Journal of Cleaner Production最新文献_第8页

Investigating the environmental impacts of lithium-oxygen battery cathode production: A comprehensive assessment of the effects associated with oxygen cathode manufacturing 调查锂氧电池正极生产对环境的影响：全面评估与氧气阴极生产相关的影响

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144199

Aylar Narimani-Qurtlar , Ali Sayyah , Sara Pakseresht , Jafar Mostafaei , Hatem Akbulut , Tugrul Cetinkaya , Elnaz Asghari , Aligholi Niaei

Lithium-oxygen batteries offer remarkably high energy density compared to current lithium-ion batteries. The key to their electrochemical performance lies in the processes occurring at the air cathode. However, the complexity of these reactions, coupled with the by-products generated during discharge, can make the reaction process slow or impede their efficiency. This study evaluates the environmental impact of high-efficiency lithium-oxygen batteries cathodes, including titanium oxide composites, graphene-based composites and activated carbon-based composites, through a life cycle assessment across 18 impact categories using a cradle-to-gate approach with a functional unit of 25 kWh. Results show that active material production was the largest contributor to environmental impact, particularly Global Warming Potential. Among the evaluated cathodes, reduced graphene oxide/α-mnaganese oxide/palladium (rGO/α-MnO₂/Pd) demonstrated the highest environmental impact, with a global warming potential of 1130.71 kg carbon dioxide from active material production, due to its energy-intensive synthesis and the use of chemicals like sulfuric acid, sodium borohydride, hydrochloric acid, and hydrogen peroxide. Additionally, the rGO/α-MnO₂/Pd cathode had the highest Human Toxicity Potential and Ozone Depletion Potential. Batteries with graphene-based cathodes achieved a specific capacity of 7500 mAh.g⁻¹, underscoring their performance potential while highlighting the need for more sustainable cathode manufacturing methods. These findings emphasize the environmental considerations necessary for large-scale lithium-oxygen batteries implementation.

与目前的锂离子电池相比，锂氧电池具有极高的能量密度。其电化学性能的关键在于空气阴极的反应过程。然而，这些反应的复杂性，加上放电过程中产生的副产品，会使反应过程缓慢或影响其效率。本研究采用 "从摇篮到终点 "的方法，以 25 千瓦时为功能单位，通过对 18 个影响类别进行生命周期评估，评估了高效锂氧电池正极（包括氧化钛复合材料、石墨烯基复合材料和活性碳基复合材料）对环境的影响。结果表明，活性材料生产对环境影响最大，尤其是全球变暖潜势。在所评估的阴极中，还原氧化石墨烯/α-氧化锰/钯（rGO/α-MnO2/Pd）对环境的影响最大，由于其能源密集型合成以及硫酸、硼氢化钠、盐酸和过氧化氢等化学品的使用，活性材料生产产生的全球升温潜能值为 1130.71 千克二氧化碳。此外，rGO/α-MnO2/Pd 阴极的人体毒性潜能值和臭氧消耗潜能值最高。使用石墨烯基阴极的电池的比容量达到了 7500 mAh.g-1，凸显了其性能潜力，同时也强调了对更具可持续性的阴极制造方法的需求。这些发现强调了大规模实施锂氧电池所需的环境因素。

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引用次数: 0

Combining fermentation broth with spent water recycling for microalgae cultivation: nutrient reutilization, biodiesel production and techno-economic simulation 将发酵液与废水循环利用相结合用于微藻培养：养分再利用、生物柴油生产和技术经济模拟

IF 11.1 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144211

Ruoyu Chu, Haolun An, Lefei Cai, Yu Chen, Guangming Zeng, Jie Yuan, Lin Tang

This study presents an innovative and promising technology, Water Cycling Combined Fermentation Broth (WC²FB), which offers a sustainable solution to significantly reduce the costs associated with microalgae-based biodiesel production. The innovative approach involves utilising food waste as a nutrient source, supplemented by recycled water after microalgae harvesting, with the goal of improving the viability of industrial biofuel production. The results of nutrient removal efficiency demonstrated that the addition of 15% fermentation broth to the microalgal suspension efficiently utilised volatile fatty acids, resulting in a significant increase in lipid content. Additionally, biocomponent analysis confirmed that the WC²FB mode did not compromise the desirable properties of biodiesel. Through techno-economic simulations, we predicted a 90% probability of achieving net present value (NPV) at a selling price of $5/kg. Finally, we recommended that directing future efforts be directly towards the development of culture devices, low-cost bioflocculation methods, and biorefinery extraction to further advance biodiesel production.

