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Evolution Process of Urban Spatial Pattern in Hubei Province Based on DMSP/OLS Nighttime Light Data 被引量:4
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作者 ZHENG Wensheng RUN Jiying +2 位作者 ZHUO Rongrong JIANG Yupei WANG Xiaofang 《Chinese Geographical Science》 SCIE CSCD 2016年第3期366-376,共11页
This paper intends to investigate the urban spatial patterns of Hubei Province and its evolution from three different perspectives: urban nodes, urban connections and urban clusters. The research adopts nighttime ligh... This paper intends to investigate the urban spatial patterns of Hubei Province and its evolution from three different perspectives: urban nodes, urban connections and urban clusters. The research adopts nighttime light imagery of cities in Hubei Province, the viewpoint of ′point-axis-area′ in the ′point-axis system′ theory, and employs light index model, gravity model and social network analysis. The findings are as follows: 1) In terms of urban nodes, the urbanization process of Hubei has been carried out mainly on the basis of external expansion rather than internal increasing. The polarization trend of urban connection network is strengthening. 2) As for urban connections, the estimation of urban connections using light index model is capable of containing various actual flow, and the connections are getting increasingly closer. 3) In regard to urban groups, seven urban groups of varying sizes have formed. On that basis, three stable and relatively independent urban groups as the centers, namely Wuchang, Yichang and Xiangyang emerge as well. But the structures of ′Wuhan Metropolitan Area′, ′Yichang-Jingzhou-Jingmen City Group′ and ′Xiangyang-Shiyen-Suizhou City Group′, which are defined by local development strategy in Hubei Province, are different from the above three urban groups. 展开更多
关键词 Defence Meteorological Satellite Program′s Operational Linescan System(DMSP/OLS) urban spatial pattern point-axis-area Hubei Province China
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Evolution and Spatial Patterns of Spheres of Urban Influence in China 被引量:5
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作者 WANG Kaiyong DENG Yu +1 位作者 SUN Daowei SONG Tao 《Chinese Geographical Science》 SCIE CSCD 2014年第1期126-136,共11页
This article presents the findings of a study of the spheres of urban influence with regard to all cities in China(not including Hong Kong,Macao and Taiwan Province of China)in the years 1990,2000 and 2009.An optimize... This article presents the findings of a study of the spheres of urban influence with regard to all cities in China(not including Hong Kong,Macao and Taiwan Province of China)in the years 1990,2000 and 2009.An optimized gravity model with comprehensive time distance was used to carry out a detailed analysis of the spatial patterns of Chinese spheres of urban influence and the spatial characteristics of urban agglomerations.Such urban agglomerations are characterized by high density population and a developed economy,which are also considered as the national competition unit.This paper initially identifies four spatial patterns of urban agglomerations based on the spatial layout of city groups during their evolution.Some basic characteristics of urban agglomerations are outlined,including the number of cities,the size of cities and the functions of urban centers.These characteristics are examined by using statistical methods and Geographic Information System(GIS).The main findings from this research are that the development stages and structures of urban agglomerations in China vary significantly.It is also clear that the stages and evolution of spatial patterns are strongly affected and dominated by both policy and location factors. 展开更多
