中文摘要：

分数维的方法是一个新方法估计土壤结构。是在与象侵蚀和另外的水文学过程一样的土壤的物理性质有关的研究的一个有用工具被显示了。分数维的尺寸被用来在 Ziwuling 山上在植物的继任的不同阶段在土壤学习土壤结构。土地利用和植被类型包括了耕地，荒地，草地，灌木土地的二种类型，和森林的三种类型。草地，灌木陆地，和 forested 区域在自然地发生了的植物的继任代表了连续统，当陆地在 1862 被放弃。扰乱并且没受到干扰的土壤样品从深度从十种植被类型被收集 0 10， Ziwuling 山上的 10 20，和 20 30 厘米，在有大约 1500 m 的举起的一个地点。颗粒大小分发被吸量管方法决定，总数尺寸分发被湿 sieving 决定。结果被用来计算粒子和总数分数维图形尺寸。结果证明粒子和总数分数维图形尺寸在植被类型之间变化了。在粒子分数维图形尺寸和有直径 【0.001 公里，而是在粒子分数维图形尺寸和另外的颗粒大小班之间的没有关系的粒子的重量之间有一道正相关。粒子分数维的尺寸在与农田相比的生长土壤是更低的，在分数维的尺寸和植被类型之间没有一致关系。总数分数维图形尺寸断然与 】0.25 公里总数的重量被相关。总数分数维图形尺寸与农田相比在生长土壤是更低的。与粒子分数维图形尺寸相对照，总数分数维图形尺寸在与植物的继任联系的土壤结构描述了变化。这研究的结果显示那种总数分数维图形尺寸在与粒子分数维图形尺寸相比描述土壤结构和功能是更有效的。

英文摘要：

Fractal method is a new method to estimate soil structure. It has been shown to be a useful tool in studies related to physical properties of soil as well as erosion and other hydrological processes. Fractal dimension was used to study the soil structure in soil at different stages of vegetative succession on the Ziwuling Mountains. The land use and vegetation types included cultivated land, abandoned land, grassland, two types of shrub land, and three types of forests. The grassland, shrub land, and forested areas represented a continuum in vegetative succession that had occurred naturally, as the land was abandoned in 1862. Disturbed and undisturbed soil samples were collected from ten vegetation types from depths of 0-10, 10-20, and 20-30 cm on the Ziwuling Mountains, at a site with an elevation of about 1 500 m. Particle size distribution was determined by the pipette method and aggregate size distribution was determined by wet sieving. The results were used to calculate the particle and aggregate fractal dimension. The results showed that particle and aggregate fractal dimensions varied between vegetation types. There was a positive correlation between the particle fractal dimension and the weight of particles with diameter 〈 0.001 mm, but no relationship between particle fractal dimension and the other particle size classes. Particle fractal dimension was lower in vegetated soils compared to cropland and there was no consistent relationship between fractal dimension and vegetation type. Aggregate fractal dimension was positively correlated with the weight of 〉 0.25 mm aggregates. Aggregate fractal dimension was lower in vegetated soils compared with cropland. In contrast to particle fractal dimension, aggregate fractal dimension described changes in soil structure associated with vegetative succession. The results of this study indicate that aggregate fractal dimension is more effective in describing soil structure and function compared with particle fractal dimension.