盛夏时节，北京市海淀区中关村南大街12号院农科东大道。从中国农业科学院东门进入，远远就能看到 一栋现代化的白色建筑。正面墙上，由"禾"与"重"组成的篆刻字"种"格外醒目。 这里是国家农作物种质资源库，也是守护农作物种质资源的"诺亚方舟"—— 如同有了一些特定野生稻基因的留存，人类才能成功创制出超级杂交稻，很多种质资源蕴藏着潜在可利 用基因，是人类的宝贵财富。但由于气候变化、人类活动等，很多种质资源在野外面临着灭绝危机。将 这些种质资源收集起来并进行科学保存，能延长它们的寿命，并在不断进步的科技加持下，打开未来无 限可能的空间。 2021年7月9日，中央全面深化改革委员会第二十次会议审议通过《种业振兴行动方案》，种质资源保护 是其中的重要内容。 当前种业振兴行动已迈入第5个年头。作为种业振兴的基础工作，我国新保存了哪些重要种质资源？应 用了哪些新技术，种质资源保存效果如何？近日，记者来到国家农作物种质资源库，一探究竟。 走进5层楼高的种质库，一间间宽敞明亮的库房里整齐摆放着已经贴上二维码、条形码的种子瓶，试管 苗容器，液氮罐。 "在这里，每个种类的种子都有自己的身份信息。"中国农业科学院工作人员张金梅介绍说，我 ...

Group 1 - The core focus of the "14th Five-Year" natural resource planning is to integrate various sectors such as natural resource protection, mineral resources, marine economy, and ecological restoration to promote high-quality development and protection [1][2] - The planning period is set from 2025 to 2030, with a vision extending to 2035, emphasizing the need for enhanced resource management and environmental protection in response to global climate change [2][6] - Experts at the planning meeting highlighted the importance of deep integration across natural resource sectors to ensure ecological protection, resource security, and sustainable development [2][3] Group 2 - Key areas of focus include marine technology innovation, deep earth exploration for mineral resources, and the integration of spatial information with digital ecological governance [5][6] - The demand for critical minerals is projected to increase significantly by 400% to 600% by 2040, particularly driven by the electric vehicle industry [6] - The establishment of a national park system is being prioritized to enhance ecological protection and promote high-quality development in tourism and environmental education [7]

7月4日，十三届福建省政协常委会第十四次会议召开，围绕"实施海洋强省战略，推动我省海洋资源保 护与开发"协商议政。福建省委书记周祖翼出席并讲话。省政协主席滕佳材主持会议。周祖翼强调，实 施海洋强省战略，要统筹好开发与保护两种关系、高质量发展与高水平安全两件大事，扎扎实实做好新 时代海洋资源保护开发重点工作。一要突出海湾、海岛、海域一体推进，优化海洋资源保护开发战略空 间布局，强化港产城融合、保护性开发、立体化推进，打造高质量的湾区经济、高效益的和美海岛、高 层次的开放海域。二要突出海洋传统、新兴、未来产业协同发展，注重延伸拓展、靶向发力、前瞻布 局，做强做优做大海洋产业，构建支撑海洋资源保护开发的现代海洋产业体系。三要突出海洋教育、科 技、人才统筹并举，夯实海洋教育基础，强化海洋科技创新，加强人才引育力度，深化产学研用深度融 合，增强海洋资源保护开发的科技自主创新能力。四要突出海洋合理开发、科学治理、有效保护"三管 齐下"，加大海洋生态保护力度，强化海洋资源集约化开发，加强陆海协同治理，严格海上船舶安全管 理，实现海洋资源保护开发的人海和谐。（福建日报） ...

