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Climate Reconstruction based on Pollen Analysis in Inner Mongolia, North China from 51.9 to 30.6 kaBP

Acta Geologica Sinica(English Edition) 2013年第5期87卷 1444-1459页

作者： LI Suping david k.ferguson WANG Yong LI Jinfeng YAO Jianxin key Laboratory of Stratigraphy and Palaeontology Institute of Geology Chinese Academy of Geological Sciences Institute of Palaeontology University of Vienna State key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of Sciences

The palynomorph assemblage of lake sediments younger than 51.9 kaBP from Wulagai Gobi in Inner Mongolia was analyzed to reconstruct the vegetation and climate. From 51.9 to 30.6 kaBP, the vegetation was arid to semi-arid grassland with only slight changes. According to the palynomorphs, trees and shrubs were very rare. The large number and diversity of algae indicate the presence of a lake. Quantitative climatic conditions were reconstructed using the Best Analogues Method. The results indicate that the annual mean temperature was higher than that at present. The combination of temperature and annual precipitation suggests a change in the climate from cool dry to warm dry and then cool humid. Our results show that the annual precipitation values were mostly higher than that at present but were lower than 400 mm. It infers that the study area was already within the arid to semi-arid regions but with a stronger influence of the summer monsoon during 51.9 to 30.6 kaBP than at present. With slight differences mainly in time scale, the changing trend of the annual temperature curve is consistent with the other climatic records from Antarctica, Greenland, Hulu Cave （East China）, and the Tibetan Plateau during the last glacial period. From 30.6 kaBP to present, very few palynomorphs were detected in the samples. Hence, no information about the vegetation and climate could be extracted. Combined with other studies during Late Pleistocene, we presume that the reason for the lack of pollen during this period was caused by an abrupt temperature fall after 30.6 kaBP or that the lacustrine conditions were unsuitable for pollen deposition. It was probably incurred by the oxidation on land prior to deposition. But for those samples only with algae, it might be caused by the fact that algae could finish their life history in a very short time in a seasonal lake.

关键词： paleoclimate paleovegetation pollen analysis Late Pleistocene Inner Mongolia

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Tree barks as a natural trap for airborne spores and pollen grains from China

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Chinese Science Bulletin 2014年第19期59卷 2331-2339页

作者： Xiaoyan Song Subir Bera Yifeng Yao david k.ferguson Chengsen Li College of Agronomy Shanxi Agricultural University State key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Department of Botany University of Calcutta Department of Paleontology University of Vienna Althanstrasse 14 A-1090 Vienna Austria

The present article deals with the use of tree barks as a natural trap for airborne spores and pollen grains in *** study carried out at the southern part of Beijing Botanical Garden,Institute of Botany,Chinese Academy of Sciences has yielded a variety of palynomorphs mostly belonging to tree *** methodologies for extraction of palynomorphs from tree barks have been *** samples were collected from three taxa,i.e.,Paulownia fortunei Hemsl.(Scrophulariaceae),Quercus dentata Thunb.(Fagaceae),and Picea meyeri Rehder&***(Pinaceae)having different bark *** with a comparatively soft and fissured bark is believed to have a greater potential for trapping airborne spores and pollen grains compared to the stiff and less fissured barks of *** and the scaly bark of *** barks yield better data in terms of quantity and quality of trapped pollen and *** present study throws new light on the modern pollen rain,spore-pollen dispersal,and their deposition in and aroundBeijing Botanical Garden,and other different parts of China.

关键词：中国科学院现代花粉雨树皮形态孢子陷阱天然北京植物园植物研究所

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The first mitogenome of Lauraceae(Cinnamomum chekiangense)

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Plant Diversity 2024年第1期46卷 144-148页

作者： Changwei Bi Ning Sun Fuchuan Han kewang Xu Yong Yang david k.ferguson State key Laboratory of Tree Genetics and Breeding Co-Innovation Center for Sustainable Forestry in Southern ChinaKey Laboratory of Tree Genetics and Biotechnology of Educational Department of ChinaKey Laboratory of Tree Genetics and Silvicultural Sciences of Jiangsu ProvinceNanjing Forestry UniversityNanjing 210037China College of Information Science and Technology Nanjing Forestry UniversityNanjing 210037China Research Institute of Subtropical Forestry Chinese Academy of ForestryHangzhou 311400China Co-Innovation Center for Sustainable Forestry in Southern China College of Life SciencesNanjing Forestry UniversityNanjing 210037China Department of Paleontology University of ViennaViennaAustria

There are three distinct genetic systems in higher plants,the dominant nuclear genome and the semi-autonomous organelle genomes(plastids and mitochondria).In contrast to the conserved plastid genome(plastome),the plant mitochondrial genome(mitogenome)is characterized by an intriguing“evolutionary paradox”distinguished by a remarkably low mutation rate but with a significantly high rearrangement rate(Palmer and Herbon,1988;Lai et al.,2022).

