Spatial and Temporal Evolution of Urban Expansion in Oasis Cities: A Case Study of Ganzhou District in Zhangye City

DOI

10.2991/iceep-18.2018.102How to use a DOI?

Keywords

urban expansion; spatio-temporal evolution; characteristics; Ganzhou District, Zhangye City

Abstract

Urban land use expansion is the main characteristic of traditional urbanization, and which is one of the most significant features of urbanization in China. Taking the typical oasis town of Ganzhou District in Zhangye City as the research case, the paper quantitatively analyzed the process and characteristics of the spatio-temporal evolution of urban expansion in Ganzhou District from 1987 to 2011 with the help of the expansion speed and intensity model and Equal fan analysis method. The results showed that: (1) From 1987 to 2011, urban land expanded rapidly with an increase in an area of 5305.56hm2, the expansion rate was 2.40%, the expansion intensity index was 0.60, and the main expansion directions were Northwest, Northeast, and East; (2) there are 5 expansion types, respectively are General stable expansion, low speed expansion, medium-speed extension, rapid expansion and high speed expansion, the expansion direction of each type was different; (3) from 1987 to 1995, cities and towns mainly expanded to the Southeast and Northwest, and the expansion strength of all directions were significantly different. From 1995 to 2000, the cities and towns were expanded to the South, Northeast, Northwest, and East. From 2000 to 2006, the expansion direction mainly to the North, followed by the Southwest and the East. From 2006 to 2011, the urban expansion mainly extended to the Northwest, followed by the Northeast and the West.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Xuebin Zhang
AU  - Jun Luo
PY  - 2018/09
DA  - 2018/09
TI  - Spatial and Temporal Evolution of Urban Expansion in Oasis Cities: A Case Study of Ganzhou District in Zhangye City
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 581
EP  - 586
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.102
DO  - 10.2991/iceep-18.2018.102
ID  - Zhang2018/09
ER  -