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GIS spatial modeling in mountainous land evaluation |
CHEN Yingyue, GAN Shu, TIAN Yudong, ZHOU Xibing |
Institute of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China |
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Abstract Due to such factors as complex topography, thin soil and high bedrock exposure rate, the measurement of mountainous land should be adapted to local conditions for the development and utilization, and hence the suitability evaluation should be conducted first. At present, researchers in this field usually use ArcGIS spatial analysis method to do the analysis, but the process is complicated and easy to make errors. In this paper, the authors use the spatial analysis model of ArcGIS generator model to model the calculation process and the dealing process of each evaluation factor, combine every single factor to do the comprehensive factor calculation, and then get the mountain resources suitability evaluation model. These methods were applied to performing the correlation of the study area. Combined with the field work, the authors found that the evaluated result is highly identical with the suitability of land exploitation and utilization under the practical situation. The scientific character and reliability of the GIS model methods were verified. Compared with the conventional method, the methods adopted by the authors could improve the efficiency of data processing obviously. The data processing model for the sharing is also provided.
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Keywords
remote sensing image
texture segmentation
blue noise
forest vegetation
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Issue Date: 02 March 2015
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