Journal of Environmental Management最新文献_第10页

Coexistence of biocrusts with vascular plants shapes semiarid dryland multifunctionality 生物结皮与维管植物的共存形成了半干旱旱地的多功能性。

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128272

Weiqiang Dou , Bo Xiao , Giora J. Kidron , Guiyao Zhou , Camelia Algora , Manuel Delgado-Baquerizo

Drylands host complex biocrusts and vascular plant communities, and these ecosystems are vital to human wellbeing, global ecosystem sustainability, and vegetation management; they support multiple ecosystem functions simultaneously across half of our planet. However, studies on the influence of biocrust-plant interactions on multifunctionality in their coexisting state are lacking, limiting the predictability of global drylands resilience under future climate change accurately. Here, we investigated biocrusts from the Loess Plateau of China. We performed a two-year in situ experiment to explore how biocrust-vascular plant interactions affect ecosystem multifunctionality across four key functions in removed biocrusts (shrub and grass) and intact biocrusts (mixed moss and shrub/grass) ecosystems. Vascular plants, particularly grasses, contributed most to dryland ecosystem functioning. However, the combination of intact biocrusts and vascular plants significantly reduced primary productivity, carbon sequestration, nutrient supply and cycling, water and climate regulation, and biodiversity maintenance compared with vascular plants in removed biocrusts plots. The ecosystem multifunctionality index further supported this finding and showed that mixed patches of biocrusts and shrub/grass plants significantly reduced the ecosystem multifunctionality compared with vascular plants of removed biocrusts. Our short-term biocrust removal experiments suggests that potential competition between vascular plants and biocrusts may limit multifunctionality in the semiarid dryland. Therefore, future studies can help elucidate the role of non-vascular and vascular plant competition in supporting functions during global changes, which is necessary for better management of vegetation restoration in dryland ecosystems in the future.

旱地拥有复杂的生物结皮和维管植物群落，这些生态系统对人类福祉、全球生态系统可持续性和植被管理至关重要；它们同时支持着半个地球的多种生态系统功能。然而，生物壳-植物相互作用对其共存状态下多功能性影响的研究较少，限制了对未来气候变化下全球旱地恢复力的准确预测。本文对中国黄土高原的生物结皮进行了研究。我们进行了一项为期两年的原位实验，以探索生物外壳-维管植物相互作用如何影响去除生物外壳（灌木和草）和完整生物外壳（混合苔藓和灌木/草）生态系统的四个关键功能。维管植物，尤其是禾本科植物，对旱地生态系统的功能贡献最大。然而，与维管束植物相比，完整生物结皮与维管束植物的组合在初级生产力、碳固存、养分供应和循环、水分和气候调节以及生物多样性维持等方面显著降低。生态系统多功能性指数进一步支持了这一发现，表明生物结皮与灌草植物混合斑块比去除生物结皮的维管植物显著降低了生态系统的多功能性。我们的短期生物结皮去除实验表明，维管植物和生物结皮之间的潜在竞争可能限制了半干旱旱地植物的多功能性。因此，未来的研究将有助于阐明在全球变化过程中，非维管植物和维管植物的竞争在支持功能中的作用，这对未来更好地管理旱地生态系统的植被恢复是必要的。

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引用次数: 0

Magnetic flower-like Bi5O7I/CuFe2O4 photocatalyst for doxycycline degradation: Combined experimental, density functional theory and antibacterial study 磁性花状Bi5O7I/CuFe2O4光催化剂降解强力霉素：结合实验、密度泛函理论和抗菌研究

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128282

Shikai Xue , Dongying Zhu , Tongxin Wu , Ninghang Zhou , Jiaying Luo , Linqi Liu , Haiyan Wang , Qiujun Lu , Guoxing Yin , Fuyou Du

