Journal of Environmental Management最新文献

{"title":"Associations of street morphology and local wind environment with annual cumulative ambient PM2.5 exceedance: Evidence from Wuhan, China","authors":"Shibo Bi,&nbsp;Zheng Tian,&nbsp;Bo Zhang,&nbsp;Fei Dai","doi":"10.1016/j.jenvman.2026.130987","DOIUrl":"10.1016/j.jenvman.2026.130987","url":null,"abstract":"<div><div>Streets are important urban microenvironments where residents encounter ambient PM_2.5, while their pollution conditions are shaped by coupled spatial and aerodynamic processes. However, how street morphology, grey–green elements, and local ventilation are jointly associated with cumulative PM_2.5 exceedance remains insufficiently understood. Using 6785 streets in Wuhan, we classified streets into five typologies and developed a multidimensional indicator system integrating street geometry, grey–green elements, and the local wind environment. Annual cumulative excess exposure (ACEE) was defined as an ambient PM_2.5 exceedance indicator. Interpretable machine learning (CatBoost-SHAP) and partial least squares path modeling were combined to quantify type-specific predictive contributions, nonlinear response patterns, and direct and indirect pathways. Open street canyons accounted for more than 75% of the sampled streets, and the models explained over 70% of ACEE variation on average. Street geometry and wind environment jointly contributed more than 50%, although their relative importance varied across street types. In enclosed canyons, ACEE was mainly associated with the Building View Index and Sky View Factor, whereas wind-related indicators were more influential in open canyons, with street–wind angle (WA) and street wind speed (WS) contributing 25.28% on average. Model-derived WS breakpoints occurred at approximately 0.33 m/s (95% CI: 0.31-0.44 m/s) in enclosed canyons and 1.19 m/s (95% CI: 0.78-1.31 m/s) in open canyons. Green-space associations were context-dependent: higher visible greenery was positively associated with ACEE in enclosed canyons, whereas canopy ratio showed more consistent negative associations. These findings provide context-specific evidence for typology-sensitive street planning and air-quality management.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 130987"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149079259","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":"Study on delineation of core vegetation protection areas in the lower reaches of Tarim River based on SCP model","authors":"Ximing Li,&nbsp;Qi Liu,&nbsp;Yunfei Liu,&nbsp;Qian Jin,&nbsp;Xiaonan Chen,&nbsp;Dongwei Gui","doi":"10.1016/j.jenvman.2026.131037","DOIUrl":"10.1016/j.jenvman.2026.131037","url":null,"abstract":"<div><div>The lower reaches of the Tarim River serve as a crucial ecological barrier preventing the merger of the Taklimakan and Kumtag deserts. They have long faced water scarcity and intensifying conflicts between water use for oasis agriculture and desert ecosystems. Therefore, identifying the core vegetation conservation area and enhancing the effectiveness of ecological protection in this area are of paramount importance. Current research on the lower Tarim River mainly focuses on assessing ecological water conveyance benefits, monitoring vegetation restoration, and estimating ecological water requirements, while studies on delineating the core vegetation conservation area are notably lacking. However, arid regions often suffer from a scarcity of climate, environment, conservation costs, and biodiversity data, which makes existing delineation methods difficult to apply directly to the lower Tarim River. Consequently, based on local ecological features, this study proposes a method for delineating the core vegetation conservation area using a Spatial Conservation Planning (SCP) model that incorporates vegetation type, fractional vegetation cover (FVC), and groundwater level. The research generated a conservation priority sequence for the lower reaches. The core vegetation conservation area was defined as regions with FVC ≥ 0.3, groundwater level ≥ −6 m, and a priority ranking within the top 20% of the priority sequence. The final delineation identified a total core conservation area of 81 km², mainly distributed across 11 vegetation patches each &gt; 1 km². The delineation of the core conservation area provides precise spatial targets for ecological water conveyance and improves vegetation protection efficiency in the lower Tarim River. By embedding groundwater-vegetation coupling into an SCP framework and generating dynamically adjustable priority rankings, this study provides a replicable methodological template for precision conservation in other data-limited arid inland river basins-moving beyond species-centric or static zoning approaches toward adaptive, community-level ecosystem management.