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Quantifying the nonlinear interactions of 2D/3D building and green space morphology on land surface temperature across different urban functional zones 量化二维/三维建筑与绿地形态对不同城市功能区地表温度的非线性相互作用
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-22 DOI: 10.1016/j.scs.2026.107175
Haiyan Luo , Rui Zhou , Chunlin Li , Qun Ma , Xuening Fang , Yina Hu , Xinlin Lv , Zining Dong , Yujing Tian , Shubo Fang
Rapid urbanization and global warming have exacerbated the deterioration of the urban thermal environment and its adverse effects. Urban spatial pattern, as an important approach to regulating the urban thermal environment, has increasingly drawn academic attention for its influence on land surface temperature (LST). Although numerous studies in this field, quantitative research on the comprehensive effects and nonlinear interactions of 2D/3D building and green space morphology on LST remains scarce, particularly from urban functional zones (UFZs) perspective. Therefore, this research took Shanghai as a case study and utilized multi-source datasets, such as building outlines, green space distribution, and canopy height, to quantify the combined and interactive effects of building and green space morphology on LST across various UFZs, applying the XGBoost-SHAP model. The results indicated that (1) LST varied with UFZs. Biophysical parameters and building morphology accounted for a greater proportion of the effects on LST. The main factors influencing LST differed significantly across distinct UFZs, but showed some similar laws. (2) Within different UFZs, the influence of the dominant factors on LST showed significant spatial differences and threshold effects. Among them, BCR was the main warming factor, with thresholds of 24.64 %, 36.25 %, 23.22 %, and 33.64 % respectively in residential, commercial, public service, and industrial zones. Conversely, NDVI was the primary cooling factor with thresholds of 0.35, 0.23, 0.37, and 0.29, respectively. (3) The LST in different UFZs was affected by the interaction between building and green space morphology metrics. The synergistic interaction between high FAR and high BCR contributed to the reduction of LST in residential and commercial zones. In areas with high BCR, the cooling effects could be achieved in the commercial zone (when BH_SD was <15 m), in public service zone (when MTH was <3 m), and industrial zone (when NDVI and BSA was both greater than 0.2, and MBH exceeded 10 m). Our research findings can provide more targeted scientific evidence and decision support for the pattern optimization and planning design of buildings and green spaces aimed at improving the urban thermal environment.
快速城市化和全球变暖加剧了城市热环境的恶化及其不利影响。城市空间格局作为调节城市热环境的重要途径,其对地表温度的影响日益受到学术界的关注。尽管这一领域的研究很多,但关于二维/三维建筑和绿地形态对地表温度的综合效应和非线性相互作用的定量研究仍然很少,特别是从城市功能区(UFZs)的角度。因此,本研究以上海市为例,利用建筑轮廓、绿地分布、冠层高度等多源数据集,应用XGBoost-SHAP模型,量化建筑形态与绿地形态对不同区域地表温度的组合交互效应。结果表明:(1)地表温度随ufz的变化而变化。生物物理参数和建筑形态对地表温度的影响较大。影响地表温度的主要因素在不同区域间存在显著差异,但存在一些相似的规律。(2)在不同区域内,优势因子对地表温度的影响表现出显著的空间差异和阈值效应。其中,BCR是主要的增温因子,住宅、商业、公共服务和工业小区的阈值分别为24.64%、36.25%、23.22%和33.64%。相反,NDVI是主要的冷却因子,阈值分别为0.35、0.23、0.37和0.29。(3)不同区域的地表温度受建筑与绿地形态指标的交互作用影响。高FAR和高BCR之间的协同作用有助于降低住宅区和商业区的地表温度。在高BCR区域,商业区(BH_SD = 15 m时)、公共服务区(MTH = 3 m时)和工业区(NDVI和BSA均大于0.2,MBH大于10 m时)均能达到降温效果。研究结果可为改善城市热环境的建筑和绿地格局优化和规划设计提供更有针对性的科学依据和决策支持。
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引用次数: 0
Urban heat & cool island: Investigating Pune’s (India) thermal dynamics using MODIS and Landsat 8–9 data 城市热岛和冷岛:利用MODIS和Landsat 8-9数据调查印度浦那的热动力学
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-22 DOI: 10.1016/j.scs.2026.107174
Payal More , Dhaarna
