Cleaner Environmental Systems最新文献

{"title":"Evaluating the production efficiency of forest ecosystem product values: A spatiotemporal and econometric analysis from Shaanxi Province, China","authors":"Huaiyu Huang,&nbsp;Xiaojuan Chen,&nbsp;Qingsong Zhang,&nbsp;Zhiwen Gong,&nbsp;Keshav Ghimire","doi":"10.1016/j.cesys.2026.100414","DOIUrl":"10.1016/j.cesys.2026.100414","url":null,"abstract":"<div><div>The production efficiency of forest ecosystem product values (CEFVs) quantifies the extent to which ecological advantages are converted into economic gains, offering a reference for balancing forest protection and economic development. This study employs an integrated analytical framework to provide policy insights for sustainable development. The Super-SBM model is used to evaluate CEFVs in Shaanxi Province in China from 2010 to 2022, examining its evolution and spatial patterns. Regional disparities are investigated by the Dagum Gini coefficient, while the Spatial Durbin Model (SDM) explores influencing factors and spatial spillover effects. Findings include: (1) The average CEFVs in Shaanxi was 0.734, with a spatial pattern of “Northern Shaanxi &gt; Guanzhong &gt; Southern Shaanxi”. Temporally, CEFVs exhibited a phased fluctuation under the combined influence of policy accumulation and external shocks, peaking in 2021 before declining. Although 57% of counties experienced growth, 62% had not reached the high-efficiency level by 2022, reflecting weak growth quality and resilience. (2) Regional disparities in CEFVs followed a “W-shaped” trend, with the intensity of transvariation emerging as the main source of spatial imbalance. (3) Precipitation, economic development, government intervention, and industrial structure have a positive spillover effect, whereas per capita income and the development level of primary industry exert negative spatial spillover effects. These findings, particularly the identification of divergent spatial spillovers and the trend in regional disparities, offer a scientific basis for formulating differentiated regional policies. This study offers valuable insights for developing countries to balance economic development and environmental protection.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100414"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-criteria assessment of maize value chain sustainability: A case study of Thailand","authors":"Napat Jakrawatana ,&nbsp;Wiphaphorn Sombat ,&nbsp;Chuanchom Nitano ,&nbsp;Arisara Charoenpanyanet ,&nbsp;Patipat Vongruang ,&nbsp;Nakorn Tippayawong ,&nbsp;Shabbir H. Gheewala","doi":"10.1016/j.cesys.2026.100403","DOIUrl":"10.1016/j.cesys.2026.100403","url":null,"abstract":"<div><div>Maize-based feed production in Thailand and the Mekong region drives deforestation, residue burning, greenhouse gas emissions, and nutrient losses, yet integrated evidence on regenerative circular options is scarce. This study develops an integrated value-chain assessment combining substance flow analysis, carbon and phosphorus circularity indicators, 100-year carbon sequestration modeling, satellite-based burned-area and particulate matter estimates, and life cycle assessment to evaluate baseline performance and four improvement scenarios, from all-compost and all-pyrolysis pathways to a hybrid compost–pyrolysis system and highland agroforestry with maize import substitution. Results show that maximizing nutrient circularity does not guarantee maximal climate mitigation: all-compost strategies achieve high P recycling and zero burning but provide limited long-term carbon storage (10 % compost C stability over 100 years), whereas full pyrolysis can triple carbon sequestration by stabilizing residues as biochar (68 % stability), turning the sector into a net carbon sink. Agroforestry-based land-use change achieves the highest circularity (approximately 42 % C and 38 % P) by integrating perennial biomass, but it also introduces reliance on imported grain and potential leakage. Overall, the analysis highlights that technically optimal climate solutions face significant logistical barriers and that hybrid, node-matched configurations of pyrolysis, composting, and agroforestry, supported by targeted economic and policy instruments, provide the most realistic pathways to a genuinely regenerative circular maize value chain.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100403"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is greenhouse tomato production environmentally and economically sustainable in the long term? Evidence from life cycle and economic analyses in Northwest China","authors":"Xinjing Wang ,&nbsp;Mingke Zhang ,&nbsp;Xiaoqin Wang ,&nbsp;Congcong Duan ,&nbsp;Kuok Ho Daniel Tang ,&nbsp;Huiqi Yu ,&nbsp;Yamin Peng ,&nbsp;Dongli Liang ,&nbsp;Shuo Sun","doi":"10.1016/j.cesys.2026.100411","DOIUrl":"10.1016/j.cesys.2026.100411","url":null,"abstract":"<div><div>The environmental impacts of greenhouse vegetable production have garnered increasing attention, while the long-term economic and environmental sustainability of these systems remains largely unquantified. This study employs life cycle assessment (LCA) and cost-benefit analysis to evaluate the sustainability of three typical greenhouse