Review of Palaeobotany and Palynology最新文献

{"title":"Cannabis pollen sources and dispersal in the Iberian Pyrenees during the last century: Preliminary results and proposals for future studies","authors":"Valentí Rull ,&nbsp;Javier Sigro ,&nbsp;Teresa Vegas-Vilarrúbia","doi":"10.1016/j.revpalbo.2024.105208","DOIUrl":"10.1016/j.revpalbo.2024.105208","url":null,"abstract":"<div><div>Meta-analyses of past pollen records have provided insights into the historical biogeography of <em>Cannabis</em> across the Iberian Peninsula (IP), with the southern Pyrenean flank being key to understanding cannabis cultivation and use during the Middle and Modern ages. However, studies on more recent times are rare. This paper offers a high-resolution comparison of the last century, particularly the significant <em>Cannabis</em> pollen peak observed in the mid-elevation Lake Montcortès between 1980 and 2000 CE, which was absent in the nearby highland Lake Sant Maurici. The Montcortès peak is linked to a phase of extensive hemp cultivation (1972–2006 CE) in the southeastern lowlands. The absence of a similar peak in Sant Maurici, despite the presence of other lowland pollen taxa, notably <em>Olea</em> and <em>Quercus</em>, suggests regional differences in pollen origin and dispersal likely influenced by wind patterns and rainfall. Studies on <em>Cannabis</em> pollen sources and dispersal are comparatively scarce and insufficient to provide a regional picture across the IP, similar to <em>Olea</em> or <em>Quercus</em>. However, the available data suggest that cannabis pollen is abundant mostly locally, in the vicinity of cannabis crops. The persistent presence of <em>Cannabis</em> pollen in Montcortès after 2000 CE likely reflects ongoing illegal cultivation. The study recommends combining paleoecological and aerobiological surveys to better understand pollen dynamics in the Iberian Pyrenees, with suggestions for future research based on these findings.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105208"},"PeriodicalIF":1.7,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reevaluation of pollen differentiation in Altingiaceae: Challenges in distinguishing deciduous (Liquidambar) and evergreen (Altingia) types using multivariate statistics and machine learning","authors":"Shunjie Zhang ,&nbsp;Limi Mao ,&nbsp;Yangjun Lai","doi":"10.1016/j.revpalbo.2024.105209","DOIUrl":"10.1016/j.revpalbo.2024.105209","url":null,"abstract":"<div><div>Altingiaceae, a family of woody plants, comprising evergreen <em>Altingia</em> and deciduous <em>Liquidambar</em> groups, exhibits distinct leaf morphology, yet both groups overlap in geographical range and climatic conditions. While some tropical <em>Altingia</em> species are confined to Myanmar, Thailand, Cambodia and India without <em>Liquidambar</em>, and some temperate <em>Liquidambar</em> species to northern China without <em>Altingia</em>. Their fossil pollen have significant implications in reconstructing palaeoclimate and historical biogeography, based on classification of <em>Altingia</em>-type and <em>Liquidambar</em>-type. However, the results of previous studies to differentiate pollen types of evergreen <em>Altingia</em> and deciduous <em>Liquidambar</em> were based on limited pollen specimens. Therefore pollen morphology of Altingiaceae and differentiation of above mentioned types needs reevaluation using more specimens from wider geographical range.</div><div>In this study, we present new findings on Altingiaceae pollen morphology from extensive collection of specimens and reassess the diagnostic features to distinguish evergreen and deciduous types. To improve the credibility of palaeoecological and palaeoclimatic interpretations, we applied multivariate statistical analyses to pollen size, number of pores, pollen wall thickness, and size and density of ornamental elements from light microscopy (LM) and Scanning Electronic Microscope (SEM) images. Additionally, random forest classification models were applied to test the accuracy of differentiating Altingiaceae pollen types. Our results reveal significant morphological overlap between the pollen of evergreen <em>Altingia</em> and deciduous <em>Liquidambar</em>, with classification models showing limited accuracy and explainability. Thus, fossil pollen of Altingiaceae cannot be confidently classified into evergreen or deciduous types, highlighting challenges in using their pollen morphology for taxonomic classification in palaeoecological research.