云南高校图书馆联盟文献共享服务平台- Δ18O

Δ18O: 作品数：149被引量：1114H指数：18; 导出分析报告; 相关领域：天文地球更多>>; 相关作者：章新平杨琰赵景耀郑永飞田立德更多>>; 相关机构：中国科学院中国科学院大学西南大学南京师范大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中央高校基本科研业务费专项资金中国科学院知识创新工程重要方向项目更多>>

鸡冠洞洞穴滴水和现代沉积物δ18O、δ13C对极端秋雨的响应: 《第四纪研究》2025年第1期191-202,共12页贾亦真杨琰叶枝茂田宁许彦智; 国家自然科学基金项目(批准号:42277048、41877450和41672160)资助。; 华西秋雨是我国雨季的重要降雨过程之一,但是目前关于洞穴滴水和沉积物的δ18O、δ13C对华西秋雨的响应过程和机制的认识还不够深入。本研究通过对河南省栾川县西部鸡冠洞的连续12年的监测,结合2021年极端秋雨期间高分辨监测记录,分析...; 关键词：鸡冠洞氧同位素碳同位素华西秋雨大气环流

Observed features of stable surface seawater isotopes across the Pacific, Indian and Southern oceans: 《Acta Oceanologica Sinica》2024年第10期33-39,共7页Xuemei Wu Weijun Sun Biao Tian Baojuan Huai Zhiheng Du Minghu Ding; The National Natural Science Foundation of China under contract No.42122047;the Basic Research Fund of Chinese Academy of Meteorological Sciences under contract Nos 2021Z006,2023Z015 and 2023Z005;the Chinese National Antarctic Science Expedition.; The marine hydrological process is still unclear due to scarce observations.Based on stable water isotopes in surface seawater along the 33rd Chinese National Antarctic Science Expedition from November 2016 to April 2...; 关键词：spatial variability surface seawater isotopes δ18O-salinity relation water mass fronts

典型草地土壤反硝化过程同位素分馏效应: 《生态学杂志》2024年第9期2714-2728,共15页刘德泽王盎王莹莹杨秀森宿晨霞宋琳琳段伊行于浩明刘东赵鹏武李英华方运霆; 国家自然科学基金项目(31901134);沈阳市科学技术计划(21⁃108⁃9⁃06)资助。; 反硝化过程是生态系统气态氮损失的主要途径,然而其速率一直难以量化。^(15)N同位素自然丰度法是量化陆地生态系统尺度反硝化速率的有效方法,但是该方法需要考虑反硝化过程中的氮氧同位素分馏效应。目前关于陆地土壤反硝化作用分馏系数...; 关键词：反硝化稳定同位素技术草地氮氧同位素分馏效应 Δδ18O∶Δδ15N

Trackingδ13C andδ18O fluctuations uncovers stable modes and key patterns of paleoclimate: 《Geoscience Frontiers》2024年第4期115-133,共19页Shifeng Sun Haiying Wang Yongjian Huang; supported by 2022 Subject Development Research Fund Project of China University of Geosciences,Beijing(Grant No.2022XK211);2023 Graduate Innovation Fund Project of China University of Geosciences,Beijing(Grant No.YB2023YC014);supported by the National Natural Science Foundation of China(Grant No.42174149 and No.42272134).; The examination of fluctuations in the correlations betweenδ13C andδ18O is of significant importance for the reconstruction of the Earth's climate history.A key challenge in paleoclimatology is finding a suitable me...; 关键词：Cenozoic climate dynamics Correlation analysis Complex network Coarse-grained methods Phase space reconstruction

Linkage between precipitation isotopes and water vapor sources in the monsoon margin:Evidence from arid areas of Northwest China被引量：1: 《Journal of Arid Land》2024年第3期355-372,共18页CHEN Fenli ZHANG Qiuyan WANG Shengjie CHEN Jufan GAO Minyan Mohd Aadil BHAT; supported by the National Natural Science Foundation of China(42161007);the Scientific Research Program for Higher Education Institutions of Gansu Province(2021B-081);the Natural Science Foundation of Gansu Province(22JR5RA074).; The isotope composition in precipitation has been widely considered as a tracer of monsoon activity.Compared with the coastal region,the monsoon margin usually has limited precipitation with large fluctuation and is u...; 关键词：water vapor monsoon margin stable water isotope transport trajectory air mass d-excess Δ18O δD

