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Radiative trigger thresholds of foliar photoprotective pigment regulation for global vegetation

The Innovation 2024年第4期5卷 55-61,54页

作者： Wenjin Wu Howard Epstein Xiyan Xu Xinwu Li huadong guo Jinfeng Li International Research Center of Big Data for Sustainable Development Goals Beijing 100094China Key Laboratory of Digital Earth Sciences Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100094China Key Laboratory of Earth Observation of Hainan Province Hainan Research InstituteAerospace Information Research InstituteChinese Academy of SciencesSanya 572029China Department of Environmental Sciences University of VirginiaCharlottesvilleVAUSA Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Plant Diversity and Specialty Crops Institute of BotanyChinese Academy of SciencesBeijing 100093China

Adjustments in foliar photoprotective pigments are crucial for plant adaptation to harsh environments,serving as indicators of environmental ***,understanding when and where these adjustments occur across diverse biomes remains unclear due to challenges in large-scale ***,we propose a novel approach to assess dynamics in photoprotective pigments at the canopy level using a new index derived from spaceborne optical *** approach generates a global map depicting the daily mean shortwave radiation threshold at which adjustments typically occur under prevailing climatic *** global average of this threshold is 262±50 W m⁻2,with lower values at high latitudes and peaks near 40in both *** exerts a stronger influence on this latitudinal pattern than *** projections suggest a decrease in this threshold over northern high latitudes,implying exacerbated vulnerability under identical radiation levels due to negative warming *** on this threshold,a high-stress zone around 60N is identified and is predicted to shift southward in the *** findings bridge critical gaps in photoprotection research and offer a new perspective on understanding the biogeochemical cycles of global *** framework can also enhance our ability to predict the fate of diverse ecosystems under future climate.

关键词： latitude prevailing humidity

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SDGSAT-1: Capabilities for Monitoring and Evaluating SDG Indicators

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空间科学学报 2024年第4期44卷 677-686页

作者： guo huadong DOU Changyong LIANG Dong JIANG Nijun TANG Yunwei MA Wenyong International Research Center for Big Data for Sustainable Development Beijing 100094 Key Laboratory of Digital Earth Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100094 University of Chinese Academy of Sciences Beijing 100049

SDGSAT-1,the world's first science satellite dedicated to assisting the United Nations 2030 Sustainable Development Agenda,has been operational for over two and a half *** provides valuable data to aid in implementing the Sustainable Development Goals *** its Open Science Program,the satellite has maintained consistent operations and delivered free data to scientific and technological users from 88 *** program has produced a wealth of scientific output,with 72 papers,including 28 on data processing methods and 44 on applications for monitoring progress toward SDGs related to sustainable cities,clean energy,life underwater,climate action,and clean water and ***-1 is equipped with three key instruments:a multispectral imager,a thermal infrared spectrometer,and a glimmer imager,which have enabled ground-breaking research in a variety of domains such as water quality analysis,identification of industrial heat sources,assessment of environmental disaster impacts,and detection of forest *** precise measurements and ongoing monitoring made possible by this invaluable data significantly advance our understanding of various environmental *** are essential for making well-informed decisions on a local and global *** its application to academic research,SDGSAT-1 promotes global cooperation and strengthens developing countries'capacity to accomplish their sustainable development *** the satellite continues to gather and distribute data,it plays a pivotal role in developing strategies for environmental protection,disaster management and relief,and resource *** initiatives highlight the satellite's vital role in fostering international collaboration and technical innovation to advance scientific knowledge and promote a sustainable future.

关键词： SDGSAT-1 Earth observation Remote sensing SDGs

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地球大数据缘起和进展

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科学通报 2024年第1期69卷 58-67页

作者：郭华东梁栋可持续发展大数据国际研究中心北京100094 中国科学院空天信息创新研究院北京100094 中国科学院大学北京101408

进入信息时代以来,数据总量呈爆炸式增长,数据的类型、结构、维度也更加复杂多样,远远超出了传统数据库的管理和处理能力,逐渐向“大数据”方向转变.大数据是用于描述超出常规处理能力的数据集术语,其内涵不仅包含海量的数据本身,也包... 详细信息

进入信息时代以来,数据总量呈爆炸式增长,数据的类型、结构、维度也更加复杂多样,远远超出了传统数据库的管理和处理能力,逐渐向“大数据”方向转变.大数据是用于描述超出常规处理能力的数据集术语,其内涵不仅包含海量的数据本身,也包含对这些数据集的存储、处理与分析方法.当前,大数据已经成为国家信息主权的体现,并已在人类社会发展中发挥重要作用^([1,2]).