Core Viewpoint - The "Ningyuan River - Tengqiao River - Sanya River" photo collection activity aims to preserve river memories and promote public awareness of water resource protection and river culture through various photographic works [3][4]. Group 1: Activity Overview - The photo collection activity officially starts on July 1, 2025, and is organized by the Committee for Excellent Traditional Culture in Yazhou and the Sanya Water Affairs Bureau [3]. - The activity focuses on the Ningyuan River, Tengqiao River, Sanya River, and their surrounding areas, inviting submissions from the public in four categories: historical images, ecological scenery, human stories, and development changes [4]. Group 2: Submission Requirements - Participants can submit single photos or groups of up to 8 images, with a minimum resolution of 300 dpi, and must include a brief description of no more than 100 words [4]. - Submissions must reflect the true history and current state of Hainan's rivers, with clear themes and images, and must not use AI to alter key scenes or add watermarks [4][5]. Group 3: Awards and Recognition - A total of 100 outstanding works will be selected, with each selected piece receiving a reward of 500 yuan (tax included) [6]. - Selected works will be featured in a river culture book to be published in 2026 and will also be part of a public exhibition, enhancing the visibility of river stories [6].

Group 1 - The core theme of the activities on June 25, the 35th National "Land Day," was to promote the conservation and intensive use of land resources, emphasizing the importance of protecting arable land [1] - Inner Mongolia has implemented strict arable land protection policies, achieving a total arable land area of 174 million mu, exceeding the national target of 170 million mu [1] - The region has established a dynamic monitoring system for arable land balance management, completing the reform of the arable land balance system ahead of other regions in the country [1] Group 2 - Inner Mongolia is advancing the "standard land" reform for new industrial land, which supports the optimization of the business environment and enhances the quality of industrial projects [2] - In the first five months of this year, 134 new industrial land plots were sold, covering an area of 1,179.14 hectares, with "standard land" accounting for 100% of the new industrial land [2] - The region has also focused on revitalizing unused and idle land, with 110,000 mu of undeveloped land and 14,200 mu of idle land disposed of as of June 23 this year [2]

Core Viewpoint - The shortage of magnets is having a "very, very serious" impact on European companies, as stated by the EU Ambassador to China, Toledo [1] Group 1: Impact of Export Controls - Following the high tariffs imposed by the U.S. on China, China retaliated with export controls on key minerals and rare earth magnets, leading to a significant decline in exports and disruptions in global supply chains, particularly affecting Europe [3] - Despite China's promise to expedite approval processes for exports, the shortage of rare earth materials continues to persist in Europe [3] - Toledo highlighted that since 2017, China's economy has grown by 40%, while EU exports to China have decreased by 30%, indicating a troubling trade relationship [3] Group 2: EU's Response and Concerns - The EU is seeking a "fair competitive environment" and is concerned about the implications of China's export controls on its industries [3] - The European Commission President and the European Council President plan to visit China next month to address the rare earth magnet export issues [3] - The EU's trade and economic relationship with China is described as "unclear," reflecting the ongoing tensions and challenges [3] Group 3: China's Position and Measures - China's Ministry of Foreign Affairs has stated that the export control measures are in line with international practices and are non-discriminatory [5] - Recent reports indicate that China is requiring rare earth companies to provide detailed information about their technical experts to prevent the leakage of commercial secrets [7] - The establishment of an export approval system and a personnel record system for rare earths is aimed at safeguarding national security and controlling strategic resources [7]

Core Viewpoint - The article emphasizes the importance of land conservation and sustainable agricultural practices, highlighting various successful initiatives in China aimed at restoring degraded land and improving agricultural productivity [7]. Group 1: Land Restoration Initiatives - In Huan County, a total of 1.36 billion yuan has been invested since 2019 to restore 370 erosion gullies, significantly improving land stability and agricultural output [9]. - After comprehensive restoration, nearly 5 acres of previously eroded land were reclaimed, allowing for increased corn planting and reduced operational costs due to mechanization, resulting in an annual income increase of 6,000 yuan for local farmers [10]. - The county has achieved a water and soil conservation rate of 91.95% through innovative management models that involve both enterprises and local farmers [11]. Group 2: Agricultural Innovation - In Jiangxi Province, a previously flooded area has been transformed into a productive corn base, yielding a total output of over 2.7 million pounds, with a single-season yield of 2,500 pounds per acre [12][13]. - The local government has initiated scientific reclamation efforts, increasing soil organic matter from 1.2% to 2.1% and expanding the planting area by over 300 acres [14]. - The introduction of fresh corn cultivation has provided local farmers with multiple income streams, including land rental fees and daily wages from farm work [14]. Group 3: Saline-Alkali Land Improvement - In Dongying City, a comprehensive improvement project for saline-alkali land has led to increased grain yields and enhanced farmer incomes through collective investment and shared profits [15][16]. - The use of real-time data monitoring for soil conditions has improved agricultural practices, allowing for precise irrigation and fertilization [16]. - The introduction of salt-tolerant crop varieties has resulted in significant yield increases, with wheat production exceeding 1,000 pounds per acre in previously unproductive saline-alkali areas [17].