Photocatalytic technology has garnered significant attention due to its environmentally friendly nature and effective degradation capabilities. However, the absence of photocatalytic materials that possessed high removal efficiency, facile separation from aqueous phases, and good recyclability has constrained the advancement of photocatalytic treatment technologies. To address these challenges, a novel magnetic flower-like Bi₅O₇I-modified CuFe₂O₄ (BOI/CFO) photocatalyst was successfully fabricated via solvothermal method and subsequent calcination. The prepared BOI/CFO composites exhibited excellent antimicrobial properties and highly efficient photocatalytic degradation performance. Under the optimal conditions, the photodegradation efficiency of BOI/CFO composite (10 mg) for doxycycline (20 mg/L) was 99.48 % within 30 min under visible light irradiation, and retain above 88 % even after 5 consecutive uses. Further characterization and bacterial experiments confirmed the presence of a photogenerated electron transfer mechanism in the BOI/CFO composite and its strong antimicrobial capability. Finally, the possible doxycycline degradation pathways were speculated by analyzing the corresponding degradation intermediates with LC-MS method, and the toxicity evolution of the doxycycline degradation products was valuated by using density functional theoretical method. This research is anticipated to furnish valuable insights into the designing of photocatalysts characterized by superior recyclability S-Scheme Heterojunction Photocatalyst.

光催化技术因其环境友好性和有效的降解能力而受到广泛关注。然而，由于缺乏脱除效率高、易与水相分离、可回收性好的光催化材料，制约了光催化处理技术的发展。为了解决这些问题，通过溶剂热法和随后的煅烧，成功制备了一种新型的磁性花状bi5o7i修饰CuFe2O4 （BOI/CFO）光催化剂。制备的BOI/CFO复合材料具有优异的抗菌性能和高效的光催化降解性能。在最佳条件下，BOI/CFO复合材料（10 mg）在可见光照射下30 min内对强力霉素（20 mg/L）的光降解效率为99.48%，连续使用5次后仍保持在88%以上。进一步的表征和细菌实验证实了BOI/CFO复合材料中存在光生电子传递机制，并具有较强的抗菌能力。最后，通过LC-MS方法分析相应的降解中间体，推测强力霉素可能的降解途径，并利用密度泛函理论方法评价强力霉素降解产物的毒性演变。本研究将为设计具有优良可回收性的s型异质结光催化剂提供有价值的见解。

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引用次数: 0

Scale-Dependent environmental influences on urban green space sentiment: Integrating multimodal social media analysis and explainable spatial models 尺度依赖性环境对城市绿地情绪的影响：多模式社会媒体分析与可解释空间模型的整合

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128293

Jiaqi Zhang , Jin Rui , Chenfan Cai

The benefits of urban green spaces (UGSs) to public health arise not only from the green spaces themselves but also from the surrounding environment (SE). However, leveraging multimodal social media data to comprehensively assess the associations between environmental features and sentiment toward UGSs remains challenging. This study integrates SHapley Additive exPlanations and Geographically Weighted Regression, using 59,880 social media text entries and 49,501 images from 280 UGSs in Beijing to reveal nonlinear associations, synergies, and spatial heterogeneities across different scales of UGSs. The results show that: (1) SE features play a more important role than UGS attributes in determining UGS sentiment, with building coverage ratio, gross domestic product, and population density contributing the most. (2) All environmental variables exhibit nonlinear, interactive effects, and geographic heterogeneity on UGS sentiment. (3) Within SE features, accessibility is positively associated with sentiment in community green spaces but negative in non-community green spaces, whereas floor area ratio is positive in both, revealing scale-dependent heterogeneity across UGSs and localized effects within their effective ranges. Our methodology combines photo- and text-based sentiment analysis, offering a more accurate and efficient approach to capturing public insights and thereby enabling more precise UGS planning decisions.

城市绿地对公众健康的益处不仅来自绿地本身，还来自周边环境。然而，利用多模式社交媒体数据来全面评估环境特征与对UGSs的看法之间的关系仍然具有挑战性。本研究将SHapley加性解释和地理加权回归相结合，利用北京280个ugs的59,880个社交媒体文本条目和49,501张图像，揭示了不同尺度ugs之间的非线性关联、协同效应和空间异质性。结果表明：(1)SE特征比UGS属性对UGS情绪的影响更大，其中建筑覆盖率、国内生产总值和人口密度对UGS情绪的影响最大。(2)各环境变量对UGS情绪的影响均表现出非线性、交互效应和地理异质性。(3)在SE特征中，可达性与社区绿地的情感呈正相关，与非社区绿地的情感呈负相关，而容积率与社区绿地的情感均呈正相关，揭示了城市绿地之间的尺度依赖性异质性及其有效范围内的局部效应。我们的方法结合了基于照片和文本的情感分析，提供了更准确、更有效的方法来获取公众见解，从而实现更精确的UGS规划决策。