tomato production systems in Northwest China: solar greenhouses, wide-span external thermal insulation plastic greenhouses (WSTP), and plastic sheds. A space-for-time substitution approach was applied to project the dynamics of environmental impacts and net economic benefits with increasing planting years, complemented by a sensitivity analysis assessing the influence of greenhouse-specific emission factors on the LCA outcomes. The results indicate that the solar greenhouse system delivers the highest net economic benefit due to winter production but concurrently exerts the greatest environmental pressure, particularly on land use. According to the projected data, after 15 years of cultivation, tomato yields and net economic benefits significantly decrease by 20–23% and approximately 30%, respectively, in both solar greenhouses and WSTP. Furthermore, the environmental impacts of solar greenhouses increase significantly over time across most indicators. The study reveals that long-term sustainability of solar greenhouses and WSTP, in terms of productivity and economic returns, is limited, primarily due to the enclosed environments and high inputs of chemical fertilizers, manure, and pesticides. Policymakers of these systems must carefully consider the trade-offs between economic benefits and environmental impacts. To enhance long-term sustainability, it is crucial to adopt eco-friendly management practices that reduce reliance on agrochemicals and improve greenhouse ventilation. The findings also highlight the importance of developing and applying emission factors specific to greenhouse systems, rather than relying on default values, to improve the accuracy of LCA for greenhouse systems.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100411"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Literature review of impact assessment methodologies in the bioeconomy","authors":"Maria Ana Romero ,&nbsp;José M. Gil","doi":"10.1016/j.cesys.2026.100410","DOIUrl":"10.1016/j.cesys.2026.100410","url":null,"abstract":"<div><div>This study conducts a comprehensive review and analysis of the scientific literature focused on methodologies used to assess the impact of the bioeconomy. The Scopus database was employed, together with analytical tools such as R and the Bibliometrix package, to perform co-authorship network analysis, thematic clustering, a review of the most applied methodologies, and multiple correspondence analysis of thematic evolution during 2014–2024.</div><div>Results show that bioeconomy research has mainly focused on environmental impact and life-cycle assessment, while progressively integrating cross-cutting concepts such as climate change, circular economy, and environmental economics. The formation of thematic clusters linked to countries, universities, and research centers is observed, alongside a significant increase in publications over the last decade, with more than 80% of papers published in high-impact journals.</div><div>From a methodological perspective, there is limited use of Input–Output (IO), Multi-Regional Input–Output (MRIO), and Computable General Equilibrium (CGE) models, despite their relevance for assessing systemic impacts. This gap highlights opportunities for future research to address the aggregate effects of the bioeconomy from macroeconomic and territorial perspectives. Applying these tools, particularly at regional levels, is essential to support evidence-based public policies that foster a fair, resilient, and sustainable transition.</div><div>Bioeconomy research is expected to continue evolving, with greater emphasis on quantifying economic and environmental impacts. Robust methodologies such as IO, MRIO, CGE, and their environmentally extended variants (EEIO) will be key to capturing systemic effects, value-chain linkages, and sectoral shifts, thereby enhancing the bioeconomy's transformative potential.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100410"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative life cycle assessment of recycling nickel slag in various production industries","authors":"He Zhou ,&nbsp;Wen Li ,&nbsp;Hakan Basarir ,&nbsp;Thomas Poulet ,&nbsp;Ali Karrech","doi":"10.1016/j.cesys.2025.100387","DOIUrl":"10.1016/j.cesys.2025.100387","url":null,"abstract":"<div><div>Nickel is an important element for the development of telecommunication, energy storage, and electric vehicles. However, large amounts of nickel slag are generated during the smelting process, posing threats to ecosystem and human health if landfilled, so the selection of appropriate nickel slag recycling technologies is vital to the environment. In this study, we evaluate nickel slag as potential input material for geopolymer pipes, asphalt, concrete, and mine backfill production in Australia. A cradle-to-gate life cycle assessment (LCA) is conducted to investigate the environmental impacts of those products embedding nickel slag, and the relevant influence compared to nickel slag landfilling. The results indicate that incorporating nickel slag in geopolymer pipes and mine backfill is more beneficial to the products’ sustainability. Notably, compared to the landfilling scenario, all the recycling applications are encouraged to be applied in practice.