The evolvement and driving forces of urban landscape pattern in Yanji City in the past three decades were explored based on the theory of landscape ecology and the technology of remote sensing and GIS, using the multi-source interpreted data of topographic maps in 1977 and 1986, Landsat TM images in 1992 and 2001, and ALOS image in 2008. The indices chosen are the structure of urban landscape, the average area of patches, patch density, fractal dimension, isolation index, landscape diversity and evenness index. Taking GIS as a platform to integrate and analyze data, the driving forces are summarized together with the development of Yanji City. The results show that, the landscape pattern in Yanji City changed greatly from 1977 to 2008. The area of cultivated land and built-up land increased, while grassland and woodland decreased. The urban landscape diversity, landscape fractal dimension and evenness index were all increased. The reason of urban landscape pattern change is mainly by human activity. The growth of population and economy together with industrialization and urbanization were main forces for urban landscape pattern evolvement in Yanji City. The results can provide scientific evidence for ecological landscape design and urban development planning in other regions.
DU Hui-Shi, HASI Eerdun, LI Ming-Yu
. Evolvement of Urban Landscape Pattern in Yanji City in 1977-2008[J]. SCIENTIA GEOGRAPHICA SINICA, 2011
, 31(5)
: 608
-612
.
DOI: 10.13249/j.cnki.sgs.2011.05.608
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