| 分形理论在描述土壤大孔隙结构中的应用研究 |
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| 引用本文： | 冯杰,郝振纯.分形理论在描述土壤大孔隙结构中的应用研究[J].地球科学进展,2004(Z1). |
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| 作者姓名： | 冯杰 郝振纯 |
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| 作者单位： | 河海大学水资源环境学院 河海大学水资源环境学院 江苏 南京 江苏 南京 |
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| 基金项目： | 河海大学科技创新基金(编号:2002409843) |
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| 摘 要： | 土壤大孔隙结构对土壤中水流及溶质运移以及地下水环境有着深刻影响。确定土壤大孔隙结构,可以很好地理解和预测水及溶质在有大孔隙土壤中的运移,保护地下水环境。由于土壤大孔隙的分布呈现分形规律,因此可以采用分形理论研究土壤大孔隙结构。根据CT对原状土柱各断面的扫描图像,得到了各断面土壤大孔隙的分形维数,为进一步研究土壤大孔隙的水力性质奠定了基础。
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| 关 键 词： | 土壤 大孔隙 CT扫描 分形维数 |
STUDY ON APPLICATION OF FRACTAL THEORY TO DESCRIBE SOIL MACROPORE STRUCTURE |
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| FENG Jie,HAO Zhen-chun.STUDY ON APPLICATION OF FRACTAL THEORY TO DESCRIBE SOIL MACROPORE STRUCTURE[J].Advance in Earth Sciences,2004(Z1). |
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| Authors: | FENG Jie HAO Zhen-chun |
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| Abstract: | The structure of maeropore phys an important role in water flow and solutes transport in soil, and influences the environment of underground water. Determining the structure of macropore can better understand and predict the behavior of water and solutes in macroporous soil, and help to protect the environment of underground water. Because of the distribution of macropore exhibit fractal rule, fractal theory can be used to study the structure of macropore. This study obtain fractal dimension of macropore in every section base on the scanning images of undisturbed soil by CT. It establishes the base for further study the hydraulic characteristics of macropores. |
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| Keywords: | Soil Macropore CT scanning Fractal dimension |
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