点击 最 下方 关注《材料汇》 ， 点击"❤"和" "并分享 添加 小编微信 ，寻 志同道合 的你 正文 任何物质都具有磁性, 任何空间都存在磁场 从基本粒子到宏观宇宙天体，磁场与磁现象无处不在 1000 1E12 1E15 1E-15 1E-12 1E-6 1E-3 -- 1E6 1E9 1E-9 uT T MT pT 力学 化学 天文学 女是 生物学 电子学 磁学 多学科交叉 内容丰富 凝聚态 物理 地质学 地球物 光学 播录 基本粒 子物理 r 2 材料汇 核物理 徽性材料和磁技术的广泛应用 T 45 电子 家用 年产 电力 电影 新能 交通 运输 磁应 信息 FF Fi 通讯 国防 世后 彩学 环境 探测 研究 ◆ 在迄今为止的206位诺贝尔物理 学奖获得者中,有32位获奖者的 获奖工作与磁学研究有关。 磁学是现代物理学中的重要基础 学科。 | 年代 | 获奖者 | 与磁学有关工作 | | --- | --- | --- | | 1902 | P. Zeeman | 寒曼能 | | 1902 | H. A. Lorentz | 洛论茨力 | | 1903 | P. Curie and M. Curie ...

Core Points - The meeting emphasized the importance of implementing Xi Jinping's ecological civilization thoughts and enhancing the natural resource planning management work to support high-quality urban development [1][2] - Significant achievements have been made in the reform of the natural resources sector, with a focus on improving service levels and adhering to natural resource limits [1][2] Group 1 - The meeting highlighted the need for scientific planning leadership and rigid control of land use, aiming for comprehensive coverage of detailed planning [2] - There is a focus on optimizing resource allocation to meet industrial project land demands while maintaining stability in the real estate market [2] - The meeting called for strict adherence to farmland protection and ecological environment protection systems, emphasizing the importance of a unified approach to land use and ecological restoration [2] Group 2 - The leadership team included the deputy leader of the natural resource planning management group and responsible officials from member units [3]

Core Viewpoint - The article emphasizes the importance of fish stocking as an effective method for restoring fish populations, enhancing biodiversity, and stabilizing ecosystems, particularly focusing on the Qinghai Lake naked carp [1][2] Group 1: Fish Stocking and Conservation Efforts - The contribution rate of fish stocking to the recovery of Qinghai Lake naked carp resources is assessed at 26% [1] - Qinghai Province has implemented six lake closures for fish breeding, a first in China's fish resource conservation history [2] - The scale of fish stocking has increased from 3 million fish in 2002 to 20 million fish currently, with the weight of each fish increasing from 5 grams to 10 grams [2] Group 2: Current Status of Qinghai Lake Naked Carp - As of the end of 2023, the resource stock of Qinghai Lake naked carp reached 120,300 tons, transitioning from "endangered" to "vulnerable" status [2] - The total stock of Qinghai Lake naked carp has grown nearly 49 times since the initial protection efforts, now totaling 127,500 tons [2] - Over 210 million juvenile naked carp have been released in Gangcha County, contributing to the ecological balance of the region [2]