</div></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105209"},"PeriodicalIF":1.7,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modern pollen distribution along a Himalayan elevation gradient in Central Nepal","authors":"Saraswati Neupane ,&nbsp;Khum Narayan Paudayal ,&nbsp;Lina Song ,&nbsp;Sima Humagain ,&nbsp;Binija Kaphle ,&nbsp;Jharana Nepal ,&nbsp;Atta Ullah ,&nbsp;Wenlei Li ,&nbsp;Xianyong Cao","doi":"10.1016/j.revpalbo.2024.105206","DOIUrl":"10.1016/j.revpalbo.2024.105206","url":null,"abstract":"<div><p>Modern pollen distribution and its relationship to environmental variables in tropical to alpine vegetation zones are investigated to provide a reference for palaeoenvironmental reconstructions and to improve the understanding of pollen dispersal patterns in Central Nepal. A total of 100 samples (from soil and moss) were collected from along an elevational gradient ranging from 173 to 4615 m above sea level. Results show that the alpine zone is dominated by arboreal pollen (AP) and the sub-alpine zone also shows good representation of coniferous taxa pollen such as <em>Pinus</em>, <em>Abies</em>, <em>Tsuga</em>, and <em>Picea</em> along with Ericaceae. The temperate zone has a good representation of <em>Quercus</em> (Evergreen) and <em>Pinus</em> pollen, whereas the sub-tropical zone is characterized by <em>Alnus</em> pollen and agricultural taxa such as Cerealia (planted Poaceae) and Brassicaceae. In the tropical zone, non-arboreal pollen (NAP), mainly Cerealia dominate, reflecting intensive agricultural practices. <em>Shorea</em> is completely silent in pollen representation. A redundancy analysis indicates that elevation is the primary factor influencing pollen distribution in this region. Overall, the pollen data reflect the vegetation distribution but <em>Pinus</em> is over-represented and <em>Shorea</em> is unrepresented, which should be taken into consideration when interpreting fossil pollen in Central Nepal.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105206"},"PeriodicalIF":1.7,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Carboniferous spore genus Vestispora: New palynological insights from Gondwana","authors":"Haytham El Atfy ,&nbsp;Jiří Bek ,&nbsp;Atef M. Hosny ,&nbsp;Dieter Uhl","doi":"10.1016/j.revpalbo.2024.105207","DOIUrl":"10.1016/j.revpalbo.2024.105207","url":null,"abstract":"<div><p>Palynological studies from Europe and North America have repeatedly considered the Carboniferous miospore genus <em>Vestispora</em> a useful biostratigraphic indicator, resulting in a detailed review and discussion of its variable morphotypes. This was not the case in Gondwana, where <em>Vestispora</em> has rarely been reported. However, a few studies from India and South America used the absence of this taxon as an argument for a Permian age.</p><p>The present work introduces a well-preserved and diverse record of five species of <em>Vestispora</em> from the Pennsylvanian (Moscovian-Gzhelian) of the Dhiffah Formation, north Western Desert (NWD), Egypt. Moreover, a detailed review of previous records of <em>Vestispora</em> was introduced in a trial to understand its regional distribution in Gondwana. It turned out that <em>Vestispora</em> is restricted to the Tethyan realm or the vegetation belt stretching North of Gondwana. However, the genus seems to exhibit a wider stratigraphic range in the Tethyan realm of Gondwana than in the Euramerican Province, with the youngest occurrences up to the top of the Carboniferous.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105207"},"PeriodicalIF":1.7,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modern pollen assemblages in lake surface sediments and their relationships with vegetation, climate, and human activities in Yunnan, SW China","authors":"Jingfan He ,&nbsp;Chunhai Li ,&nbsp;Hongwei Meng ,&nbsp;Xiaocen Li ,&nbsp;Beibei Li ,&nbsp;Caiming Shen","doi":"10.1016/j.revpalbo.2024.105205","DOIUrl":"10.1016/j.revpalbo.2024.105205","url":null,"abstract":"<div><p>Modern pollen assemblages from moss polsters, topsoils, and lake surface sediments are crucial for interpreting palaeovegetational and palaeoclimatic conditions from fossil pollen records. While a large number of modern pollen assemblages exist from Yunnan Province, SW China, few are derived from lake surface sediments with depositional environments similar to those of fossil pollen records. In this study, we present modern pollen assemblages from lake surface sediments across 36 lakes in Yunnan, spanning spatially from the southeast to the northwest of the region. These lakes encompass a range of vegetation types, varying from alpine meadow grasslands to tropical seasonal and montane rainforests. Our findings demonstrate that modern pollen assemblages from lake surface sediments can effectively identify various vegetation zones. Redundancy analysis (RDA) reveals a strong correlation of pollen assemblages with climate factors (e.g., temperature and precipitation) but a weak correlation with human activities. This study suggests that modern pollen assemblages from lake surface sediments in Yunnan can be used not only to reflect changes in vegetation and climate, but also as reliable indicators for reconstructing the history of human activities to some extent.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105205"},"PeriodicalIF":1.