| Technology Application |
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Research on Spatial Differentiating Characteristics of Landscape Pattern in Youjiang Valley by Using Remote Sensing and GIS |
| LI Xin-ping1, HAO Duo-hu1, DUAN Peng2 |
1. China University of Mining & Technology (Beijing), Beijing 100083, China;
2. China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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Abstract Using TM data acquired in 1986 and 2006 and supported by the technology of geographic information system(GIS)and the principle of landscape ecology,the authors selected some indexes of landscape heterogeneity. Taking the Pingguo County of Guangxi,a typical area in the Youjiang valley area,as the study area,this paper analyzed the landscape pattern and its dynamic change characteristics of the study area in the past 20 years. The results show that the general trend of the land-use change from 1986 to 2006 in the study area was the increase of forest,unused land and residents,and the decrease of grassland,farmland and water area. All kinds of landscape indexes of land-use change indicate the space-time response obviously,and the diversity of landscape becomes more evident. On the other hand,the dominance and fragmentation of landscape and fractal dimension become smaller,which suggests that the whole landscape of the study area is developing in the ideal direction.
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FY-2C satellite image
Mathematical morphology
Priori feature
Cloud segmentation
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Issue Date: 07 September 2011
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2011,
Vol. 23
