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【人民网】“天-空-地”一体化监测显示:九寨沟震后生态恢复显著
Ren Min Wang· 2025-11-18 02:05
11月7日至13日,中国科学院空天信息创新研究院研究员、联合国教科文组织国际自然与文化遗产 空间技术中心(HIST)副主任付碧宏带领的科研团队,与九寨沟世界遗产管理局联合开展九寨沟世界 自然遗产地"天-空-地"一体化监测和野外实地科考活动,利用多套多旋翼无人机和多类型载荷,开展无 人机遥感综合监测和卫星遥感解析结果的野外验证。 据了解,自2017年8月8日九寨沟发生7.0级地震以来,空天院科研团队和九寨沟管理局持续利用多 平台、多时相、多波谱、多维度的卫星遥感数据和无人机航测遥感数据,结合野外实地测量和考察验 证,系统开展了九寨沟世界遗产地核心区的植被覆盖变化、生态恢复状况、滑坡及次生地质灾害治理等 方面的监测与评估,特别是连续八年监测地貌和生态景观发生较大变化遗产点的动态变化与恢复过程, 建设了九寨沟世界自然遗产地保护与恢复的空间信息监测系统,为九寨沟世界遗产地震后可持续发展提 供了重要科学数据支持和空间信息技术支撑。 综合监测评估显示,经过8年自然恢复,辅以人工治理,九寨沟遗产地震后生态恢复成效显著,基 础设施建设较为完善。九寨沟遗产地的植被率由震前的83.35%降至震后的79.64%,随后逐步回升, 2 ...
【科技日报】天空地一体监测精准把脉九寨沟震后生态恢复进程
Ke Ji Ri Bao· 2025-11-14 01:38
八年,可以让一棵幼苗长成树木,也能让一道"伤疤"重披绿装。2017年,一场7级地震打破了"童话 世界"四川九寨沟的宁静,让这一世界自然遗产保护地遭遇重创。如今,科学家用卫星遥感和无人机, 为我们带来了九寨沟"伤疤"愈合情况的最新报告。 "为了系统开展九寨沟世界自然遗产保护地的植被覆盖变化、生态恢复状况、滑坡及次生地质灾害 治理等方面的监测与评估,我们建设了九寨沟世界自然遗产地保护与恢复的空间信息监测系统,为九寨 沟震后可持续发展提供了重要科学数据支持和空间信息技术支撑。"空天院研究员、联合国教科文组织 国际自然与文化遗产空间技术中心副主任付碧宏介绍。 11月7日至13日,中国科学院空天信息创新研究院(以下简称"空天院")的科研团队联合九寨沟世 界遗产管理局,通过"天—空—地"一体监测和野外实地科考,系统评估了九寨沟自2017年地震以来的生 态恢复与灾害治理成效。结果显示,经过八年的自然恢复与科学修复,九寨沟的生态景观已显著恢复, 地质灾害得到有效控制。 "尽管整体恢复态势良好,但受地震影响较大的遗产点及关键区段的高陡边坡带,仍有继续发生崩 滑、泥石流等地质灾害的潜在风险,还需持续开展灾害工程治理和长期的生态环 ...
