Elsevier最新文献

{"title":"Dynamics of soil organic carbon fractions, microbial communities, and carbon cycle functional genes during vegetation restoration in zinc smelting slag sites.","authors":"Lishan Pan, Youfa Luo, Jingjing Xu, Qiansong Wan","doi":"10.1016/j.jenvman.2025.126206","DOIUrl":"10.1016/j.jenvman.2025.126206","url":null,"abstract":"<p><p>Vegetation restoration has emerged as an effective strategy to enhance soil organic carbon (SOC) pools in degraded mining areas. However, the dynamics of SOC fractions and the underlying microbial mechanisms during vegetation restoration remain poorly understood. This study examined the dynamics of SOC fractions, microbial community structure, and carbon cycle functional genes in the rhizosphere soils of Cryptomeria fortunei (C. fortunei) and Trifolium repens (T. repens), established at zinc smelting slag sites for 4, 6, and 12 years. Results indicated that SOC fractions, including dissolved organic carbon (DOC), microbial biomass carbon (MBC), particle organic carbon (POC), and mineral-associated organic carbon (MAOC), significantly increased with restoration age and were predominantly distributed within micro-aggregates. Bacterial and fungal abundance and diversity were significantly higher in revegetated soils compared to control (CK) soils. Both microbial phospholipid fatty acids (PLFAs) and microbial residue carbon in bulk soils and aggregates significantly increased over time, with bacterial PLFAs exceeding fungal PLFAs, while fungal residue carbon contributed more than bacterial residue carbon to microbial carbon. Total PLFAs were more abundant in 2-0.25 mm aggregates, while total microbial residue carbon was concentrated in <0.25 mm aggregates. In bulk soils, key carbon fixation genes (e.g., korA, gltA, sdhA, mcmA) and degradation genes associated with hemicellulose (e.g., rfbB, xylF, xylH) and starch (e.g., SGA1, malQ) were identified. The abundance of carbon cycling genes initially increased and then decreased in C. fortunei-revegetated soils, whereas a continuous decline was observed in T. repens-revegetated soils. Partial least squares pathway modeling (PLS-PM) revealed that restoration years directly influenced SOC, enzyme activity, and microbial communities, while indirectly affecting carbon cycling genes through changes in microbial communities. Notably, the effects varied between the two plant species. These findings provide valuable insights into SOC dynamics and microbial ecological processes during vegetation restoration in zinc smelting slag sites.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126206"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315676","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}

{"title":"Assessing pollution in sediment and water before, during and after sediment dredging in a Mediterranean harbor.","authors":"Chrystelle Montigny, Cyrine Chouba, Aurélien Domeau, Sophie Delpoux, Mylène Marie, Léa Causse, Rémi Freydier, Olivier Pringault","doi":"10.1016/j.jenvman.2025.126182","DOIUrl":"10.1016/j.jenvman.2025.126182","url":null,"abstract":"<p><p>Marinas are semi-enclosed environments with low hydrodynamic energy, high sedimentation rates, and reduced oxygen levels, making them prone to contaminant accumulation. In the Mediterranean, where tidal amplitude is low, these conditions lead to infrequent dredging and prolonged pollutant buildup. This study assessed the impact of sediment dredging on trace metal elements (TMEs) and organotin compounds in the water column of a Mediterranean marina. A 21-month monitoring campaign was conducted, covering pre-dredging (12 months), dredging (4 months), and post-dredging (5 months) phases. Such long-term, high-frequency monitoring of the water column is rarely performed, particularly in marinas, where environmental assessments typically focus on sediments. The results revealed significant changes during dredging, including increased pH and oxygen levels, and frequent exceedances of turbidity thresholds set by French regulations. TME concentrations in the water column generally decreased during and after dredging, especially for arsenic (As), nickel (Ni), lead (Pb), and lithium (Li), while organotin levels remained stable. Aluminum (Al) concentrations stayed high throughout, and cadmium (Cd) and copper (Cu) showed temporary reductions that were not sustained post-dredging. In sediments, TME levels decreased, but organotin concentrations rose, particularly in technical zones. This study highlights the need to revise current dredging regulations by expanding monitoring beyond turbidity to include resuspended contaminants and hydrodynamic conditions. The use of predictive tools, adaptive management strategies, and collaborative approaches among scientists, port authorities, and regulators is essential to improve environmental risk assessments and promote sustainable dredging practices.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126182"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300902","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}