The urban thermal dynamics of a city comprise of Urban Heat Island Effect (UHI) and the Urban Cool Island Effect (UCI) that influence the local climate. This research employs a spatial and comparative approach to analyze thermal variations in Pune, India, by studying the conditions across three distinct years-2016, 2020, and 2024, to capture yearly variations influenced by changes in human activity and environmental dynamics, particularly during the 2020 period marked by the COVID-19 lockdown in India. To evaluate the urban thermal patterns, the research integrates four indices (i) Land Surface Temperature (LST), (ii) Normalized Difference Vegetation Index (NDVI), (iii) Normalized Difference Moisture Index (NDMI), and (iv) Normalized Difference Anthropogenic Impervious Surface Index (NDAISI). The spatial mapping has been done using Q-GIS, presenting diurnal and seasonal patterns for all indices. Moderate Resolution Imaging Spectroradiometer (MODIS) and Landsat 8–9 satellite data were utilized for April (summer) and November (winter) for the analysis. Statistical correlation techniques have been used to evaluate the interrelationship between LST with the other three indices. To capture the temporal disparity in heat retention and dissipation, it assesses interactions between these indices with diurnal and seasonal variations. Surface Urban Heat Island Intensity (SUHII) variation has been plotted using a Box and Whisker plot. The result suggests that Pune shows the UCI effect during the day, while the UHI effect during the night. During UCI (daytime), the results indicate a positive correlation between LST and NDAISI, whereas NDVI and NDMI exhibit strong negative correlations with LST, highlighting their cooling effects. The study highlights intra-urban thermal variation as an urban heat spread (UHS) effect. These findings provide valuable insights for urban planners and policymakers in developing heat action plans and climate-resilient urban strategies for Pune and similar cities.
城市热力动力学包括影响当地气候的城市热岛效应(UHI)和城市冷岛效应(UCI)。本研究采用空间和比较的方法,通过研究2016年、2020年和2024年三个不同年份的条件,分析了印度浦那的热变化,以捕捉受人类活动和环境动态变化影响的年度变化,特别是在印度2019冠状病毒病封锁的2020年期间。为了评价城市热格局,研究采用了4个指标(1)地表温度(LST)、(2)归一化植被指数(NDVI)、(3)归一化水分指数(NDMI)和(4)归一化人为不透水面指数(NDAISI)来评价城市热格局。利用Q-GIS完成了空间制图,呈现了所有指数的日和季节模式。利用中分辨率成像光谱仪(MODIS)和Landsat 8-9卫星4月(夏季)和11月(冬季)的数据进行分析。利用统计相关技术评价了地表温度与其他三个指标之间的相互关系。为了捕捉热量保持和耗散的时间差异,它评估了这些指数与日和季节变化之间的相互作用。地表城市热岛强度(SUHII)的变化采用箱形图和须状图绘制。结果表明,浦那在白天表现出UCI效应,而在夜间表现出UHI效应。在UCI(白天)期间,LST与NDAISI呈显著正相关,而NDVI和NDMI与LST呈显著负相关。该研究强调了城市内部热变化作为城市热传播(UHS)效应。这些发现为城市规划者和决策者为浦那和类似城市制定热行动计划和气候适应型城市战略提供了宝贵的见解。
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引用次数: 0
Regulation of blue-green landscape fragmentation on day-night surface urban heat island: A case study of Kunming 城市地表热岛对蓝绿景观破碎化的调控——以昆明市为例
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-22 DOI: 10.1016/j.scs.2026.107173
Jiaxi Li , Zihan Liu , Zhenfeng Shao , Huyan Fu
Accelerating global urbanization has intensified the urban heat island (UHI) effect and exacerbated the fragmentation of blue-green landscapes (BGL) (i.e., water bodies and vegetation cover). While previous studies confirmed the mitigating impact of BGL on surface urban heat islands (SUHI), the dynamic influence mechanisms of their fragmentation on diurnal and seasonal SUHI intensity (SUHII) remain inadequately understood. Our study investigated Kunming, a representative plateau city, by integrating high-resolution land cover data with SUHII data. Using Pearson correlation analysis and generalized additive models, we systematically analyzed the diurnally differentiated impact mechanisms of six BGL fragmentation types (Intact, Interior, Dominant, Transitional, Patchy, and Rare) on the SUHII. The key findings: (1) BGL coverage reached 54.64 %, but the core area exhibited high fragmentation (Patchy + Transitional = 74.93 %). (2) SUHII showed spatial gradients (core > middle > expanded area), with stable nighttime values but significantly enhanced daytime intensity in summer. (3) Rare, Patchy, and Transitional types positively correlated with SUHII (r = 0.13 ∼ 0.60), while Dominant, Interior, and Intact types showed negative correlations (r = –0.03 ∼ –0.15). Crucially, their cooling effect demonstrated nonlinear enhancement when Intact/Interior exceeded 40 % coverage. Conversely, higher Patchy/Rare proportions exacerbated SUHII. (4) Patchy contributed most to diurnal SUHII (daytime: 56.47 %; nighttime: 51.59 %). The core and middle areas were dominated by highly fragmented types (Rare + Patchy > 68.45 %), while the Transitional type shaped the expanded area. This study reveals the impact mechanism of BGL fragmentation on the SUHI, informing UHI mitigation via landscape optimization.
