Zhe-Kun Zhou

Zhe-Kun Zhou
Chinese Academy of Sciences | CAS · Xishuangbanna Tropical Botanical Garden

PhD

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424
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Publications

Publications (424)
Article
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The growth of the Qinghai-Tibetan Plateau (QTP) during the Cenozoic drove dramatic climate and environmental change in this region. However, there has been limited comprehensive research into evolution of climate during this interval. Here we present a quantitative reconstruction using Bioclimatic Analysis (BA) and Joint Probability Density Functio...
Article
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新生代青藏高原持续生长, 气候环境经历了剧烈变化, 但是其气候演变缺乏综合性研究. 文章整合了青藏高原地区古近纪和新近纪(66~2.58Ma)共48个化石点的植物大化石和孢粉数据, 采用生物气候分析法和联合概率密度函数法定量重建了重要的古气候参数, 两者的结果均表明: 从古近纪至新近纪, 青藏高原的温度和降水呈现波动降低的趋势. 利用HadCM3模型对青藏高原古近纪和新近纪不同时期进行古气候模拟, 结果显示: 自晚始新世, 温度和降水量的分布规律主要受地形地貌的影响, 温度由之前的纬度分布格局转变为由地形地貌主导的分布格局; 随着青藏高原东北向生长, 温度降低和降水减少的范围向高原的东北方向扩展. 通过综合对比植物化石数据定量重建、模型模拟和其他代理指标恢复的古气候, 结果表明: 青藏高原隆...
Article
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Biodiversity hotspots are key regions for understanding the evolutionary history of biodiversity as well as the processes initiating and maintaining it [...]
Article
Quantifying the interactions between topography, climate and plant diversity within one of the world's biodiversity hotspots, the southeastern margin of the Tibetan Plateau, remains elusive due to few reliable quantitative paleoelevation reconstructions, precise geological age constraints and well-preserved plant fossils. The Lühe Basin, on the sou...
Article
Cupressaceae fossil tree stumps from the early Oligocene Lühe coal mine in southwestern China contain abundant quartz-petrified damage traces. The wood fossils were assigned to Taxodioxylon (very similar to extant Taxodium) based on wood anatomy analysis. Within the woods, three types of arthropods- and one fungus-mediated ichnofossils LHIF 1–4 (Lü...
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Interannual variability in the global land carbon sink is strongly related to variations in tropical temperature and rainfall. This association suggests an important role for moisture-driven fluctuations in tropical vegetation productivity, but empirical evidence to quantify the responsible ecological processes is missing. Such evidence can be obta...
Article
The antiquity of the tropical Asian flora is being revealed by recent detailed work on a number of Cenozoic plant megafossil sites, some of which have been radiometrically dated for the first time, but our knowledge of how the highly diverse modern biota came into being remains poor due to a sparsity of records. In this paper, we describe fossil pl...
Article
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Extant Bauhinia (Leguminosae) is a genus of 300 species of trees, shrubs, and lianas, widely distributed in pantropical areas, but its diversification history in southeastern Asia, one of its centers of highest diversity, remains unclear. We report new fossils of three Bauhinia species with cuticular preservation from the Paleogene of Puyang Basin,...
Article
Sambucus L. (Adoxaceae) has a rich fossil record with a major concentration in Europe and North Asia but a scarcity in relatively low latitudes of the Northern Hemisphere. Herein, we report fossil endocarps of the genus from the late Pliocene Heqing Basin of northwestern Yunnan, South China, which are assigned to two species, namely S. alveolatisem...
Article
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Two new fossil taxa of the ash tree, namely F. zlatkoi Meng-Xiao Wu et J.Huang sp. nov. and Fraxinus cf. honshuensis Tanai et Onoe were reported from the early Oligocene of the Lühe flora, Yunnan Province, Southwest China. The fruit traits were used to assign the proposed species to the genus Fraxinus. These traits were a flattened and symmetrical...
