Fractal Characteristics of Gravity Landform and Its SOC Mechanism

From the principle of self-organized criticality(SOC) ,this work presents our current understanding of the relationship between the morphology and the dynamics of the evolution of landforms. First,we validate the assumption:Erosional slopes may be treated as SOC systems. Thus Sand-pile models will reflect the universal process of energy dissipation within the slope accumula-tion under the self-organizing actions. And the scale and frequency of deposit landforms will be related by Fractal structure. Then,by analyzing the field data,such as landslides,rockfalls and debris flow fans,in three typical areas,the power law for the magni-tude-frequency seems very robust. Furthermore,some problems in application are discussed.