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[1]GAO Jun-liang,LI Yu-bao,YU Yi,et al.Soil Fractal Characters under Different Land Use Patterns of Mu Us Sandy Land[J].Research of Soil and Water Conservation,2010,17(06):220-223.

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Soil Fractal Characters under Different Land Use Patterns of Mu Us Sandy Land

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 06 Page number: 220-223 Column: Public date: 2010-12-20

Title:: Soil Fractal Characters under Different Land Use Patterns of Mu Us Sandy Land

Author(s):: GAO Jun-liang¹, LI Yu-bao², YU Yi³, CHI Yue-chun⁴, GAO Yong¹; 1. College of Ecology and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China;
2. College of life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang 325027, China;
3. International Center for Bamboo and Rattan, Beijing 100102, China;
4. Forestry Bureau of Erdos, Dongsheng, Inner Mongolia 017000, China

Keywords:: Mu Us sandy land; wind erosion; land use pattern; fractal dimension

CLC:: S152.3;F301.24

DOI:: -

Abstract:: The research was to provide theoretical guidance for the prevention of soil erosion and ecological construction by studying fractal characters of soil under different land use patterns of sandy land. Firstly soil fractal dimensions were discussed in seven typical sample plots on Mu Us sandy land. The relationship between fractal dimension and soil mechanical composition, as well as the relationship between land use patterns and sampling depths were analyzed in this paper. The results showed percentage composition of silt sands, superfine sands and fine sands dominates soil fractal dimension, percentage compositions of silt sands and superfine sands have very significant positive correlation with soil fractal dimension, but percentage composition of fine sands has very significant negative correlation with soil fractal dimension. Among the seven different land use patterns, the maximal soil fractal dimension is 2.51, the minimum is 1.59. The average soil fractal dimensions of top soil (0-10 cm) fall in between 1.85 and 2.34. These land use patterns range in accordance with the order of grass land>fixed dune>semi-fixed dune>farmland1>farmland2>farmland3>flowing sand. In the seven different sample plots, with different sampling depths, soil fractal dimensions have some degree of varying, but they demonstrate a linear descending trend on the whole.

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