A study in Saihanba area looked at how a 32-year-old Larix principis-rupprechtii forest affects rainfall. They found that the forest intercepted 22.87% of the rain, with 76.56% reaching the ground as throughfall. Stemflow, where water runs down tree trunks, was only 0.57%. Rainfall in July had more throughfall and stemflow, while August to October saw higher interception rates. Wind affected stemflow. The relationship between interception, throughfall, and rainfall was power and linear, while interception rates followed a power and logarithmic pattern. Stemflow was linear. Rainfall intensity didn't have a big impact.