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Green transformation paths of resource-based cities in China from the configuration perspective
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作者 GONG Qunxi 《Regional Sustainability》 2024年第3期40-53,共14页
Green transformation is an unavoidable choice for resource-based cities(RBCs)that face resource depletion and environmental pollution.Existing research has focused primarily on specific RBCs,making it challenging to a... Green transformation is an unavoidable choice for resource-based cities(RBCs)that face resource depletion and environmental pollution.Existing research has focused primarily on specific RBCs,making it challenging to apply green transformation strategies universally across cities.The fuzzy set qualitative comparative analysis(fsQCA)is a combination of qualitative and quantitative analyses that can handle multiple concurrent causality problems and determine how different conditions combine into configurations and generate an outcome.Thus,to address this gap,in this study,we established a research framework for green transformation and utilized the fsQCA to examine the configurations of 113 RBCs in China.By incorporating the element of time,this study explored the dynamic evolution of solutions in 2013,2016,and 2019.The main findings indicate that individual elements do not constitute the necessary conditions for improving the green transformation efficiency(GTE),and the systematic combination of multiple conditions is an effective path for realizing the improvement of the GTE in RBCs.Green transformation paths of RBCs exhibit the same destination through different paths.Additionally,the combination of system environment elements and system structure elements is both complementary and alternative.Differences in RBCs have led to various factor combinations and development paths,but there are some similarities in the key elements of the factor combinations at different stages.Economic environment,government support,and technological innovation are key factors that universally enhance the GTE in RBCs.These insights can assist city managers in formulating policies to drive green transformation and contribute to a better theoretical understanding of green transformation paths in RBCs. 展开更多
关键词 Green transformation path Green transformation efficiency Resource-based cities Configuration analysis Fuzzy set qualitative comparative analysis(fsQCA)
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Research on Landscape Ecology Mode of New Resources-based Cities—A Case Study of Yulin City of Shaanxi Province in China 被引量:1
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作者 方松林 王军 《Journal of Landscape Research》 2012年第1期32-34,共3页
Based on the overall understanding of new cities developing based on resources,by taking Yulin City of Shaanxi Province for example and combining with relevant statistical data,main problems existing in resources deve... Based on the overall understanding of new cities developing based on resources,by taking Yulin City of Shaanxi Province for example and combining with relevant statistical data,main problems existing in resources development have been pointed out,covering simple resources industrial structure and serious wastes in resources development;insufficient intensive processing of products and low level of resources integrated utilization;and deteriorative regional eco-environment.On this basis,a new mode of landscape ecology of resource-based cities have been proposed,emphasizing constructing new green energy industrial development mode from the perspective of microscopic view;ecological industrial park of circular economy from the perspective of mesoscopic view;and the overall ecological recovery mode of the mining area from the perspective of macroscopic view.It hopes to give a vital inspiration to the sustainable development of new resources-based cities. 展开更多
关键词 New resources-based cities Energy ECOLOGICAL LANDSCAPE MODE
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Geographical Space Development Zone Classification:An Essential Guide for Transformation of Mountain Resource Cities 被引量:1
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作者 ZHANG Jifei DENG Wei LIU Shaoquan 《Chinese Geographical Science》 SCIE CSCD 2015年第3期361-374,共14页
Sustainable development of mountain areas and resource cities has been a significant issue worldwide. Transformation of mountain resource cities is facing tremendous difficulties. In the context of National Major Func... Sustainable development of mountain areas and resource cities has been a significant issue worldwide. Transformation of mountain resource cities is facing tremendous difficulties. In the context of National Major Function-oriented Zone Planning raised to a national strategic level in China, it is important to effectively implement the planning by studying geographical space development zone classification of prefecture- and county-level cities based on their major function orientation. This research is even more critical for the transformation of mountain resource cities. In this study, we evaluated geographical space development suitability, and classified geographical space development zones for Dongchuan Distric in Kunming City of Yunan Province, China, a