Article
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Yunnan province, which only accounts for 4.1% of Chinese territory area, however, is the most biodiverse province in China. It harbors 19 333 higher plant species, which is more than half of higher plants in China, including 1 906 species of mosses belonging to 499 genera in 126 families, 1 363 species of fern belonging to 193 genera in 61 families...
Article
The genus Mucuna Adans. (Papilionoideae, Fabaceae) contains approximately 105 extant species. It is widely distributed in pantropical areas, with its center of diversity located in Asia. Recent molecular phylogenetic analyses investigated the historical biogeography of the genus; however, a lack of fossil evidence has limited a fuller understanding...
Preprint
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During the late Eocene to the early Oligocene, marine records document a globally congruent record of declining carbon dioxide concentrations, Antarctic icesheet growth, and associated reorganisation of the global climate system. In contrast, the few existing terrestrial records demonstrate high heterogeneity of environmental change and are difficu...
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Sclerophyllous evergreen broad-leaved forests, mainly made up of sclerophyllous oak, Quercus section Heterobalanus (Øerst.) Menitsky, Fagaceae, represent the most typical forest type in the Hengduan Mountains. Their distribution pattern is closely related to the growth and formation of the Qinghai-Tibetan Plateau (QTP). The oldest fossil record of...
Article
Recent paleobotanical investigations in Vietnam provide a good opportunity to improve our understanding of the biodiversity and paleoclimatic conditions in the geological past of Southeast Asia. Palms (Arecaceae) are a diverse family of typical thermophilous plants with a relatively low tolerance for freezing. In this study, we describe well-preser...
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The Qinghai–Tibetan Plateau (QTP) played a crucial role in shaping the biodiversity in Asia during the Cenozoic. However, fossil records attributed to insects are still scarce from the QTP, which limits our understanding on the evolution of biodiversity in this large region. Fulgoridae (lanternfly) is a group of large planthopper in body size, whic...
Article
The sedimentary basins of Yunnan, Southwest China, record detailed histories of Cenozoic paleoenvironmental change. They track regional tectonic and palaeobiological evolution, both of which are critically important for the development of modern floral diversity in southwestern China and throughout Asia more generally. However, to be useful, the se...
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Quantifying how land surface height, such as that of the Tibetan region, has changed with time is crucial for understanding a range of Earth processes, including atmospheric dynamics, biotic evolution and tectonics. Elevation reconstructions are highly uncertain and controversial, in part because of assumptions used in their calculation. The larges...
Article
While a recent molecular phylogeographical study shows that, Cladrastis, a small woody genus in the bean family (Leguminosae), may have been established in Asia after the middle to late Eocene, fossils of the genus have not been previously documented in the Paleogene of Asia. Here we report an infructescence and four fossil fruits of Cladrastis fro...
Article
The Hengduan Mountains region (HMR) on southeastern Tibetan Plateau, supports a high diversity of herbs, particularly in its subalpine to alpine ecosystems due to high altitude and cool temperate climate. Current understandings on the formation of such herbaceous richness is based chiefly on molecular phylogenies, while direct geological evidence i...
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The West Kunlun region forms the northern margin of the Tibetan Plateau, and sedimentation in this region contributed to plateau formation and its northwards expansion, as well as the development of central Asian aridification. However, the stratigraphic dating framework in this region has been ambiguous, hampering the understanding of both tectoni...
Article
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The growth of the Tibetan Plateau throughout the past 66 million years has profoundly affected the Asian climate, but how this unparalleled orogenesis might have driven vegetation and plant diversity changes in eastern Asia is poorly understood. We approach this question by integrating modeling results and fossil data. We show that growth of north...
Article
In this paper, we review evidence for a major biotic turnover across the Oligocene/Miocene in the Tibetan Plateau region. Based on the recent study of six well-preserved fossil sites from the Cenozoic Lunpola and Nima basins in the central Tibetan Plateau, we report a regional changeover from tropical/subtropical ecosystems in the Late Oligocene ec...