{"title":"Does air pollution affect employment quality?","authors":"Yunyuan Lin","doi":"10.1016/j.jenvman.2025.126201","DOIUrl":"10.1016/j.jenvman.2025.126201","url":null,"abstract":"<p><p>Employment quality has a significant impact on both individuals and society. In the context of severe air pollution, exploring the impact of air pollution on residents' employment quality is of great academic value and practical significance. This paper uses Ordinary Least Squares (OLS) regression, utilizing data from the 2021 China General Social Survey (CGSS2021), to examine the impact of air pollution on employment quality. The empirical results show that air pollution has a significant negative effect on employment quality, and the results remain robust after controlling for other variables. To address potential endogeneity issues, this study uses the mean perceived air pollution excluding the individual's own response as an instrumental variable and applies the two-stage least squares (2SLS) method for estimation. In addition, the analysis of the mediating mechanism shows that air pollution affects employment quality by impacting health and happiness. The heterogeneity analysis reveals that employment quality varies among different groups based on gender, marital status, income, and education level. The research results suggest that efforts should be made to actively reduce air pollution and promote high-quality, full employment. This provides important references and valuable insights for promoting high-quality economic development and achieving employment growth.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126201"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300904","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}

{"title":"ESG rating divergence and financing constraints: Evidence from China.","authors":"Jiahua Zhao, Minglin Wang, Saisai Hong, Si Tan","doi":"10.1016/j.jenvman.2025.126188","DOIUrl":"10.1016/j.jenvman.2025.126188","url":null,"abstract":"<p><p>In the context of the escalating global environmental, social, and governance (ESG) risks, ESG performance has increasingly become a crucial reference for companies when formulating business strategies. This paper, drawing on the information asymmetry and signaling theories, delves into the impact of divergences in ESG ratings among various institutions on corporate financing constraints. By taking the sample of Chinese A-share listed companies during the period from 2018 to 2022, and using an index of ESG rating divergence, we test the theoretical hypotheses. The empirical results indicate that ESG rating divergence exacerbates financing constraints, which still hold after conducting various robustness tests. From the perspective of analysts, this phenomenon occurs because the divergences in ESG ratings lead to increased prediction biases, thereby intensifying the corporate financing constraints. Nevertheless, compliant ESG disclosure can mitigate the adverse effects of ESG rating divergences on a company's financing constraints. Moreover, within enterprises with higher ESG ratings and greater profitability, the influence of ESG rating divergences on financing constraints is less pronounced. Further analysis shows that the effect of ESG rating divergence mainly stems from domestic rating divergence, domestic and international rating divergence, and environmental rating divergence. Additionally, the impact of the inter-institutional difference, potential for ESG development, and the impact on Alpha have also been analyzed. This study significantly enriches the theoretical framework of ESG rating divergences, provides new empirical evidence on the effects of ESG ratings divergences on corporate financing activities, and offers recommendations for investors to better grasp ESG information, as well as for both enterprises and governments to alleviate financing constraints.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126188"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300906","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}

{"title":"Low-cost halloysite-fly ash composite for the removal of pharmaceuticals, dyes and surfactants from contaminated water.","authors":"Agnieszka Solińska, Grzegorz Rzepa, Mateusz Marzec","doi":"10.1016/j.jenvman.2025.126140","DOIUrl":"10.1016/j.jenvman.2025.126140","url":null,"abstract":"<p><p>Environmental contamination by dyes, pharmaceuticals, and surfactants is a global concern, highlighting the urgent need for effective removal methods. We investigated a low-cost composite based on halloysite (HAL) and fly ash (FA) as a adsorbent for removal of surfactant: sodium dodecylbenzenesulfonate (SDBS); dyes: Remazol brilliant blue r (RBBR), Rhodamine b (RB); pharmaceuticals: sulfamethoxazole (STX), ibuprofen (IB) from single adsorbate solutions and real wastewater. The dualistic approach was employed: advanced instrumental analysis for adsorbent-sorbate interactions study and sorption experiments conditions (effect of initial organic compounds concentration, the solution pH) for sorption efficiency assessment. The characterization of adsorbents included X-ray diffraction, X-ray fluorescence and X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy. The composite with a 20:80 ratio of HAL to FA exhibited the best sorption properties. The sorption capacity for RBBR, RB exceeded 20 mg/g and 4 mg/g, respectively, while for IB, STX and SDBS the sorption capacities were above 0.9, 0.3, and 8.5 mg/g, respectively. In general, slightly acidic conditions (pH 5-7) promoted RBBR, RB and STX adsorption; alkaline conditions (pH > 9) promoted IB adsorption. The X-ray photoelectron spectroscopy revealed a complex physical adsorption process involving dispersion forces, hydrogen and electrostatic bonding. The studies showed that the eco-friendly and inexpensive composite can simultaneously uptake organic compounds from wastewater. Although the competition effect of inorganic/organic molecules affected the sorption efficiency, the removal of SDBS from wastewater reached 100 %. Further research will focus on investigating granulated composites in dynamic column systems to advance purification technologies.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126140"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144339774","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}

