| 沙漠与沙漠化 |
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| Research on Landscape Pattern of Uxin Qi in Inner Mongolia Based on 3S Technology |
| WU Xiao-xu, ZOU Xue-yong, GE Ri-le, QIAN Jiang, WANG Ren-de |
| State Key Laboratory of Earth Surface Processes and Resource Ecology, MOE Engineering Center of Desertification and Blown-sand Control, Beijing Normal University, Beijing 100875, China |
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Abstract Based on the TM image at 30-meter resolution of Uxin Qi in 2005, the map showing landscape distribution pattern of this area is drawn out with aid of ArcView and ArcMap software. Statistical analysis has been made for the landscape cell characteristic indices, patch shape index, patch fragmentation index, patch fractal dimension and landscape heterogeneity indices. The results show that the number of patches of sandy land landscape occupied the 10 357 patches of the total 21 495 patches in Uxin Qi. Sandy land also had the largest area of 6.28×109 m2, whereas water area had the least area of only 5.36×107 m2. The land for industrial and mining purposes had the largest average area of 4.26×106 m2. Cropland land landscape had the largest patch density. The shapes of landscape patches are complex, except for that of residential land landscape; the shape index of residential land landscape is the minimum because it takes on obvious geometrical shape under the influence of human planning. Along with the increase of human activity intensity, the landscape diversity and fragmentation index decrease from natural landscape to semi-natural landscape to artificial landscape. In Uxin Qi of Inner Mongolia, the landscapes diversity index is the biggest in sandy land and the smallest in land for industrial and mining purposes; the dominance degree is the highest in residential land landscape, correspondingly, its evenness index is the lowest. The landscape fractal dimension of the whole Uxin Qi is below 1.4, showing high self-similarity degree.
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Received: 24 April 2008
Published: 07 September 2009
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2009, Vol. 29 
