The Loess Plateau area in northern Shaanxi is suitable for forest growth, but the area of ??artificial destruction is huge, causing serious water and soil erosion! To control water and soil erosion, we should take both afforestation and grass planting and engineering measures! Construction projects in small river basins intercept floods and settle sediment to form small valley plains. After the water settles, clean water flows away, leaving fertile soil. This method is very suitable for controlling the loss of loess resources! In the deep ravines of the Sichuan plateau, you can plant fine trees such as pine and birch that require a lot of water. On the slopes, you can plant drought-tolerant trees like acacia! Loess is a precious resource. Controlling soil erosion is not only a matter for this generation, but also a blessing for future generations!