{"title":"Multiple competitive superiority made a great successful invasion of Spartina alterniflora in Eastern China: hints for management.","authors":"Shi-Hua Li, Zhen-Ming Ge, Li-Shan Tan, Li-Na Xie, Ya-Lei Li","doi":"10.1016/j.jenvman.2025.126287","DOIUrl":"10.1016/j.jenvman.2025.126287","url":null,"abstract":"<p><p>Numerous case studies indicate that the successful invasion of alien species involve multiple mechanisms. Spartina alterniflora (Poaceae) has rapidly and extensively encroached on China's coastline over the past decades, however, limited studies have explored multiple invasion mechanisms. Using a combination of greenhouse experiments, field survey, and literature investigations, a cross-scale study of S. alterniflora in Eastern China was conducted to link the multiple invasion mechanisms against the dominant native species, Phragmites australis (Poaceae) and Scirpus mariqueter (Cyperaceae) at high and low coastal habitats, respectively. The results revealed that S. alterniflora was competitive superior to native species at the seed/seedling scale, with a higher seed yield and germination rate, and low risk of seed hunting by crabs. At the individual scale, S. alterniflora showed a stronger tolerance to changing environmental factors impacting photosynthesis, growth parameters, and root architecture, compared with the native P. australis. S. alterniflora were also resilient to insect pests. At the community scale, S. alterniflora showed shading effects on the native S. mariqueter. The multiple competitive advantage led to the successful invasion of S. alterniflora in Eastern China, broadening our understanding of why the exotic species can achieve dominance in whole China's coast. We suggest that the multiple competitive superiority of S. alterniflora can be integrated from the perspectives of the organizational level of life systems to efficaciously forecast invasion trajectories and design control strategies.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126287"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144339775","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}

{"title":"The high economic cost of biological invasions in China.","authors":"Yuanyi Li, Jinyu Zhang, Jun Zhang, Jiacong Du, Ruxiang Yang, Meiling Niu, Yiming Li","doi":"10.1016/j.jenvman.2025.126224","DOIUrl":"10.1016/j.jenvman.2025.126224","url":null,"abstract":"<p><p>China faces challenges to increasing biological invasions as its trade volume increases. However, comprehensive assessments of invasion costs in China are rare, which hinders its green growth for sustainable environments. We estimated economic costs of invasive alien species (IAS) in China using a comprehensive database based on new search phrases. China ranks as the second most economically vulnerable countries (following USA) to IAS. Cumulative costs of IAS reached US$ 3124.66 billion (US$ 2017) (or RMB 21,118.95 billion, with an average of RMB 422.38 billion per year) for total data from 1973 to 2022 and US$ 425.08 billion for robust data, 6.36 times and 3.32 times estimates from Global Invasion Cost Database (InvaCost), respectively. Forests and southeastern coastal regions suffered from higher costs. Damage cost was 184 times management cost for robust data and 73 times that for total data. IAS originating from North America posed greater costs to China than those from other continents. China needs to invest more resources in managing biological invasions.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126224"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144339778","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}

{"title":"Tracking the spatial and temporal evolution of salt marsh vegetation based on UAV sampling and seasonal phenology from Landsat data.","authors":"Kebing Chen, Jiaxin Xu, Lu Chang, Qiyong Luo, Jie Song, Yang Zhou, Yujun Yi","doi":"10.1016/j.jenvman.2025.126204","DOIUrl":"10.1016/j.jenvman.2025.126204","url":null,"abstract":"<p><p>Salt marshes, valued for their ecological importance, have been increasingly degraded in recent decades. Preserving salt marshes necessitates a critical approach that involves monitoring vegetation distribution and species composition. This study presents a high-precision salt marsh mapping framework for the Yellow River Delta (YRD), integrating Unmanned Aerial Vehicle (UAV), machine learning and seasonal phenological features from Landsat data. UAV data facilitate sampling efficiency, while seasonal phenology improves species differentiation in classification models. Among the tested algorithms, the Random Forest algorithm achieved the highest overall accuracy (89 %), outperforming support vector machines, gradient-boosted decision trees and deep neural network, particularly in identifying mixed-vegetation zones. Autumn phenological features emerged as critical discriminators for vegetation type classification. From 1991 to 2022, the salt marsh area exhibited an initial decline, followed by stabilization, and subsequent expansion, reaching 259.15 km² in 2022. Notably, the invasive species Spartina alterniflora expanded significantly after 2009, reaching 61.4 km² before its eradication in 2021. This research demonstrates that integrating UAV and seasonal phenological data provides a scalable, high-precision approach for long-term salt marsh monitoring. The framework provides robust tools and actionable insights for conservation, invasive species management, and ecosystem restoration.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126204"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336164","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}

