Core Viewpoint - The article highlights the efforts made by Beijing's parks to extend the viewing period of autumn leaves through a practice called "slow sweeping," allowing visitors to enjoy the beauty of fall foliage for a longer time [2][3][4]. Group 1: Autumn Leaf Management - The National Botanical Garden has implemented measures to retain the natural beauty of fallen leaves, allowing visitors to immerse themselves in the romantic atmosphere of autumn [2]. - The Beijing Municipal Bureau of Landscape and Forestry has issued a notice emphasizing the importance of "slow sweeping" to prolong the viewing period of colorful leaves from trees like ginkgo and maple [3][6]. - Parks are adopting differentiated sweeping strategies, maintaining fallen leaves in specific areas while ensuring safety on main pathways to prevent slips [4][5]. Group 2: Visitor Experience - Various parks, including Yuyuantan Park and the Temple of Heaven, have designated areas for optimal leaf viewing, enhancing the overall visitor experience [4][6]. - The parks are also focusing on maintaining cleanliness by removing white trash and dead branches while preserving the aesthetic appeal of fallen leaves [3][4]. - The use of artistic initiatives, such as workshops for creating crafts from fallen leaves, is being promoted to engage visitors and enhance their connection with nature [7]. Group 3: Seasonal Transition - As winter approaches, parks are preparing for the transition by managing the remaining autumn foliage and ensuring the safety and cleanliness of the green spaces [5][6]. - The practice of delaying the cleaning of colorful leaves is part of a broader strategy to maintain the unique beauty of each park throughout the seasons [6].