FRACTAL DIMENSIONS OF SOIL STRENGTHS FOR PADDY FIELDS IN CHINA

被引：0
|
作者：
PAN, JZ
LU, ZX
机构：
[1] Agricultural Engineering Col, China
来源：
JOURNAL OF TERRAMECHANICS | 1994年 / 31卷 / 01期
关键词：
Strength of materials;
D O I：
10.1016/0022-4898(94)90028-0
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Spatial variation of soil strengths for paddy fields in China was described using the concept of fractals. Soil strength was recorded with a cone penetrometer, along a series of transects, at 10 cm intervals. Fractal dimensions were calculated both from semi-variograms and from power spectral density (PSD) curves of soil strength profiles. In paddy fields after harvesting, such data gave fractal dimensions very close to 2, reflecting the characteristic nature of such paddy soils. This value implies that they were almost totally random, irrespective of site, date, direction or location of measurements. The value of fractal dimensions close to 2 corresponds to poor vehicle performance.
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页码：1 / 9
页数：9
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