关键词：大数据传统数据库数据集人类社会发展数据总量处理与分析信息时代常规处理

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Deforestation in Latin America in the 2000s predominantly occurred outside of typical mature forests

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The Innovation 2024年第3期5卷 88-98页

作者： Zhiyu Zhang Wenjian Ni Shaun Quegan Jingming Chen Peng Gong Luiz Carlos Estraviz Rodriguez huadong guo Jiancheng Shi Liangyun Liu Zengyuan Li Yating He Qinhuo Liu Yosio Shimabukuro guoqing Sun Key Laboratory of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Shijingshan DistrictBeijing 100049China Chinal of Mathematics and Statistics University of SheffieldSheffield S37RHUK Department of Geography and Program in Planning University of TorontoTorontoON M5S 3G3Canada Department of Earth Sciences and Department of Geography University of Hong KongHong KongChina Forest Science Department Luiz de Queiroz College of AgricultureUniversity of São PauloAv.Pádua Dias11Piracicaba 13418-900Brazil National Space Science Center Chinese Academy of SciencesBeijing 100190China Institute of Forest Resource Information Techniques Chinese Academy of ForestryBeijing 100091China Research Institute of Forest Policy and Information Chinese Academy of ForestryBeijing 100091China Remote Sensing Department National Institute for Space Research(INPE)Av.dos Astronautas 1758São Josédos Campos 12227-010Brazil Department of Geographical Sciences University of MarylandCollege ParkMD 20742USA

The role of tropical forests in the global carbon budget remains controversial,as carbon emissions from deforestation are highly *** high uncertainty arises from the use of either fixed forest carbon stock density or maps generated from satellite-based optical reflectance with limited sensitivity to biomass to generate accurate estimates of emissions from *** space missions aiming to accurately map the carbon stock density rely on direct measurements of the spatial structures of forests using lidar and *** found that lost forests are special cases,and their spatial structures can be directly measured by combining archived data acquired before and after deforestation by space missions principally aimed at measuring ***,using biomass mapping,we obtained new estimates of carbon loss from deforestation ahead of forthcoming space ***,using a high-resolution map of forest loss and the synergy of radar and lidar to estimate the aboveground biomass density of forests,we found that deforestation in the 2000s in Latin America,one of the severely deforested regions,mainly occurred in forests with a significantly lower carbon stock density than typical mature forests.

关键词： forest Latin lidar

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地球大数据及其推动可持续发展的作用

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Science Bulletin 2024年第11期69卷 1623-1627页

作者：郭华东梁栋 International Research Center of Big Data for Sustainable Development Goals Beijing 100094China Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China University of Chinese Academy of Sciences Beijing 100049China

The information age has been a product of, and has been fueled by, the process of decades-long digitization aided by digital technologies that progressed rapidly, consequently transforming human societies globally.

关键词：大数据 globally digit

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地理大数据揭示中国主要城市建成环境物质存量的空间格局

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Engineering 2024年第3期34卷 143-153页

作者： Zhou Huang Yi Bao Ruichang Mao Han Wang Ganmin Yin Lin Wan Houji Qi Qiaoxuan Li Hongzhao Tang Qiance Liu Linna Li Bailang Yu Qinghua guo Yu Liu huadong guo Gang Liu Institute of Remote Sensing and Geographical Information Systems School of Earth and Space SciencesPeking UniversityBeijing 100871China International Research Center of Big Data for Sustainable Development Goals Beijing 100094China SDU Life Cycle Engineering Department of Green TechnologyUniversity of Southern DenmarkOdense 5230Denmark Department of Construction Management School of Civil EngineeringTsinghua UniversityBeijing 100084China School of Computer Science China University of GeosciencesWuhan 430074China School of Geographical Sciences East China Normal UniversityShanghai 200062China Land Satellite Remote Sensing Application Center Ministry of Natural ResourcesBeijing 100048China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China Department of Geography California State UniversityLong BeachCA 90840USA Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China College of Urban and Environmental Sciences Peking UniversityBeijing 100871China

The patterns of material accumulation in buildings and infrastructure accompanied by rapid urbanization offer an important,yet hitherto largely missing stock perspective for facilitating urban system engineering and informing urban resources,waste,and climate ***,our existing knowledge on the patterns of built environment stocks across and particularly within cities is limited,largely owing to the lack of sufficient high spatial resolution *** study leveraged multi-source big geodata,machine learning,and bottom-up stock accounting to characterize the built environment stocks of 50 cities in China at 500 m fine-grained *** per capita built environment stock of many cities(261 tonnes per capita on average)is close to that in western cities,despite considerable disparities across cities owing to their varying socioeconomic,geomorphology,and urban form *** is mainly owing to the construction boom and the building and infrastructure-driven economy of China in the past ***’s urban expansion tends to be more“vertical”(with high-rise buildings)than“horizontal”(with expanded road networks).It trades skylines for space,and reflects a concentration-dispersion-concentration pathway for spatialized built environment stocks development within cities in *** results shed light on future urbanization in developing cities,inform spatial planning,and support circular and low-carbon transitions in cities.