Integrating stable isotopes and factor analysis to delineate the groundwater provenance and pollution sources in the northwestern part of the Amman-Al Zarqa Basin, Jordan: 《Journal of Arid Land》2023年第12期1490-1509,共20页Mutawakil OBEIDAT Ahmad AL-AJLOUNI Eman BANI-KHALED Muheeb AWAWDEH Muna ABU-DALO; funded by the Deanship of Scientific Research,Jordan University of Science and Technology(20210159).; Globally,groundwater contamination by nitrate is one of the most widespread environmental problems,particularly in arid and semiarid areas,which are characterized by low amounts of rainfall and groundwater recharge.Th...; 关键词：stable isotope composition δ15N-NO3– δ18O-NO3– groundwater quality pollution sources JORDAN

Late Holocene glacier variations indicated by theδ18O of ice core enclosed gaseous oxygen in the central Tibetan Plateau: 《Journal of Mountain Science》2023年第2期325-337,共13页LI Jiu-le XU Bai-qing WANG Ning-lian YAO Ping XU Xiang-ke; supported by the National Natural Science Foundation of China(Grant No.42271312,41201058);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDA20070102);the National Key R&D Program of China(Grant No.2018YFB1307504);the Science and Technology Program of Tibet Autonomous Region of China(Grant No.XZ202101ZD0014G).; Theδ18O of ice core enclosed gaseous oxygen(δ18Obub)has been widely used for climate reconstruction in polar regions.Yet,less is known about its climatic implication in the mountainous glaciers as the lack of contin...; 关键词：Ice core air bubble Stable isotope ratio Gaseous oxygen Glacier variation Late Holocene Tibetan Plateau

Model-based orbital-scale precipitationδ18O variations and distinct mechanisms in Asian monsoon and arid regions被引量：1: 《National Science Review》2022年第11期126-143,共18页Xiaodong Liu Xiaoxun Xie Zhengtang Guo Zhi-Yong Yin Guangshan Chen; supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB40030100);the National Natural Science Foundation of China (41888101,41991254, 41690115 and 42105049); The past Asian precipitationδ^(18)O(δ^(18)O_(p))records from stalagmites and other deposits have shown significant orbital-scale variations,but their climatic implications and regional differences are still not full...; 关键词：orbital scale precipitationδ18O transient simulation Asian monsoon arid region

浓香型白酒中风味物质氧稳定同位素的检测方法被引量：5: 《酿酒科技》2022年第7期136-138,144,共4页张倩谢正敏魏金萍黄箭范涛叶华夏安明哲; 建立一种检测浓香型白酒中4种重要风味物质氧稳定同位素(δ^(18)O)的方法。用气相色谱仪将浓香型白酒样品中各风味物质与其他含氧物质分离,采用裂解转化装置GC Isolink将各风味物质转化为CO,最后利用稳定同位素比值质谱仪检测浓香型白...; 关键词：浓香型白酒氧稳定同位素(δ18O) 稳定同位素比值质谱仪(IRMS) 风味物质

基于地理探测器分析青藏高原降水δ^(18)O空间分异特征被引量：6: 《干旱区研究》2021年第5期1199-1206,共8页席文涛高晶; 国家自然科学基金面上项目(41871068);国家自然科学基金优秀青年科学基金项目(41922002)。; 地理探测器是研究地理现象的空间分异性,并且定量分析其驱动因子的一种统计方法。利用地理探测器方法对青藏高原24个站点的降水δ^(18)O年均值进行了分析,该方法可在一定程度上反映青藏高原降水δ^(18)O年均值的空间分异性,得出纬度、...; 关键词：青藏高原降水δ18O 空间分异性地理探测器

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