Akbar Arvansyah, Chunyi Wang, Kaichen Zhang, Xinran Yu, Yuting Zhang, Guozhu Mao
{"title":"Coastal bird migration exposure as a spatial constraint for wind energy and airports in eastern China","authors":"Akbar Arvansyah, Chunyi Wang, Kaichen Zhang, Xinran Yu, Yuting Zhang, Guozhu Mao","doi":"10.1016/j.jclepro.2026.149411","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149411","url":null,"abstract":"Bird migration creates collision risks for wind farms and airports, yet many regions lack radar and bird strike data for infrastructure planning. Using eBird checklist data, distance to coast, and weekly reanalysis climate variables, we developed a screening level assessment of migration exposure for eastern China's lowlands, a key segment of the East Asian-Australasian Flyway. Migration intensity was aggregated to 25 km grid cells and weekly periods for spring and autumn 2021–2025. Distance to coast (0–300 km) captured a weak but temporally consistent decline in exposure inland, with negative slopes across all ten migration seasons. At the 25 km weekly resolution used here, the selected weekly climate metrics explained little of the week-to-week variation in the eBird based migration exposure index. We summarized this coastal gradient into simple high- (0–100 km), medium- (100–200 km), and low-exposure (200–300 km) belts for screening-level mapping, providing a transparent migration-exposure map for planners. This distance-based zonation does not provide operational forecasts or calibrated collision-risk estimates but offers a practical, within region screening framework for identifying relative exposure patterns where high-resolution migration and strike datasets are unavailable. By steering new projects away from the highest-exposure coastal belts where feasible, the approach supports cleaner production by helping avoid costly ecological conflicts, retrofits, and operational constraints.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"18 1","pages":"149411"},"PeriodicalIF":11.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946955","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}
Liangpeng Wu, Xiaoyong Zhou, Qingyuan Zhu, Lei Meng
{"title":"Climate change, ecosystem service value loss, and adaptive policy evaluation: Evidence from Chinese cities","authors":"Liangpeng Wu, Xiaoyong Zhou, Qingyuan Zhu, Lei Meng","doi":"10.1016/j.jclepro.2026.149431","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149431","url":null,"abstract":"Climate change increasingly threatens regional ecosystem service value (ESV), while mismatches between ecological pressures and adaptive policy capacity may constrain sustainable development. This study combines climate-grid data, land-cover-derived ESV accounts, and panel data for 281 Chinese prefecture-level cities (2000–2020) to estimate associations between long-term climate normals and ESV. We then analyze 21,930 ecological policy documents using the Qwen2.5 large language model to characterize policy scope, depth, and speed, and use a two-dimensional framework to describe policy–ecology coordination. Results show that higher temperature normals are associated with lower ESV, with larger estimated losses in warmer regions, whereas higher precipitation normals are associated with higher ESV. The cumulative ESV loss associated with observed long-term climate changes exceeds 30 billion yuan; hydrological regulation accounts for the largest estimated loss (7.47 billion yuan). Policy–ecology coordination displays an east–central–west gradient, but the policy scores are text-based indicators and the coordination analysis is descriptive rather than causal. Effective adaptation therefore requires policy design to be aligned with local ecological conditions and implementation capacity.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"26 1","pages":"149431"},"PeriodicalIF":11.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946979","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}
{"title":"Human preference and vegetation features enhance soil carbon sequestration in urban green spaces: implications from soil oxidizable carbon fractionation","authors":"Jieyong Zhan, Wenzhuo He, Yuhang Chen, Danqi She, Junrui Han, Xiangnan Fan, Siyu Liu, Yanbo Yang, Huimei Wang, Wenjie Wang","doi":"10.1016/j.jclepro.2026.149421","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149421","url":null,"abstract":"Urban areas drive >70% of global energy CO<ce:inf loc=\"post\">2</ce:inf> emissions, positioning urban green spaces as critical yet underoptimized nature-based climate solutions. However, coupled effects of human preferences (a proxy for management probability and public use patterns) and multi-layer vegetation on soil organic carbon (SOC) stability remain poorly understood, hindering evidence-based low-carbon urban management. We surveyed 370 subtropical urban forest plots to disentangle drivers of four soil oxidizable carbon fractions: very labile, labile, less labile, and non-labile, covering human preference metrics, vegetation traits, soil nutrients, aggregation and water-holding capacity (total 63 