Gondwana Research最新文献

{"title":"EnMap hyperspectral data in geological investigations: Evaluation for lithological and hydrothermal alteration mapping in Neoproterozoic rocks","authors":"Ali Shebl ,&nbsp;Mahmoud Abdellatif ,&nbsp;Dávid Abriha ,&nbsp;Maher Dawoud ,&nbsp;Mosaad Ali Hussein Ali ,&nbsp;Abdelhalim S. Mahmoud ,&nbsp;Ferenc Kristály ,&nbsp;Árpád Csámer","doi":"10.1016/j.gr.2025.03.014","DOIUrl":"10.1016/j.gr.2025.03.014","url":null,"abstract":"<div><div>This study conducted a rigorous evaluation of Environmental Mapping and Analysis Program (EnMap) data in geological applications, specifically focusing on lithological and hydrothermal alteration mapping. This research represents one of the earliest attempts to apply EnMap data for such purposes, and the first to integrate EnMap and airborne geophysical data for geological mapping over the entire Arabian Nubian Shield. To ensure a comprehensive appraisal, we selected a study area characterized by complex Precambrian rocks, including igneous, metamorphic, and sedimentary formations, alongside structural intricacies and hydrothermal activities. Our study utilized various image-processing techniques, including principal component analysis (PCA), Uniform Manifold Approximation and Projection (UMAP), Sequential Maximum Angle Convex Cone (SMACC) endmember analysis, and spectral resampling. These techniques successfully discriminated ophiolitic serpentinite, volcaniclastic metasediments (as part of the ophiolitic mélange matrix), metavolcanics, metagabbro-diorite, <em>syn</em>-orogenic granite, post-orogenic granite, Nubian sandstone, and Wadi deposits. Additionally, they revealed the prevalence of OH-bearing minerals and iron oxides as the primary hydrothermal alteration products within the study area. By correlating the findings with USGS spectral libraries and airborne geophysical data, we determined the efficacy of EnMap data in these applications. Our findings were further validated through multiscale observations, field investigations, petrographic analyses, and scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDX). In addition to endorsing the use of the UMAP algorithm and EnMap data for future applications, this study highlights key alteration zones that could serve as potential targets for future gold exploration, alongside insights into bauxite ore occurrences.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 91-124"},"PeriodicalIF":7.2,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate policy uncertainty and greenhouse gas emissions in G7 countries: Policy recommendations for environmental sustainability","authors":"Shabir Mohsin Hashmi ,&nbsp;Li Rong ,&nbsp;Daniel Balsalobre-Lorente ,&nbsp;Qasim Raza Syed","doi":"10.1016/j.gr.2025.03.007","DOIUrl":"10.1016/j.gr.2025.03.007","url":null,"abstract":"<div><div>Since the inception of the 21st century, climate policy uncertainty (CPU) has been rising in G7 countries, which can impact economic and environmental sustainability. Therefore, the present empirical study explores the influence of CPU on greenhouse gas (GHG) emissions in G7 countries. The results from the method of moment quantile regression delineate that CPU upsurges GHG emissions at the middle and upper quantiles, indicating that CPU contributes to GHG emissions if emissions are at their average (mean) level or above. The findings from robustness analysis are also in line with baseline empirical outcomes. The findings recommend initiating measures to shrink the CPU. For instance, climate policies at the federal and state levels should be in line and should be announced for a long period.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 214-225"},"PeriodicalIF":7.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A modeling framework for assessing the future changes in the occurrence of extreme rain-induced landslides","authors":"Xinlong Zhang ,&nbsp;Qigen Lin ,&nbsp;Manhoi Lok ,&nbsp;Taosheng Huang ,&nbsp;Xuan Yu ,&nbsp;Weiping Wang ,&nbsp;Ping Shen","doi":"10.1016/j.gr.2025.03.009","DOIUrl":"10.1016/j.gr.2025.03.009","url":null,"abstract":"<div><div>Landslides triggered by extreme rainfall pose a serious threat to lives and livelihoods under climate change. However, the influence of climate change on the frequency and intensity of extreme rainfall and the resulting landslide hazard remains insufficiently investigated. Here we develop a novel framework to assess how future changes in extreme rainfall affect landslide occurrence, using a comprehensive