关键词： autonomous distinguished Palmer

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Reconstructing vegetation and climate in the Nihewan Basinr North China,during the middle Pleistocene(〜603-587 ka)to trace the evolution of human environments

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Journal of Plant Ecology 2021年第3期14卷 372-383页

作者： Yun Zhu Yi-Feng Yao Qi Wei david k.ferguson Yu-Fei Wang State key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China Univcrsity of Chinese Academy of Sciences Beijing 100049China lkey Laboratory of Vertebrate Evolution and Human Origin of Chinese Academy of Sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China University of Vienna Institute of PalaeontologyVienna A-1090Austria

Aims The Nihewan Basin of North China,considered the cradle of Eastern civilization,contains a set of late Cenozoic strata and artifacts used by Homo ereettvs in the early Pleistocene(〜1.66 Ma to 780 ka)and the cranial bones and teeth of early *** from the late middle Pleistocene(~370 to 260 ka).Palynological studies provide an opportunity to explore the living environment of early *** Ralynological samples from the Hutouliang Section(-603-587 ka)of the Xiaodukou Formation of the Nihewan Basin were treated by heavy liquid *** on the palynological assemblages from the section,vegetation and climate in the Nihewan Basin were *** Findings The dynamic vegetation changed from temperate needle-and broad-leaved mixed forest-steppe(mainly Picea,Abies,Betula,luglans,Artemisia and Chenopodiaceae)to conifer forest(mainly Pinus,Picea and Abies),which saw the replacement of *** by early *** comparison of the Nihewan Basin with other human sites around the world during the same period reveals that early humans preferred to live in caves,accompanied by relatively open steppe or forest-steppe environments,inhabited by numerous ***,it is inferred that the emergence of dense conifer forest and the disappearance of open steppe environments in the Nihewan Basin at approximately 603-587 ka provide new evidence that early humans followed most mammals to steppe or forest-steppe environments and thus left the Nihewan *** new findings not only enrich our knowledge of early human behavior,such as their diet,migration and settlement,but also fill in gaps in paleovegetation and paleoenvironmental research in the Nihewan Basin during the middle Pleistocene(780-400 ka).

关键词： early human human evolution living environment spores and pollen paleoecology

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Bridging the knowledge gap on the evolution of the Asian monsoon during 26–16 Ma

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The Innovation 2021年第2期2卷 23-28页

作者： Gan Xie Jin-Feng Li Shi-Qi Wang Yi-Feng Yao Bin Sun david k.ferguson Cheng-Sen Li Tao Deng Xiao-Dong Liu Yu-Fei Wang State key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of SciencesBeijing 100044China State key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710075China Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China Department of Paleontology University of Vienna1090 ViennaAustria University of Chinese Academy of Sciences Beijing 100049China

The evolution of the Asian monsoon from the Late Oligocene to the Early Miocene is poorly ***,we first reconstruct the precipitation data of central Tibet during 26–16 million years ago(Ma),applying the coexistence approach to sedimentary pollen data,and detect an intensified Asian monsoon with1.35 Ma and0.33 Ma *** modeling is used to show the importance of paleogeographic location in the development of the *** addition,the results of spectral analysis suggest that the fluctuations in the Asian monsoon during 26–16 Ma can be attributed to the long-period cyclicities in obliquity(1.2 Ma).These findings provide climate data that can be used to understand the Asian monsoon evolution during the Late Oligocene to Early Miocene and highlight the effects of paleogeographic patterns and long-period orbital forcings on the tectonic-scale evolution of the Asian monsoon.

关键词： central Tibetan Plateau Lunpola Basin precipitation Asian monsoon Oligocene to Miocene climate change

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A new pollen classification of Chenopodiaceae for exploring and tracing desert vegetation evolution in the eastern central Asia

A new pollen classification of Chenopodiaceae for exploring ...