本研究提出了一种前景广阔的创新技术--水循环联合发酵液（WC2FB），它提供了一种可持续的解决方案，可显著降低与微藻生物柴油生产相关的成本。这种创新方法包括利用食物垃圾作为营养源，并在微藻收获后辅以循环水，目的是提高工业生物燃料生产的可行性。营养物质去除效率结果表明，在微藻悬浮液中添加 15%的发酵液可有效利用挥发性脂肪酸，从而显著提高脂质含量。此外，生物成分分析证实，WC2FB 模式不会影响生物柴油的理想特性。通过技术经济模拟，我们预测在售价为 5 美元/公斤的情况下，实现净现值（NPV）的可能性为 90%。最后，我们建议将未来的努力直接导向培养装置、低成本生物絮凝方法和生物精炼提取的开发，以进一步推动生物柴油的生产。

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引用次数: 0

Sustainability assessment of educational approaches as food waste prevention measures in school catering 作为学校餐饮业防止食物浪费措施的教育方法的可持续性评估

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144196

Niina Sundin , Christopher Malefors , Christina Strotmann , Daniel Orth , Kevin Kaltenbrunner , Gudrun Obersteiner , Silvia Scherhaufer , Amanda Sjölund , Christine Persson Osowski , Ingrid Strid , Mattias Eriksson

A large proportion of school meals are wasted, leading to missed opportunities to nourish pupils, environmental impacts, and economic losses. This intervention study evaluated the long-term efficacy of three educational approaches (giving feedback to guests via plate waste tracker, pedagogic meals, and kitchen workshops) in reducing plate waste in school canteens across Europe (Austria, Germany, and Sweden). Following the intervention, a sustainability assessment was conducted, including environmental, economic, and social perspectives. The results showed that the plate waste tracker significantly reduced plate waste, by 17% (4 g/guest) from an already lower baseline level of 23 g/guest, while demonstrating long-term efficacy with sustained waste reduction up to 15 months post-implementation. This reduction lowered the environmental impacts (by 212 kg carbon dioxide equivalents per school & year) and nutrient losses (1018 MJ, 12 kg protein, and 4 kg fiber per school & year), while proving cost-effective with a payback period of only 1–2 years. Therefore, despite upfront costs and implementation barriers, food waste reduction measures in school canteens provide substantial long-term benefits across environmental, economic, and social dimensions, making them a valuable investment for sustainable school meal programs.

学校膳食中有很大一部分被浪费掉了，导致学生错失营养机会、环境影响和经济损失。这项干预研究评估了三种教育方法（通过餐盘浪费跟踪器向客人提供反馈、教学餐和厨房工作坊）在减少欧洲（奥地利、德国和瑞典）学校食堂餐盘浪费方面的长期效果。干预措施结束后，进行了一项可持续性评估，包括环境、经济和社会方面的评估。结果表明，餐盘垃圾跟踪器显著减少了餐盘垃圾，从 23 克/人的较低基线水平减少了 17%（4 克/人），同时在实施后 15 个月内持续减少垃圾，显示出长期功效。这种减少降低了对环境的影响（每所学校每年减少 212 千克二氧化碳当量）和营养损失（每所学校每年减少 1018 兆焦耳、12 千克蛋白质和 4 千克纤维），同时证明成本效益高，投资回收期仅为 1-2 年。因此，尽管存在前期成本和实施障碍，学校食堂减少食物浪费的措施仍能在环境、经济和社会等方面带来可观的长期效益，使其成为可持续学校膳食计划的一项有价值的投资。

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引用次数: 0

A socio-hydrology model for Water-Urban-Land-Population-Production Nexus 水-城市-土地-人口-生产关联的社会水文学模型

