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Research on the Terrain Differential Characteristics of Land Use Spatial Pattern Based on RS and GIS Technology

LIU En-qin et al (Key Laboratory of Information Technology and Application of Land and Resources,Chengdu University of Technology,Chengdu,Sichuan 610059)  
Based on RS and GIS technology,the land use spatial pattern of main land use types at different elevation and slope zones and the diversity characteristics of land use types at different elevation and slope zones in Maerkang County were analyzed.The results showed that the spatial pattern of various land use types had certain spatial distribution characteristics because of the influences of height and slope gradient.The cultivated land mainly distributed in the range with the slope gradient of less than 25°.The unused land mainly distributed in the areas with high height and long distance from human activity range.The diversity of land use types decreased with the increasing of elevation and slope gradient.There was less cultivated land in the research area with the slope gradient of more than 25°,which indicated that the power of returning the cultivated land to forest and grass in this county should be strengthened.
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