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引用次数: 0

A bioinspired hybrid nature-based solution using artificial mangrove roots to enhance coastal resilience and mangrove rehabilitation 这是一个以生物为灵感的基于自然的混合解决方案，利用人工红树林的根来增强海岸的恢复力和红树林的恢复。

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128299

Warit Charoenlerkthawin , William C. Burnett , Thanawatth Sattabongkot , Narakorn Srinil , Yan Naung Aye , Ni Nyoman Pujianiki , Butsawan Bidorn

Global mangrove restoration efforts often face high failure rates due to unsuitable site conditions and ineffective techniques. Despite strong initiatives, replanting mangroves without additional intervention remains highly challenging. The Artificial Mangrove Root (AMR) system considered here is a novel, removable, hybrid nature-based solution bioinspired by the sediment-trapping and wave-dissipating functions of natural mangrove roots. This study evaluates the effectiveness of one of the first large-scale AMR installation implemented to enhance mangrove rehabilitation along a 1.2-km stretch of coastline covering approximately 20 ha at the Bang Pu Recreation Center in the Eastern Chao Phraya Delta, Thailand. Shoreline change analysis (1954–2024) was used to assess the outcomes of long-term mangrove rehabilitation while UAV-LiDAR surveys, comprising point clouds with an average density of 350 points/m² and vertical accuracy better than ±3 cm, conducted over a 20-month period quantified seabed elevation changes induced by AMR installation. The results show that AMRs effectively trapped sediment, increasing seabed elevation by up to 40 cm while reaching an equilibrium within one year. With the current configuration, approximately 4 ha of new substrate reached elevations favorable for mangrove replantation, where field observations confirmed early seedling survival. As a pilot study, these findings provide quantitative, high-resolution evidence of the AMR's capacity to create favorable biophysical conditions for mangrove establishment. However, broader generalizations require long-term, multi-site monitoring and integration with ecological parameters such as soil properties, carbon sequestration, and seedling dynamics. By supporting mangrove recovery, AMRs offer a scalable, adaptive approach contributing to sustainable coastal management and global development goals.

由于场地条件不适宜和技术无效，全球红树林恢复工作往往面临很高的失败率。尽管有强有力的倡议，在没有额外干预的情况下重新种植红树林仍然极具挑战性。这里考虑的人工红树林根（AMR）系统是一种新颖的、可移动的、基于自然的混合解决方案，其灵感来自于天然红树林根的沉积物捕获和波浪消散功能。本研究评估了在泰国湄南三角洲东部邦普娱乐中心实施的首批大规模AMR装置之一的有效性，该装置旨在加强沿着1.2公里长的海岸线（约20公顷）的红树林恢复。海岸线变化分析（1954-2024）用于评估红树林长期恢复的结果，而UAV-LiDAR调查（包括平均密度为350点/m2，垂直精度优于±3 cm的点云）进行了为期20个月的量化AMR装置引起的海底高程变化。结果表明，AMRs有效地截留了沉积物，使海床高程增加了40厘米，并在一年内达到平衡。在目前的配置下，大约4公顷的新基质达到了有利于红树林重新种植的海拔，在那里实地观察证实了早期幼苗的存活。作为一项试点研究，这些发现提供了定量的、高分辨率的证据，证明抗菌素耐药性有能力为红树林的建立创造有利的生物物理条件。然而，更广泛的推广需要长期、多地点的监测，并与土壤特性、碳固存和幼苗动态等生态参数相结合。通过支持红树林恢复，amr提供了一种可扩展的适应性方法，有助于可持续沿海管理和实现全球发展目标。

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引用次数: 0

Sustainable removal of acetamiprid by a sludge-derived catalyst through catalytic wet peroxide oxidation: Performance, mechanism and toxicity assessment 污泥源催化剂湿式过氧化氧化法对啶虫脒的可持续去除：性能、机理和毒性评估。

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128231

Pablo Gutiérrez-Sánchez , Juan M. Garrido-Zoido , María Martín-Martínez , Silvia Álvarez-Torrellas , M. Victoria Gil , Juan García