全球城市化的加速加剧了城市热岛效应,加剧了蓝绿景观(即水体和植被覆盖)的破碎化。虽然以往的研究证实了BGL对地表城市热岛(SUHI)的缓解作用,但其破碎化对日和季节热岛强度(SUHII)的动态影响机制仍未得到充分了解。本文采用高分辨率土地覆盖数据与SUHII数据相结合的方法,对具有代表性的高原城市昆明进行了调查。利用Pearson相关分析和广义加性模型,系统分析了6种BGL破碎类型(完整、内部、主导、过渡、斑块和罕见)对SUHII的日差异影响机制。结果表明:(1)BGL盖度达到54.64%,但核心区破碎化程度较高(斑块+过渡性= 74.93%);(2) SUHII表现出空间梯度(核心>;中部>;扩大面积),夜间值稳定,但夏季白天强度显著增强。(3) Rare、Patchy和Transitional型与SUHII呈正相关(r = 0.13 ~ 0.60),而Dominant、Interior和unchanged型与SUHII呈负相关(r = -0.03 ~ -0.15)。至关重要的是,当完整/内部覆盖超过40%时,它们的冷却效果表现出非线性增强。相反,较高的Patchy/Rare比例加重了SUHII。(4)斑片对昼夜SUHII的贡献最大(白天56.47%,夜间51.59%)。核心区和中部以高度破碎型为主(Rare + Patchy > 68.45%),扩展区以过渡型为主。本研究揭示了BGL破碎化对城市热岛的影响机制,为通过景观优化缓解城市热岛提供参考。
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引用次数: 0
Driving factors of summer diurnal land surface temperature in built-up blocks and planning support tool: A case from four Bohai Rim cities 建成区夏季地表日温驱动因素及规划支持工具——以环渤海四市为例
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-21 DOI: 10.1016/j.scs.2026.107170
Jun Zhao , Fei Guo , Mingxuan Luo , Hongchi Zhang
The relationship between urban spatial structure and thermal environment has been extensively investigated, with substantial progress in geographic coverage and the number of case cities. However, cross-city analyses of nonlinear diurnal thermal environment responses to built-up environment indicators in temperate and cold coastal cities require further case-based evidence. And the translation of scientific mechanism into actionable planning parameters remains insufficiently explored. In response, this study takes four Bohai Rim coastal cities as cases and employs the urban block as the analysis unit to develop a novel multi-objective optimization framework. By coupling an adaptive Non-dominated Sorting Genetic Algorithm III (NSGA-III) with interpretable eXtreme Gradient Boosting (XGBoost), the developed framework quantifies the drivers of both diurnal land surface temperature (LST) and its diurnal temperature amplitude (DTA), as well as the interactions among key parameters. Based on this, it derives feasible regulatory ranges for key urban planning indices, thereby translating thermal response mechanisms into actionable planning controls. The results indicate pronounced threshold effects in the influence of individual parameters on LST. The main findings are as follows: (1) Aspect ratio (AR), normalized difference vegetation index (NDVI), and normalized difference built-up index (NDBI) exert prominent effects on the DTA; (2) Socio-demographic and other factors exhibit strong interactions with nighttime LST; (3) The planning-support model indicates that urban form by vertical compactness (e.g., high floor area ratio (0.5–4.04), medium-to-high average height (> 12 m)), low building density (0.13–0.26), and open type effectively balance diurnal LST. This study bridges mechanistic analysis with planning practice, offering a scalable decision-support framework for climate-adaptive urban design.