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中国植物学会第十六次全国会员代表大会暨85周年学术年会

作者： kaiqing Lu Min Li Guohong Wang Liansheng Xu david k.ferguson Anjali Trivedi Jing Xuan Ying Feng Jinfeng Li Gan Xie Yifeng Yao Yufei Wang State key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of Sciences University of Chinese Academy of Sciences State key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of Sciences University of Vienna Institute of Palaeontology

Members of the Chenopodiaceae are the most dominant elements in the central Asian *** different genera and species within this family are common in desert vegetation *** it prove possible to link pollen types in this family to specific desert vegetation,it would be feasible to trace vegetation successions in the geological ***,the morphological similarity of pollen grains in the Chenopodiaceae rarely permits identification at the generic *** some pollen classifications of Chenopodiaceae have been proposed,none of them tried to link pollen types to specific desert vegetation types in order to explore their ecological *** on the pollen morphological characters of 13 genera and 24 species within the Chenopodiaceae of eastern central Asia,we provide a new pollen classification of this family with six pollen types and link them to those plant communities dominated by Chenopodiaceae,e.g.,temperate dwarf semi-arboreal desert（Haloxylon-type）,temperate succulent halophytic dwarf semi-shrubby desert（Suaeda-,kalidium-and Atriplex-types）,temperate annual graminoid desert（kalidium-type）,temperate semishrubby and dwarf semi-shrubby desert（kalidium-,Iljinia-,and Haloxylon-types） and alpine cushion dwarf semi-shrubby desert（krascheninnikovia-type）.These findings represent a new approach for detecting specific desert vegetation types and deciphering ecosystem evolution in the eastern central Asia.

关键词： Arid central Asia Chenopodiaceae Desert Pollen types Vegetation

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Mesocyparis(柏科)的演化历史及该属对白垩纪-古近纪之交气候变化的响应

Mesocyparis(柏科)的演化历史及该属对白垩纪-古近纪之交气候变化...

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中国古生物学会第十二次全国会员代表大会暨第29届学术年会

作者：崔一鸣王伟王宇飞杨健 david k.ferguson 中国科学院植物研究所系统与进化植物学国家重点实验室中国科学院南京地质古生物研究所维也纳大学古生物学院

在白垩纪-古近纪之交(约66.0 Ma)发生了以非鸟类恐龙绝灭为标志的第五次全球生物大绝灭,这次绝灭事件改变了陆地生态系统和一些生物的演化方向,同期还伴随有全球性的显著降温等重大地质事件。在整个生物界中,动物类群跨越白垩纪-古近纪... 详细信息

在白垩纪-古近纪之交(约66.0 Ma)发生了以非鸟类恐龙绝灭为标志的第五次全球生物大绝灭,这次绝灭事件改变了陆地生态系统和一些生物的演化方向,同期还伴随有全球性的显著降温等重大地质事件。在整个生物界中,动物类群跨越白垩纪-古近纪界线前后的形态变化前人已多有报道;而对于植物类群如何跨越白垩纪-古近纪之交这一科学问题,迄今了解不多。分布于北半球东北亚和北美西部的Mesocyparis(柏科)是生存于晚白垩世马斯特里赫特期至古新世的绝灭属,该属为我们解读植物如何响应白垩纪-古近纪之交的气候变化提供了机会。我们从发现黑龙江嘉荫早古新世的Mesocyparis sinica新化石入手,将全球该属全部5种的形态变化置于其系统发育框架下,结果发现该属最显著形态变化为其球果的体积增大了约1.3倍,类比研究揭示现代柏科近缘类群的球果大小与温度呈负相关,揭示这个变化很可能是由降温驱动的。更为重要的是,我们首次定量刻画了在大约70-60 Ma的时段内,该属连同水杉属(广义柏科)和Nordenskioeldia(昆栏树科)的分布北界都往南迁移了大约4-5°,即450-550km。这些发现表明,植物类群的分布北界受到白垩纪-古近纪之交降温的影响而南迁是一个普遍规律。本文首次提供了植物类群如何从形态学和地理分布变化两方面来响应白垩纪-古近纪之交气候变化的案例,并拓展了我们对于生物适应气候变化的认知。

关键词： Mesocyparis 柏科白垩纪-古近纪之交形态演化气候变化

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陕西渭南晚始新世植物化石的发现及其初步研究

陕西渭南晚始新世植物化石的发现及其初步研究

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中国古生物学会第十二次全国会员代表大会暨第29届学术年会

作者：贾慧 david k.ferguson 孟祥宁张艺一陈姗姗张新远西安石油大学维也纳大学古生物学院

陕西省渭南市位于关中渭河平原东部,南依秦岭造山带,北临鄂尔多斯高原,西接鄂尔多斯西南缘弧形构造带,东濒黄河,地处北半球中低纬度地区,平均海拔400m,属暖温带半湿润半干旱季风气候,现代植被主要为暖温带落叶阔叶林。林木区系成分主要... 详细信息

