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Science china Earth sciences 2010年第12期53卷 159-172页

作者： ding zhongli1,duan xiaonan2,ge quansheng3 & zhang zhiqiang4 1 cas key lab of cenozoic geology and environment,institute of geology and geophysics,chinese academy of sciences,beijing 100029,china 2 The general Office of chinese academy of sciences,beijing 100864,china 3 institute of geographic sciences and Natural Resources Research,chinese academy of sciences,beijing 100101,china 4 The Lanzhou Branch of the National Science Library,Scientific Information Center for Resources and environment of cas,Lanzhou 730000,china cas key lab of cenozoic geology and environment Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China The general Office of chinese academy of sciences Beijing China institute of geographic sciences and Natural Resources Research Chinese Academy of Sciences Beijing China The Lanzhou Branch of the National Science Library Scientific Information Center for Resources and Environment of CAS Lanzhou China

We evaluated and ran simulations for seven proposals for the reduction of global CO2 emissions (e.g.,those of the Intergovernmental Panel on Climate Change (IPCC),United Nations Development Program,and Organization for Economic Cooperation and Development).All the proposals ignored the fact that the cumulative CO2 emissions per capita for developed countries were 7.54 times those for developing countries in the historical period of *** proposals further deliberately allocate 2006-2050 emission quotas to developed countries that are 2.3-6.7 times those to developing *** will seriously violate the development rights of developing *** paper clearly states that proposals such as that of the IPCC are not suitable references for future international climate change negotiations as they violate the fundamentals of fairness and equity in international relationships and the UNFCCC principle of "common but differentiated responsibilities".Comparing estimates of emissions in china in the scenario of rapid development with low-CO2-emission technology in the period 2006-2050 with estimates for other countries and groups,we find that china can logically and morally argue for equivalent emission rights even in the case of the strict CO2 concentration target of 450-470 ppmv.

关键词： CO2 emission reduction cumulative CO2 emission per capita emission rights

On-line measurements ofδ15N in biological fluids by a modified continuous-flow elemental analyzer with an isotope-ratio mass spectrometer

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On-line measurements ofδ15N in biological fluids by a modif...

中国科学院地质与地球物理研究所2008学术年会

作者： Xu Wang~(1*),Lianjun Feng~2,Fusong zhang~2 and zhongli ding~1 1 key laboratory of cenozoic geology and environment,institute of geology and geophysics,chinese academy of sciences, RO.Box 9825,beijing 100029,china 2 lab for Stable Isotope geochemistry,institute of geology and geophysics,chinese academy of sciences,RO.Box 9825, beijing 100029,china

A modified continuous-flow elemental analyzer coupled to an isotope-ratio mass spectrometer (modified EA-IRMS) was tested for on-lineδN measurement on urea solution and biological fluids (***).The elemental analyzer configuration was adapted by adding a U-shaped cold trap and an X-pattem four-way valve for on-line trapping/venting of water from the liquid *** indicate that theδN ratios show little variation(standard deviation(SD) = 0.05‰) with a sample size above the equivalent N yield of 0.2 mg urea(0.092 mg N) when the mass spectrometer conditions were carefully *** contrast,a significant logarithmic decrease inδN with sample size was observed but this can be offset by applying a linearity correction or blank correction when the sample size is between equivalent N yields of 0.05 and 0.2 mg *** blank correctedδN ratios give an overall precision of .16‰whereas the average precision forδN corrected using combined linearity and shift correction is 0.05‰.The relatively large variation in blank correctedδN values may be attributed to the variability of the blankδN in the ***,the blank correction should be carefully performed in routine *** a result,the linearity range of a modified EA-IRMS can be extended to a minimum sample size of 0.023 mg *** addition, the reproducibility of the new system is good,as indicated by the precision(2‰) for a set of standards and *** data show that fluids containing nitrogen can be successfully analyzed in the modified EA-IRMS.