typical mountain resource city. A quantitative grid-based evaluation was conducted using key-factor identification and restrictive-supportive comprehensive index determinati based on a geographic information system framework with different source data. The results included a classification of geographical space of Dongchuan into five types: the prohibited development zone, the inappropriate development zone, the controlled development zone, the moderate development zone and the preferential development zone. The distribution characteristics of geographical space development zones showed that the proportion of the prohibited development zone is the highest, while that of the other four development zones is comparatively lower and significantly fragmented. The geographical space development suitability is greatly controlled by the geomorphic pattern. Although Dongchuan is extremely restrained in terms of suitable geographical space for industrialization and urbanization, it still has the certain preferential and moderate development zones with an area of 207.81 km2 with large parts being concentrated and contiguous, which makes these areas the most favorable for development. Only by adapting to this reality and implementing centralized development strategy in the regions with higher suitability may Dongchuan achieve smooth transformation from expansion mode to compact mode and its sustainable development capacity may be improved. Suggestions with an angle of industrial and spatial development pattern were put forward for the transformation of the city in future. 展开更多
关键词 geographical space development suitability mountain resource city transformation of resource cities
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Trends of the Transformation of Urban Form in Arab Cities with Specific Reference to AI-Khobar
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作者 Murat Cetin 《Journal of Civil Engineering and Architecture》 2010年第10期51-58,共8页
The paper analyzes the current trends of urban transformation and delineates an underlying rationale which enables the comprehension of the current character of Arab city with particular reference to Al-Khobar. The ci... The paper analyzes the current trends of urban transformation and delineates an underlying rationale which enables the comprehension of the current character of Arab city with particular reference to Al-Khobar. The city form is subjected to a re-reading arguments of which are based on critical interpretation of the mechaitisms of urban morphology in relation not only to the impacts of global economy and building boom but also to the means of perception of urban space by different strata of the urban realm. Thus, urban morphology of the city is studied as a medium which manifests a dissociation, and thus duality, between social structure and its physical container. The paper further argues that uncritical import of urban and architectural typologies seem to create a peculiar type of urban-architectural forgery that is usually reduced to skin-deep facade mimicry. Particularly, solo performances of shiny high-rise buildings and sharp contrasts of street fronts between main arteries and back streets depict impressions of fragmentation and segregation. The emerging urban-scape that can be associated with the cultural and economic leap in Arab regions today is critically evaluated. Thus, the paper proposes judicious and critical planning policy instead of direct import of global urban-architectural typologies. 展开更多
关键词 Urban transformation Arab city morphology DUALITY CONSERVATION public realm.
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Tanzimat Reforms and Urban Transformations in Ottoman Port-Cities
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作者 Elena Samourkasidou Dimitris Kalergis 《Sociology Study》 2021年第6期259-272,共14页
The 19th century was a milestone for urban planning history of the Eastern Mediterranean region since the typology of the Ottoman city was reformed,more or less abruptly,by strong Western European influences as a cons... The 19th century was a milestone for urban planning history of the Eastern Mediterranean region since the typology of the Ottoman city was reformed,more or less abruptly,by strong Western European influences as a consequence of broader political,economic,and social transformations.From the very beginning of the 19th century,the Ottoman state confronted significant administrative issues that raised in the importance to institutionalise reforms over a long period of time,representing the foundation of later urban“modernisation reforms”.These challenges of the Ottoman cities at that period coincided with one crucial reform framework known as“Tanzimat”,which reflected the social willingness to inherit elements of European culture,technological innovations,and lifestyle.According to that direction,urban space was considered as a workshop of planning regulations and reforms adopting principles of contemporary,at that time,European urban planning,mostly applied in England and France.These social and urban reforms established by the Ottoman state marked the first attempt to relate Ottoman cities with European planning,urban infrastructures,building regulations,and public administration.During the period of Tanzimat(1839-1876),the economic role and impact of cities was strengthened reflecting a rising urbanisation of population.This article highlights this“Europeanisation”of Ottoman cities at the period of Tanzimat by investigating five case-study cities:Smyrna,Beirut,Alexandria,Thessaloniki,and Constantinople.All these cities were important ports-hubs of the Eastern Mediterranean whose urban development since the 1840s was a direct consequence of the modernisation reforms and,in general,an increase of European influence.These urban reforms,like in many European cities,included new transport infrastructures and communication networks,public services(water,gas,tramways,etc.),health and education,and new industrial patterns. 展开更多
