Sustainable Production and Consumption最新文献_第8页

Evaluating the environmental impacts of self-sustaining batteries for electric vehicles: Influence of user charging behaviour 评估电动汽车自持电池对环境的影响：用户充电行为的影响

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-24 DOI: 10.1016/j.spc.2025.08.013

Lea D'amore , Maeva Lavigne Philippot , Maarten Messagie

Optimizing charging time has become essential with the increasing electrification of the vehicle fleet. However, fast charging can accelerate battery degradation, reducing the battery's lifespan. To address this challenge, batteries and cooling systems are being developed with enhanced capacities to support fast charging. This paper evaluates the environmental impacts of such improved systems using a comparative cradle-to-grave life cycle assessment. The performance of the enhanced system is compared to that of a reference system currently available on the market, under two scenarios: an overnight charging scenario and a fast-charging scenario. An additional scenario is modeled to reflect a limit on the number of fast charges per month to avoid battery replacement. While most existing studies that include battery degradation look at fast-charging effects, they often do not define scenarios based on individual user charging choices and therefore, potential switch between fast and slow charging. In this study, the functional unit is 1 km driven, and the need for battery replacement is calculated using results from ageing tests at the cell level. A sensitivity analysis is also conducted to evaluate the influence of a more decarbonized electricity mix. In the overnight charging scenario, for Ecotoxicity Freshwater, the reference system performs better. Under fast-charging scenario, the improved system outperforms the other across all impact categories. With a decarbonized electricity mix, the reference system performs better across more categories in the overnight charging scenario. Overall, the study demonstrates that the comparative environmental results of the two systems depend strongly on the charging scenario.

随着汽车电气化程度的提高，优化充电时间变得至关重要。然而，快速充电会加速电池退化，缩短电池寿命。为了应对这一挑战，电池和冷却系统正在开发增强容量，以支持快速充电。本文使用比较摇篮到坟墓的生命周期评估来评估这种改进系统的环境影响。在夜间充电和快速充电两种情况下，将增强型系统的性能与市场上现有的参考系统进行了比较。另外还模拟了一个场景，以反映每月快速充电次数的限制，避免更换电池。虽然大多数现有的研究都着眼于快速充电的影响，但它们通常没有根据个人用户的充电选择来定义场景，因此也就没有考虑到快速充电和慢速充电之间的潜在切换。在本研究中，功能单元行驶1公里，使用电池级老化测试的结果计算电池更换需求。还进行了敏感性分析，以评估更低碳的电力组合的影响。在夜间充电情况下，对于生态毒性淡水，参考系统表现更好。在快速充电场景下，改进后的系统在所有影响类别中都优于其他系统。使用脱碳电力组合，参考系统在更多类别的夜间充电场景中表现更好。总体而言，研究表明，两种系统的比较环境结果在很大程度上取决于收费方案。

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引用次数: 0

Understanding the effects of mining and processing parameters on Life Cycle Assessment of Greenbushes Spodumene production 开采和加工参数对绿灌丛锂辉石生产生命周期评价的影响

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-24 DOI: 10.1016/j.spc.2025.08.014

Shayan Khakmardan , Robert H. Crawford , Damien Giurco , Wen Li

The rapid transition to clean energy has intensified demand for lithium, a critical element for battery production, yet lithium extraction imposes substantial environmental burdens. While the Life Cycle Assessment (LCA) provides a snapshot of environmental impacts, it does not account for dynamic changes in mining and processing operations, such as declining ore grade. This study conducts comprehensive LCAs of Spodumene ore and concentrate production from 2009 to 2023 at the Greenbushes project, empirically analysing how variable parameters influence environmental impacts. Regression analysis identifies the waste-to-ore ratio as the most significant factor affecting most of the mining-related impacts, while ore grade and yield play a dominant role in processing operations for most of the impact categories. Consequently, the global warming potential of producing Spodumene concentrate increased by almost 42.7 % between 2011 and 2023. Moreover, electricity and grinding media consistently contributed the most to the carbon footprint throughout the study period, though their combined share declined from 81.1 % to 57.1 %, whereas diesel consumption rose from 3 % to nearly 20.1 %, mainly due to site expansion.