城市空间结构与热环境的关系已得到广泛的研究,在地理覆盖和案例城市数量方面取得了实质性进展。然而,温带和寒冷沿海城市非线性日热环境响应的跨城市分析需要进一步的基于案例的证据。将科学机制转化为可操作的规划参数的探索仍然不足。为此,本研究以四个环渤海沿海城市为例,以城市街区为分析单元,构建了新的多目标优化框架。通过将自适应非主导排序遗传算法(NSGA-III)与可解释的极端梯度增强(XGBoost)相结合,构建的框架量化了日地表温度(LST)及其日温度幅值(DTA)的驱动因素,以及关键参数之间的相互作用。在此基础上推导出关键城市规划指标的可行调控范围,从而将热响应机制转化为可操作的规划控制。结果表明,各参数对地表温度的影响存在明显的阈值效应。结果表明:(1)纵横比(AR)、归一化植被指数(NDVI)和归一化建筑指数(NDBI)对DTA的影响显著;(2)社会人口等因素与夜间地表温度存在较强的相互作用;(3)规划支撑模型表明,垂直紧凑性(高容积率(0.5 ~ 4.04)、中高平均高度(12 m))、低建筑密度(0.13 ~ 0.26)、开放式的城市形态能有效平衡日地表温度。本研究将机制分析与规划实践相结合,为气候适应性城市设计提供了可扩展的决策支持框架。
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引用次数: 0
Decentralized off-grid vehicle-to-building (V2B) operation: A reinforcement learning approach for optimal charge–discharge control of energy storage systems 分散离网车辆对建筑物(V2B)运行:储能系统最优充放电控制的强化学习方法
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-21 DOI: 10.1016/j.scs.2026.107169
Sanghoon Kim, Min Kyu Sim
Recent advances in vehicle-to-everything (V2X) technology position electric-vehicle (EV) batteries as mobile energy-storage systems (ESSs), promising a new paradigm for power supply flexibility. However, prevailing centralized V2X operation scenarios and dynamic compensation schemes offer limited economic incentives for EV owners, hindering large-scale adoption. This study proposes a decentralized V2X scenario that treats EV owners as independent economic agents. It introduces a predetermined discharge tariff set at 70% of the contemporaneous time-of-use (ToU) electricity price, thereby offering clear, ex-ante profit expectations for all participants. Participations in V2X transactions are modeled as a time-dependent Poisson process. Within the proposed framework, we formulate an optimal ESS scheduling problem that minimizes the sum of electricity costs and ESS degradation costs for a commercial building equipped with photovoltaic (PV) generation, stationary ESS, and vehicle-to-building (V2B) interfaces. To solve this problem, we develop a world models-based reinforcement learning framework that performs multi-horizon forecasting of PV output and building load, using these forecasts as states to learn an optimal control policy. Compared with benchmark strategies, the proposed approach achieves a total cost reduction of up to 9.65% and attains near-global performance—within 1.57% of the optimality gap from the ideal strategy derived from perfect foresight data.
车辆到一切(V2X)技术的最新进展将电动汽车(EV)电池定位为移动储能系统(ess),有望为供电灵活性提供新的范例。然而,主流的集中式V2X运营场景和动态补偿方案对电动汽车车主的经济激励有限,阻碍了大规模采用。本研究提出了一个分散的V2X场景,将电动汽车车主视为独立的经济主体。它引入了一个预定的排放电价,设定为同期使用时间(ToU)电价的70%,从而为所有参与者提供了明确的事前利润预期。V2X事务的参与被建模为一个依赖时间的泊松过程。在提出的框架内,我们制定了一个最优的ESS调度问题,该问题最大限度地降低了配备光伏(PV)发电、固定式ESS和车辆到建筑物(V2B)接口的商业建筑的电力成本和ESS退化成本之和。为了解决这个问题,我们开发了一个基于世界模型的强化学习框架,该框架执行光伏输出和建筑负荷的多水平预测,并使用这些预测作为状态来学习最优控制策略。与基准策略相比,该方法的总成本降低幅度高达9.65%,与基于完全预见数据的理想策略相比,其性能接近全局,且与最优性差距在1.57%以内。
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引用次数: 0
A typology of energy scaling in Chinese cities and its implication for sustainable urban transitions 中国城市能源尺度的类型及其对城市可持续转型的启示
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-21 DOI: 10.1016/j.scs.2026.107168
Zhaoping Wu , Xuandi Wang , Yandong Tan , Xu Wu , Kai Fang