The persistence of acetamiprid in aquatic environments, due to incomplete removal by conventional treatments, poses serious ecological and health concerns. This study investigated the Catalytic Wet Peroxide Oxidation (CWPO) treatment of acetamiprid using a sustainable iron-rich carbonaceous catalyst (FeBioAC) derived from sewage sludge. The catalyst exhibited high specific surface area (550 m²·g⁻¹) and thermal stability, enabling the efficient degradation of acetamiprid under mild conditions. CWPO experiments were conducted under varying concentrations (15–50 μg·mL⁻¹), temperatures (35–65 °C), and water matrices, including river samples and wastewater effluents. The optimal H₂O₂/acetamiprid ratio of 9.2 μg H₂O₂·μg ACE⁻¹ achieved 90 % removal in ultrapure water and above 84 % in real matrices, with high catalyst reusability over four cycles.

Kinetic modelling revealed that a dual-reactant hyperbolic model best described the process (R² = 0.9863), with a notably low activation energy (12.56 kJ·mol⁻¹). Density Functional Theory (DFT) calculations provided mechanistic insights into the degradation pathways, highlighting dechlorination, hydroxylation, and decyanation as dominant reactions. Toxicity assessments confirmed that transformation products were substantially less harmful than the parent compound. These findings positioned FeBioAC as a sustainable and effective catalyst for removing emerging contaminants from complex aquatic environments.

由于常规处理方法不能完全去除，对乙酰咪啶在水生环境中持续存在，造成了严重的生态和健康问题。本研究利用从污水污泥中提取的富铁碳质催化剂（FeBioAC）研究了湿式过氧化氧化（CWPO）对啶虫啉的催化处理。该催化剂具有较高的比表面积（550 m2·g-1）和热稳定性，可在温和条件下高效降解啶虫啉。在不同浓度（15-50 μg·mL-1）、温度（35-65°C）和水基质（包括河流样品和废水）下进行CWPO实验。最佳H2O2/啶虫啉比为9.2 μg H2O2·μg ACE-1，在超纯水中去除率达到90%，在真实基质中去除率达到84%以上，并且在4个循环中具有较高的催化剂重复利用率。动力学模型表明，双反应物双曲模型最能描述反应过程（R2 = 0.9863），且活化能较低（12.56 kJ·mol-1）。密度泛函理论（DFT）计算提供了降解途径的机理见解，强调脱氯、羟基化和脱氰是主要反应。毒性评估证实，转化产物的危害性大大低于母体化合物。这些发现将FeBioAC定位为一种可持续和有效的催化剂，用于去除复杂水生环境中的新污染物。

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引用次数: 0

Emulating vegetation phenology in Xinjiang using GOSIF data: Investigating cumulative and lagged responses to drought 利用GOSIF数据模拟新疆植被物候：研究对干旱的累积和滞后响应。

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128274

Cong Xue , Mei Zan , Shunfa Yang , Jia Zhou , Lili Zhai , Zhongqiong Zhao , Jian Ke

Global climate change has intensified the frequency and severity of drought, profoundly impacting vegetation phenology in Xinjiang arid zone. We employed Solar–Induced Fluorescence (SIF), MODIS phenology product and the Standardized Precipitation Evapotranspiration Index (SPEI) from 2001 to 2020 to extract the spatiotemporal evolution of vegetation Start of Season (SOS) and End of Season (EOS) and conducted a quantitative analysis of the cumulative and lagged effects of droughts on vegetation SOS and EOS, as well as the characteristics of drought resilience. The results indicated that: (1) Comparison with the phenological product revealed that vegetation SOS_GOSIF was delayed by an average of 13.450 days compared to SOS_EVI, while EOS_GOSIF was advanced by 24.257 days compared to EOS_EVI; (2) The overall trend of vegetation SOS in Xinjiang had shown a significant advancement, while the EOS had exhibited a delayed trend; (3) SOS_GOSIF was predominantly suppressed by 1-month drought cumulative effects, whereas EOS_GOSIF exhibited higher sensitivity to 6-month drought. Furthermore, SOS_GOSIF showed a 2-month lagged response to drought and EOS_GOSIF had a 1-month lagged effect; (4) The resilience of different vegetation phenologies to drought exhibited notable variation. Grassland SOS_GOSIF demonstrated the strongest post–drought recovery capacity, whereas shrubland EOS_GOSIF exhibited the highest drought resilience. This study highlights the advantages of GOSIF in monitoring vegetation phenology in Xinjiang. It provides novel insights into the cumulative and lagged effects of multi–scale droughts on vegetation phenology in arid environments. Furthermore, we developed an integrated framework encompassing ‘drought stress–phenological response–vegetation growth recovery’ and quantified differences in the post–drought recovery capacity of both SOS and EOS across various vegetation types. These findings offer a scientific basis for ecological restoration initiatives and sustainable development in arid zones.