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100387"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of the environmental impacts of perovskite/silicon tandem and silicon heterojunction photovoltaic modules using a parameterised approach","authors":"Lu Wang ,&nbsp;Mathilde Marchand ,&nbsp;Lars Oberbeck ,&nbsp;Raphaël Jolivet ,&nbsp;Alejandra Cue Gonzalez ,&nbsp;Paula Perez-Lopez","doi":"10.1016/j.cesys.2025.100388","DOIUrl":"10.1016/j.cesys.2025.100388","url":null,"abstract":"<div><div>Photovoltaic technology is pivotal in the global energy transition, and while emerging technologies promise better performance, their environmental impacts must be carefully evaluated. Among these, perovskite/silicon (PSK/Si) tandem technology has garnered significant attention. However, existing Life Cycle Assessment studies on PSK/Si tandems exhibit significant uncertainty, complicating comparisons of environmental performance across different technologies. This study offers a comparative analysis of the environmental impacts of different PSK/Si tandem modules and silicon heterojunction (SHJ) modules, explicitly incorporating multiple sources of uncertainty to ensure a more comprehensive and reliable comparison. Uncertainty sources include uncertainty in 21 variable parameters (e.g., lifetime and power conversion efficiency), differences between two-terminal and four-terminal tandem architectures, and alternative degradation scenarios of tandem modules. Propagating these uncertainties through parameterised models allows for a direct comparison of the resulting distributions of environmental impacts for tandem and SHJ modules. For example, in the case of modules manufactured in France, PSK/Si tandems show climate change impacts ranging from 5.5 to 8.7 g CO₂ eq/kWh, whereas SHJ modules range from 6.3 to 9.4 g CO₂ eq/kWh. To streamline comparisons, global sensitivity analysis identifies the key parameters contributing most significantly to output uncertainty. These insights inform the development of simplified arithmetic models that require only a limited set of key inputs. Such models enable rapid, accurate estimation of environmental impacts for both PSK/Si tandem and SHJ modules, facilitating efficient and reliable comparisons. Overall, this work enhances understanding of the environmental performance of PSK/Si tandem and SHJ modules and supports strategies to improve their sustainability, thereby guiding strategic decision-making in the renewable energy sector.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100388"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detailed and simplified parameterized LCA models for early-stage energy projects: A microalgae-based biogas case","authors":"Andriamahefasoa Rajaonison ,&nbsp;Benoît Gschwind ,&nbsp;Raphaël Jolivet ,&nbsp;Cintia Gómez-Serrano ,&nbsp;Francisco Gabriel Acién Fernández ,&nbsp;Silvia Greses ,&nbsp;Cristina González-Fernández ,&nbsp;Paula Pérez-López ,&nbsp;Thierry Ranchin","doi":"10.1016/j.cesys.2025.100384","DOIUrl":"10.1016/j.cesys.2025.100384","url":null,"abstract":"<div><div>Developing renewable energy projects is a key strategy to reduce environmental impacts in the energy sector. Initial phases of the implementation of such kinds of projects include feasibility studies, conceptual design, and design development and permitting, with environmental considerations being crucial. This paper proposes detailed and simplified Life Cycle Assessment (LCA) models to support project developers. The study focuses on three specific environmental impact categories: abiotic depletion potential of fossil fuels (ADP:FF) and minerals/metals (ADP:MM) and climate change. These categories were selected to ease explanation and their direct relationship with system inputs and outputs facilitate the improvement of overall performance. Detailed models help project developers with the support of LCA experts identify processes contributing the most to environmental impacts, facilitating improvements during conceptual design, and design development and permitting. Simplified models can be directly and easily used by project developers to analyze environmental compliance of project options during feasibility studies. A detailed model uses parameters to describe system inputs and outputs, which is then simplified through Global Sensitivity Analysis to reduce the number of these parameters. In this paper, the proposed approach is applied to a microalgae-based biogas production system. Our detailed model uses 39 parameters, identifying materials and energy flows contributing to environmental impacts. Main contributors are enzymes production for pretreatment and CO₂ production for cultivation. The simplified models generated in this paper ease early estimation of environmental performance thanks to the use of less than 19 parameters instead of 39, reducing data collection time.