向清洁能源的快速转型增加了对锂的需求，锂是电池生产的关键元素，但锂的开采带来了巨大的环境负担。虽然生命周期评估（LCA）提供了环境影响的概览，但它没有考虑采矿和加工作业的动态变化，例如矿石品位下降。本研究对Greenbushes项目2009 - 2023年锂辉石矿石和精矿生产进行了综合LCAs，实证分析了变量参数对环境影响的影响。回归分析表明，废矿比是影响大多数采矿相关影响的最重要因素，而矿石品位和产量在大多数影响类别的处理作业中起主导作用。因此，2011年至2023年间，锂辉石精矿生产的全球变暖潜势增加了近42.7%。此外，在整个研究期间，电力和研磨介质对碳足迹的贡献一直最大，尽管它们的总份额从81.1%下降到57.1%，而柴油消耗从3%上升到近20.1%，主要是由于场地扩张。

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引用次数: 0

Towards comparable life cycle assessments: Remodeling-based harmonization of polylactic acid waste depolymerization studies 迈向可比生命周期评估：基于重构的聚乳酸废弃物解聚协调研究

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-22 DOI: 10.1016/j.spc.2025.08.015

Nil Güreli , Jörn-Christian Meyer , Grit Walther

As the use of polylactic acid (PLA) bioplastics grows, sustainable waste management options such as depolymerization become increasingly important. Evaluating its environmental impact relies on life cycle assessment (LCA), but differences in methodological choices (e.g., LCIA method), product system characteristics (e.g., geographical scope), and modeling environment (e.g., software) often lead to incomparable results. This study examined how such variations affect LCA results for PLA depolymerization through a two-stage approach, consisting of (i) a comparative assessment of all 9 life cycle inventory (LCI) datasets identified in the literature (from 6 studies up to December 2023), which revealed key inconsistencies such as insufficient process detail and data gaps on additives and catalysts, and (ii) a remodeling-based harmonization of the studies using consistent LCA parameters, addressing often overlooked factors including database choice, geographic location, and life cycle impact assessment (LCIA) method. The harmonized results show that the choice of LCI database significantly affects outcomes, especially regarding substitution products. Geographic differences related to energy mix also have notable impacts, while the LCIA method choice has minimal effect. The harmonized global warming potential (GWP) of PLA depolymerization ranges from −2869 to −1378 kg CO₂-eq per megagram (Mg, 1000 kg) of PLA waste. This remodeling-based harmonization can be applied across different fields to improve the consistency and comparability of LCA studies, enabling assessments that can reflect the actual performance of different product systems. The findings highlight the need for transparency in LCA assumptions; therefore, we provide recommendations to improve the reliability and reproducibility of future studies.

随着聚乳酸（PLA）生物塑料的使用增长，诸如解聚等可持续废物管理选择变得越来越重要。评估其环境影响依赖于生命周期评估（LCA），但方法选择（如LCIA方法）、产品系统特征（如地理范围）和建模环境（如软件）的差异往往导致无法比较的结果。本研究通过两阶段方法考察了这些变化如何影响PLA解聚的LCA结果，包括(i)对文献中确定的所有9个生命周期清单（LCI）数据集进行比较评估（从6项研究到2023年12月），揭示了关键的不一致性，例如过程细节不足和添加剂和催化剂的数据缺口；（ii）使用一致的LCA参数对研究进行基于重构的协调。解决经常被忽视的因素，包括数据库选择、地理位置和生命周期影响评估（LCIA）方法。协调的结果表明，LCI数据库的选择显著影响结果，特别是在替代产品方面。与能源结构相关的地理差异也有显著的影响，而LCIA方法选择的影响最小。聚乳酸解聚的协调全球变暖潜势（GWP）范围为- 2869至- 1378 kg CO₂-eq / megg （Mg, 1000 kg）聚乳酸废物。这种基于重构的协调可以应用于不同的领域，以提高LCA研究的一致性和可比性，从而使评估能够反映不同产品系统的实际性能。研究结果强调了LCA假设需要透明度；因此，我们提出建议，以提高未来研究的可靠性和可重复性。

