| 北京城市蔓延的测度与分析 |
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| 引用本文： | 蒋芳,刘盛和,袁弘,张擎.北京城市蔓延的测度与分析[J].地理学报(英文版),2007,17(4):469-478. |
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| 作者姓名： | 蒋芳 刘盛和 袁弘 张擎 |
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| 作者单位： | Institute of Geographic Sciences and Natural Resources Research CAS，Institute of Geographic Sciences and Natural Resources Research CAS，Institute of Geographic Sciences and Natural Resources Research CAS，Institute of Geographic Sciences and Natural Resources Research CAS，Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100039 China，Beijing 100101 China，Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100039 China，Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100039 China |
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| 基金项目： | National Natural Science Foundation of China, No.40571056，Sustentation Fund on Doctoral Thesis from Beijing Science and Technology Committee, No.ZZ0608 |
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| 摘 要： | Concerning about the rapid urban growth in recent China, this study takes Beijing as a case and puts forward that urban sprawl can be measured from spatial configuration, urban growth efficiency and external impacts, and then develops a geo-spatial indices system for measuring sprawl, a total of 13 indicators. In order to calculate these indices, different sources data are selected, including land use maps, former land use planning, land price and floor-area-ratio samples, digitized map of the highways and city centers, population and GDP statistical data, etc. Various GIS spatial analysis methods are used to spatialize these indices into 100m×100m cells. Besides, an integrated urban sprawl index is calculated by weight sum of these 13 indices. The application result indicates that geo-spatial indices system can capture most of the typical features and interior differentia of urban sprawl. Construction land in Beijing has kept fast growing with large amount, low efficiency and disordered spatial configuration, indicating a typical sprawling tendency. The following specific sprawl features are identified by each indicator: (1) typical spatial configuration of sprawling: obvious fragmentation and irregularity of landscape due to unsuccessful enforcement of land use planning, unadvisable pattern of typical discontinuous development, strip development and leapfrog development; (2) low efficiency of sprawl: low development density, low population density and economic output in newly developed area; and (3) negative impacts on agriculture, environment and city life. According to the integrated sprawl index, the sprawling amount in the northern part is larger than that in the southern, but the sprawling extent is in converse case; most sprawling area include the marginal area of the near suburbs and the area between highways, etc. Four sprawling patterns are identified: randomly expansion at urban fringe, strip development along or between highways, scattered development of industrial land, leapfrog development of urban residence and industrial area.
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| 关 键 词： | 北京 城市蔓延 测度 分析 |
| 收稿时间： | 20 January 2007 |
| 修稿时间： | 2007-01-20 |
Measuring urban sprawl in Beijing with geo-spatial indices |
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| Jiang?Fang,Liu?Shenghe,Yuan?Hong,Zhang?Qing.Measuring urban sprawl in Beijing with geo-spatial indices[J].Journal of Geographical Sciences,2007,17(4):469-478. |
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| Authors: | Jiang Fang Liu Shenghe Yuan Hong Zhang Qing |
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| Institution: | 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;Graduate University of Chinese Academy of Sciences, Beijing 100039, China
2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China |
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| Abstract: | Concerning about the rapid urban growth in recent China, this study takes Beijing as a case and puts forward that urban sprawl
can be measured from spatial configuration, urban growth efficiency and external impacts, and then develops a geo-spatial
indices system for measuring sprawl, a total of 13 indicators. In order to calculate these indices, different sources data
are selected, including land use maps, former land use planning, land price and floor-area-ratio samples, digitized map of
the highways and city centers, population and GDP statistical data, etc. Various GIS spatial analysis methods are used to
spatialize these indices into 100m × 100m cells. Besides, an integrated urban sprawl index is calculated by weight sum of
these 13 indices. The application result indicates that geo-spatial indices system can capture most of the typical features
and interior differentia of urban sprawl. Construction land in Beijing has kept fast growing with large amount, low efficiency
and disordered spatial configuration, indicating a typical sprawling tendency. The following specific sprawl features are
identified by each indicator: (1) typical spatial configuration of sprawling: obvious fragmentation and irregularity of landscape
due to unsuccessful enforcement of land use planning, unadvisable pattern of typical discontinuous development, strip development
and leapfrog development; (2) low efficiency of sprawl: low development density, low population density and economic output
in newly developed area; and (3) negative impacts on agriculture, environment and city life. According to the integrated sprawl
index, the sprawling amount in the northern part is larger than that in the southern, but the sprawling extent is in converse
case; most sprawling area include the marginal area of the near suburbs and the area between highways, etc. Four sprawling
patterns are identified: randomly expansion at urban fringe, strip development along or between highways, scattered development
of industrial land, leapfrog development of urban residence and industrial area.
Foundation: National Natural Science Foundation of China, No. 40571056; Sustentation Fund on Doctoral Thesis from Beijing Science and
Technology Committee, No.ZZ0608
Author: Jiang Fang (1979–), Ph.D, specialized in the study on regional and urban sustainable development, land use planning and urban
agriculture. |
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| Keywords: | urban sprawl measurement geo-spatial indices Beijing |
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