Core Viewpoint - The article highlights the vibrant autumn scenery in Beijing, particularly focusing on the best viewing spots for colorful leaves and the ongoing chrysanthemum exhibitions in various parks, emphasizing the city's natural beauty and seasonal attractions [2][3][5]. Group 1: Autumn Scenery - Beijing's parks, including Xiangshan Park and the National Botanical Garden, are experiencing peak viewing periods for colorful leaves, with Xiangshan Park reporting over 60% color change in foliage [2][3]. - The National Botanical Garden features a large artificial water cypress forest, showcasing a blend of orange and yellow hues, creating a picturesque ecological scene [3]. - Yuyuantan Park has over 85% color change in leaves, attributed to favorable weather conditions this year, and has designated several unique autumn viewing spots [4]. Group 2: Chrysanthemum Exhibitions - The 44th Chrysanthemum Exhibition at the Temple of Heaven features over 10,000 chrysanthemums, highlighting the theme "Four Elegances of Chrysanthemum" and showcasing a variety of traditional and innovative chrysanthemum designs [5][6]. - Beihai Park is reintroducing the tall "Zhangju" chrysanthemum, which can reach heights of up to 3 meters, drawing significant attention from visitors [6]. Group 3: Environmental Initiatives - Several parks in Beijing are implementing "slow leaf sweeping" practices to enhance the autumn experience for visitors while planning for the resourceful recycling of fallen leaves [7][8]. - The National Botanical Garden has a facility that processes approximately 20,000 cubic meters of green waste annually, converting it into organic substrates for soil improvement, saving around 1 million yuan in fertilizer costs each year [8][9]. Group 4: Weather Impact on Foliage - This year's autumn foliage color change has been delayed by about a week due to unfavorable weather conditions, including high temperatures and excessive rainfall in September and October [10][11]. - The physiological processes affecting leaf color change are influenced by temperature fluctuations and sunlight exposure, which were not optimal this year, leading to slower color transformation in trees like the yellow larch and maple [11].

Core Points - The 44th Chrysanthemum Exhibition at Temple of Heaven Park opened on October 28, featuring over 10,000 chrysanthemums of various types [1][3] - The exhibition will run until November 9, showcasing traditional and innovative floral designs [5][6] Group 1: Exhibition Highlights - The exhibition features a theme called "Chrysanthemum Elegance," with distinct display areas such as "Hidden East Ridge" and "Proud Frost and Cold" showcasing different chrysanthemum varieties [3] - A notable area is the large chrysanthemum section, where horticulturists have cultivated specimens with diameters of nearly 3 meters, incorporating modern design elements [3][5] - The exhibition includes 500 chrysanthemum varieties, with 80 traditional Chinese varieties and 20 international representative varieties [3] Group 2: Additional Attractions - The exhibition at Purple Bamboo Park features over 6,000 pots of chrysanthemums, focusing on key areas within the park [5][6] - The total flower count for the Purple Bamboo Park exhibition is over 6,000 pots, with a variety of chrysanthemum types used to create diverse floral displays [6] - The ginkgo trees in Temple of Heaven Park are also at their peak viewing period, enhancing the autumn experience for visitors [6]