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].

Group 1 - The core idea of the articles is the implementation of "leaf slow sweeping" measures in various parks in Beijing to preserve the beautiful autumn scenery for visitors [2][3] - Yuanmingyuan Park has become a popular destination with a nearly one-kilometer ginkgo avenue attracting large crowds, where visitors engage in photography and enjoy the autumn atmosphere [2] - The "leaf slow sweeping" initiative allows fallen leaves to accumulate, creating a soft "golden carpet" for visitors to walk on, enhancing the sensory experience of autumn [2] Group 2 - The Backstream River in the Summer Palace is praised as "Little Jiuzhai in Western Beijing," showcasing vibrant autumn colors with a mix of orange, yellow, and red leaves [3] - The unique topography of the Backstream River creates a special microclimate, contributing to the rich visual layers of autumn foliage [3] - The reflection of the colorful trees on the calm river surface forms a natural watercolor painting, further enhancing the autumn experience for visitors [3]

Core Points - Beijing parks are implementing "leaf retention" measures to prolong the beauty of autumn for visitors [2][3] - The popularity of scenic spots like the Yuyuantan Park and the Summer Palace is increasing due to the vibrant autumn foliage [2][3] Group 1 - The "leaf retention" initiative allows parks to keep fallen leaves on the ground, creating a "golden carpet" effect for visitors [2][3] - The Silver Ginkgo Avenue in Yuanmingyuan is a major attraction, drawing crowds who enjoy the picturesque scenery and take photographs [2] - The unique climate of the Summer Palace's Hexi River area enhances the visual appeal of the autumn colors, with a mix of yellow, orange, and red leaves [3] Group 2 - Visitors are actively engaging with the environment, capturing moments with the falling leaves and the autumn landscape [3] - The initiative aims to extend the enjoyment of the autumn scenery, allowing for a more immersive experience in nature [2][3] - The combination of different tree species creates a rich visual layer, enhancing the overall aesthetic of the parks during this season [3]

颐和园的后溪河被网友们誉为"京西小九寨"。这个秋天，它也"杀疯"了。后溪河位于万寿山北侧，"两 山夹一河"的地势使其拥有独特的小气候。河道两岸，白蜡、银杏、朴树、元宝枫等树木的叶子染上了 橘、黄、绯红等色彩。金黄的银杏叶与火红的枫叶相互交织，与翠绿的常青树交叠，呈现出"丹黄朱 翠"的丰富视觉层次。 来源：北京日报客户端 平静的河面如同一面镜子，将五彩斑斓的树林倒映其中，构成了一幅天然的水彩画。为了让这份秋日限 定美景多停留些时日，颐和园也特意推行"落叶缓扫"举措——不急于清扫满地落叶，任其在游廊下、池 水畔、石桥边静静堆积，将"软绵金毯"的浪漫与"斑斓落英"的诗意悄悄延长。 转自：北京日报客户端 为了让秋日的专属烂漫多延续几天，北京多家公园实施"落叶缓扫"措施，为游客最大限度保留最美秋 色。 在圆明园，三园交界至西洋楼遗址西口的近千米银杏大道上人潮涌动。这里历来是京城顶流打卡地之 一，慕名而来的游客络绎不绝。人们或穿行在金黄廊道中，或驻足于树下取景，相机快门声与欢声笑语 交织在一起。有人举着落叶轻抛，抓拍"蝴蝶"纷飞的瞬间；有人以满地金叶为前景，定格与秋景的合 影；还有摄影爱好者蹲低机位，捕捉叶片纹理与光影交 ...