关键词 SPHERES of urban INFLUENCE types of spatial pattern dynamic EVOLUTION urban AGGLOMERATION
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Spatial patterns of urban land use growth in Beijing 被引量:17
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作者 LIU Shenghe, Sylvia Prielei, LI Xiubin(1. Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China 2. International Institute for Applied System Analysis, A-2361 Laxenburg, Austria) 《Journal of Geographical Sciences》 SCIE CSCD 2002年第3期266-274,共9页
By using digitized land use maps of Beijing in 1982, 1992 and 1997 and employing GIS spatial analysis techniques, this paper conducts an empirical study on the spatial differentiation and spatial patterns of urban lan... By using digitized land use maps of Beijing in 1982, 1992 and 1997 and employing GIS spatial analysis techniques, this paper conducts an empirical study on the spatial differentiation and spatial patterns of urban land use growth in Beijing in the period of 1982–1997. It is observed that urban land use growth in Beijing went beyond the control of urban planning, in terms of the extraordinary high growth rate and undesired spatial pattern. The rate of urban expansion after 1982, which was predominated by growth of industrial land, was extraordinary high compared to its historical period. While its growth centers have been actively shifting toward the northern part, rather than toward the southern and eastern parts as designated by the latest General Plan (1991–2010) of Beijing, its spatial pattern of urban land use growth in general was in distinct concentric sprawl, which seriously violated the General Plan of Beijing. 展开更多
关键词 urban land use spatial differentiation growth pattern GIS BEIJING
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The spatial-temporal pattern and influencing factors of negative air ions in urban forests, Shanghai, China 被引量:22
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作者 Hong Liang Xiaoshuang Chen +1 位作者 Junguang Yin Liangjun Da 《Journal of Forestry Research》 SCIE CAS CSCD 2014年第4期847-856,共10页
Negative air ions are natural components of the air we breathe Forests are the main continuous natural source of negative air ions (NAI). The spatio-temporal patterns of negative air ions were explored in Shanghai, ... Negative air ions are natural components of the air we breathe Forests are the main continuous natural source of negative air ions (NAI). The spatio-temporal patterns of negative air ions were explored in Shanghai, based on monthly monitoring in 15 parks from March 2009 to February 2010. In each park, sampling sites were selected in forests and open spaces. The annual variation in negative air ion concentrations (NAIC) showed peak values from June to October and minimum values from December to January. NAIC were highest in summer and autumn, intermediate in spring, and lowest in winter. During spring and summer, NAIC in open spaces were significantly higher in rural areas than those in suburban areas. However, there were no significant