内蒙古自治区呼和浩特市玉泉区，锡林公园秋色旖旎。 丁根厚摄（人民视觉） 习近平总书记强调，"搞好城市内绿化，使城市适宜绿化的地方都绿起来"。 党的二十届四中全会《建议》提出，"科学开展大规模国土绿化行动"。中央城市工作会议提出，"着力 建设绿色低碳的美丽城市""保护城市独特的历史文脉、人文地理、自然景观"。 良好生态环境是最普惠的民生福祉。当前，全国城市建成区的绿化覆盖率超过43%，城市居民"推窗见 绿、出门入园"，清新环境可感可及。各地努力让城市绿起来、美起来，不断满足人民日益增长的优美 生态环境需要。 ——编 者 福建省福州市实施"绿进万家、绿满榕城"行动—— 千年榕树延续城市记忆 福建省福州市南门兜的一棵古榕树。 林双伟摄 本报记者 刘晓宇 福州国家森林公园里，一棵千年古榕的树冠覆盖面积达1300平方米，"独木成林"的奇观每天都吸引着众 多市民和游客。"我今年70岁，在这棵树下打了30年太极，它就像一位老朋友，见证着这座城市的变 迁。"福建省福州市晋安区新店镇居民陈国强说。 福州别称"榕城"。福建省文史研究馆原馆长卢美松说："北宋年间，福州知州张伯玉倡导'编户植榕'。千 百年来，榕树与福州人民的生活紧密 ...

数据显示，全国城市建成区的绿化覆盖率超过43%，人均公园绿地面积已提升至15.91平方米。北京、 上海、深圳等城市建成"千园之城"。高质量绿化改善城市人居环境，不断提高人民群众生活品质。 在今年7月举行的中央城市工作会议上，习近平总书记说起一个故事：北宋年间，福州知州张伯玉倡 导"编户植榕"，多年后绿荫满城、暑不张盖。 在福州工作时，习近平同志倡导大家知榕、爱榕、护榕，身体力行植榕。在一篇《让榕树造福榕城》的 跋中，习近平同志这样写道："现代化的城市需要绿来点缀。" 城市中的树，增进着民生福祉，见证着发展变迁，也沉淀着历史文化，寄托着浓浓乡愁。 作为城市绿化的重要组成部分，古树名木是"有生命的文物"，在城市文明传承、文脉延续中起到重要作 用。广东广州沙面古树公园依托137棵古树资源，健全完善古树科普系统，推出古树集市和课堂等，充 分挖掘历史文化内涵；湖南长沙开展"守护古城岁月的古树名木"活动，发布"长沙古树名木生态游"四大 主题线路，生动讲好"树与城"的故事……不少城市通过打造形式多样的古树名木主题公园、举办古树文 化节等活动，更好地发挥古树名木的历史价值、生态价值和文化价值，探索将生态保护、历史传承与城 市 ...

Core Viewpoint - The article discusses the dual nature of ginkgo trees in Beijing during autumn, highlighting their aesthetic appeal contrasted with the unpleasant odor from fallen ginkgo fruits, which has become a topic of public concern and management challenge [1][9]. Phenomenon - The streets of Beijing are adorned with the golden leaves of ginkgo trees, attracting many visitors, but the ground is often littered with crushed ginkgo fruits, creating a foul smell that detracts from the beauty [6][7]. - In various locations, including parks and residential areas, the fallen ginkgo fruits create a messy and odorous environment, leading to complaints from residents and visitors alike [3][6][7]. Cause - The unpleasant odor from ginkgo fruits is attributed to the outer fleshy layer of the seeds, which contains short-chain fatty acids that release strong smells when the seeds are crushed and fermented [8]. - The ginkgo's odor serves an evolutionary purpose to attract scavengers for seed dispersal, but in urban settings, this natural function has become a nuisance [8]. Importance of Ginkgo in Beijing - Despite the odor issue, ginkgo trees are integral to Beijing's urban landscape, having been widely planted since the 1980s due to their resilience to harsh conditions and pollution [9][10]. - Ginkgo trees are favored for their ability to improve air quality and their lower allergenic potential compared to other tree species, making them suitable for urban environments [9][10]. Management Challenges - Current methods to control the odor from ginkgo fruits are limited, as the fruiting process is a natural part of the tree's lifecycle, and there are no effective technologies to prevent it [11]. - The difficulty in identifying the gender of ginkgo trees at a young age complicates efforts to manage the planting of male trees, which do not produce the odorous fruits [11]. Balancing Aesthetics and Odor Control - Cleaning efforts during the ginkgo season are intensified, with workers needing to frequently clear the streets to manage the mess and odor [12]. - Park management strategies involve a balance between maintaining the visual appeal of ginkgo trees and managing the unpleasant smell, with phased cleaning approaches being implemented [12]. Preventive Measures - Various districts in Beijing are taking proactive measures to reduce the number of ginkgo fruits, including pruning and washing pollen to lower fertilization rates [13]. - Innovative management techniques, such as mechanical harvesting of fruits before they mature, are being considered as potential solutions to the odor problem in the future [13].

