Position: Home > Articles > FRACTAL CHARACTERISTICS OF PARTICLE-SIZE DISTRIBUTION FOR SOIL OF WIND EROSION
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
2005,26
(1)
88-92
表层风蚀土壤粒径分布的分形特征研究
作 者：
郭冬梅;白英;郭炜
单 位：
内蒙古农业大学水利与土木建筑工程学院;内蒙古农业大学审计处
关键词：
风蚀土壤;分形维数;土壤粒度组成;有机质
摘 要：
本文通过对内蒙古四子王旗耕地、普通草地和围封草地地表土壤颗粒的机械组成进行分析,利用分形模型,计算了土壤粒径分布的分形维数,并探讨了风蚀土壤的分形维数与土壤粒度组成和土壤有机质含量的关系,分析了土壤在风力侵蚀过程中的分形特征,同时讨论了利用分形维数来代替土壤粒度组成表征土壤风蚀程度的可能性。表明分形维数可为风蚀土壤结构及其质地状况的评价提供1个新的定量化指标。
译 名：
FRACTAL CHARACTERISTICS OF PARTICLE-SIZE DISTRIBUTION FOR SOIL OF WIND EROSION
作 者：
GUO Dong-mei~1,BAI Ying~1,GUO Wei~2 (1.College of Water Conservancy and Civil Engineering,Inner Mongolia Agricultural University; 2.Department of Audit, Inner Mongolia Agricultural University,Hohhot010018,China)
关键词：
Soil of wind erosion;fractal dimension;granulometric composition;organic matter
摘 要：
The fractal model was applied to calculate fractal dimensions of soil particle-size distribution(PSD) based on the analysis of soil particle contents in cultivable land and grassland of Siziwangqi ,Inner Mongolia.Fractal dimension randed from 2.1086 to 2.3875. Relationship between fractal dimension of PSD and granulometric composition was analyzed, and relationship between fractal dimension of PSD and soil organic matter was also discussed.Meanwhile the possibility that fractal dimension will take the place of granulometric composition to show soil erosion degree was discussed.The fractal dimensions of particle-size distribution for soil of wind erosion can been used as a quantitative index of soil structure and texture.
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