全球气候变化加剧了干旱发生的频率和严重程度，深刻影响了新疆干旱区植被物候。利用太阳诱导荧光（SIF）、MODIS物候产品和标准化降水蒸散指数（SPEI）提取2001 - 2020年植被季初（SOS）和季末（EOS）的时空演变特征，定量分析干旱对植被SOS和EOS的累积效应和滞后效应，以及干旱恢复能力特征。结果表明：(1)与物候产品比较，植被SOSGOSIF比SOSEVI平均延迟13.450 d， EOSGOSIF比EOSEVI平均提前24.257 d；(2)新疆植被SOS总体趋势呈现显著的进步趋势，而EOS呈现滞后趋势；(3) SOSGOSIF主要受1个月干旱累积效应的抑制，而EOSGOSIF对6个月干旱的敏感性更高。SOSGOSIF对干旱的响应滞后2个月，EOSGOSIF滞后1个月；(4)不同植被物候对干旱的适应能力存在显著差异。旱后恢复能力最强的是草地，而旱后恢复能力最强的是灌木林。本研究突出了GOSIF在新疆植被物候监测中的优势。它为干旱环境下多尺度干旱对植被物候的累积效应和滞后效应提供了新的见解。此外，我们开发了一个包含“干旱应力-物候响应-植被生长恢复”的综合框架，并量化了SOS和EOS在不同植被类型中干旱后恢复能力的差异。研究结果为干旱区生态恢复和可持续发展提供了科学依据。

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引用次数: 0

Reservoir water quality planning based on a robust multi-criteria decision-making approach under deep uncertainty 深度不确定性下基于鲁棒多准则决策方法的水库水质规划。

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128271

Masoomeh Haghighat , Mohammad Reza Nikoo , Nasser Talebbeydokhti , Mohammad Reza Hassani

Recently, uncertainties caused by climate change have been a major challenge in water resource management. In this study, to examine how robustness metrics influence final solution choices, a Multi-Criteria Decision-Making (MCDM) approach within a Multi-Objective Robust Decision-Making (MORDM) framework is integrated. In this framework, the LARS-WG Regional Climate Change Simulation model is applied to generate meteorological data, and AI-driven machine learning models (MLP, SVR, GRNN, and ANFIS) are used to simulate runoff. Also, the CE-QUAL-W2 water quality model and the NSGA-III multi-objective optimization algorithm are applied. For analyzing uncertainties and assessing future strategies, three climate change scenarios (SSP5-8.5, SSP2-4.5, and SSP1-2.6) are evaluated (2030–2034). In the following, to select optimal solutions and enhance resilience in reservoir management under high uncertainty, robustness metrics, such as regret and satisfaction, are incorporated into an MCDM model. In this study, to improve water quality and emphasize the importance of flexible strategies in water resource management, specific withdrawal strategies are implemented. Therefore, this research aims to enhance project strategies by integrating MCDM and MORDM and to offer a comprehensive, structured approach for water managers to develop strategies that address climate change impacts and protect reservoir water quality.