Group 1: Environmental Performance and Innovations - Hebei Wuan Steel Group has achieved ultra-low emissions across its production chain, with real-time monitoring from 1,766 environmental monitoring points [1] - The company was rated as an A-level enterprise for environmental performance by the end of 2023, indicating the highest level of environmental governance in the industry [2] - The city of Wuan has seen a transformation in its steel, coking, and cement industries, with 84% of key industry enterprises achieving A-level ratings [2] Group 2: Emission Reduction Efforts - Wuan has accelerated the elimination of inefficient production capacity, shutting down all small blast furnaces and converters [2] - The transition from long-process to low-carbon, energy-saving short-process steelmaking has resulted in a reduction of 1.6 tons of CO2 and 75% of pollutant emissions per ton of steel produced [2] - New technologies, such as carbon monoxide catalytic oxidation, have been implemented, leading to a daily reduction of approximately 51 tons of emissions [3] Group 3: Air Quality Improvements - In 2024, the average concentration of carbon monoxide in Wuan was 2.1 mg/m³, a decrease of 12.5% year-on-year [4] - PM2.5 concentration in Wuan dropped to 37.2 µg/m³ in the first half of 2025, marking a 31.27% decrease compared to the previous year [4] - The number of days with good air quality reached 133, an increase of 30 days year-on-year, achieving the best air quality levels recorded [4]

Core Viewpoint - The transformation of Yamalik Mountain from a barren landscape to a green ecological barrier for Urumqi is highlighted, showcasing the successful long-term afforestation efforts and community involvement in environmental protection [1][2]. Group 1: Afforestation Efforts - The Yamalik Mountain greening project began in 1996, with over 700,000 trees planted through manual labor during the initial years due to limited resources [2]. - The "Tree on the Mountain" project initiated in 2017 accelerated the greening process, resulting in the addition of 25,000 acres of green space, surpassing the total area greened in the previous 20 years [2]. Group 2: Community Involvement - Li Zuoyu, who has been involved in the greening efforts for over 20 years, reflects on the significant changes in the environment and the role of his son, Li Ce, who joined the afforestation work after graduating from Xinjiang Agricultural University [2]. - The community's engagement in the project is emphasized, with families participating in tree planting and environmental stewardship [2]. Group 3: Environmental Impact - The successful greening of Yamalik Mountain has led to improved air quality and the return of wildlife to the area, indicating a positive ecological impact [3]. - Citizens have noted the dramatic changes in the landscape, with lush greenery replacing the previous barren conditions [4].

Core Viewpoint - The article highlights the continuous growth and development of Nagqu, the highest prefecture-level city in China, located in Tibet, emphasizing its unique geographical and environmental characteristics [1]. Group 1: Geographic and Environmental Features - Nagqu is situated in northern Tibet and is named after the Nagqu River, a tributary of the upper Yangtze River, making it the highest prefecture-level city in China with an elevation of 4,510 meters [1]. - The region is characterized by an average elevation exceeding 4,000 meters, and it continues to rise annually due to tectonic activity [1]. - Nagqu hosts several geographical records, including the highest county in China (Shuanghu County), the largest glacier in the mid-latitudes (Puruogangri Glacier), and the highest freshwater lake in the world (Cuona Lake) [1]. Group 2: Challenges of High Altitude Living - The high altitude results in low oxygen levels, with air containing only half the oxygen of sea level, and an average annual temperature below zero degrees Celsius [1]. - The region experiences a relative humidity of around 50% and over 100 days of strong winds annually, with the boiling point of water at approximately 85 degrees Celsius [1]. - Due to the lack of oxygen, residents often experience physical challenges, such as increased heart rates and changes in lip color [2]. Group 3: Urban Development and Greening Efforts - Historically, Nagqu was the only prefecture-level city in China without trees due to its harsh environment, characterized by a thick permafrost layer that hindered tree growth [3]. - Through concerted efforts, Nagqu has successfully achieved urban greening, introducing various tree species such as highland willows, spruces, and sea buckthorns, which have enhanced the city's liveliness and visual appeal [4]. - The presence of trees has transformed the urban landscape, contributing to a more dynamic and vibrant city atmosphere, as evidenced by community activities and the gathering of wildlife [4][5].