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Determining whether the high-latitude Bering land bridge (BLB) was ecologically suitable for the migration of mesothermal plants is significant for Holarctic phytogeographic inferences. Paleobotanical studies provide a critical source of data on the latitudinal positions of different plant lineages at different times, permitting assessment of the e...
Article
Tibet’s ancient topography and its role in climatic and biotic evo- lution remain speculative due to a paucity of quantitative surface- height measurements through time and space, and sparse fossil records. However, newly discovered fossils from a present eleva- tion of ∼4,850 m in central Tibet improve substantially our knowl- edge of the ancient...
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Tree-rings from upper forest boundary including treelines provide reliable indications of climatic changes as tree growth at treelines is highly sensitive to climate (temperature and moisture). Tibetan Plateau (TP) includes the highest elevation treeline in the world, and they show both temperature as well as moisture as a critical climatic factor...
Article
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Tree-rings from upper forest boundary including treelines provide reliable indications of climatic changes as tree growth at treelines is highly sensitive to climate (temperature and moisture). Tibetan Plateau (TP) includes the highest elevation treeline in the world, and they show both temperature as well as moisture as a critical climatic factor...
Article
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The Tibetan Plateau was built through a succession of Gondwanan terranes colliding with Asia during the Mesozoic. These accretions produced a complex Paleogene topography of several predominantly east-west trending mountain ranges separated by deep valleys. Despite this piecemeal assembly and resultant complex relief, Tibet has traditionally been t...
Article
Menispermaceae are a pantropical and temperate family with an extensive fossil record during the Paleogene, especially in North America and Europe, but with much less evidence from Asia. The latest fossil evidence indicates a succession of tropical to sub‐tropical flora on the central Tibetan Plateau during the Paleogene. However, the biogeographic...
Article
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Icacinaceae are well represented in the modern tropical flora of East Asia, but this family has no confirmed macrofossils from this region. Most of the unambiguous fossils (e.g., endocarps) are from the Paleogene of North America and Europe, where the family is no longer present. Here we report a fossil endocarp of the liana genus Iodes from the Ol...
Article
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The Asian paleotropical flora is characterized by abundance of endemic species, high biodiversity, and complex geological and climatic histories. However, the main driving mechanism underlying such high tropical biodiversity remains unclear. Hence, the present study aims to investigate the biogeographic origin of the Asian paleotropical flora by tr...
Article
Illigera (Hernandiaceae) is a liana genus distributed mainly in the tropical Asia and Africa. Previous fossil records suggested that Illigera was restricted in western North America during the Eocene. Recent paleobotanical investigation has unveiled a Paleogene flora that is totally different from today's vegetation in central Tibet. This provides...
Article
Herbivore damage patterns on fossil leaves are essential to explore the evolution of plant-herbivore interactions under paleoenvironmental changes and to better understand the evolutionary history of terrestrial ecosystems. The Eocene–Oligocene transition (EOT) is a period of dramatic paleoclimate changes that significantly impacted global ecosyste...
Article
The early Oligocene represents the beginning of the modern icehouse world. To better understand how vegetation and climate changed during this period, we reconstruct quantitively the early Oligocene vegetation and climate by analyzing fossil spore and pollen assemblages from Lühe basin, Yunnan Province, in southwestern China. The reconstructed pale...
Article
Ceratophyllaceae Gray is a cosmopolitan submersed family in angiosperm. The fossil record is mainly composed of fruits ranging in age from the Cretaceous to the Neogene within the Northern Hemisphere. However, its fossil record in Asia is sparse. Here we report on a fossil fruit attributed to Ceratophyllum aff. muricatum Cham. from the early middle...
Article
Yunnan at southeastern margin of the Tibetan Plateau is subject to frequent wildfires each year, while its wildfire history remains poorly known due to the lack of studies on palaeofire in the region. In this study, we report a local fire from the late Pliocene of northwestern Yunnan, based on macroscopic fossil charcoals recovered from the Sanying...
Article
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Holding particular biological resources, the Tibetan Plateau is a unique geologic-geographic-biotic interactively unite and hence play an important role in the global biodiversity domain. The Tibetan Plateau has undergone vigorous environmental changes since the Cenozoic, and played roles switching from "a paradise of tropical animals and plants" t...
