[1]ZHOU Ping,WEN Anbang,YAN Dongchun,et al.Particle Distribution and Fractal Features of Hedge Soils With Different Hedge Heights Along the Slope Position of the Purple Sloping Cultivated Lands[J].Research of Soil and Water Conservation,2017,24(02):84-88,93.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 02
Page number:
84-88,93
Column:
Public date:
2017-04-28
- Title:
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Particle Distribution and Fractal Features of Hedge Soils With Different Hedge Heights Along the Slope Position of the Purple Sloping Cultivated Lands
- Author(s):
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ZHOU Ping, WEN Anbang, YAN Dongchun, SHI Zhonglin
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Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Key Laboratory of Mountain Environment Evolution and Its Regulation, Chengdu 610041, China
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- Keywords:
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purple soil; sloping cultivated lands; different slope positions; hedge; particle distribution; fractal dimension
- CLC:
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S152.3
- DOI:
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- Abstract:
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We compared the structure of terracing hedgerow with contour hedgerow and used the fractal theory to deal with the fractal features of hedge soils with different hedge heights along the slope position of the sloping cultivated lands in the purple soils of southeastern China. The results showed that the main particle distribution belonged to 0.002~0.02 mm of the terracing hedgerow and was 2.41% higher than the contrast treatment (sloping cultivated lands without hedgerow), which meant that the hedges could enhance the interception of eroded soils. Meanwhile, the fractal dimension with the different slope positions changed as the order:the upper slope position > the middle slope position > the lower slope position. And the fractal dimensions of the sloping cultivated lands with different hedge heights were lower than those without hedge height. The higher the hedge height was, the lower value of fractal dimension was, and the highest values of fractal dimension was the contrast treatment without hedge, followed by the sloping cultivated lands with 10 cm hedge height and with 15 cm hedge height. And correlation analysis results showed that the fractal dimension had remarkable negative correlation with contents of clay and sand. The fractal theory was also considered as a new tool to evaluate the structure and features of hedge soil on the sloping cultivated lands in the southeastern China.