differences in NAIC at forest sites among seasons. For open spaces, total suspended particles (TSP) were the dominant determining factor of NAIC in sum- mer, and air temperature and air humidity were the dominant determining factors of NAIC in spring, which were tightly correlated with Shanghai's ongoing urbanization and its impacts on the environment. R is suggested that urbanization could induce variation in NAIC along the urban-rural gradient, but that may not change the temporal variation pattern. Fur- thermore, the effects of urbanization on NAIC were limited in non-vegetated or less-vegetated sites, such as open spaces, but not in well-vegetated areas, such as urban forests. Therefore, we suggest that urban greening, especially urban forest, has significant resistance to theeffect of urbanization on NAIC. 展开更多
关键词 negative air ion concentration spatial-temporal pattern urbanIZATION urban ecosystem urban greening
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Spatial Pattern and Distribution of Crime in Suleja Lga, Niger State, Nigeria
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作者 Isaac Utenwojo Ocholi Paul Ojochenemi Abuh +1 位作者 Ademu Samuel Aminu Musa 《Journal of Geographic Information System》 2023年第4期379-390,共12页
The study examines the Spatial Pattern and Distribution of Crime in Suleja LGA, Niger State, Nigeria. The study used GIS and statistical methods to analyse the pattern and distribution of crime incidence in the study ... The study examines the Spatial Pattern and Distribution of Crime in Suleja LGA, Niger State, Nigeria. The study used GIS and statistical methods to analyse the pattern and distribution of crime incidence in the study area. The records of each crime incidence were geocoded. Microsoft Excel was used to collate and organise the crime entries before they were imported into the ArcGIS Pro 2.0 environment. A geodatabase was created where the spatial and aspatial data were encoded and geospatial analysis was performed. The study reveals that the crime distribution pattern is generally clustered with a Global Moran’s I index of 0.097, a Z-score of 1.87, and a P-value < 0.06. Furthermore, the study reveals that armed robbery (61), kidnapping (40), car theft (33), culpable homicide (31), rape (29), and robbery (13) cases rank the highest in crime rate. Equally, findings of the study show that Chaza, Kwamba, Madalla, Suleja central, and Gaboda are the major crime hotspot zones at 90% confidence, as analysed using the Getis-Ord Gi* (Hot spot analysis) spatial statistics tool in ArcGIS Pro 2.0. The research therefore recommends that more effort be put into fighting crime, especially in areas where there are low-security formations, as they mostly have the highest record of crimes committed. Also, the patrol units should be equipped with GPS for better surveillance and real-time tracking of criminal activities. 展开更多
关键词 urban Security spatial pattern CRIME GIS HOTSPOT INSECURITY
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Spatial-Temporal Features of Wuhan Urban Agglomeration Regional Development Pattern—Based on DMSP/OLS Night Light Data
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作者 Mengjie Zhang Wenwei Miao +2 位作者 Yingpin Yang Chong Peng Yaping Huang 《Journal of Building Construction and Planning Research》 2017年第1期14-29,共16页