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引用次数: 0

A knowledge graph approach to global nickel mining operations: Patterns and geopolitical insights 全球镍矿开采业务的知识图谱方法：模式和地缘政治见解

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-21 DOI: 10.1016/j.spc.2025.08.012

Zipeng Lin , Peng Wang , Linbin Tang , Francesca Larosa , Yongguang Zhu , Paul Ekins , Wei-Qiang Chen

The global energy transition has intensified demand for critical metals like nickel, placing new emphasis on the need for responsible governance and resilient global mineral supply systems. However, current production patterns and ownership structures pose geopolitical challenges to inclusive and transparent resource governance. This study introduces a knowledge graph-based analytical framework to reassess global nickel mining operations, focusing on three interconnected dimensions: (1) resource endowment, (2) investment influence, and (3) trade centrality. By integrating multi-source, heterogeneous datasets, the framework quantifies and visualizes the geopolitical landscape of global nickel operations. Key insights include: (1) the “nickel triangle”—Indonesia, the Philippines, Papua New Guinea, New Caledonia, and Australia—as a critical hub, underscoring supply concentration and geopolitical risks; (2) developed nations like Switzerland (investment score: 0.69), the UK (0.58), and Canada (0.56) as influential players through overseas investments, reflecting capital-driven resource control strategies; and (3) Indonesia (influence score: 1.0), Brazil (0.95), and Australia (0.79) as dominant actors shaping global primary nickel supply chains. These findings highlight the potential of knowledge graph-based frameworks to dynamically monitor and analyze the geopolitical roles and concerns of nations in mineral resource management. This tool provides policymakers with insights, enabling them to develop strategies that address geopolitical complexities and promote responsible resource governance.

全球能源转型加剧了对镍等关键金属的需求，这使得对负责任的治理和有弹性的全球矿产供应系统的需求成为新的重点。然而，当前的生产模式和所有权结构对包容性和透明度的资源治理构成了地缘政治挑战。本研究引入了一个基于知识图的分析框架来重新评估全球镍矿开采业务，重点关注三个相互关联的维度：(1)资源禀赋，(2)投资影响，(3)贸易中心性。通过整合多源、异构数据集，该框架量化并可视化了全球镍业务的地缘政治格局。主要观点包括：(1)“镍三角”——印度尼西亚、菲律宾、巴布亚新几内亚、新喀里多尼亚和澳大利亚——作为一个重要的中心，突出了供应集中和地缘政治风险；(2)瑞士（投资得分：0.69）、英国（0.58）、加拿大（0.56）等发达国家通过海外投资成为有影响力的参与者，体现了资本驱动的资源控制战略；(3)印度尼西亚（影响力得分：1.0）、巴西（0.95）和澳大利亚（0.79）是塑造全球初级镍供应链的主要参与者。这些发现突出了基于知识图的框架在动态监测和分析各国在矿产资源管理中的地缘政治作用和关切方面的潜力。该工具为政策制定者提供了见解，使他们能够制定应对地缘政治复杂性和促进负责任的资源治理的战略。

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引用次数: 0

Navigating the methanol industry paradox: Environmental gains versus economic realities in green methanol adoption 驾驭甲醇工业悖论：绿色甲醇采用中的环境收益与经济现实

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-17 DOI: 10.1016/j.spc.2025.08.011

Xiu Gu , Chengjiang Li , Fengqi You , Quande Qin , Lu Sun , Wenbo Li , Jing Yang , Liang Wang , Wei Zhang