关键词 Tanzimat reforms urban transformations Ottoman city Mediterranean port-city
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Characteristics and Mechanism of Agricultural Transformation in Typical Rural Areas of Eastern China:A Case Study of Yucheng City,Shandong Province 被引量:11
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作者 CHEN Yangfen LIU Yansui XU Keshuai 《Chinese Geographical Science》 SCIE CSCD 2010年第6期545-553,共9页
Rural off-farm employment,rapid loss of agricultural land,and advanced technology popularization had led agricultural production in Chinese typical rural areas come at a critical transformation and upgrade stage.Based... Rural off-farm employment,rapid loss of agricultural land,and advanced technology popularization had led agricultural production in Chinese typical rural areas come at a critical transformation and upgrade stage.Based on sample survey data gathered from 401 households in Yucheng City,Shandong Province,this paper focuses on the characteristics and mechanism of agricultural transformation in typical rural areas of the eastern China.It was found that 74.3% of households surveyed kept at least one member engaging in off-farm employment,and 57.1% looked forward to expanding the operational scale of arable land,while just 13.7% had actually transferred their agricultural land.Since growing off-farm employment does not result in the collapse of traditional subsistence agriculture,therefore,agricultural production in Yucheng City is at an incomplete transformation phase from traditional small-holder farming to modern scale economy.It is caused by both macro environments and family characteristics,while urban-rural dual structure,imperfect rural development policy and agricultural technology popularization make peasant economy strengthen upon maintenance,and small-holder farming becomes peasant's natural response owing to pluriactivity,local off-farm employment,reverse elimination,etc.In order to achieve smooth agricultural transformation of typical rural areas in the eastern China,it needs to promote professional differentiation among peasants,under clear policies adopted by central government.Providing comprehensive services for agricultural production and improving production skills and knowledge of farmers who are still living in the countryside will effectively stimulate the process of agricultural transformation. 展开更多
关键词 agricultural transformation off-farm employment arable land management Yucheng City China
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Urban environmental problems transition and environmental education towards sustainable cities in China 被引量:2
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作者 LI Wei, XUE Ji\|yu (State Key Joint Laboratory of Environmental Simulation and Pollution Control, Institute of Environmental Sciences, Beijing Normal University, Beijing 100875, China. E\|mail:WEILI@BNU.EDU.CN.CHINA) 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2000年第1期20-23,共4页
With the rapid economic development and the speeding up of urbanization, the urban environmental problems in China are experiencing a progressive transition, which is characterized by steady transferring to the living... With the rapid economic development and the speeding up of urbanization, the urban environmental problems in China are experiencing a progressive transition, which is characterized by steady transferring to the living (or consumption) oriented pollution pattern from the production oriented pollution pattern. Regarding this transition, the environmental education recognized as an important measure for approaching the objective of sustainable development, should transfer its focus correspondingly in urban area, which is to transfer to the habit cultivating pattern on the basis of the traditional knowledge inputting environmental education pattern. In practice, the urban environmental education should emphasize more on developing or cultivating the sustainable living mode of the urban residents, especially the students in elementary and primary schools and women. By this transform, the environmental education may be guided further towards sustainable development, and to serve the achievement of sustainable cities better in China. 展开更多
关键词 environmental education sustainable cities TRANSITION transform CLC number: X22 Document code: A
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Effectiveness of Land Use Structure Evolution to Industrial Structure Transformation 被引量:2
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作者 ZHOU Xian-peng ZHAI Wen-xia KE Xin-li 《Asian Agricultural Research》 2012年第4期50-51,55,共3页