parameters). Redundancy analysis, variation partitioning and partial least squares structural equation modeling revealed: (1) Tall, large-diameter, and low density trees combined with sparse-short herb layers significantly elevated less & non-labile fractions and improved the soil carbon stability, a vegetation structure strongly aligned with high-human-preference areas subject to intensive management near roads; (2) Soil total nitrogen (explaining 28.9% of SOC fraction variation) and glomalin-related soil protein were the dominant direct regulators of carbon accrual, while soil aggregate stability and water-holding capacity acted as core mediators linking vegetation/human factors to SOC dynamics; (3) Human preference mainly exerted indirect effects on SOC and its fractions via regulating soil nutrient availability, physical structure and water-holding capacities. We propose a preference-stratified management framework, and recommend \"tall open-canopy trees + sparse herb\" configuration at high human preferred regions reconciling recreational demands with long-term carbon sequestration. Our findings highlights that integrating appropriate vegetation and human preferences can enhance soil carbon sequestration—a nature-based pathway toward low-carbon urban transition.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"13 1","pages":"149421"},"PeriodicalIF":11.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946953","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}
{"title":"Synergistic water regulation and byproduct confinement in non-woven fabric-encapsulated Al@MgH2 for controlled hydrogen generation via parallel and sequential reactor designs","authors":"Yu Xiong, Lizhong Duan, Huihu Wang, Shenghao Jiang, Chenhuinan Wei, Xing Xiang, Yun Zhao, Qianyu Wang","doi":"10.1016/j.jclepro.2026.149416","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149416","url":null,"abstract":"Active Al-based composite hydrolysis for hydrogen production holds broad application prospects in proton exchange membrane fuel cells (PEMFCs). However, key challenges such as controllability of hydrogen production, byproduct recovery, and hydrogen purity still need to be addressed. This study tackles these issues by designing a non-woven fabric-encapsulated hydrogen production unit and two hydrolysis reactors. This unit consists of a non-woven fabric envelope and an internal Al@30 % MgH<ce:inf loc=\"post\">2</ce:inf> block. The regular pore structure of the non-woven fabric regulates water mass transfer and confines byproducts. This leads to effective control of hydrogen production, enhanced solution utilization, and one-step byproduct recovery. The parallel and sequential hydrogen production reactors were designed according to the hydrolysis characteristics of the encapsulated unit. The flow paths of the reaction solution were controlled accordingly. Under low solution flow rate conditions, the parallel reactor achieved a stable hydrogen generation rate (sHGR) of 1.36 mL s<ce:sup loc=\"post\">−1</ce:sup> over 3573 s. The measured total hydrogen generation was 4579 mL. In contrast, the sequential reactor maintained a sHGR of 0.84 mL s<ce:sup loc=\"post\">−1</ce:sup> over 5177 s. The measured total hydrogen generation was 4448 mL. Purity tests confirmed that the hydrogen purity exceeded 99.2 %. This study combines physical encapsulation, solution injection strategy, and reactor design. This integrated approach overcomes the explosive reaction of active powders, achieves tunable hydrolysis kinetics, and provides a practical pathway from laboratory to application.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"18 1","pages":"149416"},"PeriodicalIF":11.1,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946985","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}
Qin-Pei Xue, Hong-Xin Chen, Shi-Jin Feng, Dong-Jiang Lv, Song-Ying Niu, Ping Shen, Thomas Lok
{"title":"Coupling effect of stress and dry-wet cycles on self-healing performance of geopolymer cutoff wall backfills incorporating microcapsules","authors":"Qin-Pei Xue, Hong-Xin Chen, Shi-Jin Feng, Dong-Jiang Lv, Song-Ying Niu, Ping Shen, Thomas Lok","doi":"10.1016/j.jclepro.2026.149413","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149413","url":null,"abstract":"Cutoff walls are widely used to prevent lateral migration of contaminated groundwater in geoenvironmental applications. The change in hydraulic conductivity (<ce:italic>k</ce:italic><ce:inf loc=\"post\"><ce:italic>w</ce:italic></ce:inf>) due to dry-wet cycles (DWC) has been recognized as a long-term performance concern for cutoff walls. Most existing laboratory methods are unable to maintain stress effects during continuous DWC processes, which limits accurately assessing <ce:italic>k</ce:italic><ce:inf loc=\"post\"><ce:italic>w</ce:italic></ce:inf> of cutoff wall backfills. This work developed an experimental apparatus to reproduce the coupling effect of stress and DWC on the microcapsule self-healing cutoff wall backfill (MSHCWB). Supplementary crack closure observations under unstressed condition were also conducted. The microstructural