IF 11.1 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144202

Yujia Shi, Zhongjing Wang, Jianshi Zhao, Jiahui Chen, Jibin Chen

The competition between urbanization patterns, agricultural practices, population dynamics, and economic production intensifies under limited water resources. To tackle this pressing issue, the Chinese government has issued a strategy of "Basing four aspects on water resources." The strategy aims to guide the scopes and scales of urban extension, land cultivation, population capacity, and economic production based on the constraints imposed by water availability, referred to as the Water-Urban-Land-Population-Production (WULPP) Nexus. While there is literature dealing with various water-related Nexus, few studies focus on WULPP Nexus. To understand the co-evolution and conflicts of WULPP Nexus between social development and water management, the study proposed a comprehensive framework and corresponding socio-hydrology model to address the WULPP Nexus. The model integrates the WULPP Nexus with the macro-economic Input-Output model and a multi-objective optimization (MO) solution to comprehensively explore the dynamic interactions between water and social development from the perspective of water, land, labor, products, and capital. The proposed model was fully applied in Yinchuan (YC), a pilot city for Ecological Protection and High-quality Development in the Yellow River Basin, to examine its effectiveness and sensitiveness as a case study. The results reveal a strong positive correlation between population growth and socio-economic development, with urban expansion offering both benefits and trade-offs, while land cultivation presents the most significant trade-off with other objectives. Water availability, especially under consumption constraints, is crucial to improve outcomes in wet years and intensify trade-offs in dry ones. These findings underscore the importance of a balanced approach to social development and water management, offering valuable insights for sustainable development in water-scarce regions globally.

在水资源有限的情况下，城市化模式、农业生产方式、人口动态和经济生产之间的竞争愈演愈烈。为解决这一紧迫问题，中国政府提出了 "四水共治 "战略。该战略旨在根据水资源供应的限制因素，指导城市扩展、土地耕种、人口容量和经济生产的范围和规模，即水-城市-土地-人口-生产（WULPP）关系（Water-Urban-Land-Population-Production，WULPP）。虽然有文献论述了各种与水有关的关联，但很少有研究关注 WULPP 关联。为了解 WULPP Nexus 在社会发展和水资源管理之间的共同演变和冲突，本研究提出了一个综合框架和相应的社会水文学模型来解决 WULPP Nexus 问题。该模型将 WULPP Nexus 与宏观经济投入产出模型和多目标优化（MO）方案相结合，从水、土地、劳动力、产品和资本的角度全面探讨了水与社会发展之间的动态互动关系。提出的模型在黄河流域生态保护和高质量发展试点城市银川（YC）得到了充分应用，作为案例研究检验了其有效性和敏感性。研究结果表明，人口增长与社会经济发展之间存在很强的正相关性，城市扩张既能带来收益，也能带来权衡，而土地耕种与其他目标之间的权衡最为显著。水的供应，尤其是在消费限制条件下，对于改善潮湿年份的成果和加强干旱年份的权衡至关重要。这些发现强调了平衡社会发展和水资源管理的重要性，为全球缺水地区的可持续发展提供了宝贵的启示。

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引用次数: 0

Study on household investment decision of household photovoltaic project promotion -- based on inclusive finance perspective 基于普惠金融视角的户用光伏项目推广中的家庭投资决策研究

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144185

Feng Li , Xuewan Du , Huimin Li , Xin Huang , Xiaoxia Fei

Considering the lack of research on households' investment decisions in promoting photovoltaic projects in existing studies, this study constructs a four-party evolutionary game model based on local governments, financing institutions, photovoltaic enterprises and households from the perspective of inclusive finance. In addition, according to the influence of irrational psychological factors on the decision-making outcome of each interested party in decision-making, this study innovatively introduces regret theory to improve the evolutionary game model. Then, each subject' evolutionary stabilization strategies and system equilibrium points are analysed explicitly using the perceived benefit function and the replicated dynamic differential equation. Finally, combined with the system dynamics method, the theoretical derivation results are verified by parameter assignment, and the sensitivity of each subject to multiple influencing factors is explored. The results show that: (1) under the current market condition, the system is stabilized in the strategy combination of Case I (subsidy, conventional finance, non-promotion, loan to build), but the ideal state can be achieved through the refinement and adjustment of policies. And there is a mutual influence between the subjects. (2) The regret-elation perception psychology of each subject has a non-negligible influence on their decision-making behaviour. The combination of strategies in Case I is a conservative decision by the subjects. (3) A variety of factors influences the behavioural decisions of each subject, and the amount of rent that photovoltaic enterprises can provide is a crucial factor affecting households' investment decisions. (4) Local governments incentives and penalties play a key incentive role in promoting the active participation of financing institutions and photovoltaic enterprises in the promotion endeavour. This study provides practical guidance and policy insights for promoting the diffuse use of renewable energy and the promotion of household photovoltaic projects while enriching the applied research by combining regret theory and evolutionary game theory.