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142271744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tracing 40,000 years of vegetation change in the Baetic-Rifan biodiversity hotspot","authors":"José S. Carrión ,&nbsp;Juan Ochando ,&nbsp;Fabrizio Michelangeli ,&nbsp;Francisco Jiménez-Espejo ,&nbsp;Fernando Ojeda ,&nbsp;Gabriela Amorós ,&nbsp;Manuel Munuera ,&nbsp;Ana B. Marín-Arroyo ,&nbsp;Penélope González-Sampériz ,&nbsp;Joaquín Rodríguez-Vidal ,&nbsp;Federico Di Rita ,&nbsp;Donatella Magri","doi":"10.1016/j.revpalbo.2024.105202","DOIUrl":"10.1016/j.revpalbo.2024.105202","url":null,"abstract":"<div><p>This study presents a 40,000-year-old pollen record from Los Tollos Lake in the Baetic-Rifan region of southernmost Spain. The data offer insights into the past ecosystems of a current biodiversity hotspot situated at the ecotone between the Atlantic and the Mediterranean. This new sequence encompasses Mediterranean and Ibero-North African sclerophylls, broad-leaf trees, conifers, and Tertiary relicts. The full-glacial abundance of mesothermophytes, particularly oaks, is among the highest recorded for the European Quaternary. Notably, the presence of ecologically significant pollen taxa, which are poorly dispersed and currently occur outside the study area, suggests that this biodiversity hotspot was more extensive in the Pleistocene. During the period of c. 40.8–36.5 ka, three <em>Artemisia</em> maxima at 40.6, 38.9, and 36.9 ka coincide with decreases in <em>Quercus</em>, indicating the spread of steppes in response to the abrupt coolings of the GS10, GS9 (HS4), and GS8 events. Similarly, increases in <em>Quercus</em> around 41, 40, and 37.2–38.3 ka parallel the GI10, GI9, and GI8 warm events. A forested period from 36.5–32 ka includes oak expansions during the GI7 and GI6 interstadials. From 32 to 19.2 ka, more xerophytic vegetation is observed, including the HS3, GS5-GS3, HS2, and GS2.1b-c cold spells, although the correlation with vegetation changes is not synchronous. As early as approximately 21 ka, <em>Artemisia</em> definitively declines, while the region was reforesting, likely due to the presence of stationary populations of broadleaf trees and conifers in the southern Baetic mountains. From approximately 12 ka onwards, the highest values of angiosperm trees are recorded, with oaks dominating throughout most of the Holocene. The pollen record and the correlation with marine records suggest a more intense hydrological regime during the first half of the Holocene, but there is also archaeobotanical evidence for human activity during the second half, resulting in a more open landscape, making it difficult to discriminate the impact of each factor. Some abrupt aridity events during the Holocene coincide with small variations in tree cover, particularly at 9.2, 8.2, 6.8, 5.5–4.8, 4.2, and 2.8 ka. Since the Neolithic and during the metallurgic stages, forest species, especially broad-leaf trees, experienced range retraction accompanied by population extinctions. The region's plant communities have been subject to fire regimes since the Pleistocene, seemingly dependent on the available tree biomass.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105202"},"PeriodicalIF":1.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0034666724001532/pdfft?md5=20e09883d493240a2cb6498af77a4abb&pid=1-s2.0-S0034666724001532-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The latest Carboniferous-earliest Permian palynological assemblage from the Sauce Grande Formation, Claromecó Basin, Argentina: Implications for the local palynostratigraphic scheme and correlations in Western Gondwana","authors":"J.E. Di Nardo ,&nbsp;M. di Pasquo ,&nbsp;M.A. Martínez","doi":"10.1016/j.revpalbo.2024.105203","DOIUrl":"10.1016/j.revpalbo.2024.105203","url":null,"abstract":"<div><p>The Sauce Grande Formation of the Ventania System and Claromecó Basin, east-central Argentina, is a geological unit of glaciomarine origin showing evidence of the glaciation that affected the supercontinent of Gondwana during the late Paleozoic. The age of this unit was previously determined from scarce and poorly preserved fossils, but mainly from radiometric dating and the fossil content of the overlying geological units. This study presents a palynological assemblage obtained from the Sauce Grande Formation in the PANG 0002 borehole, drilled in the Upper Paleozoic Claromecó Basin. Based on the identification of key species, such as <em>Converrucosisporites confluens</em>, <em>Pakhapites ovatus</em>, <em>P. fusus</em>, <em>Vittatina</em> spp., and <em>Weylandites magmus</em>, an age no older than Gzhelian is inferred for the interval studied. The inferred age allows us to relate the glaciomarine deposits of the Sauce Grande Formation to the last episode of the late Paleozoic Ice Age. The palynological assemblage of the Sauce Grande Formation is correlated with the <em>Converrucosisporites confluens</em>-<em>Vittatina vittifera</em> (CV) Biozone of the Claromecó Basin. Based on updated information and new correlations of the CV Biozone with palynostratigraphic schemes established in neighboring basins (Chacoparaná, Paraná, and central-western Argentina), its age is adjusted to the Gzhelian-late Artinskian interval, encompassing the Carboniferous-Permian boundary. This new information contributes to refining the current biostratigraphic scheme of the late Paleozoic Claromecó Basin.