The global urgency to decarbonize chemical and transportation sectors has positioned green methanol as a promising alternative to conventional fossil-based production. However, the complex interplay between environmental benefits and economic viability remains poorly understood. Here, this study developed an integrated Life Cycle Assessment-System Dynamics framework to evaluate the transition pathways of the methanol industry. Our analysis reveals a striking paradox: while green methanol reduces carbon emissions by 80 % in formaldehyde, production costs remain 46 % higher, which creates significant market resistance. This economic barrier leads to divergent adoption patterns, with transportation applications showing accelerated uptake while chemical production maintains traditional pathways. The model predicts that this bifurcated transition could accelerate industry decarbonization by allowing targeted investment. These findings provide insights for policymakers and industry stakeholders, suggesting that a segmented rather than uniform approach to green methanol adoption might be effective for achieving climate goals.

全球迫切需要使化工和运输部门脱碳，这使得绿色甲醇成为传统化石燃料生产的一种有前途的替代品。然而，人们对环境效益和经济可行性之间复杂的相互作用仍然知之甚少。在这里，本研究开发了一个集成的生命周期评估-系统动力学框架来评估甲醇工业的转型途径。我们的分析揭示了一个惊人的悖论：虽然绿色甲醇在甲醛中减少了80%的碳排放量，但生产成本仍然高出46%，这造成了巨大的市场阻力。这一经济障碍导致不同的采用模式，运输应用显示加速吸收，而化学生产保持传统途径。该模型预测，这种分岔转型可以通过允许有针对性的投资来加速工业脱碳。这些发现为政策制定者和行业利益相关者提供了见解，表明采用分段而非统一的绿色甲醇方法可能对实现气候目标有效。

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引用次数: 0

Carbon emissions accounting and reduction potential analysis of the whole industrial chain for recycling waste photovoltaic modules in China 中国废旧光伏组件回收全产业链碳排放核算及减排潜力分析

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-17 DOI: 10.1016/j.spc.2025.08.010

Tiejun Dai, Biao Chen, Tianzun Wang, Zhongchun Yue, Yayun Kang

As the global photovoltaic (PV) industry expands rapidly, recycling waste PV modules is critical for sustainable development. However, a systematic, whole-chain carbon comparison of different recycling technologies and the dynamic impact of future policies on reduction potential remain underexplored. This study develops an integrated Material Flow Analysis (MFA) and Life Cycle Assessment (LCA) framework to perform a detailed carbon accounting for mechanical, chemical, and thermal recycling pathways in China. Subsequently, we use dynamic scenario simulation to evaluate the nation's carbon reduction potential under various policies. Results show the mechanical pathway has the lowest whole-chain carbon intensity (49.1 t CO2/MW), significantly lower than the chemical (79.4 t CO2/MW) and thermal (82.2 t CO2/MW) pathways. The analysis of emission sources reveals that the material recovery stage is the most critical hotspot for all pathways, contributing between 47.9 % and 66.8 % of the total carbon footprint. Scenario simulations predict that China's waste PV recycling system could achieve a cumulative carbon reduction of up to 5.35 billion tonnes by 2060.We conclude that the low-carbon transition of PV recycling cannot rely on a single technology. Instead, it requires a systemic governance framework that integrates a phased technology strategy with a differentiated industrial layout based on regional resource endowments.

随着全球光伏产业的快速发展，废旧光伏组件的回收利用对可持续发展至关重要。然而，对不同回收技术的系统、全链碳比较以及未来政策对减排潜力的动态影响仍未得到充分探讨。本研究开发了一个综合的物料流分析（MFA）和生命周期评估（LCA）框架，对中国的机械、化学和热回收途径进行了详细的碳核算。在此基础上，运用动态情景模拟的方法对不同政策下的中国碳减排潜力进行了评估。结果表明，机械途径的全链碳强度最低（49.1 t CO2/MW），显著低于化学途径（79.4 t CO2/MW）和热途径（82.2 t CO2/MW）。排放源分析表明，材料回收阶段是所有途径中最关键的热点，占总碳足迹的47.9% ~ 66.8%。情景模拟预测，到2060年，中国的废弃光伏回收系统可累计减少高达53.5亿吨的碳排放。我们得出结论，光伏回收的低碳转型不能依赖于单一的技术。相反，它需要一个系统的治理框架，将阶段性技术战略与基于区域资源禀赋的差异化产业布局相结合。