Urbanization has driven global urban transition, making urban energy scaling critical for effective energy management. Yet, most studies focused on static scaling between energy use and city size, overlooking their dynamics and typological differences. This study analyzed energy scaling across 324 Chinese cities from 2005 to 2021, exploring both its temporal evolution and variations across seven city types. Using the XGBoost-SHAP model, we further identified key drivers of per capita energy use. Results show that: (1) Urban energy use follows a stable linear scaling (95CI%: 0.83–1.04) across all cities; (2) Service-based and high-tech cities display near-linear scaling (β ∼ 1), while light-industry, pre-industry, and agriculture cities present sublinear scaling (β ∼ 0.85), and energy and heavy-industry cities show the strongest scale effects (β ∼ 2/3); (3) Scaling exponent fell by 12% and 27% in service-based and energy cities, showing inverted U-shapes in high-tech and agriculture cities, and U-shapes in pre- and light-industry cities over time; (4) Per capita GDP and road length emerged as the crucial determinants of energy intensity across all city types; (5) Scaling models predict service-based cities will experience the most substantial increases in both population (24%) and energy use (26%). These findings suggest differentiated policy pathways: service-based and high-tech cities should enhance energy infrastructure and adopt clean energy to offset linear scaling pressures; energy and heavy-industry cities should use scale effects to reduce energy intensity through innovation and low-carbon transition; and agriculture and pre-industry cities need to optimize infrastructure to ensure balanced regional development.
城市化推动了全球城市转型,城市能源规模化对有效的能源管理至关重要。然而,大多数研究集中在能源使用和城市规模之间的静态尺度上,忽视了它们的动态和类型差异。本研究分析了2005年至2021年中国324个城市的能源规模,探讨了其在7种城市类型中的时间演变和变化。使用XGBoost-SHAP模型,我们进一步确定了人均能源使用的关键驱动因素。结果表明:(1)各城市城市能源利用呈稳定的线性增长(95CI%: 0.83 ~ 1.04);(2)服务业和高科技城市表现出近似线性的规模效应(β ~ 1),而轻工业、前工业和农业城市表现出亚线性的规模效应(β ~ 0.85),能源和重工业城市表现出最强的规模效应(β ~ 2/3);③服务业城市和能源城市规模指数随时间的推移分别下降了12%和27%,高新技术城市和农业城市呈倒u型,前工业城市和轻工业城市呈u型;(4)人均GDP和道路长度成为所有类型城市能源强度的关键决定因素;(5)规模模型预测,以服务业为基础的城市将经历人口(24%)和能源使用(26%)的最大幅度增长。研究结果表明:服务业城市和高科技城市应加强能源基础设施建设,采用清洁能源来抵消线性规模压力;能源和重工业城市应利用规模效应,通过创新和低碳转型降低能源强度;农业和前工业城市需要优化基础设施,确保区域均衡发展。
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引用次数: 0
Quantifying emission reductions from new energy vehicle adoption via integrated macro-micro data analysis 通过综合宏观和微观数据分析量化新能源汽车的减排
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-20 DOI: 10.1016/j.scs.2026.107167
Tongtong Shang, Wei Wu, Pan Wu, Xiaoling Luo, Shan Han
The transportation sector is a significant source of global carbon emissions, and widespread adoption of New Energy Vehicles (NEVs) is critical for mitigation. Existing studies, however, rely predominantly on macro-level scenario analyses and life cycle assessments (LCA), often lacking integration with real-world vehicle operation data to quantify the actual emission reduction impacts of growing NEV fleets. This study analyzes over one million traffic monitoring records from Chongqing (2019-2024) to characterize spatiotemporal evolution of urban road carbon emissions. We extract micro-scale travel characteristics based on travel distance and develop a K-ME-XGBoost-LSTM hybrid model to illuminate nonlinear relationships between NEV growth and traffic emissions. The results indicate that road network mileage, NEV penetration rate, travel distance, and travel speed are the primary determinants of emission levels. A critical finding is that significant emission reductions materialize only after NEV penetration exceeds a threshold of approximately 10%. Moreover, the mitigating effect on NOₓ emissions becomes progressively stronger than that on CO as the NEV share increases. Furthermore, within urban core areas, the adoption of NEVs effectively reduces the demand for long-distance travel using fuel-powered vehicles, thereby driving system-wide declines in emissions. Projections for the next five years (2025-2029) indicate that this positive emission reduction trajectory is likely to continue across multiple districts.
