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| Titel |
Built-up Land Expansion in Urban China |
| VerfasserIn |
Yi Chen, Zhigang Chen, Xianjin Huang |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250147024
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| Publikation (Nr.) |
 EGU/EGU2017-11114.pdf |
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| Zusammenfassung |
| Since the implementation of the reform and opening-up, rapid expansion of built-up land has
caused a rapid reduction of arable land. The Ministry of Land and Resources of the People’ s
Republic of China has strengthened the management of built-up land through the basic
arable land protection and the quota allocation of built-up land to control the urban
sprawl. In addition, the general land use planning and the annual land use plan have
been used to further ensure the effectiveness of land use management and control.
However, the trend of built-up land expansion has not been effectively restrained. The
built-up land expansion increased from 31.92 × 106 hm2 in 2005 to 38.89 × 106
hm2 in 2012. The rapid expansion of built-up land has been the major feature of
land use changes in China and has led to built-up land vacancy and inefficient land
use. This paper used a Data Envelopment Analysis (DEA) model to analyze the
changes in built-up land efficiency in 336 cities in China from 2005 to 2012 during the
implementation of National General Land Use Plan (2006-2020) (NGLUP). The results
showed that the built-up land input-output efficiency of most cities declined, and
more than half of the cities had excessive inputs of built-up land. Even in the most
developed region of China, the built-up land efficiency was relatively low. The
paper argues that the NGLUP failed to control the expansion of built-up land and
to promote intensive land use. The allocation of built-up land designated by the
Plan was not reasonable, and economic development has greatly relied on land
inputs, which need to be improved. The paper finally suggests that the built-up land
indices should be appropriately directed toward economically underdeveloped regions
in central and western China, and the establishment of a withdrawal mechanism
for inefficient land would better promote the efficient allocation of built-up land. |
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