在埃及荒漠中浇灌发展绿洲(共创繁荣发展新时代)
Ren Min Ri Bao· 2025-10-01 22:11
Core Viewpoint - The article highlights the significant impact of the Oweinat water well project in Egypt, led by China National Petroleum Corporation (CNPC), in transforming desert land into arable farmland, thereby contributing to Egypt's economic development and improving the livelihoods of local communities [5][6][10]. Group 1: Project Overview - The Oweinat water well project aims to drill 3,000 wells over five years, covering an irrigation area of 3,000 square kilometers [6]. - As of mid-September 2023, 141 wells have been completed, with 125 wells finished in the first phase, providing irrigation for crops such as wheat, alfalfa, and corn [6][7]. - The project employs approximately 190 Chinese and Egyptian workers, operating 24 hours a day with nine drilling teams [6]. Group 2: Agricultural Impact - The irrigation provided by the water wells has led to significant agricultural productivity, with corn yielding two harvests per year and wheat producing 3 tons per feddan (approximately 4,200 square meters) [7]. - The project has also benefited sugar beet farms in Minya Province, where the water wells support irrigation for 30,000 feddans, resulting in increased yields [7]. Group 3: Community Benefits - The water well project has been described as a "timely rain" for local communities, addressing water scarcity issues and improving living conditions [8]. - Local farmers have expressed gratitude for the stable irrigation sources, which have led to flourishing crops and economic opportunities [8][10]. Group 4: Technical and Operational Challenges - The project faces challenges such as complex desert geology, extreme weather conditions, and logistical issues related to heavy drilling equipment [9]. - CNPC's drilling teams have achieved a remarkable efficiency of drilling one well approximately every seven days, earning recognition from the Egyptian government [9]. Group 5: International Cooperation - The project exemplifies successful international cooperation in addressing food security and ecological restoration challenges [10]. - CNPC aims to further expand cooperation with Egypt in agricultural development and other sectors as bilateral relations deepen [10].
新疆若羌巧治流沙 台特玛湖焕然新生
Zhong Guo Xin Wen Wang· 2025-06-23 07:26
Core Viewpoint - The article highlights the successful ecological restoration efforts in the Taitema Lake area of Xinjiang, transforming a previously desolate region into a vibrant ecosystem through various environmental management strategies [1][2]. Group 1: Ecological Restoration Efforts - The Taitema Lake area, once a barren salt and alkali land, has been revitalized through a comprehensive ecological water diversion project initiated by the Chinese government in 2001, with a total investment of approximately 10.7 billion RMB [2]. - The vegetation coverage in the lower Tarim River has increased from over 830 square kilometers in 2000 to over 1,790 square kilometers in 2023, with the number of plant species rising from 7 to 26 [4]. - The implementation of a "dual-channel, multi-period, long-duration, small-flow" water diversion model has effectively replenished the fragile ecological areas and groundwater levels [2]. Group 2: Sand Control Initiatives - A "sand control and green protection" project is being executed in the eastern region of Taitema Lake, utilizing an "interval sand control" model that combines grass grids with high vertical sand barriers to mitigate wind damage and stabilize shifting sands [5][7]. - Local residents have reported that the sand control measures have significantly reduced the impact of wind and sand on wetlands and vegetation, leading to an increase in tourism [7]. - The region is exploring a "engineering + biological + sand industry" model for sand control, integrating the cultivation of economic plants like hawthorn and seabuckthorn to achieve both sand control and economic benefits [8][10].
数千只濒危鸟类为何重返黄土高原
Huan Qiu Shi Bao· 2025-06-02 07:21
Core Viewpoint - China's ambitious ecological restoration projects have transformed the Loess Plateau, previously one of the most severely degraded areas, leading to a significant return of endangered bird species as a testament to ecological balance restoration [1][2] Group 1: Ecological Restoration Efforts - The Chinese government initiated the "Grain for Green" program at the end of the 20th century to combat desertification and restore ecosystems, resulting in over 30,000 square kilometers of rain-fed farmland being converted to forests or grasslands by 2016 [1] - Vegetation coverage increased by 25% over a decade, with the forest and grassland coverage on the Loess Plateau rising from 31.6% in 1999 to 67% in 2020, marking a historic transformation from barren to green [1] Group 2: Biodiversity and Wildlife Return - The restoration efforts have not only reduced soil erosion but also gradually restored biodiversity, with a significant number of bird species returning to the region, indicating the success of the ecological project [2] - As of 2024, data recorded 2,852 animals representing 69 different species in the area, showcasing the positive impact of artificial reforestation on nesting species and the stabilization of the local ecosystem [2] Group 3: Symbolic Species and Ecological Impact - In October 2023, 40 captive-bred Crested Ibis, a species once on the brink of extinction in China, were released back into the Loess Plateau, symbolizing China's commitment to species conservation [2] - The returning bird populations play a crucial role in stabilizing the plateau's ecosystem by aiding in seed dispersal, which accelerates natural vegetation regeneration [2]