Based on the night light data, urban area data, and economic data of Wuhan Urban Agglomeration from 2009 to 2015, we use spatial correlation dimension, spatial self-correlation analysis and weighted standard deviation... Based on the night light data, urban area data, and economic data of Wuhan Urban Agglomeration from 2009 to 2015, we use spatial correlation dimension, spatial self-correlation analysis and weighted standard deviation ellipse to identify the general characteristics and dynamic evolution characteristics of urban spatial pattern and economic disparity pattern. The research results prove that: between 2009 and 2013, Wuhan Urban Agglomeration expanded gradually from northwest to southeast and presented the dynamic evolution features of “along the river and the road”. The spatial structure is obvious, forming the pattern of “core-periphery”. The development of Wuhan Urban Agglomeration has obvious imbalance in economic geography space, presenting the development tendency of “One prominent, stronger in the west and weaker in the east”. The contract within Wuhan Urban Agglomeration is gradually decreased. Wuhan city and its surrounding areas have stronger economic growth strength as well as the cities along The Yangtze River. However, the relative development rate of Wuhan city area is still far higher than other cities and counties. 展开更多
关键词 NIGHT LIGHT DATA urban spatial pattern Economic DISPARITY pattern Wuhan urban Agglomeration
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Spatial Pattern and Evolution of Urbanization in Shandong Province
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作者 LIU Chenxi WANG Linlin 《Journal of Landscape Research》 2018年第3期19-23,共5页
Based on Arc GIS and SPSS Statistics,authors of this paper used the principal component analysis(PCA) and the analytic hierarchy process(AHP),and selected 6 indicators concerning population,land,and economy to study t... Based on Arc GIS and SPSS Statistics,authors of this paper used the principal component analysis(PCA) and the analytic hierarchy process(AHP),and selected 6 indicators concerning population,land,and economy to study the spatial pattern of urbanization and regional economic differences in Shandong Province,namely urban population,urban population density,construction land,area of urban districts,disposable income of residents,and added value of the tertiary industry.The development of urbanization in Shandong Province was measured by the proportion of urban population to the total population in 2000,2005,2010,and 2014 respectively.It is hoped that this paper will provide a theoretical basis for building an orderly regional spatial structure and coordinating regional urban decision-making. 展开更多
关键词 urbanIZATION spatial pattern EVOLUTION law REGIONAL ECONOMIC DIFFERENCES
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Influencing Factors and Urbanization Effects of the Spatial Pattern of Floating Population in Anhui Province
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作者 XU Zeguo 《Journal of Landscape Research》 2019年第5期88-94,98,共8页