dataset of landslide events in Guangdong province, China. We apply the XGBoost machine learning algorithm with a correction by feature interaction constraints to model landslide hazards based on various predisposing and triggering factors. We use a new extreme rainfall correction method to account for the global climate model-projected changes in rainfall patterns under different emission scenarios, based on which we perform a multi-model ensemble analysis to reduce the uncertainty of climate projections. We find that regions with high landslide probability are strongly associated with intense rainfall events, especially in steep and erodible river valleys. Our projections show that under a high-emission scenario, extreme rainfall events and landslide hazards will increase substantially in Guangdong, highlighting the urgency of adaptation of climate change and risk management. Our framework provides a valuable tool for understanding the interactions between climate change, extreme rainfall, and landslide occurrence, and for developing effective mitigation strategies.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 52-63"},"PeriodicalIF":7.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topographic stress proxy as a new causative factor in landslide susceptibility mapping","authors":"Weilin Kong ,&nbsp;Ruilong Wei ,&nbsp;Chunhao Wu ,&nbsp;Peng Cui ,&nbsp;Guoqing Chen ,&nbsp;Yifan Zhang ,&nbsp;Dongchen Li ,&nbsp;Chenxiao Tang","doi":"10.1016/j.gr.2025.03.010","DOIUrl":"10.1016/j.gr.2025.03.010","url":null,"abstract":"<div><div>On the Tibetan Plateau, the frequency of bedrock landslides has significantly increased due to high altitude, high seismic intensity, and high topographic stress, posing severe threats to human safety and infrastructure. Landslide susceptibility assessment (LSA) is an effective tool for preventing and managing landslide hazards. Although the extent of slope failure depends on landscape-scale patterns of bedrock fracturing induced by topographic stress, current LSA models rarely incorporate this factor and fail to adequately link the causative factors considered with the mechanisms of landslide formation. This study introduces a new factor—topographic stress—into existing LSA models to capture the mechanisms underlying landslide formation better. Several popular machine learning models (LGR, MLP, SVM, and RF) were employed to investigate the impact of topographic stress proxies on landslide susceptibility assessments. Results reveal that stress proxies outperform conventional factors across models, with FP recalibrating susceptibility distributions by reducing High/Very High-risk zones by 3.1 ∼ 9.1 % and expanding Low/Very Low areas by 5.3 ∼ 14.9 % in both coseismic and pre-seismic scenarios. Model performance metrics significantly improved: overall accuracy increased by 3 ∼ 6 %, recall by 0.5 ∼ 1.6 %, and AUC values by 2 ∼ 4 %, with RF_FP and SVM_FP achieving peak discriminative power (AUC: 0.898 and 0.858). The topographic stress proxy FP bridges geomechanical processes (stress-fracture-weathering interactions) and data-driven modeling, identifying fracture zones that precondition slopes for failure—particularly near active faults where stress accumulation elevates landslide risk by amplifying fracture density and strain localization. This framework enables proactive hazard mitigation in tectonically active orogens by prioritizing physics-informed stress preconditioning over trigger-centric approaches. Future applications should leverage stress proxies to decode landscape-scale fracture evolution and cascading slope destabilization mechanisms, advancing toward predictive, process-based landslide susceptibility mapping.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 32-51"},"PeriodicalIF":7.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tectonic reworking in the Arabian-Nubian Shield: An analysis of the textural record of the exhumation of the Meatiq Gneiss dome (Egypt)","authors":"Mahmoud K. Alawy ,&nbsp;Juan Gómez-Barreiro ,&nbsp;Zakaria Hamimi ,&nbsp;Abdel-Kader M. Moghazi ,&nbsp;Mohammed Hassan Younis ,&nbsp;Inés Puente Orench ,&nbsp;Santos Barrios Sánchez","doi":"10.1016/j.gr.2025.03.008","DOIUrl":"10.1016/j.gr.2025.03.008","url":null,"abstract":"<div><div>The construction of the northern section of the East Africa Orogen (EAO) is a subject of debate. The extensive activity of late orogenic wrench tectonics, recognized in the Arabian Nubian Shield (ANS), dismembered and obscured the accretionary