Abstract
Soil structure consists of a lot of soil parti-cles, aggregates and their arrangements. Soft X-ray Digital Radiography （SXDR）was developed. SXDR is a methodology for evaluation of soil structure from a view point that a soft X-ray image of soil has informa-tion of soil structure. In this paper, overview of new methodology SXDR, and some examples of information of soil structure by using this methodology were indi-cated. In the SXDR, an analog image taken by using soft X-ray radiography was converted to a digitalone, and the digital image was analyzed with image pro-cessing such as statisticalanalysis, Semivariogram and Fourier Transform. Some results by using the SXDR were examined on information of soil structure. Some results appeared to be related to soil structure. The SXDR provided to evolution of the studies on soil struc-ture by using soft X-ray.