characteristics were measured by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Computed Tomography (CT). MSHCWB exhibited promising self-healing capability, achieving over 50% crack width reduction and up to 236.71% improvement in crack closure rate after 28 days of healing. Under the axial stress of 150 kPa, the <ce:italic>k</ce:italic><ce:inf loc=\"post\"><ce:italic>w</ce:italic></ce:inf> of MSHCWB containing 8% microcapsules remained below 1 × 10<ce:sup loc=\"post\">−9</ce:sup> m/s after ten DWC. The microcapsule structure, whether single-walled or double-walled, had little effect on the <ce:italic>k</ce:italic><ce:inf loc=\"post\"><ce:italic>w</ce:italic></ce:inf> under higher axial stress. The axial stress reduced the pore space and decreased the seepage path to enhance impermeability, while higher stress level also positively contributed to microcapsule rupture and the self-healing process. The empirical function of <ce:italic>k</ce:italic><ce:inf loc=\"post\"><ce:italic>w</ce:italic></ce:inf> with respect to the cycle number and axial stress was further proposed. The axial stress substantially influences the variation magnitude of <ce:italic>k</ce:italic><ce:inf loc=\"post\"><ce:italic>w</ce:italic></ce:inf> during the DWC, which requires consideration in cutoff wall design.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"13 1","pages":"149413"},"PeriodicalIF":11.1,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946984","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}
{"title":"Structural vulnerability and operational adaptation: Insights from ecological network analysis of China's chromium supply chain security","authors":"Yihang Xiang, Xin Li, Fanjie Luo, Yuying Chen, Minxi Wang, Chunxu Gong","doi":"10.1016/j.jclepro.2026.149386","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149386","url":null,"abstract":"The key mineral chromium is a core feedstock for stainless steel production and irreplaceable in modern industry. China is the world's largest importer and consumer of chromium, with a 99% import dependence on chromite. Global chromium market fluctuations can have a strong impact on China's domestic supply chain. Currently, rising geopolitical tensions and U.S.-China trade frictions have further amplified supply chain security risks, making it critical to evaluate China's chromium supply chain security. Therefore, this research applies ecological network analysis (ENA) to assess the structural and operational dynamics of China's chromium supply chain from 2000 to 2023 to provide policy-relevant evidence for maintaining supply stability and strengthening supply chain security. The research results show that: (1) Structurally, China's chromium supply chain exhibits high sensitivity to policy shifts in core chromium-associated countries. The ENA system of China's chromium supply chain is dominated by competitive inter-compartment relationships, with persistently weakening indirect effects, low complexity, and limited internal connectivity, driving rising systemic vulnerability. (2) Operationally, the expansion of China's chromium supply chain has contributed to an enhancement in its overall stability. Over time, there has been an improvement and stabilization in the alignment between resource availability and the system's capacity. (3) Scenario analysis shows that supply and demand contractions alter inter-compartment competitive dynamics and reduce system synergy, and that balancing supply and demand does not always yield positive system outcomes. Based on these findings, this paper proposes policy recommendations including: implementing precise and balanced supply, elevating the strategic status of secondary chromium, promoting collaborative governance across the industrial chain, and advancing follow-up research on the chromium supply chain.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"77 1","pages":"149386"},"PeriodicalIF":11.1,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946983","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}
Kamal Sharma, Soma Bharti, Rashi Jain, Pratap C. Mohanty
{"title":"Green efficiency under heterogeneous technologies: Evidence from Indian manufacturing industry","authors":"Kamal Sharma, Soma Bharti, Rashi Jain, Pratap C. Mohanty","doi":"10.1016/j.jclepro.2026.149272","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149272","url":null,"abstract":"The manufacturing industry is central to India's economic growth, but it also accounts for substantial energy use and CO<ce:inf loc=\"post\">2</ce:inf> emissions. An understanding of green efficiency under heterogeneous technologies is crucial for designing differentiated industrial decarbonisation strategies. This study evaluates the green efficiency of 21 manufacturing industries in India from 2010 to 11 to 2022-23 using an input-oriented window data envelopment analysis model within a metafrontier framework. Labour, capital, and energy are used as inputs, gross sales are used as the desirable output, and CO<ce:inf loc=\"post\">2</ce:inf> emissions are treated as the undesirable output. A non-linear path in green efficiency is observed, indicating a broad transitional adjustment process accompanied by technical inefficiencies. Significant industry heterogeneity is observed, with technology-intensive industries remaining closest to the frontier, while labour- and capital-intensive industries exhibit persistent inefficiencies and technology gaps. Policy recommendations are proposed to facilitate cluster-specific strategies for improving green efficiency.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"349 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883839","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}