and collisional record. We have investigated the Meatiq Gneiss dome (MGD), in the Central Eastern Desert (CED, Egypt) where compressional, extensional and transcurrent structures converge. Three structural domains have been identified: Meatiq Dome (MDSZ), Murr (MSZ) and Atalla (ASZ) shear zones. We have conducted neutron diffraction quantitative texture analysis on mylonites, to investigate deformation conditions at different structural levels of the MGD and provide new evidence on its evolution and discuss regional implications for the CED. Results indicate that the MGD is an individual fault-related gneiss dome, bounded by a major extensional detachment with ∼ NW-SE kinematics (MDSZ). Textural record documents tectonic denudation under deformation conditions from 750° to 350 °C, compatible with a fast isothermal exhumation from 620-580 Ma, as supported by existing age and metamorphic data. Field investigation suggest that the NW-SE elongated geometry of the dome is not related to the extensional activity, but with a coeval NE-SW shortening component. Large wrench shear zones (MSZ and ASZ) postdate this architecture and accommodate transpressional strain under low T conditions (&lt;400 °C). Given that the activity of the MDSZ was contemporary with the main collisional phase of the formation of the Gondwana supercontinent in the Late Neoproterozoic, is postulated that the Meatiq Gneiss Dome exhumation was the result of a <em>syn</em>-collisional collapse, which was triggered by gravitational instabilities, and modulated by coeval contraction, without a genetic relation with late strike-slip tectonics (e.g., Najd fault system). MGD tectonothermal evolution indicates that the lithosphere of this EAO segment has followed a complex tectonic reworking where large-scale boundaries like the MDSZ and played a significant rheological role.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 64-90"},"PeriodicalIF":7.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ancient depths: Unprecedented completeness of mesophotic coral-fish ecosystem from the Devonian of Eastern Gondwana","authors":"Mikołaj K. Zapalski ,&nbsp;Błażej Berkowski ,&nbsp;Stanisław Skompski ,&nbsp;John W. Pickett ,&nbsp;Gavin C. Young","doi":"10.1016/j.gr.2025.03.006","DOIUrl":"10.1016/j.gr.2025.03.006","url":null,"abstract":"<div><div>Modern mesophotic coral ecosystems (MCEs) are built by zooxanthellate scleractinian corals anatomically adapted (platy growth) to light harvesting at greater depths. Ecosystems of this kind date back to the Silurian (∼430 Ma) and in the Palaeozoic were built by now-extinct tabulate corals. Palaeozoic MCEs were recognized for the first time quite recently, and are still poorly known – only from isolated occurrences on the tropical shelves of palaeocontinents of Laurussia (Silurian, Middle Devonian), with a single example from Western Gondwana (Morocco, Middle Devonian). This study reveals a Lower Devonian (Emsian, ∼395 Ma) coral biostrome at Wee Jasper (New South Wales, Australia; Eastern Gondwana). The area has long been noted for its diverse, well- preserved fossil fish fauna, and the investigated beds, besides corals, are associated with many fish remains, mainly armoured fishes – placoderms. With about 70 species identified so far (placoderms, acanthodians, osteichthyans) this is the most diverse Devonian fish assemblage known to date. We identified a platy tabulate coral (a growth form adapted to low-light conditions) assemblage. Numerous anatomical features of corals (e.g., growth forms, corallite sizes) and fish (e.g., teeth adaptations for herbivory or durophagy) are directly comparable with modern taxa. Along with sedimentological data, the entire assemblage can be interpreted as a MCE. The description of the Wee Jasper MCE highlights numerous functional similarities between Palaeozoic and Recent mesophotic ecosystems, despite major taxonomical differences. Moreover, it suggests a broad distribution of MCEs on tropical shelves of Gondwana as early as the Early Devonian, evidencing proliferation of photosymbiotic, habitat-forming tabulate corals during the reef acme in the middle Palaeozoic. We propose the Wee Jasper MCE as the most complete Palaeozoic coral-fish ecosystem known to date.