Scarcity of land resources and transformation of industrial structure is a pair of contradictory elements.We derive the characteristics of land use structure and industrial structure transformation in Xining City usin... Scarcity of land resources and transformation of industrial structure is a pair of contradictory elements.We derive the characteristics of land use structure and industrial structure transformation in Xining City using Transformation Coefficient(TC):first,in the period 1999-2000,the land use structure coefficient(θ1) declined by 79.55%,but the overall evolution trend is gentle;second,the transformation coefficient of industrial structure(θ2) tended to decline ceaselessly on the whole,a decrease of 36.09%(overall,the transformation coefficient of industrial structure is slightly greater than the land use structure coefficient);third,the inter-annual variation of the two experienced ups and downs(in the period 1999-2007,the inter-annual variation was great and in the period 2008-2010,the inter-annual variation tended to be gentle).On the basis of autocorrelation and co-integration model,we draw the following conclusions through analysis:first,the land use structure in Xining City plays a role in promoting industrial structure transformation;second,there is a long-term equilibrium relationship between the two.Finally,relevant policy recommendations are put forward for the industrial development in Xining City. 展开更多
关键词 Land use structure Industrial structure transformation transformation Coefficient Xining City
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Paths and strategies of resource-exhausted city transformation: A case study in coal city Pingxiang of Jiangxi Province 被引量:1
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作者 ZHANG Xin-zhi NIU Xi +2 位作者 YAO Chen-sheng WANG Xiu-zhi XU Hua 《Ecological Economy》 2015年第1期43-53,共11页
Appearance and exhaustion of the resource city is an inevitable objective phenomenon in the process of industrialization. Transformation of the resource city became the focus of attention with highlighting problems an... Appearance and exhaustion of the resource city is an inevitable objective phenomenon in the process of industrialization. Transformation of the resource city became the focus of attention with highlighting problems and contradictions in the city. The paper places emphasis on path selection and transformation strategies of resource-exhausted city transformation taking the coal city Pingxiang as an example. From the perspective of profi le and effectiveness of transformation in Pingxiang city, the paper analyzes the main problems in the city transformation, points out its main path direction from economic transformation, social transformation and ecological transformation, and fi nally presents transition strategy and policy recommendations to the city. 展开更多
关键词 resource-exhausted CITY transformation path coal CITY Pingxiang CITY
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Actual Value of Rural Cultural Auditorium Construction from the Perspective of Social Transformation:A Case Study of Wenzhou City 被引量:1
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作者 Aijun SHEN 《Asian Agricultural Research》 2020年第11期75-79,共5页
From the perspective of social transformation,this paper analyzed the actual value of the construction of Wenzhou rural cultural auditorium,and it was found that it has important value in promoting the transformation ... From the perspective of social transformation,this paper analyzed the actual value of the construction of Wenzhou rural cultural auditorium,and it was found that it has important value in promoting the transformation of rural culture,economy,and grassroots governance.The construction of rural cultural auditorium is helpful for improving the present backward status of rural public cultural service supply,and promoting the integration and development of rural culture and urban culture;cultivating new rural economic entities,injecting action force for rural economic transformation and development;providing space guarantee for citizen participation in rural grassroots social governance,and is favorable for enhancing the awareness of public participation in rural grassroots governance.However,in the context of comprehensive rural revitalization,the value of cultural auditorium construction has not yet been fully realized.It is necessary to further enhance its value in rural social transformation from three aspects:auditorium construction,daily activity undertaking,and residents'participation in cultivation. 展开更多
关键词 Cultural auditorium Rural social transformation VALUE Wenzhou City
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Urban structure transformation of Lhasa City after the peaceful liberation and democratic reform of Tibet
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作者 张樱子 ZHAO Shi-chen Atsushi DEGUCHI 《Journal of Chongqing University》 CAS 2017年第3期124-140,共17页
