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[1]LI Baojie,GU Hehe,JI Yazhou.Effects of Spatial Grain Size on Landscape Pattern in Reclaimed Mining Area[J].Research of Soil and Water Conservation,2015,22(04):253-257,264.

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Effects of Spatial Grain Size on Landscape Pattern in Reclaimed Mining Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 04 Page number: 253-257,264 Column: Public date: 2015-08-28

Title:: Effects of Spatial Grain Size on Landscape Pattern in Reclaimed Mining Area

Author(s):: LI Baojie^1,2, GU Hehe², JI Yazhou^1,2; 1. College of Urban and Environmental Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China;
2. School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China

Keywords:: Xuzhou; reclaimed mining area; landscape metrics; effects of spatial grain size

CLC:: F301.24

DOI:: -

Abstract:: The grain effect of 17 landscape indices and the change characteristics, fitting functions, variation coefficient and the optimal grain size range of landscape indices with a scale 10~300 m were analyzed using GIS and method of landscape ecology based on the land use data of Jiuli coal mining area, Xuzhou at 1:10 000 scale from 2000(before reclamation) to 2013(after reclamation). The results showed that the grain effects had 5 types, such as gradually decreasing, gradually increasing, part scale effect type and randomly changing with increasing grain, and the trend of 10 landscape pattern indices could be simulated by different function models(R²>0.94). The trend of the landscape pattern indices was uniform in pre and post reclamation,while the fitting functions and variation coefficient changed a bit, such as inconsistent of fitting functions and decreasing of variation coefficient. The range of 20~40 meters was selected as the optimal landscape granularity suit to landscape index analysis in Jiuli coal mining area, Xuzhou at 1:10 000 scale.

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