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From global to domestic scales: Do changes in industrial divisions burden sub-national emission reduction? 从全球到国内:产业分工的变化会给地方减排带来负担吗?
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2025-12-03 DOI: 10.1016/j.eiar.2025.108280
Xinxin Yu , Mingdong Jiang , Guanyu Zhong
The complex international situation threatens global trade, emphasizing the role of domestic industrial divisions. However, whether the economic linkage changes brought by thriving domestic divisions burden emission reductions hasn't received enough attention, though it's vital for carbon neutrality. To fill this gap, we developed a novel analytical framework by constructing a Global-Chinese-provincial Nested Multi-regional Input-Output (NMRIO) table, enabling comprehensive analysis across global, regional, and sub-national scales. We attempted to determine whether domestic divisions would impose a greater burden on sub-national emission reduction and how they function compared to participation in global divisions. We found that provincial participation in domestic divisions showed an upward trend during the study periods. However, compared with global divisions, domestic industrial divisions demonstrate a stronger effect increasing carbon emissions. Such emission growth is primarily driven by production scale expansion and carbonization of sub-sector structures within aggregate industries. Technology-driven reduction in carbon emission intensity is critical to mitigating the rise in emissions under domestic divisions, particularly between provinces in western and central regions and eastern regions. Global regional analysis shows that divisions with EU and North American countries will increase the carbon emissions, while those with the One Belt and One Road have no significant emission effects. Moreover, in the global divisions, a higher proportion of vertical specialization helps mitigate carbon emissions in provinces, while in the domestic divisions, a more downstream position can more significantly alleviate the carbon emissions driven by divisions.
复杂的国际形势威胁到全球贸易,强调了国内产业分工的作用。然而,国内分化的蓬勃发展所带来的经济联动变化是否会给减排带来负担却没有得到足够的重视,尽管这对碳中和至关重要。为了填补这一空白,我们开发了一个新的分析框架,通过构建全球-中国省嵌套多区域投入产出(NMRIO)表,实现了全球、区域和次国家尺度的综合分析。我们试图确定国内分工是否会给地方减排带来更大的负担,以及与参与全球分工相比,国内分工是如何发挥作用的。我们发现,在研究期间,各省对国内区划的参与呈上升趋势。但与全球分工相比,国内产业分工对碳排放的增加作用更强。这种排放增长的主要驱动因素是生产规模的扩大和总体产业内部分部门结构的碳化。技术驱动的碳排放强度降低对于缓解国内区域内,特别是中西部省份与东部地区之间的排放上升至关重要。全球区域分析表明,与欧盟和北美国家的分裂会增加碳排放,而与一带一路国家的分裂没有显著的排放效应。此外,在全球分工中,垂直专业化比例越高,有助于缓解各省的碳排放,而在国内分工中,位置越下游,可以更显著地缓解分工驱动的碳排放。
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引用次数: 0
Rethinking aluminum metabolism under China's new “old-for-new” policy: characteristics and environmental implications 重新思考中国“以旧换新”政策下的铝代谢:特征和环境影响
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2026-01-09 DOI: 10.1016/j.eiar.2026.108332
Wei Liu , Xianlai Zeng
Aluminum is a non-ferrous metal leading in consumption, energy, and carbon intensity. China's first “old-for-new” policy, initiated in 2009, accelerated the production, consumption, and obsolescence of aluminum-containing products. In 2024, the Chinese government launched a larger-scale version of the “old-for-new” program. In this new context, this study integrated material flow analysis and field survey to measure China's aluminum metabolism from 2009 to 2050. The new findings reveal that policy-driven interventions could amplify recycling potential by 83.3 % (appliances) and 50 % (vehicles) compared to the baseline, with environmental gains closely linked to the combinations of policy intensity. Consumer participation rates and recycling technology efficiency emerge as critical bottlenecks—synergistic optimization yields multiplier effects. Uncertainty analysis reveals 28 % (appliance) and 26–50 % (vehicles) variability in emission reduction and energy saving forecasts, while air conditioners and new energy vehicles drive 49 % of recycled aluminum growth in 2050. This study identified the key drivers that influence recycling potential and its environmental impacts, providing crucial support for managerial decision-making and a robust theoretical underpinning for optimizing aluminum management and advancing circular economy policies.