考虑到现有研究中缺乏对家庭在光伏项目推广中投资决策的研究，本研究从普惠金融的视角出发，构建了基于地方政府、融资机构、光伏企业和家庭的四方演化博弈模型。此外，根据决策中各利益主体非理性心理因素对决策结果的影响，本研究创新性地引入了后悔理论来完善进化博弈模型。然后，利用感知收益函数和复制动态微分方程，明确分析了各主体的进化稳定策略和系统均衡点。最后，结合系统动力学方法，通过参数赋值验证了理论推导结果，并探讨了各主体对多种影响因素的敏感性。结果表明(1）在当前市场条件下，系统在情况 I 的策略组合（补贴、常规财政、不推广、贷款建设）中趋于稳定，但理想状态可以通过政策的细化和调整来实现。而主体之间是相互影响的。(2）各主体的后悔情感认知心理对其决策行为有不可忽视的影响。案例 I 中的策略组合是主体的保守决策。(3）影响各主体行为决策的因素是多方面的，其中光伏企业所能提供的租金数额是影响家庭投资决策的关键因素。(4) 地方政府的奖惩措施对促进融资机构和光伏企业积极参与推广工作起着关键的激励作用。本研究结合遗憾理论和演化博弈论，为促进可再生能源的普及利用和家庭光伏项目的推广提供了实践指导和政策启示，同时也丰富了应用研究的内容。

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引用次数: 0

Ureolytic Nocardia tenerifensis-driven carbonate precipitation for enhanced La3+ adsorption and immobilization 特内里费岛尿素分解诺卡氏菌驱动碳酸盐沉淀以增强对 La3+ 的吸附和固定作用

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144193

Lili Wang , Jiaqi Yao , Xiuming Liu , Jinjuan Liu , Zhouai Ma , Xinyu Chen , Chengliang Cao , Rongpeng Li , Jihong Jiang

Rare earth elements (REEs) are essential in numerous modern industries, yet their extraction presents significant environmental challenges. Sustainable recycling technologies for REEs are therefore crucial for both environment protection and resource conservation. Microbially induced calcite precipitation (MICP) offers a promising solution. This study focused on a high urease activity (216.5 U/mL), lanthanum-tolerant (400 mg/L) strain, Nocardia tenerifensis KLBMP 9777. Ca²⁺ addition during the MICP process significantly alleviated the La³⁺ toxicity and enhanced mineralization. The maximum removal rate of La³⁺ increased from 66.2% to 89.1%, while the urease activity also increased from 80.7 U/mL to 101.7 U/mL. Scanning electron microscope (SEM) and X-ray energy dispersive spectroscopy (EDS) revealed the formation of needle-like and rhombic crystal structures after mineralization. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) identified carboxyl, amino, carbonyl, and carbonate groups as key players in the MICP-mediated La³⁺ adsorption. Further analysis by X-ray diffraction (XRD), Transmission electron microscopy (TEM), and Thermogravimetry-derivative thermogravimetry analyses (TG/DTG) confirmed that the mineral deposits on the cell surface were calkinsite (La₂(CO₃)₃·4H₂O) and calcite (CaCO₃). The findings advance our understanding of the MICP mechanism and provide a theoretical foundation for its application in REEs recovery and environmental remediation.