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105203"},"PeriodicalIF":1.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Albian south-western Europe terrestrial biogeography as suggested by fossil wood record","authors":"Marc Philippe ,&nbsp;Myette Guiomar ,&nbsp;Didier Bert ,&nbsp;Jacques-Léopold Brochier ,&nbsp;Matías Reolid ,&nbsp;Frédéric Thévenard","doi":"10.1016/j.revpalbo.2024.105189","DOIUrl":"10.1016/j.revpalbo.2024.105189","url":null,"abstract":"<div><p>After the ecological discontinuity of the Aptian/Albian boundary, new biocoenoses were established. In the continental domain, ecosystems in which angiosperms began to play a role appeared, and soon became the framework for the success of this group, with considerable consequences. However, little is known about the palaeobiogeography of this period. The study of new wood fossils from south-western Europe together with bibliographical data shows that continental biogeography was compartmentalised there, with a strong north–south gradient. A weaker east–west gradient is also suggested.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105189"},"PeriodicalIF":1.7,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142271742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The palaeobotanical heritage of Ukraine and its endangered status following the Russian military invasion","authors":"Olena A. Shevchuk ,&nbsp;Nataliya Boyarina ,&nbsp;Oleg Sukhov ,&nbsp;Oleksandr I. Shevchuk ,&nbsp;Vivi Vajda ,&nbsp;Stephen McLoughlin","doi":"10.1016/j.revpalbo.2024.105201","DOIUrl":"10.1016/j.revpalbo.2024.105201","url":null,"abstract":"<div><p>Ukraine has a rich Proterozoic to Quaternary fossil record of photosynthetic microbes and plants. Particularly rich and scientifically important fossils of early multicellular organisms have been documented from the Ediacaran, early land plants from the Silurian–Devonian, coal-forming floras from the Carboniferous, typical post-extinction recovery vegetation and coal swamp forests from the Triassic and Jurassic, and well-preserved angiosperms and conifers from the Cretaceous and Cenozoic. These fossil floras help elucidate the temporal changes in the vegetation at the junction of Europe, Asia and the Tethyan microcontinental terranes and highlight biogeographic linkages between various floral provinces through deep time. The rich and variably preserved floras offer great scope for further taxonomic, palaeoecological, palaeoclimatic and biogeographic research. Extensive fossil collections are stored in several major institutional repositories scattered across Ukraine. Some of these institutions have now been occupied by Russian forces, and others have been damaged and remain under threat, risking potential loss for future research. The impact of the war on Ukrainian museums and scientific collections has implications for how fossil specimens are stored and what procedures are enacted to preserve collections in other parts of the world in the event of war, civil disturbance, or natural disasters.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105201"},"PeriodicalIF":1.7,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0034666724001520/pdfft?md5=f04453c8d239c874e1bc7c36bf4fe5fe&pid=1-s2.0-S0034666724001520-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New findings of the Ginkgoales in the Middle Jurassic of the East European platform","authors":"Natalya Nosova","doi":"10.1016/j.revpalbo.2024.105200","DOIUrl":"10.1016/j.revpalbo.2024.105200","url":null,"abstract":"<div><p>Representatives of ginkgoaleans from the Middle Jurassic of the Stoilensky opencast mine in the Belgorod Region and the Mikhailovsky opencast mine in the Kursk Region, European Russia are described for the first time. Remains of ginkgoaceous affinity dominate in some samples and are represented by leaf fragments of <em>Sphenobaiera angrenica</em> (Samylina) Nosova, originally described from the Middle Jurassic Angren Formation in Uzbekistan where they are associated with female reproductive structures (collar complexes) of <em>Nagrenia samylinae</em> Nosova. Rare fragments of the collars were also found in the Stoilensky mine. These remains are assigned to <em>Nagrenia</em> sp. As well as in the Angren Formation, seeds of <em>Allicospermum budantsevii</em> Gordenko are recorded in the Stoilensky mine.</p></div>","PeriodicalId":54488,"journal":{"name":"Review of Palaeobotany and Palynology","volume":"331 ","pages":"Article 105200"},"PeriodicalIF":1.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142172586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}