铝是一种在消费、能源和碳强度方面领先的有色金属。2009年,中国首次实施“以旧换新”政策,加速了含铝产品的生产、消费和淘汰。2024年,中国政府启动了规模更大的“以旧换新”计划。在此背景下,本研究采用物质流分析和实地调查相结合的方法,对2009 - 2050年中国的铝代谢进行了测量。新的研究结果表明,与基线相比,政策驱动的干预措施可以将回收潜力(家电)和(车辆)分别扩大83.3%和50%,环境收益与政策强度的组合密切相关。消费者参与率和回收技术效率成为关键瓶颈——协同优化产生乘数效应。不确定性分析显示,在减排和节能预测方面,28%(家电)和26% - 50%(汽车)的可变性,而到2050年,空调和新能源汽车将推动49%的再生铝增长。本研究确定了影响回收潜力及其环境影响的关键驱动因素,为管理决策提供了重要支持,并为优化铝管理和推进循环经济政策提供了坚实的理论基础。
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引用次数: 0
Sustainable development of photovoltaic industry in China: An innovative multi-driver model 中国光伏产业可持续发展:一个创新的多驱动模式
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2025-12-22 DOI: 10.1016/j.eiar.2025.108314
Shijia Chong , Jing Wu , I-Shin Chang
To cope with the surging global energy demands and escalating environmental challenges, the sustainable development of the photovoltaic (PV) industry has become a pivotal solution for balancing energy security and ecological conservation. This study fills a critical gap in assessing China's PV industry sustainability by developing a context-adaptive multi-driver model, which systematically integrates economic, environmental, and resource dimensions and optimizes for China's regional heterogeneity and industrial constraints. The model incorporates core drivers (energy transition imperatives, technological advancements, economic incentives) and limiting factors (policy uncertainties, market competition pressures, land resource constraints) in the development of the PV industry to elucidate the multi-dimensional benefits, applying it to a provincial empirical analysis of sustainable potential. Findings reveal China's PV energy exhibits significant regional disparities, with economic costs ranging from 0.56 to 1.27CNY/kWh. A 1 kW PV plant generates annual environmental benefits of 37.24 to 655.19CNY, with developed regions demonstrating distinct carbon mitigation advantages. Land use benefits generally decline from southeast to northwest China. Employing the multi-driver evaluation model, the sustainability index (SI) of China's PV industry ranges from 0.09 to 0.83, with higher values in southeastern coastal regions compared to western inland areas. Thirty provinces are classified into three zones: Advantage Spearheading Zone, Potential Unleashing Zone, and Resource Unactivated Zone. Zone-specific strategies are proposed to promote the high-quality and sustainable development of the PV industry.
面对日益增长的全球能源需求和日益严峻的环境挑战,光伏产业的可持续发展已成为平衡能源安全和生态保护的关键解决方案。本研究通过构建一个环境自适应的多驱动模型,系统地整合了经济、环境和资源维度,并针对中国的区域异质性和产业约束进行了优化,填补了评估中国光伏产业可持续性的关键空白。该模型结合光伏产业发展的核心驱动因素(能源转型要求、技术进步、经济激励)和限制因素(政策不确定性、市场竞争压力、土地资源约束),阐明了光伏产业发展的多维效益,并将其应用于省级可持续潜力实证分析。研究结果显示,中国光伏能源存在显著的地区差异,经济成本在0.56至1.27元/千瓦时之间。1 kW光伏电站年环境效益为37.24 ~ 655.19元人民币,发达地区碳减排优势明显。土地利用效益总体上由东南向西北递减。采用多驱动因素评价模型,中国光伏产业可持续发展指数(SI)在0.09 ~ 0.83之间,东南沿海地区高于西部内陆地区。30个省份被划分为优势先行区、潜力释放区和资源未激活区。提出了促进光伏产业高质量可持续发展的区域战略。
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引用次数: 0
A combined territorial life cycle assessment and ecosystem services valuation to analyse the environmental performance of coastal planning scenarios: Insights from a case study in southern France 结合领土生命周期评估和生态系统服务评估来分析沿海规划情景的环境绩效:来自法国南部案例研究的见解
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2025-11-07 DOI: 10.1016/j.eiar.2025.108256
Katia Philippot , Hélène Rey-Valette , Jérôme Lavoie , Cécile Bulle , Jean Michel Salles , Rutger de Wit , Valérie Derolez , Nicole Lautrédou-Audouy , Carmen Cordonnier , Eléonore Loiseau
