A GIS-based urban landscape study of Lanzhou city, China

Author

Meng, Caihong ; Yang, Yongchun ; Hu, Haojie

Author_Institution

Coll. of Environ. & Planning, Liaocheng Univ., Liaocheng, China

fYear

2011

fDate

24-26 June 2011

Firstpage

1

Lastpage

5

Abstract

The study area includes four districts (Chengguan, Qilihe, Anning, and Xigu) of Lanzhou city, whose total area and population is 227.98 km² and 1,800,000 respectively. In this study, we aim to resolve two questions: (1) from the spatial analysis, we want to know what changes have happened on urban landscape characteristics from 1976 to 2004? (2) What is the main driving force behind the changes? This research is based on American quick bird remote sensing image of 2004 and the topographical map of Lanzhou city, the detailed land use data and some cadastral data in 1976 are collected as well as the current land use data. Based on the calculated result, we analyse the change characteristics of the class-level metrics and landscape-level metrics. Our results show that the change trend in landscape can be effectively captured by spatial analysis using the remote sensing image and GIS data processing technique.

Keywords

geographic information systems; geophysical image processing; terrain mapping; AD 1976 to 2004; American quick bird remote sensing image; Anning; Chengguan; China; GIS data processing technique; GIS-based urban landscape study; Lanzhou City; Qilihe; Xigu; class-level metrics; landscape-level metrics; spatial analysis; topographical map; Agriculture; Cities and towns; Environmental factors; Indexes; Measurement; Roads; Shape; GIS-based; Lanzhou city; landscape metrics; urban landscape;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoinformatics, 2011 19th International Conference on

Conference_Location

Shanghai

ISSN

2161-024X

Print_ISBN

978-1-61284-849-5

Type

conf

DOI

10.1109/GeoInformatics.2011.5981091

Filename

5981091