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100384"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mapping the circular economy: Insights from 2,701 indicators","authors":"Zahir Barahmand ,&nbsp;Liang Wang ,&nbsp;Marianne Eikeland","doi":"10.1016/j.cesys.2025.100392","DOIUrl":"10.1016/j.cesys.2025.100392","url":null,"abstract":"<div><div>The circular economy (CE) is widely seen as a path to sustainability, yet it remains unclear whether its indicators fully reflect its overall contribution. Despite rapid growth, current classifications of CE indicators remain fragmented and are often based on limited datasets. To address this, this study maps 2701 CE indicators to provide a comprehensive overview of their thematic and structural distribution. A six-domain framework was applied (covering environmental, economic, social, circularity, technological, and legislative dimensions) and organized into 21 classes and 118 subgroups. To address inconsistencies, a hybrid labeling approach was introduced for classifying data types and economic levels. Results show that CE indicators collectively span all sustainability domains but remain unevenly distributed, with quantitative and meso-level indicators prevailing and micro-level ones underrepresented. Three key insights emerge: (1) large datasets reduce bias in CE assessment; (2) multi-level classification enables clearer interpretation; and (3) binary labeling oversimplifies contextual complexity. Overall, this mapping demonstrates that CE measurement has expanded beyond traditional circularity metrics toward broader sustainability integration, providing a foundation for more coherent indicator development and policy alignment.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100392"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applications of agent-based modelling in circular economy research: A systematic literature review","authors":"Samuel Assefa ,&nbsp;J. Gareth Polhill ,&nbsp;Jianyu Chen ,&nbsp;Ryu Koide ,&nbsp;Kathryn Colley ,&nbsp;Alice Hague ,&nbsp;Tony Craig","doi":"10.1016/j.cesys.2026.100402","DOIUrl":"10.1016/j.cesys.2026.100402","url":null,"abstract":"<div><div>The transition to a circular economy (CE) requires systemic perspectives to comprehend the complex behaviours of actors and support their decision-making processes. Agent-based modelling (ABM) has proven to be a promising approach to studying complex nonlinear phenomena in human and natural systems like CE. This critical review paper aims to understand the current state of ABM application in CE research and explore potential future study areas. Bibliometric and content analyses were applied with a stock of 45 articles employing ABM in CE, in addition to 13,797 CE articles that have <em>not</em> utilized ABM. The results called for expanding the application areas of CE research using ABM, focusing on policy and institutional environment, sustainable life cycle management, broadening scope of CE strategies, and social and environmental impacts. The content analysis revealed the need to employ more robust and up-to-date methodologies, such as theories underpinning agent behaviours, data sources and assumptions, validation and simulation procedure, replication of model runs, model representation and documentation, and stakeholders’ participation in the modelling process. This study introduces a participatory-integrated framework designed to equip CE researchers employing ABM with guidance for robust modelling and simulation practices. Such ABMs will offer valuable insights for developing effective policies, strategies, and business practices toward enhanced sustainability.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100402"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circular economy, circularity, and sustainability: A systematic review and conceptual framework","authors":"Anteneh D. Sewenet ,&nbsp;Youssef Boulaksil ,&nbsp;Paola Pisano","doi":"10.1016/j.cesys.2026.100405","DOIUrl":"10.1016/j.cesys.2026.100405","url":null,"abstract":"<div><div>Circular economy (CE), circularity, and sustainability are conceptually distinct yet intrinsically interconnected frameworks that collectively offer transformative potential for addressing global environmental, economic, and social challenges. While each has received substantial scholarly attention, their integrative relationships and cumulative implications remain under-theorized and operationalized. In particular, the link between circularity (the extent to which materials and products circulate within closed loops) and broader sustainability outcomes lacks systematic examination. This study presents a systematic literature review of 151 peer-reviewed articles retrieved from the Scopus and Web of Science databases following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2020) protocol. Through a critical synthesis and thematic analysis, this review evaluates foundational conceptual constructs, emergent research themes, and enduring conceptual and methodological gaps within the CE–circularity–sustainability nexus. In response, this review proposes a conceptual framework that elucidates the dynamic interlinkages among these concepts, thereby providing a structured pathway to guide interdisciplinary research, policy development, and strategic practice towards integrated and systemic sustainable development.</div></div>","PeriodicalId":34616,"journal":{"name":"Cleaner Environmental Systems","volume":"20 ","pages":"Article 100405"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}