Core Viewpoint - The article highlights the beauty of autumn in Beijing, emphasizing the vibrant colors of leaves and the enjoyment of visitors, while also addressing the negative impact of some tourists' behaviors on the environment and local wildlife [3][10][22]. Group 1: Autumn Experience - Beijing's autumn showcases a variety of colorful leaves, with parks like Tian Tan, Di Tan, and Xiang Shan displaying trees such as ginkgo, maple, and yellow horn [3][10]. - Visitors are actively engaging in activities like collecting leaves and fruits, creating unique decorations and art pieces [7][10]. Group 2: Environmental Concerns - Some tourists exhibit uncivilized behaviors, such as picking leaves from trees and climbing them for better photos, which can damage the trees [10][12]. - Reports indicate that certain trees, like persimmon trees, have been stripped of their fruits due to excessive picking, leading to broken branches and potential harm to the plants [12][22]. Group 3: Wildlife Impact - The collection of nuts and fruits by visitors can significantly affect local wildlife, as these are essential food sources for animals during winter [19][22]. - Unregulated feeding of wild animals by tourists poses health risks to the animals and can lead to pollution of water bodies [20][22].