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引用次数: 0

Preparation of sludge derived fuels for co-incineration in waste incinerators: Industrial tests and life cycle assessment 污泥衍生燃料在垃圾焚化炉中共焚烧的制备：工业试验和生命周期评估

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-11 DOI: 10.1016/j.spc.2025.08.004

Yanfei Lin , Hanqiao Liu , Guoxia Wei , Tong Li , Qianlong Han , Zilu Liu , Xinrui Su , Yifan Chen

The co-incineration of sludge using the surplus processing capacity of waste incineration plants provides a viable strategy for sludge treatment in China. An innovative project of mixing sludge with straw for preparing sludge derived fuel and then sending it to waste incinerators for co-incineration was developed in this paper. Additionally, the environmental and economic performances of new sludge derived fuel co-incineration system with flue gas/solar aided drying were evaluated through life cycle assessment and life cycle costing method. The pilot-scale drying results showed that the optimum conditions for flue gas combined solar drying of sludge are a straw/sludge ratio of 15 %, a sludge layer thickness of 6 cm, and a flipping interval of 60 min. The moisture content of the sludge cake was reduced from 76.8 % to 22.0 % after 7.5 h of drying under the optimum conditions. The industrial-scale co-incineration tests found that the recommended addition rates of sludge derived fuel were 1.5 and 2.0 t/h in a 300 t/d fluidized bed incinerator and 400 t/d grate furnace incinerator, respectively. Life cycle assessment results demonstrated that, compared to sludge and waste mono-incineration, the innovative project involving co-incineration with sludge derived fuel in grate furnace incinerator after flue gas/solar drying gained environmental benefits in 8 categories, exhibiting the best environmental sustainability, while co-incineration after steam drying showed the highest economic benefit with 18.01 USD/t. These results provide references for sustainable co-treatment approach of municipal solid waste and sludge in the future.

利用垃圾焚烧厂的剩余处理能力进行污泥共焚烧，为污泥处理提供了一种可行的策略。提出了将污泥与秸秆混合制备污泥衍生燃料后送至垃圾焚烧炉共焚烧的创新方案。此外，通过生命周期评价和生命周期成本法对新型污泥衍生燃料烟气/太阳能辅助干燥共烧系统的环境经济性能进行了评价。中试干燥结果表明，污泥烟气联合太阳能干燥的最佳条件为秸秆/污泥比为15%，污泥层厚度为6 cm，翻转时间为60 min。在最佳干燥条件下，干燥7.5 h后，污泥饼的含水率由76.8%降至22.0%。工业规模共焚烧试验发现，在300 t/d的流化床焚烧炉和400 t/d的篦炉焚烧炉中，污泥衍生燃料的推荐添加率分别为1.5和2.0 t/h。生命周期评价结果表明，与污泥、垃圾单一焚烧相比，烟气/太阳能干燥后与污泥衍生燃料在篦炉焚烧炉内共焚烧的创新项目获得了8个类别的环境效益，表现出最佳的环境可持续性，而蒸汽干燥后共焚烧的经济效益最高，为18.01美元/吨。研究结果可为今后城市生活垃圾与污泥的可持续共处理提供参考。

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引用次数: 0

Environment-friendly diet and policy priorities to promote sustainable healthy aging across China 环境友好型饮食和政策重点促进中国可持续健康老龄化

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-10 DOI: 10.1016/j.spc.2025.08.008