稀土元素（REEs）是众多现代工业中不可或缺的元素，但其提取却给环境带来了巨大挑战。因此，稀土元素的可持续回收技术对于环境保护和资源节约都至关重要。微生物诱导方解石沉淀（MICP）提供了一种前景广阔的解决方案。本研究以高脲酶活性（216.5 U/mL）、耐镧（400 mg/L）菌株 Nocardia tenerifensis KLBMP 9777 为研究对象。在 MICP 过程中添加 Ca2+ 可显著减轻 La3+ 的毒性并提高矿化度。La3+ 的最大去除率从 66.2% 提高到 89.1%，脲酶活性也从 80.7 U/mL提高到 101.7 U/mL。扫描电子显微镜（SEM）和 X 射线能量色散光谱（EDS）显示矿化后形成了针状和菱形晶体结构。傅立叶变换红外光谱（FTIR）和 X 射线光电子能谱（XPS）确定了羧基、氨基、羰基和碳酸盐基团是 MICP 介导的 La3+ 矿化过程中的主要角色。通过 X 射线衍射 (XRD)、透射电子显微镜 (TEM) 和热重-衍生热重分析 (TG/DTG)进行的进一步分析证实，细胞表面的矿物沉积物是白垩岩（La2(CO3)3-4H2O）和方解石（CaCO3）。这些发现加深了我们对 MICP 机制的理解，并为其在稀土元素回收和环境修复中的应用提供了理论基础。

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引用次数: 0

Accelerating green growth: The effect of technological innovation on production capabilities spillovers in developing economies 加速绿色增长：技术创新对发展中经济体生产能力外溢的影响

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144159

Hanin Alhaddad , Seyyedmilad Talebzadehhosseini , Ivan Garibay

This research addresses how technological innovation affects the spillovers of production capabilities into the green sectors in countries with developing economies. It examines the evolution of green production capabilities for 226 countries between 2003 and 2015 and identifies the key sectors driving the spillovers of production capabilities. It delves into the patterns observed in the evolution of these capabilities, considering the diverse economic classifications. Finally, it hones in on 72 developing countries that face unique challenges in their pursuit of green economic growth, exploring the effect of technological innovations on the spillovers of production capabilities into their green sectors. Using the ‘Green Sector Space’, an extension of the Product Space methodology, statistical analysis, and Partial Least Square Structural Equation Modeling, the findings of this analysis highlight significant disparities in green production capabilities in developing economies compared to other economic classifications. Additionally, the significant and dominant role non-green sectors have in driving the spillovers of production capabilities into the green sectors, demonstrating a significantly higher dominance observed in developing countries. Finally, the results underscore technological innovations’ significant and positive effect on the spillovers of production capabilities from non-green to green sectors in developing countries, which exhibits a path-dependent evolution pattern. Conversely, it does not have a significant effect on the spillovers between the green sectors. The findings address a gap in the literature by revealing the positive and significant effect of technological innovations on path-dependent green product development. This analysis recommends interventions in developing economies that heavily rely on non-green sectors to leverage technological innovations and diversify their green production capabilities for accelerated green growth.

本研究探讨了技术创新如何影响发展中国家绿色部门的生产能力外溢。研究考察了 226 个国家在 2003 年至 2015 年间绿色生产能力的演变，并确定了推动生产能力外溢的关键部门。考虑到不同的经济分类，本报告深入探讨了这些能力的演变模式。最后，报告聚焦于在追求绿色经济增长过程中面临独特挑战的 72 个发展中国家，探讨了技术创新对其绿色部门生产能力外溢的影响。利用 "绿色部门空间"（产品空间方法的延伸）、统计分析和偏最小二乘法结构方程模型，分析结果凸显了与其他经济分类相比，发展中经济体在绿色生产能力方面的显著差异。此外，非绿色部门在推动生产能力向绿色部门溢出方面发挥着重要的主导作用，这表明发展中国家的主导作用明显更高。最后，研究结果强调了技术创新对发展中国家非绿色部门向绿色部门溢出生产能力的重大积极影响，这种影响呈现出路径依赖的演变模式。相反，技术创新对绿色部门之间的溢出效应没有显著影响。研究结果填补了文献空白，揭示了技术创新对路径依赖型绿色产品开发的积极而显著的影响。这项分析建议那些严重依赖非绿色部门的发展中经济体采取干预措施，利用技术创新并使其绿色生产能力多样化，以加速绿色增长。

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引用次数: 0

Identification of thresholds and key drivers on water use efficiency in different maize ecoregions in Yellow River Basin of China 中国黄河流域不同玉米生态区用水效率阈值和关键驱动因素的识别