陕西省渭南市位于关中渭河平原东部,南依秦岭造山带,北临鄂尔多斯高原,西接鄂尔多斯西南缘弧形构造带,东濒黄河,地处北半球中低纬度地区,平均海拔400m,属暖温带半湿润半干旱季风气候,现代植被主要为暖温带落叶阔叶林。林木区系成分主要为华北和西北的温性、寒性树种。该地区堆积着连续的始新世以来的地层序列,哺乳动物化石产出多有报道,但植物化石却不多见。仅陶君容1965年报道了秦岭以北渭南阳郭一带上古近系白鹿塬组植物化石,除为数众多的Palibinia外,还包括Ulmus、Corylus、Sophora、Rosa、Spiraea、Crataegus、Lespedeza等属的叶和小叶的印痕化石。近年来,作者及团队成员多次进行野外勘查,在渭南南部庙湾村,赵咀子等地上古近系发现了保存良好的植物大化石共计200余块,其中约50余块保存有角质层。化石采集点出露地层下部为巨大灰白色云母砂岩,其上为卵石层,中部为灰绿色细砂岩浅波状交错层理与黄色粉砂岩及粘土互层,上部为灰白色砂岩,植物化石产于出露地层中部的黄色粉砂岩中。通过运用年代地层学、岩石地层学和生物地层学方法,结合区域对比和植物化石组合资料的综合分析,厘定了陕西渭南上古近系含化石层位为白鹿塬组,时代为晚始新世。运用形态学和解剖学方法,比较了陕西渭南晚始新世白鹿塬组植物群常见化石的形态和解剖特征,初步确定了该植物群主要化石类群的分类位置和亲缘类群。当前植物群以被子植物占大多数,主要为榆属Ulmus、榛属Corylus、豆科Leguminosae、壳斗科Fagaceae、桦木科Betulaceae等,以及槭属Acer的翅果、单子叶植物叶片,和一些植物碎片。证实了该地区晚始新世植物类型多为温带,暖温带植物,及部分亚热带至热带小叶植物,揭示了当时植被已具垂直分带性和初步的森林分层结构。

关键词：植物化石晚始新世陕西渭南白鹿塬组古植被

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中国华北山西张村晚上新世植被、气候及其古季风活动

中国华北山西张村晚上新世植被、气候及其古季风活动

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中国古生物学会第26届学术年会

作者：秦锋 david k.ferguson Reinhard Zetter 王宇飞 Svetlana Syabryaj 李金锋杨健李承森中国科学院植物研究所系统与进化植物学国家重点实验室奥地利维也纳大学古生物研究所乌克兰国家科学院地质科学研究所

新近纪全球温度大体上呈现出先升后降,体现气候逐渐变凉的趋势。目前,以植物为气候代用指标开展的新近纪气候定量化研究的结果已经清楚地揭示欧洲、北美大陆上的气候变化存在地区差异。为理解东亚新近纪气候变化和欧亚大陆洲际气候差异... 详细信息

新近纪全球温度大体上呈现出先升后降,体现气候逐渐变凉的趋势。目前,以植物为气候代用指标开展的新近纪气候定量化研究的结果已经清楚地揭示欧洲、北美大陆上的气候变化存在地区差异。为理解东亚新近纪气候变化和欧亚大陆洲际气候差异,选取了东亚大陆气

关键词：晚上新世植被气候东亚季风海拔华北张村

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叶片漂浮和机械破坏实验对解释叶化石层的意义

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宝石和宝石学杂志(中英文) 1991年第4期 41-41页

作者： david k.ferguson 刘金华

由于叶片多少有空隙,进入水体时就呈漂浮状。叶片下沉的实际时间是有差别的,这不仅取决于它们的结构,也取决于诸如湍流、温度和水体通风性这样的环境因素。因此,某植物群落的叶片脱落后进入流水上面,原样就会分解成一些残片。这些残片... 详细信息

由于叶片多少有空隙,进入水体时就呈漂浮状。叶片下沉的实际时间是有差别的,这不仅取决于它们的结构,也取决于诸如湍流、温度和水体通风性这样的环境因素。因此,某植物群落的叶片脱落后进入流水上面,原样就会分解成一些残片。这些残片又与各种来源的叶片混合。这样,根据水运动强度,叶片组合可能很象原植物,也可能不象。水温低和通风性好可以使叶片长期漂浮,这意味着叶片长距离扩散极可能在高纬度地区见到。在热带区域,叶片组合往往是准原地的(亚原地生成的)。叶片一旦部分或全部浸透了水,就下沉。下降的速

关键词：叶片波痕沉积构造

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