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131037"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102161","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":"Direct aqueous mineral carbonation of cementitious fines derived from hardened ready-mix concrete waste: Process performance and carbon accounting","authors":"V.N. Katambwe,&nbsp;B. Oladipo,&nbsp;A. Horvat,&nbsp;K. Ramasenya,&nbsp;H.-J. Ho,&nbsp;J.M. Shabani,&nbsp;G.J. Lentoor,&nbsp;V.R.K. Vadapalli,&nbsp;J. Petersen,&nbsp;A. Iizuka,&nbsp;L.F. Petrik,&nbsp;T.V. Ojumu","doi":"10.1016/j.jenvman.2026.131053","DOIUrl":"10.1016/j.jenvman.2026.131053","url":null,"abstract":"<div><div>The growing need to mitigate anthropogenic CO₂ emissions is driving the development of low-energy carbon capture and utilization technologies. Hardened ready-mix concrete waste represents an underexplored alkaline feedstock for direct aqueous mineral carbonation, offering opportunities for simultaneous CO₂ sequestration and waste valorisation. This study investigates direct aqueous mineral carbonation of concrete fines derived from hardened ready-mix concrete waste under ambient conditions using a CO₂ gas blend representative of cement plant flue gas. The influence of solid-to-liquid (S/L) ratio on dissolved Ca evolution, CO₂ uptake, CaCO₃ production, and degree of carbonation was evaluated, while a gate-to-gate carbon accounting framework assessed the environmental performance of the process. Geochemical equilibrium modelling was used to elucidate the mechanisms governing dissolved Ca evolution during carbonation. Feedstock and carbonation products were characterised. Surface morphology, thermogravimetric, and phase analyses confirmed successful carbonation and the formation of crystalline calcite. An S/L ratio of 1:10 achieved the highest total CO₂ uptake of 100.9 g-CO₂/kg-concrete fines (20.2 g CO₂ per 2 L batch), with 84.5 g-CO₂/kg-concrete fines permanently fixed as crystalline calcite. The modelling attributed the observed Ca rebound to continued decalcification of Ca-bearing phases coupled with evolving carbonate speciation. Carbon accounting indicated a net-positive footprint under laboratory conditions; however, substituting technical gases with industrial waste flue gas shifted the process toward a near net-zero carbon footprint. These findings establish hardened ready-mix concrete waste as a promising feedstock for direct aqueous mineral carbonation and highlight process integration with industrial flue gas and product valorisation as key pathways towards industrial implementation.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131053"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149069002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Resource translocation facilitates restoration of saline-alkali degraded grasslands by altering resource acquisition of dominant species","authors":"Jian-Yong Wang,&nbsp;Sergio R. Roiloa,&nbsp;Jing-Jing Liang,&nbsp;Naeem Ullah Khalil,&nbsp;Xin-Ying Dou,&nbsp;Xiu-Zhu Zhuo,&nbsp;Shi-Yu Wang,&nbsp;Xin-Yue Feng,&nbsp;Yue Yu,&nbsp;Zi-Yu Li,&nbsp;Fei-Hai Yu","doi":"10.1016/j.jenvman.2026.131055","DOIUrl":"10.1016/j.jenvman.2026.131055","url":null,"abstract":"<div><div>Clonal functional traits such as physiological integration (resource translocation between connected individuals) can promote the performance of clonal plants and modify their environments. Such performance promotion of dominant clonal plants may help restore degraded communities. To test this, we conducted one three-year field experiment and two complementary pot experiments to assess the ecological consequences of physiological integration of <em>Leymus chinensis</em>, at both community and individual levels, in a saline-alkali degraded grassland in northeastern China. Field-based results showed that physiological integration increased community biomass and improved soil conditions in degraded patches, and these impacts were amplified by nitrogen enrichment and defoliation. The complementary pot experiments further showed that the community-level responses were associated with coordinated changes in biomass allocation, root functional traits, and competitive interactions, thereby promoting the establishment and spatial expansion of <em>L. chinensis</em>. Our study demonstrates that resource translocation through physiological integration facilitates degraded grassland restoration by coordinating above- and belowground resource acquisition of dominant clonal plants across heterogeneous environments. These findings provide a mechanistic framework linking individual-level resource translocation to community-level restoration, and highlighting the ecological importance of clonal functional traits in degraded vegetation restoration.