In Tibet, Buddhism coupled with its theocratic history has given its cities and urban areas unique forms and structures. As the political, religious, and economic center of Tibet, Lhasa City has a special urban form a... In Tibet, Buddhism coupled with its theocratic history has given its cities and urban areas unique forms and structures. As the political, religious, and economic center of Tibet, Lhasa City has a special urban form and has experienced typical urban transformation processes for a thousand years. The city has been experiencing significant urban structure transformation that has accompanied the socio-economic development in recent decades since the peaceful liberation and democratic reform of Tibet during the 1950 s. Hence, this study presents the time-series of urban structure changes in Lhasa City for the purpose of understanding the characteristics and mechanisms of transformation under the republican political system. First, the study illustrates the urban socio-economic changes of Lhasa City beginning in the 1950 s via statistical data analysis. We then divide the urban development into several stages. Subsequently, we identify the transformation characteristics of urban structure by investigating urban growth, street structure, land-use, and religious facilities via maps of the city from every development stage. This paper ultimately discusses the regulation of city transformation. This study clarifies several probable issues facing Tibetan cities and proposes suggestions for future urban development of Tibetan cities. 展开更多
关键词 urban structure transformation highland city Tibetan Buddhism theocratic governance
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An Outlook of Housing Transformation in Dhaka City
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作者 Md.Kamruzzaman 《Journal of Civil Engineering and Architecture》 2019年第1期58-70,共13页
This paper contributes to the view that urban housing in most cities in developing countries is different in nature and more extent than that operative in developed countries.It addresses the emergence of multi-storie... This paper contributes to the view that urban housing in most cities in developing countries is different in nature and more extent than that operative in developed countries.It addresses the emergence of multi-storied apartments through transformation in residential areas in Dhaka,one of the populous cities in the world and largest metropolitan region in Bangladesh,with a particular reference to a study conducted at Rupangar Residential Area.It identifies the key forces and processes underlying Dhaka’s residential transformation and the advent of multi-storied apartments.Fragmentation of functions and the uses of building stocks in relation to the socio-economic aspects with local conditions were sought in the survey.The increasing housing demand is essentially fulfilling by multi-storied apartments and steadily transforming the landscape and lifestyle of huge urban dwellers in Dhaka.It reveals from the study that apartment living gains much popularity and the dominance of informal apartments over formal apartments is more evident.More distinctly,piecemeal apartment development by the informal developers provides affordable shelter to the highest segment of city dwellers and Rupnagar presents a reasoned scenario urban housing transformation in the capital of Bangladesh. 展开更多
关键词 APARTMENT Dhaka CITY HOUSING transformation piecemeal CONSTRUCTION
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A research on the path and policy of urban energy transformation:A case study of Huzhou city in Zhejiang province
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作者 WANG Han-yun DENG Liang-chen +2 位作者 WANG Juan ZHOU Fu-qiu LI Shu-yi 《Ecological Economy》 2021年第3期232-240,共9页
Urban energy transformation is important to promote China’s energy transformation,to facilitate ecological civilization construction,and to achieve the goal of carbon peak and carbon neutrality.In recent years,Huzhou... Urban energy transformation is important to promote China’s energy transformation,to facilitate ecological civilization construction,and to achieve the goal of carbon peak and carbon neutrality.In recent years,Huzhou,a city of Zhejiang Province,has actively promoted the"ecology+power"city construction.It has explored an innovative mode of urban energy transformation and gained rich practical experience,which has widely attracted attention at home and abroad.Based on field research,this paper makes a comprehensive collation of policies and practical experience of Huzhou’s"ecology+power"mode and summarizes the mode characteristics and promotion value of Huzhou’s urban energy transformation.Finally,taking Huzhou as a sample,we put forward some policy suggestions of China’s urban energy transformation. 展开更多
关键词 energy transformation ecology+power Huzhou city
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Theoretical Research,Practice Exploration and Policy Suggestions on Scenescape Development and Ecological Value Transformation in Chengdu’s Park City Construction
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作者 Wei Liangyi Xu Qi 《Contemporary Social Sciences》 2021年第4期53-66,共14页
