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[1]ZHU Hua,CHENG Xian-fu,WANG Shi-hang,et al.\[J].Research of Soil and Water Conservation,2009,16(04):146-149,155.

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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 04 Page number: 146-149,155 Column: Public date: 2009-08-20

Title:: \

Author(s):: ZHU Hua^1,2, CHENG Xian-fu^1,2, WANG Shi-hang^1,2,3, XIE Yong^1,2, ZHAO Ming-song^1,2; 1. College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;
2. Key Laboratory of Natural Disaster Process and Prevention Research of Anhui Province, Anhui Normal University, Wuhu, Anhui 241003, China;
3. Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China

Keywords:: soil particle; fractal dimension; spatial distribution; environmental factors; GIS; Anhui province

CLC:: S152.4

DOI:: -

Abstract:: Based on the data of the 2nd State Soil Survey and the fractal model, the soil particle fractal dimensions of topsoil (0-20 cm) in Anhui province were calculated in this paper. Taking advantage of spatial analysis technology of GIS, the spatial distribution characteristic of soil particle fractal dimensions and their relationship with environmental factors were discussed according to the 1:500 000 soil database of Anhui province. The soil particle fractal dimensions of topsoil vary from 2.290 3 to 2.933 2.The characteristic of their spatial distribution, generally speaking, is high in the district along as well as in the South of the Yangtze River, so is the district in the North of the Huaihe River, is low in the district of JiangHuai and Dabie Mountain. The area of the soil whose fractal dimensions vary from 2.766 4 to 2.844 7 is the largest, which amounts to 65 349 km² and accounts for 48.28% of the whole area of Anhui province. The soil particle fractal dimensions of soil group differ widely each other. The fractal dimension of Limestone soils is 2.859 7 that is the highest while the fractal dimension of Skeletal soils is 2.598 1 that is the lowest. The soil particle fractal dimensions of different land use types are obviously different each other. The descending order of the fractal dimension is grassland, cultivated land, garden field and forest land. The soil particle fractal dimensions of different altitude differ greatly each other. With the altitude rising, the fractal dimension tends to descend gradually.

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