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全球变暖对水循环的影响:回顾与展望

第四纪研究 2024年第5期44卷 1079-1092页

作者：杨石岭陈祚伶黄晓芳唐自华张师豪姜文英丁仲礼中国科学院地质与地球物理研究所岩石圈演化与环境演变全国重点实验室北京100029 中国科学院大学地球与行星科学学院北京100049

20世纪70年代以来,全球气候变化引发了学术界的广泛关注。本文简要回顾了最近几十年来不同时间尺度气候变化预测的观点,总结了全球变暖可能引发的环境效应。在此基础上,梳理了新生代地质温暖期的东亚环境状况。从哲学和地质历史的角度... 详细信息

20世纪70年代以来,全球气候变化引发了学术界的广泛关注。本文简要回顾了最近几十年来不同时间尺度气候变化预测的观点,总结了全球变暖可能引发的环境效应。在此基础上,梳理了新生代地质温暖期的东亚环境状况。从哲学和地质历史的角度看气候维持不变是不可能的,未来要么在北半球太阳辐射的驱动下变冷,要么在温室气体的作用下变暖。地质记录和气候模拟结果大多显示,地质温暖期东亚夏季风雨带北进、降水增加;古增温导致水汽含量增加、热带辐合带北移和西太平洋副热带高压扩张是东亚季风降水增加的根本原因;从冰期-间冰期尺度看,全球变暖不仅对东亚地区是利大于弊,对全球大部分地区也是利大于弊;就提升未来气候变化预测和预估准确性而言,加强气候系统内部自然变率研究是当务之急。

关键词：古增温地质记录东亚夏季风大气CO_(2)浓度

Metallogenetic epoch and mechanism of the tungsten ore in Yushan, Beishan orogenic belt, Gansu

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chinese Science Bulletin 2008年第8期53卷 1222-1230页

作者： zhang XinHu SU Li CUI XueJun ding ShuHong zhang JianGuo CHEN Li School of Resources and environment Lanzhou University Lanzhou 730000 China The geological lab Center and State key laboratory of geological Processes and Mineral Resources China University of Geosciences Beijing 100083 China Gansu Bureau of geology and Mineral Exploration and Development Lanzhou 730000 China No.4 geological Exploration institute Gansu Bureau of Geology and Mineral Exploration and Development Jiuquan 735000 China Gansu institute of geological Survey Lanzhou 730000 China laboratory of Electron Microscopy School of Physics Peking University Beijing 100871 China

Using SHRIMP zircon U-Pb dating methods and cathodoluminescence (CL) technique, we have pre- cisely dated ore samples from tungsten ore deposit, ore-bearing volcanic-sedimentary strata and granite in the Yushan region within the east Tianshan-Beishan W-bearing zone. This study reveals Yu- shan tungsten ore deposit zone formed in 250 ± 9 Ma, and it is closely associated with the Permian granites and felsic volcanic rocks. This new type of tungsten ore deposit in the east Tianshan-Beishang multiple-metallogenetic province may probably be associated with the regionally right-literal shearing after the main Carboniferous collisional orogeny, and the formation of pull-apart basin and the felsic magmatism.

关键词：甘肃钨矿石锆石二叠纪

The Eocene corundum-bearing rocks in the Gangdese arc, south Tibet:Implications for tectonic evolution of the Himalayan orogen

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geoscience Frontiers 2018年第5期9卷 1337-1354页

作者： Zeming zhang Huixia ding Xin Dong Zuolin Tian Hongchen Mu Mengmei Li Shengkai Qin Zhixiang Niu Ning zhang institute of geology Chinese Academy of Geological Sciences School of Earth sciences and Resources China University of Geosciences Beijing