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 252-261"},"PeriodicalIF":7.2,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upper Jurassic radiolarian assemblages and chert geochemistry of the Shiquanhe ophiolite, NW Tibet: Implications for the evolution of the Meso–Tethyan ocean","authors":"Xiaohui Cui ,&nbsp;Yichun Zhang ,&nbsp;Xin Li ,&nbsp;Jonathan C. Aitchison ,&nbsp;Mei-Fu Zhou ,&nbsp;Qinggao Zeng ,&nbsp;Guangying Ren ,&nbsp;Hui Luo","doi":"10.1016/j.gr.2025.03.005","DOIUrl":"10.1016/j.gr.2025.03.005","url":null,"abstract":"<div><div>Evolution of the Meso-Tethyan Ocean (MTO) is a contentious issue. Ophiolites in the Bangong–Nujiang Suture Zone, Tibet, are important for deciphering the evolution of this ocean. Well-preserved Upper Jurassic (Tithonian) radiolarian assemblages have been recovered from bedded cherts in the Shiquanhe ophiolite in the western Shiquanhe–Namuco ophiolitic mélange zone (SNMZ). They include 83 species belonging to 51 genera, representing the most diverse radiolarian fauna yet documented in ophiolites along this suture zone. Together with radiometric ages, these assemblages indicate that the Shiquanhe ophiolite is no younger than late Tithonian. La_N/Ce_N and Ce/Ce* ratios of cherts are supportive of deposition in a mature oceanic basin close to a continental margin. Network analysis reveals that the radiolarian fauna is similar to other coeval assemblages across the entire Tethyan realm. Our study suggests that the ocean recorded by the ophiolite of the SNMZ existed from at least the Late Jurassic and developed into a mature oceanic basin with a marine connection to the Neo-Tethyan Ocean, rather than as a short-lived embryonic seaway as previously inferred.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 166-184"},"PeriodicalIF":7.2,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A vertical reverse zoning in the Kunshan W-Mo-Cu deposit, South China: Insights from mineral paragenesis, zircon geochemistry and S-Pb-O isotopes","authors":"Qingqing Yin ,&nbsp;Juxing Tang ,&nbsp;Qiuming Pei ,&nbsp;Inna Safonova ,&nbsp;Xinkui Xiang ,&nbsp;Jingjing Dai ,&nbsp;Aorigele Zhou ,&nbsp;Bin Lin ,&nbsp;Yumin Xu ,&nbsp;Zhendong Yu ,&nbsp;Jinling Xie ,&nbsp;Ruihua Lin ,&nbsp;Bo Peng ,&nbsp;Liqiang Wang","doi":"10.1016/j.gr.2025.03.004","DOIUrl":"10.1016/j.gr.2025.03.004","url":null,"abstract":"<div><div>The identification of reverse zoning in tungsten deposits is crucial, as it represents an atypical distribution of orebodies that may affect exploration and mining strategies. However, the exploration of such deposits remains challengeable due to uncertainties regarding the parageneses of polymetallic mineralization, the upper temperature limit of the formation of wolframite, and the evolutionary path of fluids, all of which influence the patterns of the distribution of ore mineralization. Recently, we have found that the Kunshan W-Mo-Cu deposit situated within the world-class Dahutang tungsten ore district in the middle segment of the Jiangnan Orogen, South China, is special for the vertical reverse zoning of W-Mo-Cu paragenetic mineralization. To trace the evolutionary paths of magmatic and deuteric hydrothermal fluids, estimate the redox conditions of magma crystallization, and determine the sources and temperatures of ore-forming fluids, we conducted a comprehensive study of the geochemical compositions of zircons and the S-Pb-O isotope systematics of quartz, wolframite and sulfide. We investigated the relationships between trace elements, oxygen fugacity (ƒ_O2) and W-Mo-Cu parageneses, as well as the degree of contamination of parental magma by overlying metasediments. Our results indicate that the paragenetic W-Mo-Cu mineralization was triggered by a moderately reduced initial magma (ΔFMQ = −0.55 ∼ -0.20) containing 41 % <em>meta</em>-igneous-dominated component (δ¹⁸O_magma = +9.2 ‰) and metasediments (δ¹⁸O_WR = +12.6 ‰). The vertical reverse zoning is characterized by proximal Cu mineralization located beneath the distal high-temperature (394 °C) tungsten mineralization zone and was formed by volatile-rich fluids within an open metallogenic system. We argue that the exploration of deposits with vertical reverse zoning should continue, despite the decrease in the grade of tungsten ore with depth, while the content of metal sulfides may likewise increase.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 236-251"},"PeriodicalIF":7.