Bingqi Ye , Jialu Yang , Min Xia , Yan Liu

Rapid population aging and growing environmental pressures pose dual challenges to sustainable development, especially in developing countries. The region-specific reference diet (RRD), a culturally appropriate variant of EAT-Lancet Planetary Health Diet, has been recently proposed for China, but its role in promoting sustainable healthy aging remains unclear. We hypothesize that combining RRD with social determinants can enhance sustainable healthy aging and reduce health disparities. Using 2020 food consumption data from the National Bureau of Statistics of China (NBSC), we estimated provincial RRD adherence and its association with healthy life expectancy (HLE) and Green Development Index (GDI). Based on the data from NBSC, the social return on investment identified five core social determinants, pension coverage, telephone subscriptions, senior care workforce, physician access, and internet use, that significantly reduced the unexplained variance in sustainable healthy aging after adjusting for RRD. Scenario-based simulations were performed by comparing four conditions: (1) 2020 status, (2) 2030 projection, (3) RRD adoption alone, and (4) RRD combined with synergistic social determinants. The integrated strategy based on RRD yielded greater improvements in HLE and GDI compared to the 2020 status and 2030 projection, while also significantly reduced regional and gender disparities compared to all other three conditions. These findings underscore the limitations of dietary interventions in isolation and highlight the potential of a multi-sectoral strategy for advancing equal sustainable healthy aging. Future studies are warranted to assess the impact of RRD-based integrated strategy in sustainable healthy aging in real world, and validate the findings in other countries.

人口迅速老龄化和日益增长的环境压力对可持续发展，特别是发展中国家的可持续发展构成双重挑战。区域特定参考饮食（RRD）是EAT-Lancet行星健康饮食的一种文化上合适的变体，最近已被提出用于中国，但其在促进可持续健康老龄化方面的作用尚不清楚。我们假设将RRD与社会决定因素相结合可以促进可持续健康老龄化并减少健康差距。利用中国国家统计局（NBSC）的2020年食品消费数据，我们估计了各省RRD依从性及其与健康预期寿命（HLE）和绿色发展指数（GDI）的关系。基于NBSC的数据，社会投资回报确定了五个核心社会决定因素，养老金覆盖率，电话用户，高级护理人员，医生获取和互联网使用，在调整RRD后显着减少了可持续健康老龄化的无法解释的方差。通过比较四种情况(1)2020年状况、(2)2030年预测、(3)单独采用RRD以及(4)RRD与协同社会决定因素相结合，进行了基于场景的模拟。与2020年的现状和2030年的预测相比，基于RRD的综合战略在HLE和GDI方面取得了更大的改善，同时与所有其他三种情况相比，也显著减少了区域和性别差距。这些发现强调了单独饮食干预的局限性，并强调了多部门战略在促进平等、可持续的健康老龄化方面的潜力。未来的研究需要评估基于rrd的综合策略在现实世界中对可持续健康老龄化的影响，并验证其他国家的研究结果。

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引用次数: 0

Can hydrogen-powered air travel grow within the planetary limits? 氢动力航空旅行能在地球极限内发展吗？

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-10 DOI: 10.1016/j.spc.2025.08.009

Yat Yin Lai , Alexis Laurent

Air travel demand is rising rapidly and the aviation sector is relying on technology to decouple environmental impacts from its growth. Using Sweden as a case study, we assessed the absolute environmental sustainability of medium-distance air travel in 2050, positioning the aviation sector's environmental impacts in relation to the planetary limits. We employed a novel framework that integrates prospective life cycle assessment and absolute environmental sustainability assessment methodologies. Our findings suggest that projected medium-distance air travel powered by e-kerosene or liquid hydrogen could have life cycle environmental impacts that overshoot global climate change and biodiversity loss thresholds by several orders of magnitude. Based on our case results for Sweden, for aviation to develop within the planetary limits, we recommend cross-sector collaboration to address environmental impacts from fossil-free energy supplies and the establishment of integrated targets that incorporate broader environmental issues. Given the unlikelihood of decoupling growth from environmental impacts, policymakers and the aviation sector should consider concurrently supporting technological development and implementing measures to manage air travel demand.

