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汞是一种剧毒重金属，其可以通过大气在全球范围内进行传输。当大气中的汞与颗粒物结合时，会形成颗粒结合态汞（PBM）。PBM能够跨区域传输和快速沉降，从而对全球生态系统构成严重威胁。中国的汞排放一直是全球关注的热点，但目前对中国PBM的时空分布、长期趋势和迁移转化规律尚不明确。
中国科学院广州地球化学研究所刘亮等-Communications Earth & Environment：板块间横向挤压在伊豆-小笠原-马里亚纳俯冲起始中的关键作用（图）
刘亮 岩浆 演化 数值
2024/5/21
大洋板块俯冲是地球浅表最具代表性的地质过程之一。理论上来讲，大洋板块在形成之后的20-40 Myr内，就已经具备了发生俯冲的密度等自身属性条件。然而，50%以上的大西洋板块形成于40 Ma之前，至今却几乎没有发生俯冲；位于地中海东部的部分大洋块体甚至已在地表存在了3亿年之久。因此，除了大洋板块自身的属性外，新俯冲的开启往往还伴随某种外部因素的存在、以打破大洋板块与上盘之间的平衡状态，如：横向或纵向...
The Global Ecosystem Dynamics Investigation: High-resolution laser ranging of the Earth’s forests and topography
lidar ecosystem structure GEDI biomass
2024/1/22
Obtaining accurate and widespread measurements of the vertical structure of the Earth’s forests has been a long-sought goal for the ecological community. Such observations are critical for accurately ...
New modeling of nuclear device to deflect or destroy asteroids en route to Earth（图）
小行星 核装置 天体物理学
2024/2/1
The same high energy density that makes nuclear energy a clean and efficient source of power could make it a good alternative to defend the planet against catastrophic asteroid impacts. NASA demonstra...
High-efficient esterification of rosin and glycerol catalyzed by novel rare earth Lewis acidic ionic liquid: Reaction development and mechanistic study
Rosin glyceride Rare earth Lewis acidic ionic liquid Esterification DFT Catalysis
2023/12/7
Background: As one of the most important modified products of rosin, rosin glyceride was widely used in many aspects. However, the preparation of rosin glyceride is always unfriendly due to the use of...
Analysis of Regional Distribution of Tree Species Using Multi-Seasonal Sentinel-1&2 Imagery within Google Earth Engine
multisensor tree species large areas cloud-computing machine learning
2023/12/6
Accurate information on tree species is in high demand for forestry management and further investigations on biodiversity and environmental monitoring. Over regional or large areas, distinguishing tre...
Forest regeneration within Earth system models: current process representations and ways forward
arth system models forestregeneration reproductive allocation treerecruitment vegetation demographic models vegetation dynamics
2023/11/30
Earth system models must predict forest responses to global change in order to simulate future global climate, hydrology, and ecosystem dynamics. These models are increasingly adopting vegetation demo...
南京农业大学农学院《Nature Reviews Earth & Environment》发表水稻栽培团队“Greenhouse gas emissions and mitigation in rice agriculture”（图）
水稻栽培 数据推测
2023/10/28
2023年9月27日，南京农业大学农学院水稻栽培团队应邀在Nature Reviews系列刊物Nature Reviews Earth & Environment（影响因子42.1）上发表了题为“Greenhouse gas emissions and mitigation in rice agriculture”的综述文章，系统梳理和综述了稻田温室气体排放特征、驱动因子和减排策略。
南京农业大学农学院《Nature Reviews Earth & Environment》水稻栽培团队发文阐述稻田温室气体排放特征、驱动因子和减排策略（图）
水稻栽培 气体排放 因子 减排策略
2023/10/28
2023年9月27日，南京农业大学水稻栽培团队应邀在Nature Reviews系列刊物Nature Reviews Earth & Environment（影响因子42.1）上发表了题为“Greenhouse gas emissions and mitigation in rice agriculture”的综述文章，系统梳理和综述了稻田温室气体排放特征、驱动因子和减排策略。
Researchers create synthetic species without biochemistry, find they operate according to Darwinian evolutionary principles.
过去30年中国农作物产量大幅度增加，但水肥投入、农业温室气体排放和灌溉用水量持续增加引发一系列生态环境问题。如何达到高产高效，兼顾生产、节水固碳减排和经济等多目标，成为迫切需要解决的重大需求和科学前沿问题。
New research from Cornell and the Smithsonian Institution deepens the geological understanding of Earth’s continents by testing and ultimately eliminating a popular hypothesis about why continental an...
On the eve of Earth Day, Brown climate scientist outlines solutions for a warming world（图）
气候科学 全球变暖 气候变化
2023/6/26
Kim Cobb, a Brown University professor and director of the Institute at Brown for Environment and Society, spoke about the need to act on climate change, urging that action must be taken collaborative...
Can humans endure long-term living in deep space?The answer is a lukewarm maybe, according to a new theory describing the complexity of maintaining gravity and oxygen, obtaining water, developing agri...
A yearslong effort to launch Cornell-made satellite technology into a neighboring solar system is making a terrestrial stop at the Intrepid Sea, Air and Space Museum in New York City.