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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yunfeng Hu Yifang Ban Qian Zhang Jiyuan Liu |
| Copyright Year | 2009 |
| Description | Author affiliation: Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing, China, 100101 (Jiyuan Liu) || Department of Urban Planning & Environment, Royal Institute of Technology, Stockholm, Sweden, 10044 (Yunfeng Hu; Yifang Ban; Qian Zhang) |
| Abstract | Rapid economic development, combined with tremendous population growth and migration from rural areas, has resulted in a dramatic urbanization in the Yangtze River Delta over the last three decades. In order to develop a more quantitative understanding of urbanization trajectory in the Yangtze Delta from the late 1980s to 2005, the time-series national land cover / land-use database (NLCD), interpreted from remote sensing imagery (including Landsat TM, ETM+ and CBERS), was examined from the aspects of spatial pattern and temporal process. The results showed that the urban land in the Yangtze River Delta has increased from $2.29×10^{3}$ $km^{2}$ in the late 1980s to $4.19×10^{3}$ $km^{2}$ in 2005. The percentages of total land area in the Yangtze Delta occupied by urban environments in the late 1980s, 1995, 2000 and 2005 were 2.09%, 3.03%, 3.28%, and 3.82% respectively. During the late 1980s – 2005, the total urban expansion in this region was $1.92×10^{3}$ $km^{2},$ resulting in an annual urban expansion area (UXa) of about 118.72 $km^{2}$ per year, with an urban expansion intensity (UXr) of 83.03%. There were significant spatial trends and differences in urbanization level and urban expansion. Most urban land and urban expansion have occurred along the Huning Railway (Shanghai-Nanjing) and the Hanzhou Bay. This study also revealed substantial temporal differences in the rate at which urban areas have expanded. There was a great deal of urban growth in the late 1980s – 1995, and also in 2000 – 2005. The 1995 – 2000 period saw a slow expansion speed due to government initiatives designed to halt the loss of agricultural land. In this study, both patterns and dynamics of urban distribution and urban expansion were examined on temporal and spatial scales, and integrated to produce a comprehensive evaluation of recent urbanization trajectory in the Yangtze River Delta. |
| Starting Page | 1 |
| Ending Page | 8 |
| File Size | 1235196 |
| Page Count | 8 |
| File Format | |
| ISBN | 9781424434602 |
| DOI | 10.1109/URS.2009.5137536 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-05-20 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Urban areas Government Urban planning Spatial databases Rivers Environmental economics urbanization Remote sensing spatial pattern Image databases Cities and towns Trajectory Yangtze River Delta, China urban land area temporal process |
| Content Type | Text |
| Resource Type | Article |
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