摘要
土壤大孔隙的大小、形状和分布对水及溶质在土壤中的运移有着深刻影响,由于土壤大孔隙的分布呈现分形规律,根据采用CT扫描法得到的原状土柱各断面图像,采用计盒维数法计算出各断面土壤大孔隙的分形维数。
The size, shape, and distribution of macropore play an important role in the transport of water and solutes through soil. Because the distribution of macropore exhibit fractal rule, this study applies the method of box-counting dimension to obtain fractal dimension of macropore in every section base on the scanning images of every section in undisturbed soil by CT.
出处
《灌溉排水学报》
CSCD
北大核心
2005年第4期26-28,40,共4页
Journal of Irrigation and Drainage
基金
水资源开发教育部重点实验室(河海大学)开放基金项目(2003400319)
关键词
大孔隙
CT扫描
分形维数
macropore
CT scanning
fractal dimension