The genesis of Liangguo corundum deposit in the southern Gangdese magmatic arc, east-central Himalaya, remains unknown. The present study shows that the corundum-bearing rocks occur as lenses with variable sizes in the Eocene gabbro that intruded into marble. These corundum-bearing rocks have highly variable mineral assemblage and mode. The corundum-rich rocks are characterized by containing abundant corundum, and minor spinel, ilmenite and magnetite, whereas the corundum-poor and corundum-free rocks have variable contents of spinel, plagioclase, sillimanite, cordierite, ilmenite and magnetite. The host gabbro shows variable degrees of hydration and carbonization. The corundum grains are mostly black, and rarely blue, and have minor Fe O and TiO_2. The spinel is hercynite, with high Fe O and low Mg O contents. The corundum-bearing rocks have variable but high Al_2O_3, FeO and TiO_2, and low SiO_2 contents. Inherited magmatic and altered zircons of the corundum-bearing rocks have similar U e Pb ages(~47 Ma) to the magmatic zircons of the host gabbro, indicating corundum-bearing rock formation immediately after the gabbro intrusion. We considered that emplacement of gabbro induced the contact metamorphism of the country-rock marble and the formation of silica-poor fluid. The channeled infiltration of generated fluid in turn resulted in the hydrothermal metasomatism of the gabbro, which characterized by considerable loss of Si from the gabbro and strong residual enrichment of Al. The metasomatic alteration probably formed under Pe T conditions of ~2.2 -2.8 kbar and ~650 -700℃. We speculate that SiO_2, CaO and Na_2O were mobile, and Al_2O_3, FeO, TiO_2 and high field strength elements remained immobile during the metasomatic process of the gabbro. The Liangguo corundum deposit, together with metamorphic corundum deposits in Central and Southeast Asia, were related to the cenozoic Himalayan orogeny, and therefore are plate tectonic indicators.

关键词： Corundum deposit Gangdese magmatic arc Metasomatism Gabbro Himalayan orogen

Influence of plant coverage and environmental variables on pollen productivities:evidence from northern china

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Frontiers of Earth Science 2020年第4期14卷 789-802页

作者： Kaixiu zhang Wen Qin Fang Tian Xianyong Cao Yuecong Li Jule Xiao Wei ding Ulrike Herzschuh Qinghai Xu College of Resource environment and Tourism Beijing Key Laboratory of Resource Environment and GISCapital Normal UniversityBeijing100048China key laboratory of Alpine Ecology Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing100101China Alpine Paleoecology and Human Adaptation Group(ALPHA) Key Laboratory of Alpine EcologyInstitute of Tibetan Plateau ResearchChinese Academy of Sciences(CAS)Beijing100101China College of Resources and environment sciences Hebei Normal UniversityShijiazhuang050024China key laboratory of cenozoic geology and environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China institute of geological sciences PalaeontologyFree University of BerlinBerlin12249Germany Alfred Wegener institute Helmholtz Center for Polarand Marine Research Research Unit PotsdamPotsdam14473Germany institute of Earth and environmental sciences University of PotsdamPotsdam14476Germany

Pollen productivity is a critical parameter in the interpretation of pollen-vegetation relationships,and in the quantitative reconstructions of past vegetation from fossil pollen ***-year monitoring records were collected for 143 pollen traps in various parts of northern china,together with modern vegetation *** Pollen Productivity Estimates(APPE)were calculated for 11 taxa using the ratio of pollen influx to plant coverage at each applicable sampling site,in which the plants of the target taxon were *** Pollen Productivity Estimates(RPPE)were calculated for the 11 taxa(taking Poaceae as the reference taxon)at those sites in which each taxon occurred together with *** and Chenopodiaceae were found to have the highest RPPEs and the largest RPPEs ranges,while Pinus and Quercus also had higher RPPEs than Poaceae;Abies,Betula,Larix,Picea and Cyperaceae had relatively low *** in RPPE between different areas may be explained by variations in climatic conditions,plant coverage and land use practices which might influence plant growing *** effect that variations in pollen productivity can have on vegetation reconstructions was demonstrated by applying these distinct RPPEs to reconstructions of Holocene vegetation in the Lake Daihai area(northern china),such as a large range of RPPE produces a large range of plant *** in RPPEs within a single taxon,related to vegetation coverage and climatic conditions,therefore need to be considered in future vegetation reconstructions.