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131055"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149073014","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":"Water quality–carbon coupling in a human-impacted river network: Contrasting CO2 supersaturation and CH4 sink strength along oxidizable loading and seasonal gradients","authors":"Junwen Hou,&nbsp;Jiancheng Li,&nbsp;Yu Yang,&nbsp;Zhichao Yun,&nbsp;Bin Wang,&nbsp;Xu Han,&nbsp;Qiyuan Liu,&nbsp;Yonghai Jiang,&nbsp;Fu Xia","doi":"10.1016/j.jenvman.2026.131065","DOIUrl":"10.1016/j.jenvman.2026.131065","url":null,"abstract":"<div><div>Routine river monitoring often evaluates water quality separately from greenhouse-gas disequilibrium, limiting its use for integrated carbon assessment. We investigated dissolved CO₂ and CH₄ at 16 sites across the Liao River during July and December 2024, a wetter-than-normal sampling year, and related their patterns to hydrochemistry, EEM-PARAFAC-derived dissolved organic matter (DOM) descriptors, and 16S rRNA-based microbial attributes. CO₂ was supersaturated at all sites, indicating persistent source potential across the river network, whereas CH₄ was predominantly undersaturated, with 27 of 32 observations below atmospheric equilibrium and only localized positive patches. CO₂ supersaturation was most closely associated with an oxidizable loading–DOM optical quality gradient: COD_Mn provided the clearest water-quality signal, while HIX, BIX, and ureolysis further reflected DOM processing conditions. The CO₂ response increased most strongly within the observed COD_Mn range of approximately 2.4–4.5 mg L⁻¹ and remained elevated above ∼5 mg L⁻¹. In contrast, CH₄ sink strength was most strongly associated with seasonal temperature structure, with BIX and dissolved oxygen representing related DOM freshness and oxygen-background dimensions. Most microbial diversity and FAPROTAX-inferred functional signals covaried with the same thermal–DOM–oxygen background, except for the selective CO₂-related signal of ureolysis. These results indicate that routine COD_Mn monitoring and DOM optical diagnostics can help identify reaches associated with elevated CO₂ supersaturation, whereas CH₄ assessment requires seasonally resolved monitoring and targeted evaluation of localized source-like conditions.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131065"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149073095","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":"Corrigendum to ‘Change in diversity patterns of fish by cascade dams: comprehensive dataset of eDNA and traditional evidence from the Jinsha River’ [J. Environ. Manag. 413 (2026) 130369]","authors":"Hang Xiao,&nbsp;Chenzhou Yang,&nbsp;Xiaoning Liu,&nbsp;Lei Cui,&nbsp;Haobo Zhang,&nbsp;Dongshuo Lu,&nbsp;Xueli Wan,&nbsp;Xiner Ning,&nbsp;Xi Jiang,&nbsp;Jianbo Chang","doi":"10.1016/j.jenvman.2026.131079","DOIUrl":"10.1016/j.jenvman.2026.131079","url":null,"abstract":"","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131079"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149101802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Urban parks as potential hotspots for pathogenic determinants: A One Health perspective on environmental-human transmission risks","authors":"Xianxian Mu,&nbsp;Jie Bi,&nbsp;Qiaoling Yu,&nbsp;Qian Han,&nbsp;Xiaochen Wang,&nbsp;Huan Li","doi":"10.1016/j.jenvman.2026.131067","DOIUrl":"10.1016/j.jenvman.2026.131067","url":null,"abstract":"<div><div>Urban parks are vital public spaces, yet their role as potential reservoirs and transmission pathways for pathogenic bacteria under the “One Health” framework remains poorly understood. We gathered paired soil, water, and human fecal samples from nine parks in Lanzhou, China. Metagenomic and 16S rRNA sequencing revealed abundant pathogenic bacteria, virulence factor (VF) genes, and pathogen-host interaction (PHI) genes. Pathogenic bacteria were significantly more abundant in water than in soil, and their presence was positively correlated with key environmental nutrients (TC, TN, TP, TS). Immune modulation and motility genes dominated the VF repertoire, while PHI genes primarily mediated virulence attenuation, maintenance, or enhancement. Crucially, the profile of these virulence genes was significantly shaped by the native bacterial community and mobile genetic elements (MGEs). Metagenomic binning provided direct genomic evidence that MGEs frequently co-localize with VF and PHI genes, demonstrating a high potential for horizontal gene transfer from park environments to humans. Our findings highlight urban parks as significant environmental reservoirs for pathogenic determinants and delineate the ecological and genetic drivers of their dissemination, providing a critical basis for targeted environmental management and public health protection.