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conodont diversity, biostratigraphy, and environmental dynamics: Unravelling the Smithian-Spathian transition at Guryul Ravine, Kashmir","authors":"Marc Leu ,&nbsp;Morgane Brosse ,&nbsp;Aymon Baud ,&nbsp;Ghulam Bhat ,&nbsp;Torsten Vennemann ,&nbsp;Hugo Bucher ,&nbsp;Nicolas Goudemand","doi":"10.1016/j.gr.2025.02.028","DOIUrl":"10.1016/j.gr.2025.02.028","url":null,"abstract":"<div><div>The late Smithian and Smithian-Spathian boundary (SSB) witnessed significant conodont extinction approximately 2.7 million years after the major Permian-Triassic boundary extinction. This study offers a detailed examination of the Smithian-Spathian transition at the Guryul Ravine section in the Srinagar district, Kashmir, focusing on conodonts and δ¹³C_carb values. The section features an unprecedented conodont taxonomic richness, with 53 species from 17 genera, including three newly formalized species: <em>Neospathodus aristatus</em> n. sp., <em>Neospathodus guryulensis</em> n. sp. and <em>Borinella</em>? <em>prima</em> n. sp. Additionally, <em>Borinella</em> ex gr. <em>buurensis</em> and <em>Scythogondolella</em> ex gr. <em>milleri</em> are subdivided into multiple morphotypes, facilitating a refined biochronological scheme.</div><div>A high-resolution δ¹³C_carb record spanning the Early Triassic captures global carbon isotope excursions. The integration of δ¹³C_carb with conodont biostratigraphy enhances global correlation of the Smithian-Spathian transition. The late Smithian conodont extinction aligns with a globally observed positive δ¹³C_carb excursion, reaching an exceptional value of + 12 ‰, likely of diagenetic origin.</div><div>This study proposes a new conodont biochronological framework based on the Unitary Association Method (UAM). Placing the SSB between the extinction climax and re-diversification onset, the framework relies on a rich conodont collection from Guryul Ravine, Kashmir, and a comprehensive reassessment of conodont data from 19 other sections along the northern Gondwana margin. The resulting 16 Unitary Association Zones (UAZs) are cross-referenced with lithological, chemostratigraphical (δ¹³C_carb), and ammonoid markers, establishing an unprecedentedly robust basis for defining the SSB. The proposed boundary is within UAZ₈ but allows for future refinements.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 152-184"},"PeriodicalIF":7.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards urban low-carbon industrial development through air pollution reduction: A spatiotemporal synergy perspective","authors":"Kang Gao","doi":"10.1016/j.gr.2025.02.030","DOIUrl":"10.1016/j.gr.2025.02.030","url":null,"abstract":"<div><div>The consistency of air pollutant and carbon dioxide emissions in urban spaces raises a critical topic for sustainable urban development: Whether efforts to reduce air pollution (APR) can lead to a decrease in carbon emissions and enhance productivity, thereby facilitating the transition of urban industries to low-carbon development. This study amalgamates diverse datasets, including socio-economic indicators and satellite-derived information, to investigate the spatiotemporal synergy between APR and industrial total factor carbon productivity (ITFCP) in 280 cities of China. Our initial findings indicate that both APR and ITFCP in Chinese cities are on an upward trajectory, exhibiting a strong positive long-term dynamic correlation, and the APR’s positive influence on ITFCP shows a delayed effect. Additionally, the coupling coordination degree (CCD) is intensifying, with an average annual growth rate of 1.50%. Furthermore, we identify a significant local and spatial synergies between APR and ITFCP. Beijing, Tianjin, and Chongqing have entered a stage of intermediate coupling coordination ((0.6,0.8]). However, 61.4 % of the 280 cities are still in the stage of mild disequilibrium ((0.2,0.4]). Although the CCD has seen an overall upward trend across all regions, there is a potential risk of a downward shift in the western cities. The complex network structure of APR and ITFCP radiates from key urban clusters such as the Yangtze River Delta, the Pearl River Delta, and the Beijing-Tianjin-Hebei, creating a broad radiation effect. The CCD exhibits positive spatial correlations, with high-value areas concentrated along the eastern coastal cities and lower values in inland cities. In conclusion, the strong consistency and high association of APR and ITFCP in both space and time suggest that APR can indeed synergistically reduce carbon emissions and boost productivity, making it a viable strategy for advancing the urban industry’s low-carbon development.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 212-235"},"PeriodicalIF":7.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}