关键词： pollen influx pollen productivity vegetation reconstruction REVEALS model northern china

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分布式光纤传感技术研究和应用的现状及未来

光学学报 2024年第1期44卷 3-65页

作者：张旭苹张益昕王亮余贶琭刘波尹国路刘琨李璇李世念丁传奇汤玉泉尚盈王奕首王晨王峰樊昕昱孙琪真谢尚然吴慧娟吴昊王花平赵志勇南京大学智能光感知与调控技术教育部重点实验室江苏南京210023 华中科技大学光学与电子信息学院湖北武汉430074 北京交通大学信息科学研究所北京100044 之江实验室光纤传感研究中心浙江杭州311100 重庆大学光电技术及系统教育部重点实验室重庆400044 天津大学精密仪器与光电子工程学院天津300072 中国电力科学研究院有限公司北京100192 中国煤炭地质总局勘查研究总院北京100039 中油奥博(成都)科技有限公司四川成都611731 中国科学院合肥物质科学研究院安徽光学精密机械研究所光子器件与材料安徽省重点实验室安徽合肥230031 齐鲁工业大学(山东省科学院) 山东省科学院激光研究所山东济南250104 厦门大学航空航天学院福建厦门361005 上海交通大学电子信息与电气工程学院区域光纤通信网与新型光通信系统国家重点实验室上海200240 北京理工大学光电学院信息光子技术工信部重点实验室北京100081 电子科技大学光纤传感与通信教育部重点实验室四川成都611731 兰州大学土木工程与力学学院甘肃兰州730000

我国大型基础设施的建设规模已多年位居世界之首,分布式光纤传感技术(DOFS)作为大型基础设施健康状态实时监测最有潜力的技术,近年来得到了迅速发展。针对DOFS在技术和应用的突破上面临的挑战,在介绍DOFS各技术基本工作原理、发展历史... 详细信息

我国大型基础设施的建设规模已多年位居世界之首,分布式光纤传感技术(DOFS)作为大型基础设施健康状态实时监测最有潜力的技术,近年来得到了迅速发展。针对DOFS在技术和应用的突破上面临的挑战,在介绍DOFS各技术基本工作原理、发展历史、现状以及典型应用原理和方案等的基础上,对其工作新机理、系统设计方案、研究发展方向等进行了阐述和讨论。

关键词：光纤光学分布式光纤传感技术光时域反射仪光频域反射仪干涉型分布式光纤传感

中国亚热带表土孢粉分布规律及其与气候的关系研究

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第四纪研究 2024年第3期44卷 638-655页

作者：何玲玲黄康有陈聪汤永杰张潇郑卓吕厚远马春梅肖霞云张芸赵艳中山大学地球科学与工程学院广东省地球动力作用与地质灾害重点实验室广东珠海519082 南方海洋科学与工程广东省实验室(珠海) 广东珠海519082 中国科学院地质与地球物理研究所中国科学院新生代地质与环境重点实验室北京100029 南京大学地理与海洋科学学院江苏南京210023 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室江苏南京210008 中国科学院东北地理与农业生态研究所黑土地保护与利用全国重点实验室吉林长春130102 中国科学院地理科学与资源研究所陆地表层格局与模拟院重点实验室北京100101

孢粉分析是古气候定量重建最可靠的方法之一,现代孢粉分布规律及其与气候因子之间关系的建立对于利用化石孢粉资料开展古气候定量重建至关重要。本研究以中国亚热带地区1140个表土孢粉样品为研究对象,通过冗余分析(Redundancy Analysis... 详细信息