近年来，气候变化引起的不确定性已成为水资源管理的主要挑战。在本研究中，为了检验鲁棒性指标如何影响最终解决方案的选择，我们整合了多目标鲁棒决策（MORDM）框架中的多标准决策（MCDM）方法。在该框架中，应用LARS-WG区域气候变化模拟模型生成气象数据，并使用人工智能驱动的机器学习模型（MLP、SVR、GRNN和ANFIS）模拟径流。采用ce - quality - w2水质模型和NSGA-III多目标优化算法。为分析不确定性并评估未来策略，对2030-2034年的3种气候变化情景（SSP5-8.5、SSP2-4.5和SSP1-2.6）进行了评估。接下来，为了在高不确定性条件下选择最优方案并增强油藏管理的弹性，将后悔和满意度等鲁棒性指标纳入MCDM模型。在本研究中，为了改善水质，强调灵活策略在水资源管理中的重要性，实施了具体的退出策略。因此，本研究旨在通过整合MCDM和MORDM来加强项目战略，并为水资源管理者制定应对气候变化影响和保护水库水质的战略提供全面、结构化的方法。

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引用次数: 0

Cooling benefits of Urban agriculture to inhabitants—mapping cooling potential of allotments in European functional urban areas 城市农业对居民的降温效益-绘制欧洲功能城市地区分配的降温潜力。

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-11 DOI: 10.1016/j.jenvman.2025.128275

Grzegorz Budzik , Marta Sylla , Catharina J.E. Schulp

As climate change accelerates and open urban spaces diminish, multifunctional urban planning solutions that enhance multiple ecosystem services (ES) are essential. Urban agriculture, particularly allotment gardens, plays a key role in addressing these challenges. This study assesses the cooling potential of all allotments across European Functional Urban Areas (FUAs) in terms of area cooled, maximum cooling distance and intensity, cooling effectiveness, and the population benefiting from cooling services, using a custom watershed-based tool, OpenStreetMap data, and land surface temperature from Landsat 8/9. Allotments were classified according to their proximity to blue-green infrastructure (BGI) and the types of cooled built-up areas, employing the concept of local climate zones and NDVI statistics. Results show that allotments provide cooling services to 4.1 million people within FUAs, with 1.7 million in Germany. Each square kilometre of allotments cools an average of 8,221 people, with the cooled area being, on average, 2.8 times larger than the allotment size. The most effective allotments are in Brussels, where each square kilometre cools about 100,000 people. In terms of urban morphology, urban agriculture was 23 % more efficient than peri-urban agriculture, independent allotments demonstrated effectiveness comparable to those located in proximity to larger BGI objects, and only 5 % of allotments cooled areas with the highest heat risk. This is the first large-scale assessment of the cooling ES provided by urban agriculture in Europe, quantitatively indicating that urban planning should prioritize allotment placement near dense urban areas while maintaining their optimal size to maximize urban heat island mitigation.

随着气候变化的加速和城市开放空间的减少，增强多种生态系统服务（ES）的多功能城市规划解决方案至关重要。都市农业，特别是土地花园，在应对这些挑战方面发挥着关键作用。本研究利用基于流域的定制工具、OpenStreetMap数据和Landsat 8/9的地表温度，从冷却面积、最大冷却距离和强度、冷却效率和受益于冷却服务的人口等方面评估了欧洲功能城市地区（FUAs）所有分配的冷却潜力。利用当地气候带和NDVI统计数据的概念，根据其与蓝绿色基础设施（BGI）的接近程度和冷却建成区的类型对分配进行分类。结果显示，这些分配为410万人提供了制冷服务，其中170万人在德国。每平方公里的小区平均为8221人降温，降温面积平均为小区面积的2.8倍。最有效的分配是在布鲁塞尔，那里每平方公里冷却大约10万人。就城市形态而言，城市农业的效率比城郊农业高23%，独立分配的效率与位于较大华大基因物体附近的分配的效率相当，只有5%的分配冷却了热风险最高的地区。这是对欧洲城市农业提供的冷却ES的第一次大规模评估，定量地表明城市规划应优先考虑在密集城市地区附近分配分配位置，同时保持其最佳规模，以最大限度地缓解城市热岛。

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引用次数: 0

Effect of CaCl2 addition on decontamination of radioactive Cs in soil via heat treatment 添加CaCl2对热处理土壤中放射性铯去污的影响。

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-10 DOI: 10.1016/j.jenvman.2025.128239

