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2015, 34(4) 1140-1148 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Urban expansion and land use efficiency of Changchun |
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TIAN Fu-You, ZHANG Chu-Yi, YANG Ying, WEI Shuang-Jian, WANG Fei, YANG Ting |
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1. College of Geo- exploration Science and Technology��Jilin University��Changchun 130026��China; 2. School of Economic and Management��Jilin Agricultural University��Changchun 130118��China |
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Abstract��
On the basis of the remote sensing image (TM��ETM��WFV2) of four periods�� the author investi- gated the urban expansion and studied the urban land use efficiency of Changchun City since 1990��combining with statistical yearbook data�� The results showed that the urban built- up area continued to increase from 1990 to 2013 and expanded to all directions except the northeast direction�� The development of Changchun City alternated exter- nal expansion and internal filling and the shape of the city was simple�� The land use was influenced by urban plan- ning obviously and the city developed in an orderly way��which was beneficial to the improvement of the urban land use efficiency�� The urban land use efficiency showed fluctuation but the trend was upward overall from 1990 to 2012�� |
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Keywords��
urban expansion
urban land use efficiency
remote sensing
entropy weight method
Chang- chun
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Received Revised Online: |
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