孢粉分析是古气候定量重建最可靠的方法之一,现代孢粉分布规律及其与气候因子之间关系的建立对于利用化石孢粉资料开展古气候定量重建至关重要。本研究以中国亚热带地区1140个表土孢粉样品为研究对象,通过冗余分析(Redundancy Analysis)等方法,探讨中国亚热带地区表土孢粉分布规律及其与气候的关系。研究结果表明:1)亚热带地区表土孢粉种类丰富,以松属(Pinus)、栲属(castanopsis)、青冈属(Cyclobalanopsis)、桤木属(Alnus)、落叶栎类(Quercus)等孢粉种类最为常见,区域内5个植被带呈现出不同的孢粉组合;2)孢粉的空间分布具有显著的经度、纬度、海拔递变性,特定含量的孢粉具有地理指示意义;3)冬季平均降水量(MWP)是影响亚热带表土孢粉分布的关键气候因子,在选择气候定量重建参数时应优先考虑,此外,1月平均温度(Mtco)、冬季平均相对湿度(MWH)、7月平均温度(Mtwa)和7月平均相对湿度(Mhwa)对亚热带表土孢粉分布也具有重要影响,与MWP共同解释了亚热带大部分的表土孢粉组成变化;4)影响北亚热带、东部中亚热带、东部南亚热带、西部中亚热带、西部南亚热带表土孢粉分布的主要气候因子分别为年平均温度(MAT)、夏季平均相对湿度(MSH)、冬季平均降水量(MWP)、1月平均温度(Mtco)、7月平均降水量(Mpwa),但低λ1/λ2值表明气候因子的相对解释力较弱,在气候重建时需谨慎对待;5)亚热带地区孢粉种类指示不同的气候条件,如栲属、大戟科(Euphorbiaceae)、野桐属(Mallotus)和枫香树属(Liquidambar)等孢粉种类喜湿喜暖,而桤木属、桦木属(Betula)、榛属(Corylus)、落叶栎类和硬叶栎类(Quercus-sclerophyllous type)等孢粉种类更倾向于分布在寒冷气候环境中。

关键词：亚热带表土孢粉分布规律气候因子 RDA分析

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上新世数值模拟揭示气候周期空间差异的机理

Science Bulletin 2023年第2期68卷 146-149,M0003页

作者：黄晓芳杨石岭 Alan Haywood Julia Tindall 姜大膀王永达孙敏敏张师豪丁仲礼 key laboratory of cenozoic geology and environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary sciences University of Chinese Academy of SciencesBeijing 100049China School of Earth and environment University of LeedsLeeds LS29JTUK institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China

上新世(5.33~2.58 Ma)是距今最近的大气CO_(2)浓度超过400 ppmv的暖期,是理解未来气候变化的地质历史相似型.地质记录显示,上新世气候主要响应地球倾角和岁差变化,比如深海氧同位素和高纬陆相记录表现出强的倾角周期(41 ka),低纬和地中... 详细信息

上新世(5.33~2.58 Ma)是距今最近的大气CO_(2)浓度超过400 ppmv的暖期,是理解未来气候变化的地质历史相似型.地质记录显示,上新世气候主要响应地球倾角和岁差变化,比如深海氧同位素和高纬陆相记录表现出强的倾角周期(41 ka),低纬和地中海地区的粉尘和花粉记录以岁差周期(21 ka)为主.然而,这些气候周期空间差异的机制尚不清楚.我们使用全球海气耦合模式HadCM3,开展了轨道参数极值实验.结果表明:(1)倾角变化主要对高纬温度影响显著(>5℃),很好地解释了高纬记录和受高纬冰量调节的深海氧同位素记录的41 ka周期;(2)岁差变化主要影响低纬降水(>2 mm d-1),很好地解释了低纬和地中海地区与季风活动相关的21 ka气候周期.

关键词：气候周期地中海地区上新世轨道参数地质记录高纬