交通运输部门是全球碳排放的重要来源,新能源汽车(nev)的广泛采用对减排至关重要。然而,现有的研究主要依赖于宏观层面的情景分析和生命周期评估(LCA),往往缺乏与实际车辆运行数据的整合,以量化不断增长的新能源汽车车队的实际减排影响。本文分析了重庆市100多万份交通监测记录(2019-2024年),以表征城市道路碳排放的时空演变特征。基于出行距离提取微尺度出行特征,建立K-ME-XGBoost-LSTM混合模型,揭示新能源汽车增长与交通排放之间的非线性关系。结果表明,路网里程、新能源汽车普及率、行驶距离和行驶速度是影响排放水平的主要因素。一个重要的发现是,只有在新能源汽车普及率超过10%左右的阈值后,才能实现显著的减排。此外,随着新能源汽车份额的增加,对NOₓ排放的缓解作用逐渐强于对CO排放的缓解作用。此外,在城市核心区,新能源汽车的采用有效地减少了使用燃料动力汽车进行长途旅行的需求,从而推动了全系统排放的下降。对未来五年(2025-2029)的预测表明,这种积极的减排轨迹可能会在多个地区持续下去。
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引用次数: 0
Analyzing the impact of urban morphology on urban land surface temperature from the perspective of spatial configuration and explainable machine learning: A case study of seven cities 空间配置与可解释性机器学习视角下城市形态对地表温度的影响分析——以7个城市为例
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-15 DOI: 10.1016/j.scs.2026.107165
Bo Wan, Ningjie Shen, Haijian Zhang, Qiang Sheng
Urbanization has led to frequent heatwaves and urban heat islands (UHIs). While the impact of building density and other factors on land surface temperature (LST) has been studied, the mechanisms of spatial configuration remain unclear. We conducted a comparative study across seven cities (Beijing, Hangzhou, Nanjing, Shanghai, Wuhan, Zhengzhou and Changsha), integrating summer LST data with multidimensional morphological indicators. We applied both linear and machine learning models, and used SHAP (Shapley Additive exPlanations) to interpret the contribution and thresholds of variables. The results show that incorporating spatial configuration significantly improves explanatory power, and machine learning outperforms linear models. High-intensity development generally increases LST, while vegetation and mixed land use reduce LST, both exhibiting threshold effects: tree canopy cover beyond approximately 15% shows diminishing marginal cooling effects, and proximity to water bodies within 300 meters creates significant cooling (cold island) effects. Spatial configuration has a critical and nonlinear influence on LST, offering an evidence base for multidimensional, synergistic heat island mitigation and urban planning decisions.
城市化导致了频繁的热浪和城市热岛现象。虽然研究了建筑密度等因素对地表温度的影响,但其空间分布机制尚不清楚。我们对北京、杭州、南京、上海、武汉、郑州和长沙等7个城市进行了比较研究,将夏季地表温度数据与多维形态指标相结合。我们同时应用线性和机器学习模型,并使用Shapley加性解释(Shapley Additive exPlanations)来解释变量的贡献和阈值。结果表明,纳入空间配置显著提高了解释力,机器学习优于线性模型。高强度开发通常会增加地表温度,而植被和混合土地利用会降低地表温度,两者都表现出阈值效应:树冠覆盖率超过约15%时,边际冷却效应减弱,300米内靠近水体会产生显著的冷却(冷岛)效应。空间格局对地表温度具有关键的非线性影响,为多维、协同的热岛缓解和城市规划决策提供了证据基础。
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引用次数: 0
Discovering the causal mechanism of day-night extreme heat driven by 2D and 3D urban landscape changes: a case study of Wuhan, China 二维和三维城市景观变化驱动的昼夜极端高温成因机制研究——以武汉市为例
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-15 DOI: 10.1016/j.scs.2026.107163
Yingqiang Zhong , Shaochun Li , Xinmeng Zhou , Xun Liang , Qingfeng Guan
The increasing frequency of extreme heat events poses serious challenges to public health and urban sustainability. Urban expansion is a key driver of extreme heat, yet the distinct mechanisms behind daytime and nighttime heat remain underexplored. This study proposes a multi-scale analytical framework to examine how 2D and 3D urban landscape changes influence extreme heat intensity (EHI), using both macro-scale (Spatial Difference-in-Differences) and finer-scale (Causal Forest) approaches. Two key findings emerge: 1) at the macro scale, urbanization significantly intensifies EHI, demonstrating its detrimental impact on thermal environments; 2) at the finer scale, heterogeneity analysis reveals that the landscape changes of building, impervious surface, cropland, and water bodies affect EHI in varied and localized ways. The results indicate the need for differentiated daytime and nighttime heat mitigation strategies, including enhancing blue-green infrastructure, optimizing urban landscape, and preserving cropland–water spatial balance to improve urban thermal resilience.
