[1]WANG An-zhou,ZHANG Gui-bin,GENG Xiu-li.Research on Urban Landscape Dynamics of Zhengzhou City during 1988-2002[J].Research of Soil and Water Conservation,2010,17(02):190-194.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 02
Page number:
190-194
Column:
Public date:
2010-04-20
- Title:
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Research on Urban Landscape Dynamics of Zhengzhou City during 1988-2002
- Author(s):
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WANG An-zhou, ZHANG Gui-bin, GENG Xiu-li
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Institute of Resources and Environment, College of Environment and Planning, He’nan University, Kaifeng, Henan 475004, China
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- Keywords:
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landscape pattern; 3S technologies; urban growth; Zhengzhou city
- CLC:
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F301.24
- DOI:
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- Abstract:
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Based on remote sensing images in 1988, 1995 and 2002, the principle of landscape ecology and the techniques of RS and GIS, this paper comprehensively analyzes urban landscape pattern changes and driving factors in Zhengzhou city by remote sensing image interpretation, landscape pattern indexes for selection and calculation, stepwise regression analysis. The area of construction land and forest land increased rapidly while that of cultivated land decreased significantly. Construction land area increased 85.95 km2 during 1988-2002, which was transformed mainly from the resident and irrigable land. The patch characteristics of urban landscape changed obviously. The patch number, the edge density, the diversity index and the fragmentation index of landscape increased by 28.82%, 9.64%, 0.97% and 14.63% respectively, while the patch fractal dimension decreased from 0.137 in 1988 to 0.118 in 2002, which meant that the who1e shape turned irregular and the fragment of the landscape degree became serious. The gradient features of urban landscape pattern were analyzed based on the profile graph of land use degree, there was obvious diversification in different direction and the NW-SE is urban expansion’s central axis. Urban expansion entered fast growing period from 1990, internal filled growth of Zhengzhou city centralized mainly within the third ring road while extensive expansion between the third ring road and ringroad.