关键词： Urban system engineering Built environment stock Spatial pattern Urban sustainability Big geodata

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Global assessment of terrestrial productivity in response to water stress

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Science Bulletin 2024年第15期69卷 2352-2356页

作者： Qi Liu huadong guo Jiahua Zhang Shijie Li Ji Li Fengmei Yao Miguel D.Mahecha Jian Peng School of Computer Engineering Jiangsu University of TechnologyChangzhou 213001China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 101408China Department of Remote Sensing Helmholtz Centre for Environmental ResearchUFZLeipzig 04318Germany Remote Sensing Centre for Earth System Research Leipzig UniversityLeipzig 04103Germany Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China Remote Sensing and Digital Earth Center School of Computer Science and TechnologyQingdao UniversityQingdao 266071China Key Laboratory of Earth Observation of Hainan Province Hainan Aerospace Information Research InstituteChinese Academy of SciencesSanya 572000China School of Geographical Sciences Nanjing University of Information Science and TechnologyNanjing 210044China Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China German Centre for Integrative Biodiversity Research(iDiv) Halle-Jena-Leipzig 04103Germany

In recent decades, climate warming has led to an increase in atmospheric water demand, a potential reduction in soil moisture and a rise in the frequency and intensity of droughts. This has intensified the effects of water stress on plants, leading to more vegetated areas experiencing water stress [1,2]. Soil moisture (SM)and vapor pressure deficit (VPD) are considered the two main factors that exert water stress on vegetation activity and terrestrial productivity, thereby affecting the global carbon cycle [3].

关键词： soil moisture terrestrial

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新型锰基金属有机骨架材料的合成及其光催化降解四环素的性能

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吉林大学学报（理学版） 2024年第3期62卷 734-741页

作者：王丽珊郭华东长春师范大学化学学院长春130032

针对环境的自净作用很难消除废水中的四环素从而实现水质净化的问题,开发设计一种新型污水处理剂.以4,4′,4″,4′′′-(喹喔啉-2,3,6,7-四基)四苯甲酸为有机配体,Mn(Ⅱ)为金属中心离子合成一种新型金属有机骨架(MOFs)材料[Mn_(2)(TCPQ)... 详细信息

针对环境的自净作用很难消除废水中的四环素从而实现水质净化的问题,开发设计一种新型污水处理剂.以4,4′,4″,4′′′-(喹喔啉-2,3,6,7-四基)四苯甲酸为有机配体,Mn(Ⅱ)为金属中心离子合成一种新型金属有机骨架(MOFs)材料[Mn_(2)(TCPQ)(H_(2)O)_(8)]·xsolvent.利用粉末X射线衍射、X射线单晶衍射、Fourier变换红外光谱及热重对该材料的结构和稳定性进行研究,并分析其光催化性能.实验结果表明,在可见光照射30 min时,所制备MOFs材料对四环素的降解率可达97.5%,该化合物可作为一种优异的降解四环素材料.

关键词：金属有机骨架材料光催化四环素

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Understanding global natural disasters and the role of earth observation

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International Journal of Digital Earth 2010年第3期3卷 221-230页

作者： huadong guo Center for Earth Observation and Digital Earth Chinese Academy of SciencesBeijing 100190China

Since earthquakes,tropical storms,and floods are the three main global natural disasters causing the biggest loss,they should be the main focus of research in disaster science and disaster mitigation and *** paper discusses the characteristics of these three global natural disasters from a scientific point of view,and analyses their patterns of distribution,origin and result,as well as the extent of their damage and measures of disaster mitigation and *** paper,at the technical level,introduces the role of earth observation(EO)technologies in disaster mitigation,and real and quasi-real-time monitoring and assessment using advanced optical and microwaveEOcapacities,while digital earth technologies provide avery important role in rapidly acquiring spatial information of the disaster *** paper concludes by discussing the relationship between man and natural disasters,and proposes the viewpoint that man and nature should be able to harmoniously coexist,and the importance of understanding disasters from an earth system science perspective so as to better meet the challenges of natural disasters.

关键词： natural disaster earth observation digital earth

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科学数据支撑国家重大战略需求的若干思考

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科学通报 2024年第9期69卷 1116-1122页

作者：郭华东邹自明陈刚周国民石蕾胡晓彦可持续发展大数据国际研究中心北京100094 中国科学院空天信息创新研究院北京100094 中国科学院大学北京100049 中国科学院国家空间科学中心国家空间科学数据中心北京100190 中国科学院高能物理研究所国家高能物理科学数据中心北京100049 中国农业科学院农业信息研究所国家农业科学数据中心北京100081 国家科技基础条件平台中心北京100038

党的二十大报告指出,科技是第一生产力、人才是第一资源、创新是第一动力,发出了深入实施创新驱动发展战略,开辟发展新领域新赛道,不断塑造发展新动能新优势的号召.科技创新是农业强国、制造强国、贸易强国、航天强国、海洋强国、网络... 详细信息

党的二十大报告指出,科技是第一生产力、人才是第一资源、创新是第一动力,发出了深入实施创新驱动发展战略,开辟发展新领域新赛道,不断塑造发展新动能新优势的号召.科技创新是农业强国、制造强国、贸易强国、航天强国、海洋强国、网络强国和健康中国、美丽中国、平安中国等国家重大战略的核心动能,在全面建设社会主义现代化国家中发挥关键作用,而数据则是实施创新驱动发展战略的关键要素.

关键词：贸易强国国家重大战略制造强国创新驱动发展战略海洋强国数据支撑第一动力农业强国

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