A territory, which is a geographical area qualified by a legal affiliation or by a natural or cultural feature, presents an appropriate scale for establishing responsibilities and initiating sustainable development actions. At the same time, globalization implies constant interaction of territories with the rest of the world. The management of territorial projects therefore requires a revised set of environmental assessment tools that consider local and global issues with a multi-scale perspective. The environmental benefits of land use policies can, however, remain hidden behind global approaches such as life cycle assessment (LCA), which are generally product-oriented and tend to ignore ecosystem services (ES). This paper aims to propose new decision-making tools for land use planning based on the joint use of ecosystem services assessment (ESA) and territorial Life Cycle Assessment (T-LCA). Within the T-LCA framework, two main types of indicators were quantified. On the one hand, the services provided by land planning scenarios were computed by the ESA by considering provisioning, cultural and regulation ES. On the other hand, environmental impacts were characterized using the Impact World+ Life Cycle Impacts Assessment (LCIA) method.
Two contrasting scenarios and a business as usual scenario (BAU) were studied and compared as a proof of concept. Scenario 1 focused on productive economy by maintaining and diversifying the shellfish farming sector, which is a strong component of the area's social identity. Scenario 2 favoured the development of tourism. Overall, the results indicated that environmental damages varied only slightly between scenarios, with tourism activities (i.e., transport and accommodation) emerging as the primary contributors. In contrast, there were very different profiles in terms of socio-economic benefits depending on the scenario. Provisioning ES were very high in scenario 1, while scenario 2 led to a clear increase in cultural ES. This research emphasizes the importance of developing integrated assessment approaches when creating local planning policies, in order to identify potential trade-offs between environmental impacts and benefits, and local and global issues.
领土是具有法律从属关系或自然或文化特征的地理区域,为确立责任和发起可持续发展行动提供了适当的尺度。与此同时,全球化意味着领土与世界其他地区的不断互动。因此,领土项目的管理需要一套经过修订的环境评估工具,以多尺度的视角考虑地方和全球问题。然而,土地利用政策的环境效益可能仍然隐藏在生命周期评估(LCA)等全球方法背后,这些方法通常以产品为导向,往往忽视生态系统服务(ES)。本文旨在提出基于生态系统服务评价(ESA)和领土生命周期评价(T-LCA)联合使用的土地利用规划决策新工具。在T-LCA框架内,对两类主要指标进行了量化。一方面,土地规划方案所提供的服务是由ESA通过考虑供给、文化和监管的ES来计算的。另一方面,采用影响世界+生命周期影响评价(LCIA)方法对环境影响进行表征。作为概念验证,研究并比较了两个对比场景和一个业务照常场景(BAU)。情景1侧重于生产性经济,通过维持和多样化贝类养殖部门,这是该地区社会身份的重要组成部分。情景2有利于旅游业的发展。总体而言,结果表明,环境损害在不同情景之间的差异很小,旅游活动(即交通和住宿)成为主要贡献者。相反,就社会经济利益而言,根据不同的情况有非常不同的情况。在场景1中,供应ES非常高,而场景2导致文化ES明显增加。这项研究强调了在制定地方规划政策时发展综合评估方法的重要性,以便确定环境影响和利益以及地方和全球问题之间的潜在权衡。
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引用次数: 0
A decision-making model for more sustainable municipal solid waste management 更可持续的城市固体废物管理决策模型
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2025-11-10 DOI: 10.1016/j.eiar.2025.108258
Arno P. Clasen, Feni Agostinho, Cecília M.V.B. Almeida, Biagio F. Giannetti
The increasing volume of municipal solid waste (MSW) globally requires sustainable management strategies, especially in resource-constrained regions where landfilling remains predominant due to economic limitations. This study proposes a decision-support model focused on sustainability to guide the choice of technological routes for MSW management, comparing a conventional sanitary landfill with an integrated and innovative biorefinery (2IB), positioned at the top of the waste management hierarchy. The evaluation includes a diagnosis phase, which addressed only the treatment plants, and a simulation phase, which incorporated transportation distances and variations in MSW composition. Both phases were based on the five-sector sustainability model (5SEnSU), here applied for the first time