Based on the population census data,this paper analyzed the influencing factors and urbanization effects of the floating population in Anhui Province using ArcGIS spatial analysis,factor analysis,multiple liner regres... Based on the population census data,this paper analyzed the influencing factors and urbanization effects of the floating population in Anhui Province using ArcGIS spatial analysis,factor analysis,multiple liner regression,and spatial autocorrelation,and reached the following conclusions:① From 2000 to 2010,the floating population in Anhui Province was concentrated in cities dotted the Huai River and the Yangtze River,and Hefei City absorbed the most inter-provincial floating population and intra-provincial floating population.② The overall economic strength had the greatest impact on attracting floating population,while the income level factor has less impact on attracting floating population.The overall economic strength and the strength of science,education,culture,and health of prefecture-level cities in Anhui Province were more attractive to the intra-provincial floating population and less attractive to the inter-provincial floating population.③ Population mobility promoted urbanization.Large cities could attract more migrants from counties.The urban population system in Anhui Province was generally developing towards the concentration of large cities,while the proportion of the county population in the total population was decreased. 展开更多
关键词 FLOATING POPULATION spatial pattern Influencing FACTOR urbanIZATION effect
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Spatio-temporal Pattern Characteristics of Relationship Between Urbanization and Economic Development at County Level in China 被引量:9
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作者 YANG Zhen ZHANG Xiaolei +2 位作者 LEI Jun DUAN Zuliang LI Jiangang 《Chinese Geographical Science》 SCIE CSCD 2019年第4期553-567,共15页
The relationship between China’s urbanization and economic development(RCUED) is an important concern nationwide. As important actors in regional strategy and policy, county-level regions have played an increasingly ... The relationship between China’s urbanization and economic development(RCUED) is an important concern nationwide. As important actors in regional strategy and policy, county-level regions have played an increasingly significant role in the development of China’s social economy. However, the existing research on the RCUED lacks the fine depiction of the county-level administrative units.Using 2000 and 2010 census data and the statistical analysis method, we uncovered the evolution characteristics of China’s urbanization and economic development and conducted a quantitative identification for the RCUED with improved methods using the quadrant map approach. In addition, we investigated the spatial correlation effect of the RCUED using the spatial autocorrelation analysis method. The results were as follows: 1) In general, a high degree of matching exists between China’s urbanization and economic development at the county level at the significance level of 0.01. The correlation coefficients between China’s urbanization and economic development in2000 and 2010 were 0.608 and 0.603, respectively. 2) A significant regional difference exists in the RCUED at the county level. Based on a comparative analysis of 2276 county units in China in the two years, we found that county units can be categorized as under-urbanized, basic coordination and over-urbanized in various areas. No situation was observed where urbanization seriously lagged behind the economic development level, so the levels of urbanization and economic development appear to be basically coordinated,and the coordination state may be gradually optimized over time. 3) Over time, the spatial dependency of the