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144209

Wei Chen , Hui Ju , Di Zhang , William D. Batchelor

Identifying the constrains on water use efficiency (WUE) of crops along a wet-to-dry gradient is important due to irrigation water scarcity, as well as the increasing drought risk under climate change in China. This study coupled five high-resolution climate models from Coupled Model Intercomparison Project Phase 6 (CMIP6) with the Decision Support System for Agrotechnology Transfer (DSSAT)-CERES-Maize model to quantify drought risk and the drivers affecting WUE in five major maize ecoregions of the Yellow River Basin (YRB) under three future scenarios (SSP126, SSP370, and SSP585) for both the historical baseline (1985–2014) and three future periods: 2021–2040 (2030s), 2041–2070 (2050s), and 2071–2100 (2080s). And a bias correction method was implemented for the crop model to analyze optimal WUE thresholds for maize across varying dry-wet gradients. The results indicated that future drought risk will likely persist in the YRB under all scenarios, but with regional differences in drought severity and frequency. The southwestern region (V) experienced the highest frequency of drought (62.50%-SSP126), while the northwestern region (III) exhibited the lowest frequency (33.00%-SSP585) in 2030s, and 83.30% of areas in the southwestern (V) showed significant wetting in the 2080s under SSP126. The bias-corrected CERES-Maize model effectively simulated crop yield and evapotranspiration (ET), resulting in an average reduction of 4.00% and 9.73% in normalized root mean square error (nRMSE) respectively. Distinct WUE thresholds ranging from 1.96 to 8.41 kg ha⁻¹ mm⁻¹ were observed across various scenarios-periods in the maize regions, mostly under slight and moderate dry/wet conditions. Notably, all SSP585 scenarios demonstrated a decrease in WUE thresholds compared to the baseline. Across all scenarios and periods, WUE was mainly driven by yield in the eastern regions (I and II) but by ET in the western regions (III, IV, and V). These findings suggest that regions experiencing varying degrees of drought severity should undergo differentiated management and optimization of agricultural practices to improve WUE under future climate scenarios.

由于中国灌溉缺水以及气候变化下干旱风险的增加，确定作物水分利用效率（WUE）在从湿到干梯度上的制约因素非常重要。本研究将耦合模式相互比较项目第六阶段（CMIP6）的五个高分辨率气候模式与农业技术转让决策支持系统（DSSAT）-CERES-玉米模式耦合，量化了黄河流域五个主要玉米生态区域在三种未来情景（SSP126、SSP370 和 SSP585）下的干旱风险和影响水分利用效率的驱动因素，包括历史基线（1985-2014 年）和三个未来时期：2021-2040（2030 年代）、2041-2070（2050 年代）和 2071-2100（2080 年代）。并对作物模型实施了偏差校正方法，以分析不同干湿梯度下玉米的最佳WUE阈值。结果表明，在所有情景下，长三角地区未来的干旱风险都可能持续存在，但干旱的严重程度和频率存在区域差异。西南地区（V）在 2030 年代发生干旱的频率最高（62.50%-SSP126），而西北地区（III）在 2030 年代发生干旱的频率最低（33.00%-SSP585），在 SSP126 条件下，西南地区（V）83.30% 的地区在 2080 年代出现明显湿润。经过偏差校正的 CERES-Maize 模式有效地模拟了作物产量和蒸散量（ET），使归一化均方根误差（nRMSE）分别平均减少了 4.00% 和 9.73%。在玉米种植区的不同情景期，观察到不同的 WUE 临界值，范围从 1.96 到 8.41 千克/公顷-1 毫米-1，主要是在轻微和中等干旱/潮湿条件下。值得注意的是，与基线相比，所有 SSP585 情景下的 WUE 临界值都有所下降。在所有情景和时期中，WUE 在东部地区（I 和 II）主要由产量驱动，而在西部地区（III、IV 和 V）则主要由蒸散发驱动。这些研究结果表明，在未来的气候情景下，经历不同程度干旱的地区应进行差异化管理和优化农业实践，以提高水分利用效率。

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引用次数: 0

CSR investments and innovation – Aligning and creating shared value 企业社会责任投资与创新--协调并创造共享价值

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144189

Clare D'Souza , Gillian Sullivan-Mort , Quan Nguyen , Marthin Nanere , Alex Maritz

This research aims to advance the field of Corporate Social Responsibility (CSR) and innovation by exploring how CSR investments can drive product and service innovations, creating value for both the firm and its broader stakeholders. Specifically, it examines the relationship between CSR initiatives and their influence on CSR investments, as well as the resulting impact on innovation in products or services that contribute to shared value creation. The proposed framework is tested across three firm sizes—small, medium, and large—using a sample of 410 businesses within the Australian economy. The analysis was conducted using AMOS version 28, which established appropriate measurement indicators and revealed significant direct and indirect effects for the full sample. Additionally, the multi-group analysis explored nuanced relationships based on firm size.

