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原生生态环境持续改善 珍稀植物“寄生花”连续三年如期绽放
Yang Shi Wang· 2025-11-24 11:11
央视网消息:近日,云南勐腊县县级自然保护区管护局的巡护人员在野外巡护中,观测到国家二级保护植物"寄生花"进入了开花 期。这是当地连续第三年观测到这种珍稀寄生植物稳定生长。 云南勐腊县自然保护区管护局局长陈萌介绍,他们连续三年在勐腊县自然保护区董棕堡片区监测到寄生花稳定开花,这客观反映 出这片原始林区的生态系统结构完整、原生境条件稳定,符合其生存繁殖需求。 据了解,寄生花对生存环境要求极为苛刻,是热带雨林生态系统健康的重要指示物种。其稳定出现,既得益于当地原生生态环境 的持续改善,也离不开科学规范的观测保护措施。 寄生花在国内仅分布在西藏墨脱和云南南部,种群数量稀少。目前,全球尚无成功迁地保护或人工培育的成熟技术,就地保护成 为维持其种群延续的关键途径。 在保护区山坡至半山坡的原始雨林中,猩红色花朵零星分布于林下腐殖层,直接从宿主扁担藤的根部萌出。作为我国大花草科唯 一分布的物种,寄生花无茎、无根、无叶,不具备光合作用能力,完全依赖寄生于扁担藤根部获取生长所需养分,每年仅在9月至 12月繁殖期开花。因其生活史特殊、行踪隐秘,在植物学界素有"植物幽灵"之称。 此次观测中,巡护人员按规范对寄生花的分布点位、生长状态 ...
山西平陆黄河湿地迎来首批越冬白天鹅
Xin Hua She· 2025-10-21 13:34
作者:詹彦 权永军 新华社音视频部制作 近日,位于山西省南部的平陆县黄河湿地迎来首批越冬白天鹅。白天鹅在水面嬉戏玩闹,黄河湿地变成 了美丽的"天鹅湖"。 占地6000多公顷的山西平陆黄河湿地位于山西、河南两省交界处,每年秋末冬初,白天鹅就会成群结队 地从俄罗斯西伯利亚地区陆续飞临这里越冬。近年来,随着平陆黄河湿地生态环境不断改善,每年到此 越冬的白天鹅数量在1万只左右。 ...
今年已超70天!成都“推窗见雪山”天数创同期新高
Yang Shi Xin Wen· 2025-10-21 02:08
Core Insights - Chengdu has seen a significant improvement in its ecological environment, with the number of days residents can view the snow-capped mountains increasing, reflecting a better quality of life for its citizens [1][3] Group 1: Environmental Improvement - As of October 19, 2023, Chengdu has recorded 71 days of observable snow-capped mountains this year, surpassing the historical record for the same period in 2024 [1] - The city has achieved 242 days of good air quality this year, an increase of 15 days compared to the previous year, with the good air quality rate rising by 5.4 percentage points [3] Group 2: Tourism and Urban Development - The enhanced ecological environment has attracted more tourists, leading to the development of ten designated snow mountain viewing platforms and the introduction of a snow mountain viewing index [3] - The transformation of snow mountain viewing into a planned and experiential tourism product allows both residents and visitors to better appreciate the ecological beauty of Chengdu [3]
今年前三季度,北京PM2.5浓度同比下降15%
Xin Jing Bao· 2025-10-15 06:53
此外,水环境质量也大幅改善,"水清岸绿"增添城市灵动。2024年,密云水库等集中式饮用水水源地水 质保持在Ⅱ类;全市I-Ⅲ类水质河长占比87.2%,比2020年提升23.4个百分点,增加了730公里;蜉蝣、 石蝇、石蛾等对水环境敏感的指示物种频频"现身"凉水河、亮马河等平原区河流,表明水生态环境状况 持续改善。 2024年,北京空气质量优良天数达290天,相当于近10个月都是"好天"。"差天"历年最少,重污染天数 保持在个位数水平,2024年为2天,较2020年减少8天。北京市大气污染治理成效被联合国环境规划署誉 为"北京奇迹"。 2021年,京冀津三地PM2.5年均浓度首次全部迈入"30+"阶段,2024年三地PM2.5年均浓度较2013年降幅 均超六成,空气质量实现同步大幅改善。 新京报讯(记者张璐)记者10月15日从北京市生态环境局获悉,2025年前三季度,全市PM2.5浓度为24.9 微克/立方米,同比下降15.0%。 北京晒出"十四五"生态成绩单,PM2.5连续四年稳定达到国家空气质量二级标准。"十四五"时期,北京 PM2.5年均浓度再降近两成。2024年,PM2.5年均浓度为30.5微克/立方米, ...