RCUED has weakened and the spatial heterogeneity has increased. Northeast China has always been an area characterized by over-urbanization. The number of county units classified as under-urbanized has begun to decline in eastern coastal urban agglomeration areas, while counties rich in resources have transformed from having point-shaped over-urbanization to plane-shaped under-urbanization along the northern border,and the number of over-urbanized county units has increased in the middle reaches of the Yangtze River. 4)’Lag-lag’ type and ’advance-advance’ type accounted for 68% of all counties in China, and these counties were shown to have obvious spatial differentiation characteristics. 展开更多
关键词 urbanIZATION ECONOMIC development RELATIONSHIP spatial-temporal pattern COUNTY China
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The Structure and Pattern of Urban Network in the Lanzhou-Xining Urban Agglomeration 被引量:2
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作者 TONG Huali SHI Peiji +1 位作者 LUO Jun LIU Xiaoxiao 《Chinese Geographical Science》 SCIE CSCD 2020年第1期59-74,共16页
In this paper,we use factor analysis to evaluate the urban comprehensive quality of each city in the Lanzhou-Xining(Lan-Xi)urban agglomeration.The time distance was obtained by using GIS spatial analysis,and the struc... In this paper,we use factor analysis to evaluate the urban comprehensive quality of each city in the Lanzhou-Xining(Lan-Xi)urban agglomeration.The time distance was obtained by using GIS spatial analysis,and the structure and pattern of the spatial network were analyzed by using the gravity model and social network analysis method.The results show that:1)The scale effect of the Lan-Xi urban agglomeration is gradually emerging,and it is gradually forming the urban agglomeration with Lanzhou and Xining as the core,the Lan-Xi high-speed railway as the axis,and a high-dense connection.2)Lanzhou and Xining are at the core of the Lan-Xi urban agglomeration,which has a strong attraction and spreads to neighboring cities.3)In the network structure of the Lan-Xi urban agglomeration,Lanzhou,Baiyin,Gaolan,Yuzhong,Yongdeng,Dingxi,Lintao,Xining,Ledu,Huangzhong,Ping’an,Minhe and Datong are located in the network core position,which have the superiority position and lead to the entire regional communication enhancement and the regional integration development.4)This urban agglomeration has significant subgroups,eight tertiary subgroups and four secondary subgroup;the tertiary subgroups which compose secondary subgroup have a close connection and mutually influence each other.5)The Lanzhou Metropolitan Area and the Xining Metropolitan Area have an important impact on the surrounding cities,and the peripheral cities are basically controlled by the central city.The Dingxi subgroup,Lintao-Linxia subgroup,Gonghe subgroup have more structural holes than the subgroups within the Lanzhou Metropolitan Area and the Xining Metropolitan Area,so the peripheral cities of these subgroups have relatively less connection with surrounding cities. 展开更多
关键词 urban network spatial structure spatial pattern Lan-Xi urban agglomeration China
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重庆市中心城区城市空间扩展特征识别与未来演化模拟分析
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作者 官冬杰 李梦丹 +1 位作者 周李磊 杨文 《资源与产业》 2024年第4期133-146,共14页
