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Qiang Li      
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Qiang Li published an article in July 2016.
Top co-authors
Jin Chen

38 shared publications

Xi Yu

34 shared publications

Xuemin Liu

3 shared publications

College of Resource Science and Technology, Beijing Normal University

Jing Guo

1 shared publications

College of Resources Sciences & Technology, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China

Ruiyin Dou

1 shared publications

College of Resource Science and Technology, Beijing Normal University

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Article 0 Reads 1 Citation A method characterizing urban expansion based on land cover map at 30 m resolution Xi Yu, BingQi Zhang, Qiang Li, Jin Chen Published: 21 July 2016
Science China Earth Sciences, doi: 10.1007/s11430-016-5304-x
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Based on the global land cover data at 30 m resolution (GlobeLand30) in the year 2000 and 2010, the urban expansion process of 320 cities in China was analyzed using lognormal regression, and the expansion model were established. Three metrics were presented for the models, including the peak position, the full width at half maximum, and the skewness. It was found that the three metrics could reveal different patterns of the urban expansion process of cities with different sizes. Specifically, cities with larger size tend to expand outward strongly, and their expansion intensity and influence are likely to be higher. Moreover, most cities’ expansion occurs around the urban core with spatially limited influence. In addition, it was also found that the city’s expansion intensity is related to the city size. These results showed that the lognormal regression model could describe the distribution of urban expansion with effectiveness and robustness.
CONFERENCE-ARTICLE 0 Reads 0 Citations Study on the Smart Growth Resource-Based City in China: A Case Study of Renewing Cities Ruiyin Dou, Xuemin Liu, Qiang Li Published: 09 June 2015
8th Conference of the International Forum on Urbanism (IFoU), doi: 10.3390/ifou-A003
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The resource-based city shows a gradually decline behind the external prosperity in China. It has been identified that there were 262 resource-based cities in China . According to the different stages of developmentthe, the resource-based cities were divided into four types: growing, maturing, exhausting and renewing. Currently, 23 of them which have entered the exhausted post-transition phase of resource were called renewing cities. Thus, the focus of this paper is on the smart growth of renewing cities, whose core elements can be extracted from the essential characteristics showed in the process. Based on the thought of “smart growth” and aspects of “moderate exploitation”, “green ecology” and “social comfort”, the analytic framework of "smart growth", with 9 goals and 40 sets of variables relationships established, is formed. According to the statistical description and analysis of the existing data, in 40 sets of variables, there are 22 sets in line with the "smart growth" requirements; while 15 sets not ; and another 3 sets can not be judged. Finally, based on the results of the analysis, the path of “smart growth” for renewing city can be explained from aspects of city infrastructure supply, land development and utilization, energy saving and emission reduction, environmental protection and city agglomeration promotion, which are the key ares that government should focus on as well.

CONFERENCE-ARTICLE 1 Read 0 Citations Urban Density, Accessibility and Energy Consumption in the Transport Sector: Analysis of 30 Cities in China Jing Guo, Jing Zhang, Qiang Li, Xuemin Liu Published: 08 June 2015
8th Conference of the International Forum on Urbanism (IFoU), doi: 10.3390/ifou-E002
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The growth and diversification of transport demand accompanied with social and economic development led to increasing energy consumption in transport sector. In order to find a way that can not only contribute to reducing transportation energy consumption but also fully meet the transport demand, the research firstly formulated three indicators. Urban density implies population size and intensity of social and economic activities that is related to transport demand. Accessibility is defined by per capita road area and average bus numbers of ten thousand people and reflects transport conditions of private and public traffic. Per capita energy consumption in transport sector was used to characterize environmental effects. The data of urban density and accessibility was collected from the National Statistical Yearbook, while the data of transport energy consumption was obtained by conversion of DMSP/OLS (Defense Meteorological Satellite Program/Operational Lines-can System) night lighting data which is a sign of human activity. Secondly, considering the different levels of transport infrastructure and economic development in different regions of China, only 30 provincial capital cities were selected to analyze the relationships of the three indicators mentioned above. Based on relationship analysis, 30 cities were divided into three patterns. It was founded that the first pattern would be optimal because of a good match of transport demand and supply coupled with low energy consumption. The second pattern is non-ideal, since it is at high level of energy consumption and less balanced between transport demand and supply. The third pattern should improve accessibility and reduce energy consumption. Finally, some suggestions about urban transport development that are suitable to local conditions were proposed for different urban patterns.