Content of Special Column: The 14th National Symposium for Young Geographers in our journal

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    Study on suburbanization of living and activity space
    ZHANG Yan, CHAI Yanwei
    PROGRESS IN GEOGRAPHY    2013, 32 (12): 1723-1731.   DOI: 10.11820/dlkxjz.2013.12.001
    Abstract1098)      PDF (889KB)(1342)      
    In the process of rapid suburbanization, cities in China have been experiencing drastic urban spatial restructuring as well as profound transformation of residents' ways of life and living and activity space. In recent decades, suburbanization of residents' living and activity space became the fifth wave of suburbanization following the suburbanization waves of population, industry, commerce as well as office industry. In addition, there have been the problems such as excessive comsumption of natural resources and energy, severe environment pollution, increasingly serious traffic congestion, the decline in quality of life, social polarization and spatial differentiation, etc., in the process of rapid suburbanization in transitional urban China. Therefore, there is an urgent need to introduce behavioral perspectives to the traditional study of suburbanization, which will enhance our understanding of the process and the machanism of suburbanization from the perspective of an individual's living and activity space, and also help reflect on the drawbacks of urban spatial organization and development strategies in the process of rapid suburbanization. Following this line of thinking, in this study we first tried to put forward the conceptual framework of the suburbanization of living and activity space and research methods. We argued that understanding to what degree suburban residents fulfil most routine, non-work activities within certain area around their suburan community is one of most important ways to determine developmental stages of suburanization. Besides, the concept of suburbanization of an individual's living and activity space can improve traditional suburanization studies by shifting from a single factor perspective, which maily focus on the decentralization or concentralization process of the single factors such as population, industry, commerce or office, to a comprehensive perspective, which integrate all of above factors of an individual's daily life space including residential space, work space, shopping space, recreation space and social interaction space. Then, we argued that there are two temporal dimensions and different spatial dimensions in this study. And it is important to discover the functional links between suburban territory and center city, and among different suburban areas based on residents' space-time behaviors. Furthermore, we propose that geo-narrative method is an effective way to study the process and micro-level mechanism of the suburbanization from the perspective of an individual living and activity space, which combimes life history and life course theory from sociological perspective with GIS-based visualization within the framwork of time-geography. Finally, we discussed policy implications.
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    Cited: CSCD(10)
    Characteristics of commercial bank branch networks based on complex networks theory:A case study on Bank of China in Beijing
    ZHEN Maocheng, ZHANG Jingqiu, YANG Guanglin
    PROGRESS IN GEOGRAPHY    2013, 32 (12): 1732-1741.   DOI: 10.11820/dlkxjz.2013.12.002
    Abstract1024)      PDF (5577KB)(2081)      
    Complex network theory, combined with social network technology, has been more and more widely used in the researches and applications related to realistically existing large irregular networks to find the rules of network operations and to improve operation efficiency. In human geography research, using complex network technology to analyze city economic activities can help improve the analysis and interpretation of the pattern, and the change of the pattern, of the distribution of geographic phenomena to a certain extent, and can be applied to the studies of the essential characteristics of geographic networks. In this paper, taking Bank of China as an example, using the theory of complex network and with the principle of proximity, based on data of bank branch distribution networks in the six administrative districts of Beijing, we constructed a complex network model of bank branch distribution networks with the service radius of 400 meters and 800 meters, and used GIS spatial visualization technology to analyze and interpret the network characteristics. The research shows that: (1) the bank branch networks showed a flat structure with sparsity and small world network characteristics. The flat management pattern of the bank branch networks shortens the length of typical routes, which enhances the clustering coefficient, improves network efficiency, and at the same time increases intensifies the degree of the market competition. (2) The convergence of the layout of bank branch distribution increases with the expansion of the service radius, and stability decreases. For bank branch spots in the network, best service radius is 400 meters to 800 meters; the network spots accessible by walking are more stable than the network spots accessible by public transportations. Specifically, for the bank branches with service radius less than 400 meters, since the sharing of the customers is weak, and also faced with the challenges of increasing land rent and intensifying competition, they should community-focused bank branches in order to enhance the cohesion and competitiveness of each community area. However, for the bank branches with service radius less than 800 meters, the increase of the length of typical routes causes the increase of the cost of the process and the decrease of operation efficiency. Therefore, the bank branches should diversify service features, improve the area's networking degree, enhance the survivability, and improve stability. (3) The bank branch distribution exhibit area differences. The high level nodes are showing high level of agglomeration in the areas within the 4th beltway, mainly concentrated in Financial Street, Sanyuanqiao, China World Trade Center, and CBD area. On the other hand, the node degrees show big differences at the street level. For example, on the streets of well-developed inner city areas, the network and node degree are high, while on the other streets, especially the streets close to suburban areas, there few bank branch networks, or even no nodes, indicative of financial exclusion. In the future the network planning should focus on cultivating a number of edge nodes to play leading roles, expanding the network coverage, and improving the area network service functions.
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    Cited: CSCD(10)
    Live report of the Academic Debate Contest Final at the 14th National Symposium for Young Geographers
    Young Geographers' Committee of the Geographical Society of China
    PROGRESS IN GEOGRAPHY    2013, 32 (12): 1742-1750.   DOI: 10.11820/dlkxjz.2013.12.003
    Abstract1393)      PDF (499KB)(870)      
    As a tradition of the National Symposium for Young Geographers, this is the 6th academic debate held on November 13, 2013. There were seven teams taking part in this debate and the debate topic was divided into physical geography (Natural processes or human processes: Which is the stronger driving force of the changes in the Earth System?) and human geography (Quantitative or qualitative methods: Which is more suitable for human geography research?). Both the two topics are the core and hot issues of modern geography. From the live report of the Academic Debate Contest Final, readers could find how youth geographers in China understand the current major issues of the subject. Hope that their immature opinions could attract more intersts in thinking and discussing these scientific problems.
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