Soil erosion is a big problem for the environment. Scientists are working on creating models to predict soil and water loss, plan ways to protect soil and water, and use land and water better. They looked at different types of soil erosion models and found some issues. They suggest ways to improve the models by using new research methods, focusing on certain areas, changing model parameters, testing the models, and using technology like GIS and Remote Sensing. The goal is to learn from past research and make better soil erosion models in China.