Article
Premise: Apocynaceae is common in the fossil record, especially as seed remains from the Neogene of Europe and North America, but rare in Asia. Intrafamilial assignment is difficult due to the lack of diagnostic characters, and new fossil and modern data are needed to understand the paleobiogeography of this group. Methods: We studied three Apoc...
Article
Three fossil species of Equisetum (Equisetaceae) were reported from the Neogene of south-western China and northern Vietnam, based on well-preserved rhizomes with tubers. Equisetum cf. pratense Ehrhart from the middle Miocene of Zhenyuan County, Yunnan Province, China is characterised by a bunch of three ovate tubers with longitudinal ridges on the...
Article
A new fossil occurrence of Ostrya (Betulaceae) is reported based on 14 involucre impressions from the lower Oligocene of Lühe Basin, Yunnan Province, Southwest China. They are characterized by their bladder-like shape with longitudinal veins and perpendicular or branched intercostal veins that form a reticulate venation. The discovery of these foss...
Article
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This paper describes a plant megafossil assemblage from the Pliocene strata of Xiangzi, Zanda Basin in the western Qinghai-Tibet Plateau. Twenty-one species belonging to 12 genera and 10 families were identified. Studies show that the Pliocene vegetation in Zanda Basin was mostly deciduous shrub composed of Cotoneaster, Spiraea, Caragana, Hippophae...
Article
The extinct genus Limnobiophyllum (Araceae) has been considered a tentative link between the Aroideae and Lemnoideae subfamilies of Araceae. General understanding of morphological character evolution among these subfamilies has been limited due to the lack of preserved key structures in fossils such as infructescences. In this study, a new fossil s...
Article
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Background and aims: The inverse correlation between atmospheric CO2 partial pressure (pCO2) and stomatal frequency in many plants has been widely used to estimate palaeo-CO2 levels. However, apparent discrepancies exist among the obtained estimates. This study attempts to find a potential proxy for palaeo-CO2 concentrations by analysing the stoma...
Article
Many subtropical organisms exhibit an East Asian‐Tethyan disjunction, a distribution split between East Asia and the Mediterranean. The underlying mechanisms and timing have remained unclear to date. The evolutionary history of Quercus section Ilex Loudon, a representative East Asian‐Tethyan disjunct lineage with a rich and widespread fossil record...
Article
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Fossil records of endemic plants play an important role in recognizing the floristic history of East Asia and thereby facilitate the conservation of plant diversity in the region. However, the fossil record of many extant East Asian endemic genera remains poorly documented thus far. Here, we report an infructescence fossil of an East Asian endemic...
Article
The biodiversity history on the Qinghai‐Tibetan Plateau (QTP) has remained unclear for a long time. Recent palaeobotanical investigations provide opportunities for revealing the phytogeographic history on the QTP in deep time and for testing phylogeographic hypotheses. Lagokarpos is an extinct genus with unknown modern affinities. It is easily dist...
Article
In this paper, correlation between modern leaf physiognomy and climate in China are examined, to optimize the use of leaf characters as a palaeoclimate proxy. A large dataset was compiled, recording the distribution of leaf physiognomic characters among 3166 native dicot trees species across 732 calibration grids on a county level. Grids span a ran...
Article
In this study, we developed a tree-ring δ¹⁸O chronology of Abies delavayi from Diancangshan (25°41′N, 100°06′E), in the Hengduan Mountains of Southwest China, spanning 205 years (1810–2014 CE). Tree-ring δ¹⁸O from Abies delavayi showed the highest negative correlation with relative humidity in the spring (r = −0.59, P < 0.05). Therefore, we used ou...
Article
A substantial biotic interchange took place between Gondwanan India and Laurasia immediately following the India-Eurasia collision. Located just north of the collision zone, the role of the Tibetan Plateau in the geographic interchange of biota is still unknown because lack of fossil evidence. Here, well-preserved samara fossils of Ailanthus (the f...