By investigating a relatively unexplored Australian context, the paper makes significant contributions by addressing the limited research on internal (employee) CSR, external (environmental) CSR, and ethical (governance) responsibility, examining their impacts on CSR investments. Furthermore, it explores how CSR investments influence innovation to create shared value and highlights the moderating effects of different firm sizes on the relationships between the antecedents, CSR investments, and innovation. The paper concludes by discussing the theoretical and practical implications of the findings, as well as outlining directions for future research and acknowledging limitations.

本研究旨在通过探讨企业社会责任投资如何推动产品和服务创新，为企业及其更广泛的利益相关者创造价值，从而推动企业社会责任（CSR）和创新领域的发展。具体来说，该研究探讨了企业社会责任倡议与其对企业社会责任投资的影响之间的关系，以及由此对有助于创造共享价值的产品或服务创新产生的影响。本文以澳大利亚经济中的 410 家企业为样本，对所提出的框架进行了测试，测试范围涵盖小型、中型和大型三种企业规模。分析使用 AMOS 28 版进行，该版本建立了适当的衡量指标，并揭示了全部样本的显著直接和间接效应。此外，多组分析还探讨了基于企业规模的细微关系。通过调查相对未被探索的澳大利亚背景，本文针对内部（员工）企业社会责任、外部（环境）企业社会责任和道德（治理）责任的有限研究，探讨了它们对企业社会责任投资的影响，做出了重大贡献。此外，本文还探讨了企业社会责任投资如何影响创新以创造共享价值，并强调了不同企业规模对前因、企业社会责任投资和创新之间关系的调节作用。论文最后讨论了研究结果的理论和实践意义，概述了未来研究的方向，并承认了研究的局限性。

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引用次数: 0

Investigation of the relationship between economic growth and mismanaged construction waste: Evidence from 268 cities in China 经济增长与建筑垃圾管理不善之间的关系调查：来自中国 268 个城市的证据

IF 9.7 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Cleaner Production

Pub Date : 2024-11-12 DOI: 10.1016/j.jclepro.2024.144205

Wenbo Du , Hongping Yuan

Developing countries face the unprecedented environmental protection challenges associated with urban regeneration and economic development. These challenges are particularly evident in managing the vast quantities of construction waste (CW) generated by new building construction and demolition at an urban scale. Capturing the dynamic relationships between CW and urban economic development is a key step in addressing the imbalance between the two and in exploring effective management strategies. This study innovatively uses urban-level data to analyze the non-linear relationship between CW and economic development, while verifying the applicability of the Environmental Kuznets Curve (EKC) hypothesis in the context of CW management. By exploring both short-term and long-term equilibrium effects using data from selected Chinese cities, the study investigates the heterogeneity among four agglomerations through hybrid panel econometric methods. Subsequently, quantitative data analysis is conducted to uncover the socioeconomic drivers of CW generation and to explore their unidirectional causality relationships. This approach not only provides crucial evidence for developing a strategic framework for CW management, but also extends the applicability of the EKC hypothesis to the domain of CW.

发展中国家面临着与城市复兴和经济发展相关的前所未有的环境保护挑战。这些挑战在管理城市新建和拆除建筑所产生的大量建筑垃圾（CW）方面尤为明显。把握建筑垃圾与城市经济发展之间的动态关系，是解决二者失衡问题和探索有效管理策略的关键一步。本研究创新性地利用城市级数据分析了化学武器与经济发展之间的非线性关系，同时验证了环境库兹涅茨曲线（EKC）假说在化学武器管理中的适用性。本研究利用中国部分城市的数据探讨了短期和长期均衡效应，并通过混合面板计量经济学方法研究了四个城市群之间的异质性。随后，通过定量数据分析，揭示了产生化武的社会经济驱动因素，并探讨了其单向因果关系。这种方法不仅为制定化武管理战略框架提供了重要证据，还将 EKC 假说的适用范围扩展到了化武领域。

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引用次数: 0