F. Valentini, G. Cucci, V. Marangoni, M. Leppert, G. Brioschi, A. Dorigato
{"title":"Cradle to grave life cycle assessment of retreaded truck tyres: an industrial case study in Italy","authors":"F. Valentini, G. Cucci, V. Marangoni, M. Leppert, G. Brioschi, A. Dorigato","doi":"10.1016/j.jclepro.2026.149169","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149169","url":null,"abstract":"The transition to climate-neutrality by 2050 requires decarbonizing mobility and among the different materials used in this sector there is the urgent need to decarbonize tyres. Despite the problems related to the recycling of tyres, retreading is a technology already available on the market that, prolonging the useful service life of tyres, allows considerable environmental advantages. However, its diffusion is still limited and concentrated in the truck sector with a decreasing trend in the last decade. This study presents for the first time a cradle to grave Life Cycle Assessment (LCA) that compares the environmental performance of two product systems, i.e. retreaded truck tyres and virgin truck tyres. The study is based on primary data, when available, and on secondary data or estimations, when necessary. The results show that retreading allows a considerable reduction in the environmental impact of tyres: up to 50 % in the climate change impact category, 52 % in the fossil fuels consumption, 49 % in the consumption of natural resources, 55 % in the water use, 37 % in the PM<ce:inf loc=\"post\">10</ce:inf> emission and 10 % in the PM<ce:inf loc=\"post\">2.5</ce:inf> emissions. Moreover, retreading allows for a reduction up to 46 % in the use of natural rubber (EU is 100 % import-reliant on this material). These findings highlight the urgent need for policies that can promote the diffusion of retreading on a larger scale in case of truck tyres and that support the creation of a dedicated supply chain for the retreading of car tyres.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"35 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883841","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}
{"title":"Investigating the regulatory effects of surfactants to design high-performance and eco-friendly soybean oil-based emulsions for the manufacturing industry","authors":"Liyun Zhang, Yanyan Yan, Zhankui Wang, Congming Wu","doi":"10.1016/j.jclepro.2026.149288","DOIUrl":"https://doi.org/10.1016/j.jclepro.2026.149288","url":null,"abstract":"To address the critical challenges associated with vegetable oil-based emulsions in the ultra-precision machining of TC4 titanium alloy-namely, insufficient stability, limited lubrication performance, and environmental compatibility concerns-the regulatory regulation mechanism of surfactant charge characteristics and molecular configuration on the multiscale properties of emulsions was systematically investigated. The results revealed that the anionic surfactant (SDBS) significantly enhanced interfacial mass transfer and oil droplet replenishment through the formation of a low-viscosity, small-droplet-size emulsion system, thereby inducing a stable mixed lubrication film at the friction interface. In addition, its strong adsorption behavior, in conjunction with ultrasonic cavitation effects, promoted the in-situ generation of a dense TiO<ce:inf loc=\"post\">2</ce:inf> passivation layer on the TC4 surface. This dual composite structure, consisting of an adsorption layer and a passivation film, endowed the system with remarkable corrosion resistance. Regarding machining performance, the SDBS emulsion facilitated efficient swarf removal and suppressed interfacial adhesion by virtue of its superior wetting and spreading capability and high oil film load-bearing capacity, while also minimizing the wear and blunting of diamond abrasives. Compared with the T80 and CTAC systems, the SDBS system reduced tool wear rates by 35.12% and 31.05%, respectively, and increased material removal rates by 25.14% and 20.11%. Furthermore, this system exhibited satisfactory antibacterial activity and low biotoxicity, demonstrating notable eco-friendly characteristics. Collectively, these findings provide a systematic theoretical and experimental foundation for the design of plant oil-based emulsions tailored for green and high-efficiency manufacturing processes.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"38 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883899","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}