The“Park City”concept presents a new,urban development model that can be used as a guide for planning the growth of a city.Advancing the transformation of Chengdu into a park city is an important and unique strategi... The“Park City”concept presents a new,urban development model that can be used as a guide for planning the growth of a city.Advancing the transformation of Chengdu into a park city is an important and unique strategic option for maintaining and strengthening the Chengdu-Chongqing economic circle.The construction of a park city in Chengdu has many potentially positive and favorable outcomes,including maintaining natural ecosystems while improving biodiversity,livability,and enhancing the city’s historical and cultural heritage,all while establishing Chengdu as a national leader for this new urban development model.In recent years,park city scenescape modeling and the resulting ecological value transformations have been analyzed through theory,mechanism designs,and limited practice,but throughout the explorations on scenescape building and ecological value transformations,the actual construction of a park city is still facing many problems.This article argues that Chengdu should take lessons from the advanced experience in urban ecological construction efforts of other cities,both in China and overseas,focusing on sustained scenescape building,theoretical research in ecological value transformations,establishing meaningful and compatible interaction mechanisms between ecological value transformations and capital markets,improving the levels of planning and designing needed for scenescape building,establishing innovative scenescape building and ecological value transformations management systems and mechanisms,and cultivating park city scenescape brands.Related and detailed scenescape building and ecological value transformation measurement and policy suggestions are also provided in this article. 展开更多
关键词 Park City scenescape building ecological value transformations
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A Study on the Translation of Love in a Fallen City from the Perspective of Three Dimensional Transformation of Eco-Translatology
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作者 GUO Pin-pin MA Wen-li 《Journal of Literature and Art Studies》 2022年第6期641-644,共4页
Love in a Fallen City is one of Eileen Chang’s representative works and translated by Karen Kingsbury.The ecological environment of translation restricts and influences the translator’s choice of translation strateg... Love in a Fallen City is one of Eileen Chang’s representative works and translated by Karen Kingsbury.The ecological environment of translation restricts and influences the translator’s choice of translation strategies,methods and techniques in the process of translation.According to the eco-translatology,translation is a transformation from language dimension,culture dimension and communication dimension.This article analyzes the three-dimensional transformation between the source language and the target language in the English version of Love in a Fallen City,and holds that a good translation must be the translator’s effective adaptation to the ecological environment including the source language,the source culture and the target culture. 展开更多
关键词 ECO-TRANSLATOLOGY Three-dimensional transformation Love in a Fallen City
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基于Transformer语义分割模型的露天矿场识别
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作者 陈佳晟 游翔 +2 位作者 沈盛彧 廖梓凯 张彤 《人民长江》 北大核心 2024年第7期59-64,共6页
露天矿场是生产建设项目水土保持信息化监管的重要对象,对其范围的高效精准识别对于监测非法违规开采行为,加强开采过程中的水土流失预防与治理具有重要意义。基于Transformer深度学习模型提出了露天矿场的遥感影像智能识别方法,并在四... 露天矿场是生产建设项目水土保持信息化监管的重要对象,对其范围的高效精准识别对于监测非法违规开采行为,加强开采过程中的水土流失预防与治理具有重要意义。基于Transformer深度学习模型提出了露天矿场的遥感影像智能识别方法,并在四川省宜宾市的露天矿场影像数据集上与常用的基于卷积神经网络的深度学习识别方法进行了实验对比。结果表明:该方法对露天矿场范围识别的精确率、召回率、F1-score和IoU指标分别达到91.25%,90.66%,90.95%和83.41%,能够满足水土保持遥感监管的精确度要求;在识别精确度和识别效果上优于对比方法,在运行效率上与对比方法保持在同一数量级,表现出较强的应用价值。该方法在大区域露天矿场范围快速准确识别方面有推广应用潜力。 展开更多
关键词 水土保持 遥感监管 露天矿场 深度学习 transformer模型 语义分割 宜宾市
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An Enhanced Multiview Transformer for Population Density Estimation Using Cellular Mobility Data in Smart City
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作者 Yu Zhou Bosong Lin +1 位作者 Siqi Hu Dandan Yu 《Computers, Materials & Continua》 SCIE EI 2024年第4期161-182,共22页
This paper addresses the problem of predicting population density leveraging cellular station data.As wireless communication devices are commonly used,cellular station data has become integral for estimating populatio... This paper addresses the problem of predicting population density leveraging cellular station data.As wireless communication devices are commonly used,cellular station data has become integral for estimating population figures and studying their movement,thereby implying significant contributions to urban planning.However,existing research grapples with issues pertinent to preprocessing base station data and the modeling of population prediction.To address this,we propose methodologies for preprocessing cellular station data to eliminate any irregular or redundant data.The preprocessing reveals a distinct cyclical characteristic and high-frequency variation in population shift.Further,we devise a multi-view enhancement model grounded on the Transformer(MVformer),targeting the improvement of the accuracy of extended time-series population predictions.Comparative experiments,conducted on the above-mentioned population dataset using four alternate Transformer-based models,indicate that our proposedMVformer model enhances prediction accuracy by approximately 30%for both univariate and multivariate time-series prediction assignments.The performance of this model in tasks pertaining to population prediction exhibits commendable results. 展开更多