to MSW management systems. Results focused on treatment showed that 2IB performs approximately 15 times better in terms of the sustainability synthetic indicator of the system (SSIS: 0.53) compared to sanitary landfill (SSIS: 8.12). Results from simulations revealed that 2IB remains the more sustainable option for additional transport distances up to 11,000 km/day and for any combination of organic and inorganic waste fraction. The study concludes that the adoption of 2IB should be prioritized in MSW public policies, particularly through intermunicipal consortia, which can facilitate implementation. This study contributes scientifically by assessing, for the first time using the 5SEnSU, the sustainability of an innovative biorefinery for MSW. Practically, it delivers a replicable and adaptable model to help local governments make informed, sustainability-based decisions. It further offers clear operational threshold, on transport distance and waste composition, that can be readily applied in real-world planning and policy.
全球城市固体废物(MSW)的数量不断增加,需要可持续的管理战略,特别是在资源有限的地区,由于经济限制,垃圾填埋仍然占主导地位。本研究提出了一个以可持续性为重点的决策支持模型,以指导城市生活垃圾管理技术路线的选择,并将传统的卫生填埋场与位于废物管理层级顶端的综合创新生物精炼厂(2IB)进行了比较。评估包括诊断阶段(仅针对处理厂)和模拟阶段(考虑运输距离和城市生活垃圾组成的变化)。这两个阶段均以五界别可持续发展模式为基础,并首次应用于都市固体废物管理系统。处理方面的结果表明,与卫生填埋场(SSIS: 8.12)相比,2IB在系统可持续性综合指标(SSIS: 0.53)方面的表现约为15倍。模拟结果显示,对于每天11,000公里的额外运输距离以及任何有机和无机废物部分的组合,2IB仍然是更可持续的选择。该研究的结论是,在城市固体废物公共政策中应优先采用2IB,特别是通过城市间的联盟,这可以促进实施。本研究通过首次使用5SEnSU评估创新型城市生活垃圾生物炼制的可持续性,为科学做出了贡献。实际上,它提供了一个可复制和适应性强的模式,帮助地方政府做出明智的、基于可持续性的决策。它还提供了关于运输距离和废物组成的明确操作门槛,可以很容易地应用于实际的规划和政策。
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引用次数: 0
Innovative safety framework and direct load–settlement method to optimize vertical subgrade modulus in sustainable mat foundations 创新安全框架和直接荷载沉降法优化可持续垫基垂直路基模量
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2025-11-25 DOI: 10.1016/j.eiar.2025.108191
Antonio J. Sánchez-Garrido , José F. Moreno-Serrano , Ignacio J. Navarro , Víctor Yepes
This work presents a rigorously formulated methodology for directly estimating the vertical subgrade modulus (Ks) in slab foundations, overcoming key deficiencies of conventional indirect and semi-direct approaches. The model integrates elastic half-space theory with multilayer settlement analysis and oedometer-based consolidation mechanics, explicitly incorporating depth of influence and load compensation effects—parameters typically excluded from standard practice. The proposed formulation yields a Ks value of 5.30 MN/m3, closely matching the harmonic mean of established upper (17.82 MN/m3) and lower (2.91 MN/m3) bounds, thereby producing a modulus consistent with elastic energy principles and mechanistically grounded, suitable for advanced soil–structure interaction modeling. A new, application-specific safety coefficient for Ks is introduced, offering a calibrated metric for reliability-based foundation design under spatially variable subsurface conditions. The study implements a life-cycle sustainability assessment across three reinforced concrete slab foundation alternatives, utilizing a hybrid neutrosophic analytic hierarchy process (NAHP-G) in conjunction with the ELECTRE IS multi-criteria decision method. This framework enables integrated evaluation across structural, environmental, and socio-economic dimensions. Results indicate a 2.5-fold enhancement in the social safety index and a 50 % relative improvement in sustainability performance compared with baseline methodologies. The outcomes delineate a unified analytical and decision-making framework for subgrade characterization and foundation optimization, advancing the state of practice in geotechnical design and sustainability integration.
