The researchers studied how different types of plants are distributed on slopes in Nuozhadu Nature Reserve. They used digital maps to create a 3D map showing where different plants grow based on the slope's direction and altitude. They found that most slopes have the same dominant plant type, but some slopes have different types of plants. The direction of the slope has a big impact on where certain plants grow, especially for forests that need a lot of rain. Overall, they confirmed which slopes are best suited for different types of plants in the reserve.