新疆罗布湖:碧水黄沙胡杨引客来
Xin Hua She· 2025-10-06 05:58
Core Viewpoint - The article highlights the natural beauty and ecological improvements of Rob Lake, located in the Taklamakan Desert, which has become a popular tourist destination due to ecological water replenishment from the Tarim River [1] Group 1: Location and Features - Rob Lake is situated in the Bayingolin Mongol Autonomous Prefecture, specifically in Weili County, Xinjiang, covering an area of approximately 12,000 acres [1] - The lake is a natural formation created by the waters of the Tarim River [1] Group 2: Ecological Improvements - In recent years, Xinjiang has continuously implemented ecological water replenishment to the downstream of the Tarim River, leading to sustained ecological improvements in Rob Lake [1]
英国伦敦“超级下水道”完工,有望改善泰晤士河流域生态
Sou Hu Cai Jing· 2025-09-14 08:25
(央视财经《第一时间》)经过多年建设,英国伦敦一条长达25公里的"超级下水道"近期完工,并投入使用,有望大幅改善泰晤士河流域的生态环境。 这个"超级下水道"项目的正式名称为 "泰晤士河潮路隧道",主要作用是收集未经处理的污水和雨水,将它们统一输送到污水厂进行处理,然后再将其排放 至泰晤士河中。防止暴雨后污水溢流直接流入泰晤士河。隧道主体建在伦敦原有地下管线下方,最深处在地下60多米,隧道直径7.2米,比大本钟还要宽。 隧道去年开始分段逐步启用,今年早些时候全面连通。据项目官网统计,截至今年8月,这条"超级下水道"已阻止930多万立方米污水流入泰晤士河。负责建 设"泰晤士河潮路隧道"的公司认为,项目有望显著改善附近生态。 伦敦原有的排污系统已经运行超过100年,近年来多次出现暴雨后污水溢流的情况。"泰晤士河潮路隧道"项目于2014年由伦敦市政府提出,2016年开工,造 价46亿英镑(约合人民币444亿元)。建设方预计,隧道完全投入运营后能将排入泰晤士河的污水减少95%。 转载请注明央视财经 编辑:潘煦 英国巴泽尔杰特隧道公司首席执行官 安迪·米切尔:我们将证明水质得到改善。我们还对河里的鱼类以及其他动植物进行了 ...
学而时习之|天更蓝、山更绿、水更清
Xin Hua She· 2025-08-16 04:30
Core Insights - The article emphasizes the improvement in environmental conditions, highlighting clearer skies, greener mountains, and cleaner water as significant achievements in recent times [2] Group 1 - The focus is on the enhanced quality of the environment, indicating a positive trend in ecological health [2]
南京生态好 候鸟变“留鸟”
Nan Jing Ri Bao· 2025-08-15 00:19
Core Viewpoint - The article highlights the unprecedented summer breeding of the Oriental Stork in Nanjing, indicating significant ecological improvements in the region that have allowed this rare species to thrive and remain in the area during summer months [1][7]. Group 1: Ecological Changes - The Oriental Stork has been observed breeding in the Gucheng Lake Wetland for the first time in summer, a notable change from its traditional migratory behavior [4][7]. - The ecological environment in Nanjing has improved significantly, providing sufficient food and suitable nesting sites for the storks, which traditionally migrate to northern regions for breeding [7]. - The Gucheng Lake area has undergone ecological restoration, with an increase in lake area by 6.11 square kilometers, equivalent to adding a West Lake, enhancing the habitat for wildlife [7][8]. Group 2: Economic Impact - The presence of the Oriental Stork has positively influenced local tourism, with the tourism revenue in the Gaochun District reaching 12.181 billion yuan, a year-on-year increase of 13.52%, and total visitor numbers reaching 10.095 million, up by 9.9% [8]. - The improved ecological conditions have attracted young people back to the area, fostering the development of technology-driven aquaculture and personalized ecological boutique homestays [8]. Group 3: Community Engagement - Local initiatives, such as the establishment of a natural school by a local resident, have engaged children in nature conservation, fostering a sense of responsibility towards wildlife protection [5][8]. - The return of the Oriental Stork symbolizes a harmonious relationship between humans and nature, encouraging community members to protect their environment for future generations [8].
卫星之眼“瞰变化” 解码中国生态“绿色密码”
Group 1 - The article highlights the significant ecological improvements in China's environment, particularly through satellite observations of regions like Baiyangdian and Saihanba [1][3][8] - Baiyangdian, the largest freshwater lake in North China, has seen its wetland area expand due to ecological water replenishment from the South-to-North Water Diversion Project, with water quality reaching its best level since monitoring began in 1988 [3][5] - The ecological recovery is reflected in local biodiversity, with Baiyangdian now home to 295 species of wild birds and an increase in wild fish species to 48 by 2024 [5] Group 2 - Saihanba, located near Beijing, has transformed from barren land to a forested area over 60 years, serving as a model for desertification control globally [6][8] - Satellite data from 1999 to 2020 indicates a significant increase in forest coverage in the Saihanba area, contributing to ecological protection for the Beijing-Tianjin region [8]
北京昌平:生态好 鸟儿至
Ren Min Wang· 2025-08-11 08:41
Group 1 - The article highlights the ecological improvements in Beijing's Changping District, emphasizing the increase in bird populations as a positive indicator of environmental health [1][2][3] - It discusses various conservation efforts undertaken in the region, which have contributed to the enhancement of local biodiversity [4][5] - The article notes specific species of birds that have returned to the area, showcasing the success of these ecological initiatives [6][7]