这项工作提出了一种严格制定的方法,用于直接估计平板基础中的垂直路基模量(Ks),克服了传统间接和半直接方法的主要缺陷。该模型将弹性半空间理论与多层沉降分析和基于深度计的固结力学相结合,明确地纳入了影响深度和荷载补偿效应——这些参数通常不包括在标准实践中。该公式的Ks值为5.30 MN/m3,与建立的上限(17.82 MN/m3)和下限(2.91 MN/m3)的调和平均值非常接近,从而产生符合弹性能原理且力学接地的模量,适合高级土-结构相互作用建模。为Ks引入了一种新的、特定于应用的安全系数,为空间可变地下条件下基于可靠性的基础设计提供了校准指标。该研究利用混合中性层次分析法(NAHP-G)和ELECTRE IS多标准决策方法,对三种钢筋混凝土板基础方案进行了生命周期可持续性评估。该框架能够在结构、环境和社会经济方面进行综合评价。结果表明,与基线方法相比,社会安全指数提高了2.5倍,可持续性绩效相对提高了50%。研究结果为路基表征和基础优化提供了统一的分析和决策框架,推动了岩土工程设计和可持续性整合的实践状态。
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引用次数: 0
Integrating land degradation states and trends to identify priority areas for ecological restoration in China's drylands 结合土地退化状况和趋势,确定中国旱地生态恢复优先区域
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2025-11-24 DOI: 10.1016/j.eiar.2025.108269
Yi Han , Wenwu Zhao , Paulo Pereira
Land degradation is a global ecological and environmental issue to which the drylands with vulnerable socio-ecological systems are particularly sensitive. Ecological restoration is regarded as a vital approach to halt, curb or reverse land degradation. However, the lack of accurate information on land degradation dynamics poses a significant barrier to developing effective restoration strategies. Here, we selected fourteen typical land degradation processes in China's drylands, employed a generalised additive model to identify degradation thresholds and classify degradation states, and analysed degradation trends using the Theil-Sen slope statistic and Mann-Kendall test. We then applied the convergence of evidence method to conduct a comprehensive, multidimensional assessment coupling degradation states and trends, ultimately identifying priority areas for ecological restoration. The results showed that aridification, loss of soil organic carbon, and soil alkalisation are the most widespread forms of land degradation facing China's drylands. 70.33 % of the area is affected by 1 to 7 types of land degradation (mildly degraded state), 25.63 % is affected by 8 to 14 types (severely degraded state), and 4.04 % shows no signs of degradation (non-degraded state). While land degradation across all three states generally exhibits a stable trend, mildly degraded areas showed signs of improvement, whereas severely degraded areas remain at risk of further degradation. Based on the states and trends of land degradation, China's drylands can be categorised into restoration-priority areas (6.79 %), conservation-priority areas (11.74 %), and management-priority areas (81.47 %), each with distinct focus and intervention needs. This study can help decision-makers understand the dynamics of land degradation and develop priority strategies for ecological restoration.
