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《Science of Surveying and Mapping》 2009-01
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Effects of changing grain size on landscape indices——A case study of the part of Xuzhou

ZHOU Xing-dong①②,YU Sheng-wen①,ZHAO Chang-sheng②,CAO Hou-long②(①School of Geoscience and Technology,Shandong University of Science and Technology,Qingdao 266510,China;②Department of territory information and surveying engineering of Xuzhou Normal University,Xuzhou Jiangsu 221116,China)  
A landscape type map based on remotedly sensed data were computed for a 441km2 region of the study area of Xuzhou with the help of TM image data and GIS,the landscape pattern analysis package FRAGSTATS3.3 was used to compute the 10 selected landscape metrics and the effects of different grains on the calculation result of landscape pattern index were analyzed.The result show that all the landscape indices have obvious grain size effects except patch richness index with the grain increased from 30m to 480m.,So as to provide a reliable basis for the evaluation of the characteristics of the landscape pattern in the region.
【Fund】: 江苏省高校自然科学基金资助项目(06KJD420184)
【CateGory Index】: Q149;P237
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