城市时空演化特征模拟及驱动因素探究,可为区域城市发展规划和土地资源管理提供决策参考。基于城市空间扩展判别模式、空间扩展特征测度指标和PLUS模型,探究1980—2020年重庆市中心城区城市建设用地的城市扩展模式,分析空间格局变化特征... 城市时空演化特征模拟及驱动因素探究,可为区域城市发展规划和土地资源管理提供决策参考。基于城市空间扩展判别模式、空间扩展特征测度指标和PLUS模型,探究1980—2020年重庆市中心城区城市建设用地的城市扩展模式,分析空间格局变化特征,预测未来城市扩展趋势并揭示驱动因素。结果表明:1)1980—2020年,随着重庆市中心城区各方位扩展分异性缓慢上升,城市破碎化程度加剧,形成“多方向、多扩展翼、多条带”扩展模式,呈现“西快东慢、西南-东北延伸”分布格局;2)1980—2020年,重庆市中心城区扩展速度和强度呈现先上升后下降趋势,城市扩展方向由内部和边缘式填充向外部发展,城市形态由逐渐趋于紧凑向逐渐趋于松散、破碎和不规则化分布;3)未来2030年重庆市中心城区仍将向外围扩展,扩展速度有所减缓,扩展方向差异性明显,经济和规划政策因素的影响作用愈发凸显;4)地形、GDP、距水域的距离、距离道路距离和开发区规划是影响重庆市城市扩展快慢的主要驱动力。受地理条件限制,在“多方向、多条带”城市分布格局下,经济、交通、政策为核心的社会经济因素已成为驱动重庆市中心城区空间扩展的关键。建议未来充分发挥经济战略的动能作用,完善与周边城市的经济合作模式,响应区域经济高质量发展号召,增强城市的社会经济活力;加大基础设施投资,完善区县间交通路网,强化中心城市的辐射效应,以提升城市空间内部结构,带动区域发展;同时,考虑重庆市生态保护区、自然保护区及农耕地保护区域,将市政府生境保护纳入城市未来发展规划中,提高自然资源利用效率,统筹环境与城市协调可持续发展。 展开更多
关键词 城市空间扩展 空间格局 驱动因素 PLUS模型 重庆市中心城区
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成都市半城市化地区的特征、驱动机制及规划启示
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作者 陈晨 刘爽 耿佳 《现代城市研究》 北大核心 2024年第1期44-51,共8页
半城市化地区作为一种在景观格局、社会构成和空间形态等方面发生深刻转变的过渡性地域类型,在不同发展战略引导下,其未来发展可能会出现保持现状、持续发展或依赖陷阱等截然不同的结果。特大城市郊区半城市化地域的发展关系到国家经济... 半城市化地区作为一种在景观格局、社会构成和空间形态等方面发生深刻转变的过渡性地域类型,在不同发展战略引导下,其未来发展可能会出现保持现状、持续发展或依赖陷阱等截然不同的结果。特大城市郊区半城市化地域的发展关系到国家经济发展、社会稳定和人居环境改善,对其进行主动干预和精明管治势在必行。文章以成都市为例,研究半城市化发展的时空格局及其特征演变的规律性,在此基础上从交通基础设施和产业园区建设以及城乡接合部的自发发展3个方面解析成都市半城市化发展的驱动机制,基于成都市环城生态区规划实施与城乡统筹规划的创新做法,进一步探讨半城市化地区如何通过规划介入成为一个可持续的发展区域。 展开更多
关键词 特大城市 半城市化 时空格局 驱动机制 可持续 成都市
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面向高质量发展的湖南省新型城镇化发展路径探讨
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作者 刘玲 曾益海 +1 位作者 彭佳捷 李霞 《中外建筑》 2024年第8期86-90,共5页
面向高质量发展,新型城镇化是重要的发展动力之一。分析了湖南省新型城镇化发展特征与趋势,探讨了新型城镇化发展路径。结果表明:(1)现状特征方面,城镇空间体系逐步优化,城乡居民收入稳步增加,但面临省会城市核心带动能力不足、人口老... 面向高质量发展,新型城镇化是重要的发展动力之一。分析了湖南省新型城镇化发展特征与趋势,探讨了新型城镇化发展路径。结果表明:(1)现状特征方面,城镇空间体系逐步优化,城乡居民收入稳步增加,但面临省会城市核心带动能力不足、人口老龄化程度加深、人口净流出、城乡发展不均衡等问题;(2)发展趋势方面,城镇化水平增速将放缓,城镇结构将从点轴发散走向多点成网,人口结构变化引发新诉求,县城为新型城镇化的重要载体,人口流动呈近域化;(3)在战略要求、问题挑战、趋势驱动三种力量下,提出推进实现更高质量的农业转移人口市民化,优化形成更有效率的城镇化格局,实施精细化的高水平治理,建成面向未来的现代城市,统筹推进新型城镇化与乡村全面振兴等路径。 展开更多
关键词 新型城镇化 高质量发展 城镇空间格局 湖南省 发展路径
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湖南省城乡融合发展的时空格局与响应过程
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作者 刘晓 邓吉祥 《科技和产业》 2024年第15期197-202,共6页
城乡融合发展是城乡关系的高级形态和必然趋势,探究湖南省城乡融合发展的基本规律,对协调全省城乡关系、助推乡村振兴、实现高质量发展具有重要意义。采用主成分分析、聚类分析和地理信息系统(GIS)方法,探讨基于全省14个市州的城乡融合... 城乡融合发展是城乡关系的高级形态和必然趋势,探究湖南省城乡融合发展的基本规律,对协调全省城乡关系、助推乡村振兴、实现高质量发展具有重要意义。采用主成分分析、聚类分析和地理信息系统(GIS)方法,探讨基于全省14个市州的城乡融合发展时空演变格局及响应模式。结明表明:全省各市州城乡融合发展水平普遍较低,其中城乡经济融合与城乡社会融合发展水平是城乡差距扩大的主要原因;全省不同地区城乡融合发展水平表现出一定的空间集聚性,可将湖南省内各市州城乡融合发展水平由高到低依次分为4类,Ⅰ类为益阳,Ⅱ类包括常德、永州,Ⅲ类包括株洲、邵阳、娄底、岳阳、张家界、湘西、湘潭、郴州、衡阳、长沙,Ⅳ类为怀化;2016—2022年,湖南全省各市州的城乡融合发展差距呈扩大趋势,且在湖南中北部地区与西部地区分别存在“高-高”“低-低”的空间集聚中心。 展开更多
关键词 城乡融合 时空格局 响应过程
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吉林地区辽金时期城市空间格局演变初探
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作者 李天骄 侯林 《北方建筑》 2024年第2期74-77,共4页
辽金时期,东北地区进入历史发展的巅峰,吉林地区政治活跃,经济相对繁荣,处在民族融合与文化交流的关键时期。在城市格局上,充分体现了吉林地区作为交通要道、经济和文化交流中心的属性。本文以辽金时期古城遗存与城址为主要研究对象,在... 辽金时期,东北地区进入历史发展的巅峰,吉林地区政治活跃,经济相对繁荣,处在民族融合与文化交流的关键时期。在城市格局上,充分体现了吉林地区作为交通要道、经济和文化交流中心的属性。本文以辽金时期古城遗存与城址为主要研究对象,在实地勘察的基础上,对历史资料进行整合分析,并梳理城市遗存的分布情况。通过文献资料分析、历史地理研究和空间分析等方法,分析归纳辽金时期吉林地区城市空间格局的演变路径,对比其城市格局的差异,以期初步揭示吉林地区辽金时期城市空间格局的演变规律。 展开更多
关键词 吉林 辽金时期 城市空间格局 演变
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基于城市职能的明清金州古城景观格局之发展演变研究
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作者 张健 吕军辉 陈九桦 《沈阳建筑大学学报(社会科学版)》 2024年第5期443-450,共8页