Iwao Shimoyama , Toshihiro Kogure , Taiga Okumura , Yuji Baba

The effectiveness of CaCl₂ addition in thermal soil decontamination was investigated by performing heat treatment on radioactive Cs-contaminated Fukushima soil under both atmospheric and vacuum conditions, and comparing the results with NaCl addition. When CaCl₂ was added, a decontamination ratio exceeding 95% was achieved at approximately 740°C under both atmospheric and vacuum conditions, showing slightly higher efficacy than NaCl addition. For the removal of non-radioactive Cs adsorbed onto weathered biotite by heat treatment, CaCl₂ exhibited a distinctly greater effect than NaCl. While NaCl induces rapid ion exchange (RIE) in clay minerals of the soil under vacuum conditions, CaCl₂ was found to trigger RIE at the initial stage of the heat treatment under both atmospheric and vacuum conditions, subsequently promoting the decomposition and phase transformation of clay minerals leading to the removal of radioactive Cs. These results indicate that CaCl₂ is an effective additive for heat treatment even when used alone.

通过在常压和真空条件下对放射性铯污染的福岛土壤进行热处理，并与添加氯化钠进行对比，考察了添加氯化钙对土壤热净化的效果。在常压和真空条件下，在740℃左右的温度下，CaCl2的去污率均超过95%，效果略高于NaCl。对于热处理后吸附在风化黑云母上的非放射性Cs， CaCl2的去除效果明显大于NaCl。NaCl在真空条件下诱导土壤粘土矿物的快速离子交换（RIE）， CaCl2在常压和真空条件下的热处理初期触发RIE，随后促进粘土矿物的分解和相变，导致放射性Cs的去除。这些结果表明，即使单独使用CaCl2也是一种有效的热处理添加剂。

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引用次数: 0

Bacterial community in household municipal solid waste and bioaerosols released: Implications to health risks 家庭城市固体废物和释放的生物气溶胶中的细菌群落：对健康风险的影响

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management

Pub Date : 2025-12-10 DOI: 10.1016/j.jenvman.2025.128216

Boning Kong , Shuang Li , Muhammad Asad , Yanqing Liu , Yuyang Long , Yan Zhao , Xia Huang , Ming Zhao , Wenjing Lu

Household municipal solid waste (HMSW) is a heterogeneous stream rich in moisture and organic matter, creating favorable conditions for microbial proliferation, including potentially pathogenic bacteria posing risks to human health. This study characterized microbial communities in solid waste and aerosols emitted from household waste bins of residential areas, indicating that the bacterial community in aerosols exhibits higher diversity and richness (177 % higher) compared to that in HMSW. The environmental response analysis shows that natural factors shape the waste community in a complex and indirect route, while bacteria in the solid waste significantly influenced the surrounding background structure of the aerosol community. Furthermore, 36 risk-associated bacterial species were identified, with 14 exhibiting a high aerosolization potential (Aerosolization Index >1). Quantitative microbial risk assessment was made for two typical risk species, Acinetobacter baumannii and Klebsiella pneumoniae. The annual human health guard rate shows that Acinetobacter baumannii pose a notable health risk to residents (71.02 %), and both the two is potentially harmful to professionals (0 % and 1.17 %), highlighting the need for vigilance regarding microbial exposure from HMSW. The study provides fundamental data on risk bacteria and their environmental behavior, offering valuable insights for improving waste management strategies and mitigating public health risks.

生活城市固体废物是一种富含水分和有机物的异质流，为微生物增殖创造了有利条件，包括对人类健康构成威胁的潜在致病菌。本研究对居民区生活垃圾箱排放的固体废物和气溶胶中的微生物群落进行了研究，结果表明，气溶胶中的细菌群落多样性和丰富度比城市生活垃圾高177%。环境响应分析表明，自然因素对废弃物群落的影响是复杂而间接的，而固体废弃物中的细菌对气溶胶群落的周围背景结构影响显著。此外，鉴定出36种与风险相关的细菌，其中14种具有高雾化潜力（雾化指数bbb1）。对鲍曼不动杆菌和肺炎克雷伯菌两种典型危险菌进行了微生物风险定量评价。年度人体健康防护率显示，鲍曼不动杆菌对居民的健康风险显著（71.02%），对专业人员的健康风险均有潜在危害（0%和1.17%），突出了对城市生活垃圾微生物暴露的警惕必要性。这项研究提供了关于危险细菌及其环境行为的基本数据，为改进废物管理战略和减轻公共卫生风险提供了宝贵的见解。

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