering of diluted bitumen over a range of seawater temperatures, is the first of its kind, and thus may be used in predictive models to improve recommendations for responding and/or to improve contingency planning to oil spills.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 2","pages":" 534-542"},"PeriodicalIF":4.4,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00400d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147879","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}

引用次数: 0

Long-term nitrogen deposition disrupts carbon cycling and enhances plant-derived carbon sequestration in a temperate forest 在温带森林中，长期氮沉降破坏碳循环并增强植物源碳固存

IF 4.4

Environmental science. Advances Pub Date : 2026-01-05 DOI: 10.1039/D5VA00352K

Biwei Yang, Meiling Man, Yuxuan Weng, Richard D. Bowden, Jun-Jian Wang and Myrna J. Simpson

{"title":"Long-term nitrogen deposition disrupts carbon cycling and enhances plant-derived carbon sequestration in a temperate forest","authors":"Biwei Yang, Meiling Man, Yuxuan Weng, Richard D. Bowden, Jun-Jian Wang and Myrna J. Simpson","doi":"10.1039/D5VA00352K","DOIUrl":"https://doi.org/10.1039/D5VA00352K","url":null,"abstract":"Nitrogen (N) deposition alters carbon (C) dynamics in forests, but its long-term impact on soil C biogeochemistry remains unelucidated at the molecular-level. We collected soils after 27 consecutive years of N additions in a temperate forest and examined soil chemistry using molecular soil organic matter (SOM) compositional analysis to unravel mechanisms and impacts on soil biogeochemistry. N-addition increased soil C storage in the forest floor, where microbial stress increased and decomposition was suppressed, causing accumulation of aboveground plant inputs such as leaf litter and a shift toward less stable SOM. In the mineral soil, C storage did not change significantly, but decomposition of root and woody materials was reduced, and microbes exhibited stress. After nearly three decades, microbial stress persisted with a community shift toward fewer Gram-negative bacteria, which prefer labile C like cellulose. The rise in more labile C forms further supported accumulation of microbially preferred substrates. Overall, chronic N deposition thus impairs microbial decomposition and alters SOM composition, reducing C turnover and leading to accumulation of less persistent C forms that may be vulnerable to loss upon forest disturbance or environmental change. These findings emphasize the importance of integrating microbial and chemical composition in predicting long-term N deposition impacts on forest soil C sequestration and demonstrate the severe impacts on biogeochemical processes in forests.","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":" 4","pages":" 1060-1069"},"PeriodicalIF":4.4,"publicationDate":"2026-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/va/d5va00352k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621000","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}

引用次数: 0