金州古城地处辽东边陲,其城市平面和功能布局既受到军事防御功能的影响,又体现出儒家礼制的特征。古城空间格局在明代已初具规模,又经清代的建设与发展,形成了较为成熟的城市功能和完善的道路体系。将历经时代变迁的金州古城三维城市肌... 金州古城地处辽东边陲,其城市平面和功能布局既受到军事防御功能的影响,又体现出儒家礼制的特征。古城空间格局在明代已初具规模,又经清代的建设与发展,形成了较为成熟的城市功能和完善的道路体系。将历经时代变迁的金州古城三维城市肌理变化以二维方式来进行体现,通过对明清两代古城空间结构与营建特点的介绍,直观感受城市空间与职能的发展和演变,进而对金州古城空间形态、功能区域以及城市职能转变的推动力进行了解析,并阐释了城市发展的动因。 展开更多
关键词 金州古城 明清时期 空间形态 城市职能 景观格局
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城市街区单元绿地空间格局与植物群落碳汇效益优化研究
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作者 王晶懋 王一凡 +2 位作者 张涛 范李一璇 孙婷 《风景园林》 北大核心 2024年第6期37-45,共9页
【目的】目前城市绿地已经进入存量发展阶段,如何在城市有限绿地空间条件下实现“碳中和”目标,合理布局低碳绿地空间格局,科学配置植物群落以增加生物多样性,成为目前城市绿地碳汇效益研究的重点和难点。【方法】以西安市碑林区和沣西... 【目的】目前城市绿地已经进入存量发展阶段,如何在城市有限绿地空间条件下实现“碳中和”目标,合理布局低碳绿地空间格局,科学配置植物群落以增加生物多样性,成为目前城市绿地碳汇效益研究的重点和难点。【方法】以西安市碑林区和沣西新城的城市绿地空间格局为研究对象,对研究区域内街区单元的绿地空间格局进行分析并分类,探索街区单元绿地空间格局与碳汇量化关系,并从平面布局和垂直结构两方面提出城市街区单元绿地碳汇效益的优化方法,并选取碳储量最低的单核心辐射型街区单元的3个绿地样方进行碳汇效益优化设计。【结果】总结出4种西安市典型城市街区单元绿地空间格局模式,明晰了碳储量分布特征以及绿地空间格局对碳储量的影响机制,提出了城市街区单元绿地空间格局碳汇效益优化方法,发现碳储量与斑块类型面积(CA)、景观形状指数(LSI)呈极显著正相关关系,与聚集度(AI)呈极显著负相关关系。各类绿地空间格局碳储量大小为多核心辐射型>散点分布型或廊道穿越型>单核心辐射型,建议在单核心辐射型街区单元优化中增加植物群落层次结构,并增加高固碳植物种类及数量,提升样方内年固碳量。【结论】从中观尺度讨论街区单元绿地空间格局与植物群落碳汇效益之间的关系,使城市中小尺度绿地发挥应有的生态系统服务功能,探索街区单元绿地空间格局的构成要素与设计方法,为低碳绿地设计提供参考,提升城市街区单元内社区生活圈的人居环境质量。 展开更多
关键词 城市街区单元 绿地空间格局 景观格局指数 碳储量 碳汇效益 植物群落设计 陕西西安
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我国城乡收入分配差距空间格局及影响因素研究——基于省际面板数据的空间杜宾模型
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作者 陈燕赟 杨林燕 《龙岩学院学报》 2024年第4期88-94,共7页
基于空间杜宾模型,利用我国31个省(自治区、直辖市)1978—2022年的面板数据,研究省际城乡收入分配差距空间格局及影响因素。结果显示,我国省际城乡收入分配差距存在空间上的依赖性和异质性。由于经济发展突出的二元性与“晋升锦标赛”... 基于空间杜宾模型,利用我国31个省(自治区、直辖市)1978—2022年的面板数据,研究省际城乡收入分配差距空间格局及影响因素。结果显示,我国省际城乡收入分配差距存在空间上的依赖性和异质性。由于经济发展突出的二元性与“晋升锦标赛”下激烈的区域竞争环境,产业就业结构与城乡结构对邻近地区有显著的短期空间溢出效应。各地区须优化产业布局、加强区域协作、深化制度改革、促进乡村产业振兴,通过就业承载力的全面提升,缩小城乡收入分配差距。 展开更多
关键词 城乡收入分配差距 空间格局 空间杜宾模型
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基于功能连接度的城市生态廊道空间范围划定研究
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作者 张浪 余浩然 +2 位作者 仲启铖 张桂莲 张青萍 《中国园林》 CSCD 北大核心 2024年第4期6-14,共9页
如何科学确定城市生态廊道空间范围是城乡规划和风景园林领域最为关心的问题之一。基于电路理论模型量化源地间物种转移廊道的功能连接度,引入经济学“效益成本比”思想构建城市生态廊道空间范围划定模型,提取生态廊道功能连接度效益成... 如何科学确定城市生态廊道空间范围是城乡规划和风景园林领域最为关心的问题之一。基于电路理论模型量化源地间物种转移廊道的功能连接度,引入经济学“效益成本比”思想构建城市生态廊道空间范围划定模型,提取生态廊道功能连接度效益成本比的拐点作为该条廊道规划建设的参照宽度。结果显示:(1)研究区共识别59个30hm^(2)以上的生态源地,其中大型生态源地多处在研究区外围,景观阻力面空间分布特征具有明显地“核心-边缘”特征;(2)基于最小成本路径模型与电路理论提取出126条生态廊道,并识别了重要生态源地、夹点及障碍点,发现障碍点与夹点空间存在明显拮抗关系;(3)整合电路理论(Circuitscape平台Pairwise模式)与分段线性回归模型划定研究区城市生态廊道的参考宽度范围处于60.27~371.83m,并对比了现有功能连接度量化方法对廊道参照宽度有潜在影响。以上研究结论可为今后城市乃至区域生态网络构建提供科学借鉴。 展开更多
关键词 风景园林 城市生态廊道 廊道宽度 功能连接度 电路理论 形态学格局分析(MSPA)
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中国市域城乡收入差距时空演化及影响因素 被引量:5
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作者 江岳坤 石鹏娟 《干旱区地理》 CSCD 北大核心 2024年第1期147-157,共11页
共同富裕是中国特色社会主义的本质要求,缩小城乡收入差距是实现共同富裕和城乡融合发展过程中不可回避的现实问题。基于2012—2021年366个市域研究单元城乡收入比的数据,综合运用核密度估计和探索性空间数据分析等研究方法对中国城乡... 共同富裕是中国特色社会主义的本质要求,缩小城乡收入差距是实现共同富裕和城乡融合发展过程中不可回避的现实问题。基于2012—2021年366个市域研究单元城乡收入比的数据,综合运用核密度估计和探索性空间数据分析等研究方法对中国城乡收入差距的时空演化特征进行探析,再借助地理加权回归模型探究各影响因素对中国不同地区城乡收入差距影响程度的空间分异特征。结果表明:(1)2012—2021年中国的城乡收入差距呈现出逐渐缩小的态势,同时各市域间城乡收入差距的相对差异也在不断缩小。(2)中国城乡收入差距的低值区主要分布在东南沿海地区以及黑龙江省和新疆维吾尔自治区的少数城市,高值区主要分布在云贵山区、西藏自治区和黄河中上游的部分城市。从全局趋势来看,中国的城乡收入差距呈现出西高东低、南高北低、中间高两边低的空间分布格局。(3)市域尺度下,中国的城乡收入差距呈现出显著的空间正相关性,城乡收入差距大的市域和城乡收入差距小的市域均趋于集聚。(4)影响因素存在区域异质性,各地区在缩小城乡收入差距、统筹城乡发展的过程中要实施因地制宜的政策。 展开更多
关键词 城乡收入差距 共同富裕 空间分布格局 时空演化 影响因素
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