Abstract:This paper reviewed the studies on the theory and methods for the spatial variation and scale variation in landscape pattern and soil and water loss, and discussed the advance in scale and scaling of soil and water loss. Actually, the continuum between simple scaling and multiscaling is more common in nature. Whether both scaling-up and scaling-down are possible or not is related to the scale variation property. In general, it is probable for scaling up or scaling down with simple scaling, while it is not w...