Coupled research between landscape pattern and ecological processes is a key topic of landscape ecology, as well as a point for deepening of comprehensive physical geography. Scale effects and scaling are challenges for ecologists. Dealing with the scale issues should follow the deep understanding of interaction michanism and scale characteristic between pattern and processes. As one of ecological processes, soil and water loss has been paid much attention. Controling soil and water loss needs a solid scientific foundation, which includes coupled study between landscape pattern and soil and water loss in different scales, analysis of landscape pattern heterogenity, conclusion of factors affecting soil and water loss, scaling approaches, coupled models, etc. These researches will contribute to theory consummation of landscape ecology, and moreover, provide guidance for ecological construction in soil erosion areas.