关键词 Population density estimation smart city transformER multiview learning
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Conflicts in Defining Data Ownership in China’s Digital Transformation and the Regulatory Path
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作者 Zihan Si Nuowen Mai +2 位作者 Yifei Quan Yihuan Zhou Xiaoyue Zhang 《Proceedings of Business and Economic Studies》 2022年第3期61-74,共14页
China is aggressively pursuing digital transformation,and data,alike labor,technology,capital,and knowledge,has become as a crucial factor of production.Digital transformation is accelerating the emergence of a data-i... China is aggressively pursuing digital transformation,and data,alike labor,technology,capital,and knowledge,has become as a crucial factor of production.Digital transformation is accelerating the emergence of a data-intensive society,and the ensuing difficulties of balancing freedom and responsibility,openness and security,as well as free sharing and legal regulation are posing new challenges to national and social governance.Among these challenges,defining data ownership,the social disorder and anomie brought about by the unclear definition of data ownership,and data ownership regulatory path are new propositions that need to be urgently addressed in this data-intensive society.This paper systematically explains the theoretical meaning and practical value of data ownership through a literature review on the analysis of domestic and foreign scholars as well as research think tanks,compares the differences and inherent conflicts between the definition of data ownership by the government,enterprises,and society in China,thoroughly compares the definition standards of the European Union,the United States,and Japan,and on this basis,discusses the formation of a definition of data ownership that meets the requirements of China’s digital transformation. 展开更多
关键词 Digital transformation Data ownership Smart cities Risk regulation
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“三生空间”视角下贵溪市土地利用转型的生态系统服务价值效应
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作者 甘晓辉 汤江龙 朱健计 《国土与自然资源研究》 2025年第1期19-26,共8页
本文基于贵溪市2010-2018年土地利用现状数据为基础,在“三生空间”视角下,使用土地利用转移矩阵表达了贵溪市土地利用转型过程,并通过生态系统服务贡献值从正负两方面量化土地类型转变造成的生态系统服务价值效应。结果表明,2010-2018... 本文基于贵溪市2010-2018年土地利用现状数据为基础,在“三生空间”视角下,使用土地利用转移矩阵表达了贵溪市土地利用转型过程,并通过生态系统服务贡献值从正负两方面量化土地类型转变造成的生态系统服务价值效应。结果表明,2010-2018年,贵溪市生态用地面积减少,生产和生活用地不断增加,其中林地生态用地减少最多,共计2 330.73 hm^(2),农业生产用地增加最多,面积为1 183.35 hm^(2)。贵溪市生态系统服务价值存在明显差异,整体上是“南北高,中部低”的空间分布。2010-2018年,从生态系统服务价值总体层面,贵溪市呈下降趋势。由于城市化和工业化的快速推进,生活用地和生产用地正在侵占大量生态用地,对生态系统服务价值产生负效应影响。对生态系统服务有正效应影响的主要土地利用转换类型是农业生产用地向各种生态用地的转换,“退耕还林还草”的实施是主要原因。贵溪市生态系统服务价值从2014年开始下降幅度得到缓解,但总体上生态系统服务价值负效应大于正效应。分析2010-2018年贵溪市土地利用转型及其生态系统服务价值效应对贵溪市国土空间规划和“生态文明建设”具有指导意义。 展开更多
关键词 土地利用转型 三生空间 生态系统服务价值 贵溪市
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The efficiencies and their changes of China's resources-based cities employing DEA and Malmquist Index Models 被引量:20
20
作者 Sun Wei Li Yang +1 位作者 Wang Dai Fan Jie 《Journal of Geographical Sciences》 SCIE CSCD 2012年第3期509-520,共12页
Employing DEA model and Malmquist productivity index, this paper probes into the urban efficiencies of 24 typical resources-based cities in China and their changes from 2000 to 2008. The research finds that the overal... Employing DEA model and Malmquist productivity index, this paper probes into the urban efficiencies of 24 typical resources-based cities in China and their changes from 2000 to 2008. The research finds that the overall efficiencies of the resources-based cities are just at a general level, and only a few of them reach the optimal level. The scale efficiency is the major determining factor of the achievement of overall efficiency, the effect of which, nevertheless, is reducing. From the perspective of classification characteristics, the resources-based cities in northeastern region have been in the front rank in terms of overall efficiency, pure technical efficiency and scale efficiency. There is a certain positive correlation between urban population scale and urban efficiency. The analysis of urban efficiency changes shows that the changes in overall efficiency of resources-based cities from 2000 to 2008 had a weak improving tendency. Both the technical change index and productivity change index decreased, indicating that the urban efficiency did not improve during this period, and the tendency of technical recession and productivity decline was obvious. In terms of the classification of urban efficiency changes, the urban overall efficiency improved in each of the four regions from 2000 to 2008, among which western region witnessed the greatest increase. Cities with different resource types have improved their urban overall efficiencies except steel-based cities. The urban overall efficiency increased in resources-based cities of different scales, with greater improvement in small and medium-sized cities than in big cities. 展开更多
关键词 resources-based cities DEA model Malmquist productivity index efficiency
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