航空旅行需求正在迅速增长，航空业正依靠技术将其增长对环境的影响分离开来。以瑞典为例，我们评估了2050年中距离航空旅行的绝对环境可持续性，并根据地球极限对航空业的环境影响进行了定位。我们采用了一个新的框架，整合了前瞻性生命周期评估和绝对环境可持续性评估方法。我们的研究结果表明，预计由电子煤油或液氢驱动的中距离航空旅行可能会对生命周期环境产生影响，超过全球气候变化和生物多样性损失阈值的几个数量级。根据瑞典的案例结果，为了使航空业在地球限制范围内发展，我们建议开展跨部门合作，以解决无化石能源供应对环境的影响，并制定包含更广泛环境问题的综合目标。鉴于经济增长不可能与环境影响脱钩，政策制定者和航空业应同时考虑支持技术发展和实施管理航空旅行需求的措施。

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引用次数: 0

Stakeholder-driven circular economy on marginal lands: Governance and sustainability trade-offs in biomass value chains 边际土地上利益相关者驱动的循环经济：生物质价值链中的治理和可持续性权衡

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-10 DOI: 10.1016/j.spc.2025.08.005

Thi Huyen Trang Dam, Philipp Grundmann, Richard Orozco, Naser Reyhani

Circular economy (CE) models have potential to advance sustainability in biomass-based value chains, but implementation on marginal lands is constrained by governance fragmentation, limited financing, and diverging stakeholder priorities. Using a mixed-methods approach—including stakeholder surveys, thematic coding, and concept mapping—this study examines governance expectations across seven international case contexts in Europe, South Africa, and Argentina. The results reveal pronounced differences across groups: businesses and investors prioritize infrastructure, financing mechanisms, and market stability; farmers emphasize land-use flexibility, compensation schemes, and long-term support; policymakers and environmental and conservation organizations focus on regulatory coherence, biodiversity protection, and inclusive governance; while research and innovation actors call for strengthened coordination, knowledge exchange, and locally adapted monitoring systems. In Global South cases, social equity issues—especially related to land access, participation, and benefit sharing—emerged as critical concerns. Across groups and countries, shared expectations for biobased products centered on climate and biodiversity benefits, affordability, traceability, and alignment with local needs and CE principles. Concept mapping illustrates interlinkages between stakeholder-defined priorities, governance gaps, and technical constraints, offering insight into underlying sustainability trade-offs. The findings highlight stakeholder governance as a central enabler of CE transitions, emphasizing the need for multi-level, participatory coordination, stable financial support, and cross-sectoral alignment. These insights contribute to context-sensitive strategies for circular bioeconomy development on marginal lands and support progress toward SDG 12.5, while reinforcing synergies with SDGs 13 and 15 on climate and biodiversity goals.

循环经济（CE）模式有潜力促进以生物质为基础的价值链的可持续性，但在边际土地上的实施受到治理碎片化、融资有限和利益相关者优先事项分歧的限制。本研究采用混合方法——包括利益相关者调查、主题编码和概念映射——考察了欧洲、南非和阿根廷七个国际案例背景下的治理期望。结果显示，不同群体之间存在显著差异：企业和投资者优先考虑基础设施、融资机制和市场稳定性；农民强调土地使用灵活性、补偿方案和长期支持；政策制定者和环境保护组织关注监管一致性、生物多样性保护和包容性治理；而研究和创新行为体则呼吁加强协调、知识交流和适应当地情况的监测系统。在全球南方国家的案例中，社会公平问题——特别是与土地获取、参与和利益分享相关的问题——成为了关键问题。各个群体和国家对生物基产品的共同期望集中在气候和生物多样性效益、可负担性、可追溯性以及符合当地需求和环保原则。概念映射说明了利益相关者定义的优先级、治理差距和技术限制之间的相互联系，提供了对潜在可持续性权衡的见解。研究结果强调，利益相关者治理是环境行政转型的核心推动因素，强调了多层次、参与性协调、稳定的财政支持和跨部门协调的必要性。这些见解有助于制定边际土地循环生物经济发展的情境敏感战略，支持实现可持续发展目标12.5，同时加强与可持续发展目标13和15有关气候和生物多样性目标的协同作用。

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