土地退化是一个全球性的生态环境问题,具有脆弱社会生态系统的旱地对其尤为敏感。生态恢复被认为是停止、抑制或逆转土地退化的重要途径。然而,缺乏关于土地退化动态的准确信息对制定有效的恢复战略构成了重大障碍。本文选取了中国旱地14个典型土地退化过程,采用广义加性模型识别退化阈值和退化状态,并利用Theil-Sen斜率统计量和Mann-Kendall检验分析退化趋势。应用证据收敛法对退化状态和趋势进行了综合、多维度评价,最终确定了生态恢复的优先区域。结果表明,干旱化、土壤有机碳流失和土壤碱化是中国旱地面临的最普遍的土地退化形式。70.33%的区域存在1 ~ 7种类型的土地退化(轻度退化),25.63%的区域存在8 ~ 14种类型的土地退化(严重退化),4.04%的区域没有退化迹象(非退化)。虽然这三个国家的土地退化总体上呈现稳定趋势,但轻度退化地区出现了改善迹象,而严重退化地区仍有进一步退化的风险。根据土地退化的现状和趋势,中国旱地可分为恢复优先区(6.79%)、保护优先区(11.74%)和管理优先区(81.47%),每个区域都有不同的重点和干预需求。该研究可以帮助决策者了解土地退化的动态,并制定生态恢复的优先策略。
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引用次数: 0
Centralized environmental management: Strengthening enforcement at jurisdictional boundaries 环境集中管理:加强管辖范围执法
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2026-01-08 DOI: 10.1016/j.eiar.2026.108328
Zifu Liu , Xiaoxiao Shen , Fan Xia , Bing Zhang
Decentralized environmental management often leads to local protectionism and inconsistent policy enforcement, resulting in strategic regulatory behavior and a failure to address interjurisdictional externalities. This study examines whether centralizing environmental governance helps mitigate these problems, using a vertical management system reform of environmental governance agencies below the province level in Jiangsu Province, China. We analyze the reform's impact by comparing changes in environmental enforcement at jurisdictional borders with those in inland areas. Leveraging novel, geocoded firm-level panel data on environmental inspections, we find that the centralization reform has strengthened enforcement at jurisdictional borders, increasing environmental warnings and penalties on border firms by 10.5 % ∼ 13.4 % relative to inland firms. Our findings suggest that centralizing environmental management improves environmental outcomes by curbing local governments' free-riding behavior and strengthening enforcement efforts.
分散的环境管理往往导致地方保护主义和政策执行不一致,导致战略性管制行为和未能处理管辖权间的外部因素。本研究以江苏省省级以下环境治理机构的纵向管理体制改革为研究对象,探讨了集中化环境治理是否有助于缓解这些问题。我们通过比较司法管辖区边界和内陆地区环境执法的变化来分析改革的影响。利用新颖的、地理编码的企业层面环境检查面板数据,我们发现集中化改革加强了司法管辖区边界的执法,相对于内陆企业,对边境企业的环境警告和处罚增加了10.5% ~ 13.4%。我们的研究结果表明,环境集中管理通过抑制地方政府搭便车行为和加强执法力度来改善环境结果。
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引用次数: 0
Assessment of the impact of establishing national key ecological function zones on land resource allocation 建立国家重点生态功能区对土地资源配置的影响评价
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2026-01-10 DOI: 10.1016/j.eiar.2026.108335
Nan Deng , Yaobin Liu , Shuoshuo Li , Yaxin Tan , Guoen Wei
Effective utilization of land resources is a global priority and a critical pathway toward achieving the Sustainable Development Goals (SDGs). As the world's most populous developing country, China faces severe challenges from the encroachment of ecological land driven by rapid urbanization and industrialization. The establishment of National Key Ecological Function Zones (NKEFZs) plays a pivotal role in optimizing land resource allocation (LRA) as a spatial regulatory instrument. Drawing on panel data from 1998 Chinese counties spanning 2007 to 2022, this study examines the impact of NKEFZs on LRA, with particular attention to incremental control and stock optimization. The findings show that establishing NKEFZs effectively improves LRA. It increases land-increment control (LIC) by 0.56% and enhances land-stock optimization (LSO) by 5.37%. These effects operate mainly through adjustments in local governments' land-supply strategies and firms' land-use demand. The policy effects are especially pronounced in central and western regions, economically less active areas, regions with stronger regulatory enforcement, and zones designated for water and soil conservation. Moreover, we find that government growth competition weakens the policy's impact on LIC, while a higher level of marketization enhances its effectiveness. Overall, the study offers policy insights for promoting more intensive and efficient land use within NKEFZs and for better coordinating environmental protection with economic development.
