[an error occurred while processing this directive] Global Geology 2021, 24(3) 177-182 DOI:     ISSN: 1673-9736 CN: 22-1371/P
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Article by Sun HAWQ
 
 
 
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 A voxel － based fine － scale 3D landscape pattern analysis using laser scanner point clouds
 SUN Hongzhan and WU Qiong
 College of Geo-Exploration Science and Technology，Jilin University，Changchun 130026，China
Abstract:  The landscape pattern metrics can quantitatively describe the characteristics of landscape pattern and are widely used in various fields of landscape ecology． Due to the lack of vertical information，2D landscape metrics cannot delineate the vertical characteristics of landscape pattern． Based on the point clouds，a highresolution voxel model and several voxel-based 3D landscape metrics were constructed in this study and 3D metrics calculation results were compared with that of 2D metrics． The results showed that certain quantifying difference exists between 2D and 3D landscape metrics． For landscapes with different components and spatial configurations，significant difference was disclosed between 2D and 3D landscape metrics． 3D metrics can better
reflect the real spatial structure characteristics of the landscape than 2D metrics．
Keywords:  3D landscape metrics   3D laser scanner   voxel   point clouds  
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