极端高温事件日益频繁,对公共卫生和城市可持续性构成严重挑战。城市扩张是极端高温的主要驱动因素,但白天和夜间高温背后的独特机制仍未得到充分探索。本研究提出了一个多尺度的分析框架,利用宏观尺度(空间差中差)和精细尺度(因果森林)方法来研究二维和三维城市景观变化如何影响极端热强度(EHI)。主要发现如下:1)宏观尺度上,城市化显著加剧了EHI,表明其对热环境的不利影响;(2)在精细尺度上,建筑、不透水地表、农田和水体的景观变化对EHI的影响具有局部性和差异性。结果表明,需要采取差异化的白天和夜间热缓解策略,包括加强蓝绿基础设施,优化城市景观,保持农田-水空间平衡,以提高城市热弹性。
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引用次数: 0
Towards sustainable social housing: An integrative life cycle and multi-criteria approach 迈向可持续社会住房:综合生命周期和多标准方法
IF 12 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2026-01-15 DOI: 10.1016/j.scs.2026.107164
Ximena Luque Castillo , Lorena Yepes-Bellver , Victor Yepes
Structural systems for social housing must address pressing challenges of affordability, rapid execution, and long-term sustainability. However, choosing the most appropriate alternative requires balancing economic, environmental, social, and technical dimensions under uncertainty. This study applies a hybrid multi-criteria decision-making (MCDM) framework that combines the Best–Worst Method (BWM), fuzzy Decision-Making Trial and Evaluation Laboratory (DEMATEL), and the Measurement of Alternatives and Ranking according to COmpromise Solution (MARCOS) to evaluate five construction systems: Light Steel Frame (LSF), bolt-connected sandwich panels (LBSPS), reinforced concrete walls (RCW), monolithic reinforced concrete (RCF-M), and cast-in-place reinforced concrete (RCF-CP). The framework combines life cycle-based assessments—LCA, LCC, and SLCA— with causal analysis to capture interdependencies among criteria and generate transparent sustainability rankings. Results consistently position LSF as the top performing alternative, reflecting its balance between efficiency, durability, and reduced maintenance. Social aspects collectively accounted for nearly 40% of the total weight, surpassing economic and environmental dimensions, highlighting the central role of labor conditions, community impacts, and functionality in sustainable housing. Sensitivity analyses demonstrated stable rankings and validated the hybrid framework under alternative MCDM methods and diverse scenario perturbations. The findings provide actionable insights for housing policy in developing contexts, where industrialized systems and participatory evaluation processes can jointly advance resource efficiency, affordability, and social well-being.
社会住房的结构体系必须解决可负担性、快速执行和长期可持续性等紧迫挑战。然而,选择最合适的替代方案需要在不确定性下平衡经济、环境、社会和技术层面。本研究采用混合多准则决策(MCDM)框架,结合最佳最差方法(BWM),模糊决策试验和评估实验室(DEMATEL),以及根据折衷方案(MARCOS)的替代方案测量和排名(MARCOS)来评估五种建筑体系:轻钢框架(LSF),螺栓连接夹芯板(LBSPS),钢筋混凝土墙(RCW),整体钢筋混凝土(RCF-M)和现浇钢筋混凝土(RCF-CP)。该框架将基于生命周期的评估(lca、LCC和SLCA)与因果分析相结合,以捕捉标准之间的相互依赖关系,并生成透明的可持续性排名。结果一致表明LSF是性能最好的替代方案,反映了它在效率、耐用性和减少维护之间的平衡。社会方面合计占总权重的近40%,超过了经济和环境方面,突出了劳动条件、社区影响和功能在可持续住房中的核心作用。敏感性分析显示了稳定的排名,并验证了混合框架在不同的MCDM方法和不同的情景扰动下的有效性。研究结果为发展中国家的住房政策提供了可行的见解,在发展中国家,工业化体系和参与式评估过程可以共同提高资源效率、可负担性和社会福祉。
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Sustainable Cities and Society
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