有效利用土地资源是全球优先事项,也是实现可持续发展目标的关键途径。作为世界上人口最多的发展中国家,中国面临着快速城市化和工业化带来的生态用地侵蚀的严峻挑战。国家重点生态功能区的建立作为一种空间调控手段,在优化土地资源配置中发挥着关键作用。利用2007 - 2022年1998年中国县域的面板数据,本研究考察了nkefz对LRA的影响,特别关注增量控制和存量优化。结果表明,nkefz的建立有效地改善了LRA。提高土地增量控制(LIC) 0.56%,提高土地存量优化(LSO) 5.37%。这些影响主要通过调整地方政府的土地供应策略和企业的土地使用需求来发挥作用。政策效果在中西部地区、经济不活跃地区、监管力度较强地区和水土保持定点区尤为明显。此外,我们发现政府增长竞争削弱了政策对低成本投资的影响,而较高的市场化水平则增强了政策对低成本投资的有效性。总体而言,该研究为促进nkefz内更集约和有效的土地利用以及更好地协调环境保护与经济发展提供了政策见解。
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引用次数: 0
Nudge waste out: Understanding the impacts of green nudges on on-site construction waste management based on metaverse serious game 轻推废物:了解绿色轻推对现场建筑废物管理的影响
IF 11.2 1区 社会学 Q1 ENVIRONMENTAL STUDIES Pub Date : 2026-04-01 Epub Date: 2025-12-04 DOI: 10.1016/j.eiar.2025.108293
Yaoliang Zhuang , Weisheng Lu , Ziyu Peng , Zhikang Bao , Liang Yuan , Yichen Yin
Nudge theory proposes that subtle changes in choice presentation can have a profound influence on people's decisions and behaviors. Grounded in this theory, researchers and practitioners started to design and implement ‘green nudges’ that can alter workers' behavior in conducting on-site construction waste management (CWM). However, how exactly such nudges can be designed and implemented remains unclear. This paper explores ‘green nudges’ that can be deployed to boost CWM on site. Instead of developing physical nudges and implementing them, this research adopts the metaverse serious games. Firstly, several green nudge options were developed based on the literature and CWM practices. Their on-site implementations were simulated in metaverse serious games. Next, seventy participants with construction site management experience were randomly assigned to either an experimental group (exposed to green nudges) or a control group (operating under conventional conditions). The Mann-Whitney U tests and XGBoost-based SHAP analyses were conducted to compare the results between the two groups. It is discovered that participants who were exposed to green nudges, such as ‘moral suasion’, ‘simplification’, and ‘social comparison’ with timely feedback, showed improved performance in ‘participation count’, ‘waste collection rate’, and ‘sorting accuracy’ in CWM. Moreover, attitudes, perceived convenience, and emotion were found to significantly influence CWM performance. Waste managers should consciously tap into these green nudges to improve these aspects and ultimately achieve improved CWM performance.
助推理论认为,选择呈现的细微变化会对人们的决策和行为产生深远的影响。基于这一理论,研究人员和实践者开始设计和实施“绿色推动”,以改变工人在现场建筑垃圾管理(CWM)中的行为。然而,这种推动究竟如何设计和实施仍不清楚。本文探讨了可以部署的“绿色推动”,以促进现场的CWM。本研究采用了虚拟严肃游戏,而不是开发和执行物理推动。首先,在文献和CWM实践的基础上,提出了几种绿色推动方案。在虚拟世界严肃游戏中模拟了他们的现场实施。接下来,70名有建筑工地管理经验的参与者被随机分配到实验组(接触绿色轻推)和对照组(在常规条件下操作)。采用Mann-Whitney U检验和基于xgboost的SHAP分析来比较两组之间的结果。研究发现,在“道德劝说”、“简化”、“社会比较”等及时反馈的绿色推动下,参与者在CWM中的“参与次数”、“废物收集率”和“分类准确性”方面的表现有所提高。此外,态度、感知便利和情绪显著影响CWM绩效。废物管理人员应有意识地利用这些绿色推动来改善这些方面,并最终实现改善CWM的性能。
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Environmental Impact Assessment Review
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