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131067"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102153","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 smart manufacturing improve energy efficiency in manufacturing enterprises? Empirical evidence from China's A-share listed manufacturing firms","authors":"Shufang Sun,&nbsp;Xiaoping Ruan","doi":"10.1016/j.jenvman.2026.131050","DOIUrl":"10.1016/j.jenvman.2026.131050","url":null,"abstract":"<div><div>Improving energy-use efficiency is essential for industrial green transformation and China's carbon-peaking and carbon-neutrality goals. Using panel data on Chinese A-share-listed manufacturing firms from 2011 to 2024, this study treats the national smart manufacturing pilot demonstration program as a quasi-natural experiment and applies a staggered difference-in-differences model and mechanism analysis to examine the effect of smart manufacturing on firm energy-use efficiency. The results show that smart manufacturing significantly improves energy-use efficiency, and this finding remains robust to alternative specifications, endogeneity checks, and heterogeneity-robust DID estimators. Mechanism estimates are consistent with three theoretically specified channels—digital empowerment, green innovation, and resource-allocation optimization. The effect is more pronounced among state-owned enterprises, firms with high R&amp;D intensity, and firms in non-heavily polluting industries. These findings provide firm-level evidence on the energy-efficiency benefits of smart manufacturing and offer policy implications for energy-efficient industrial upgrading and a potential low-carbon transition.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131050"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102179","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":"Meandering shorelines: The potential for multi-level habitat complexity to ecologically enhance artificial coastal defences","authors":"Janine Ledet,&nbsp;Kingsley J. Griffin,&nbsp;Peter A. Todd","doi":"10.1016/j.jenvman.2026.131059","DOIUrl":"10.1016/j.jenvman.2026.131059","url":null,"abstract":"<div><div>Artificial coastal defences simplify, linearize, and homogenize the coast, leading to reduced species diversity, ecological functioning, and ecosystem services. Previous active management research has shown that greater habitat complexity at millimeter to decimeter scales increases the diversity of fauna and flora living on constructed shores, however, little is known regarding the potential effects of increasing the scale of complexity on larger marine species. Testing this experimentally is challenging, hence, as a first step, we conducted a meta-analysis on movement patterns, home ranges, and body size for a wide range of coastal marine species. We found that as mean body length of species increases, so does the distance travelled, home range, and core activity areas. To widen the variety of niches created and reduce a key negative aspect of coastal engineering, we argue that the design and planning of future coastal defences should consider incorporating more complex structures across scales from millimetres to kilometres.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131059"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Passive Ecovoltaics: Solar power plants as semi-natural ecosystems via spontaneous succession in forest landscapes","authors":"Miharu Nakatani,&nbsp;Akira Noda,&nbsp;Takeshi Osawa","doi":"10.1016/j.jenvman.2026.131014","DOIUrl":"10.1016/j.jenvman.2026.131014","url":null,"abstract":"<div><div>The rapid expansion of solar photovoltaic (PV) facilities poses challenges for biodiversity conservation. While \"Ecovoltaics\" aims to reconcile energy production with ecological restoration, current strategies primarily rely on active management, such as targeted seeding, based largely on European agricultural contexts. This study investigated the potential of a \"Passive Ecovoltaics\" approach in Monsoon Asia, characterized by mosaic landscapes that include forests. Our study site was a PV facility in a Japanese forested landscape, maintained without artificial seeding for five years since becoming operational. We conducted vegetation surveys to compare species diversity and composition across different microhabitats. The results showed that plant communities under solar panels resembled those of forest edges and maintained species diversity comparable to grasslands unaffected by panels. This suggests that shading by panels exerts environmental filtering that facilitates the establishment of forest-dwelling species. Furthermore, despite the large scale of the facility, the vegetation under the panels near the center remained similar to that of the forest edges. This is likely because the intricate shape of the facility enabled sufficient seed dispersal from the adjacent forest throughout the site. We propose a \"Passive Ecovoltaics\" model, demonstrating that solar PVs can function as regional semi-natural habitats through secondary succession and minimal management (e.g., biannual mowing). However, the success of this model depends on (1) a high potential for seed supply from the surroundings and (2) a facility scale and shape that allow for sufficient seed dispersal. To avoid adverse ecological impacts, careful application in appropriate landscape contexts is required.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131014"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}