{"title":"Can wetlands designed for flood attenuation efficiently remove nitrogen from agricultural runoff?","authors":"Josefin E Nilsson, Joachim Audet, Per Magnus Ehde, Stefan E B Weisner, Antonia Liess","doi":"10.1016/j.jenvman.2025.126273","DOIUrl":"10.1016/j.jenvman.2025.126273","url":null,"abstract":"<p><p>Eutrophication and flood risk are pressing issues of ecological and societal relevance. A key driver of eutrophication is the use of nitrogen (N) fertiliser in agriculture, resulting in N exports from land to water. Climate change increases the risk of flood events which can increase N exports and further worsen eutrophication. Created wetlands in agricultural areas are recognised as effective nutrient sinks, and the flood attenuating capabilities of wetlands are well established. However, the combination of these two ecosystem services in agricultural landscapes is understudied. This study examines how water flow buffering in created wetlands affects N removal and greenhouse gas (GHG) emissions. The study was performed in experimental wetlands of different designs (depth and size) subjected to intermittent or permanent flooding (gradual emptying between inflow events or a constant water level). Intermittently flooded wetlands removed less N than permanently flooded wetlands, especially during no-flow periods. The largest difference was found among deep wetlands, where the average N removal across the study was 0.19 g m^-2 d^-1 (25 %) in intermittently flooded wetlands and 0.27 g m^-2 d^-1 (38 %) in permanently flooded wetlands. No differences in the aqueous concentrations of N₂O or CH₄ were observed between wetlands with high or low water storage capacity, thus indicating similar emissions. This study highlights a risk of lowered N removal in created wetlands designed for flood attenuation. Further studies are needed on synergies and trade-offs when aiming to combine flood attenuation and N removal in created wetlands.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126273"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336191","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}

{"title":"Enhancing bioremediation in desert Soils: Comparative impacts of water- and sewage effluent-irrigation on oil degradation and microbial dynamics.","authors":"Majida Khanafer, Awatef Almutairi, Husain Al-Awadhi","doi":"10.1016/j.jenvman.2025.126196","DOIUrl":"10.1016/j.jenvman.2025.126196","url":null,"abstract":"<p><p>This study investigates the efficiency of different bioremediation techniques in cleaning a desert soil sample saturated with crude oil. The soil was divided into three cores; two cores were regularly irrigated with either tap water or raw sewage effluent and mixed thoroughly, while the third core remained untreated as a control. Three parallel cores of pristine soil samples were also set for comparative analysis of microbial communities. The cores were exposed to natural environmental conditions for 10 months. The results of the study showed that bioremediation in the oil-saturated soil samples occurred via the activities of the indigenous bacteria, demonstrating self-cleaning. Oil-removal efficiency in the untreated soil samples reached 79.6 % after 10 months incubation. Water- and sewage effluent-irrigation along with soil mixing improved the environmental conditions in the polluted soil samples, thus enhancing the growth and propagation of hydrocabonoclastic bacteria, accelerating oil-biodegradation to 94 % and 97.4 %, respectively. Both culture-dependent and culture-independent analyses revealed significant shifts in bacterial community composition due to oil introduction and treatment type. The culture-independent method revealed TM7a, A4b, and Skermanella as the most abundant taxa. Conversely, the culture-dependent method identified Arthrobacter spp., Georgenia sediminis, Mycobacterium doricum, Pseudomonas spp., and Sinorhizobium meliloti as the predominant hydrocarbonoclastic indigenous bacteria in the untreated and water-irrigated soil. In the sewage effluent-irrigated soil, Aeromonas and Enterobacter dominated using the culture-dependent method, while JG30-KF-CM45 was the most abundant, with no coliform detection in the culture-independent method. The current study showed that self-cleaning of oil-saturated soils could be accelerated using cost-efficient methods.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"389 ","pages":"126196"},"PeriodicalIF":8.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336195","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}