Quaternary Science Reviews最新文献

{"title":"Chironomid assemblages in surface sediments from 182 lakes across New England and Eastern Canada: Development and validation of a new summer temperature transfer function","authors":"Thomas Suranyi , Julie Talbot , Donna Francis , Augustin Feussom Tcheumeleu , Pierre Grondin , Damien Rius , Adam A. Ali , Yves Bergeron , Laurent Millet","doi":"10.1016/j.quascirev.2025.109333","DOIUrl":"10.1016/j.quascirev.2025.109333","url":null,"abstract":"","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109333"},"PeriodicalIF":3.2,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Mineral dust as a forcing factor behind primary productivity in the northwestern Arabian Sea since the Last Glacial Maximum","authors":"Alice Karsenti ,&nbsp;Charlotte Skonieczny ,&nbsp;Stéphanie Duchamp-Alphonse ,&nbsp;Xinquan Zhou ,&nbsp;Maxime Leblanc ,&nbsp;Julius Nouet ,&nbsp;Amélie Plautre ,&nbsp;Kara Labidi ,&nbsp;Annachiara Bartolini ,&nbsp;Eva Moreno ,&nbsp;Catherine Kissel ,&nbsp;Franck Bassinot","doi":"10.1016/j.quascirev.2025.109328","DOIUrl":"10.1016/j.quascirev.2025.109328","url":null,"abstract":"<div><div>Located in the northwestern part of the Indian Ocean, the Arabian Sea (AS) is under the influence of Indian monsoon surface winds that create a coastal upwelling off Somalia and Oman during summer and a convective mixing north of 15°N during winter. It is also surrounded by vast arid regions regularly swept by regional winds, namely the <em>Shamal</em> and the <em>Levar</em>, that supply mineral dust to the sea surface. Coastal upwelling, convective mixing and mineral dust bring significant amount of nutrients to the euphotic zone, making the AS one of the most productive oceanic regions in the world. Since the Last Glacial Maximum (LGM), many studies attribute changes in western AS primary productivity (PP) to variations in coastal upwelling and summer monsoon dynamics. However, it has been recently demonstrated that convective mixing was a significant contributor in the northwestern part of the AS, while mineral dust may have also played a role. No high-resolution mineral dust records are available in the literature, nor are any linked to reconstructed PP signals, limiting our understanding of the relationship between mineral dust and PP in this region since the LGM. In this study, we provide sub-millennial scale records of detrital fraction grain-size distribution and clay mineralogy composition of sediment core MD00-2354 (21°02.55′N, 61°28.51′E, 2740 mbsl), located in the northwestern AS, and that benefits from a centennial PP signal previously obtained based on a micropaleontological approach (Zhou et al., 2022). Together with high-resolution geochemical X-ray fluorescence (XRF) data from the studied site as well as geochemical data from literature, these records enable us to reconstruct changes in regional wind dynamics and link them to PP patterns since the LGM. During the LGM and the near-glacial Henrich Stadial 1 (HS1; 17–14.7 ka) and Younger Dryas (YD; 12.9–11.7 ka), stronger <em>Levar</em> and <em>Shamal</em> together with stronger aridity in the source areas associated to more extended ice sheet in the Northern Hemisphere, weaker Atlantic Meridional Overturning Circulation (AMOC), and stronger winter monsoon, seem to be responsible for the higher dust inputs and PP signals recorded in the northwestern AS. During the Holocene and the mild interstadial Bølling-Allerød (B-A; 14.7–12.9 ka), weaker regional winds together with stronger humidity in the source area due to reduced ice sheet extension, stronger AMOC, and stronger summer monsoon, seem to diminish mineral dust inputs and hence lower PP. In such scenarios, convective mixing and mineral dust appear to be the main nutrient sources for PP in the northwestern AS, questioning the influence of the coastal upwelling system in that area.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109328"},"PeriodicalIF":3.2,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strong earthquake in a low seismicity area of the European Southern Alps during Roman Times – A lacustrine paleoseismic evaluation","authors":"Markus Niederstätter ,&nbsp;Katleen Wils ,&nbsp;Arne Ramisch ,&nbsp;Jean Nicolas Haas ,&nbsp;Hannah Pomella ,&nbsp;Sönke Szidat ,&nbsp;Michael Strasser ,&nbsp;Jasper Moernaut","doi":"10.1016/j.quascirev.2025.109341","DOIUrl":"10.1016/j.quascirev.2025.109341","url":null,"abstract":"<div><div>Hazard assessment of moderate to strong earthquakes (moment magnitude, M_W &gt; 5.5) in slowly deforming regions, such as the European Southern Alps, is hindered by recurrence intervals that exceed the timeframe covered by historical records and a lack of paleoseismic data revealing earthquake source parameters. Estimations of the maximum possible magnitude (M_max) in a region are often solely based on theoretical models and lack validation by long paleoseismic records. A rare example of a potential M_max event is formed by a coseismic surface rupture impacting a Roman age building in Egna/Neumarkt (South Tyrol, Italy) which occurred during the 3rd century CE, as proposed by an archaeoseismological study. Our study tests this hypothesis by examining the sedimentary record of Kleiner Montiggler See/Piccolo Lago di Monticolo, a lake located only 10 km from the Egna site, for evidence of seismic shaking. A multiproxy analysis of sediment cores allowed us to disentangle different depositional processes and to identify an event layer, which we interpret to be caused by a seismic seiche. Using a radiocarbon-based age-depth model, the event was dated to ∼222 years CE (8–450 years CE, 95 % probability range), coinciding with the identified fault offset, and therefore supporting the hypothesis of a Roman Age surface rupturing earthquake in Egna. We constrain the minimum local intensity of this earthquake by considering the sedimentary characteristics of the event layer in Kleiner Montiggler See, the post-seismic response of the lake system, and the absence of lacustrine sedimentary evidence for other strong historical earthquakes in the broader region. We evaluate different potential magnitude scenarios for the Egna earthquake by using ground motion modelling and comparing the results with paleoseismic records from nearby lakes. This allows us to infer that an M_W of 6.5 is the most likely scenario for this event, which is consistent and slightly below the M_max estimates for the study area. This empirical evidence for a strong earthquake close to the considered M_max within its tectonic domain highlights the potential hazard posed by unrecognized seismogenic structures in regions with apparent low seismic activity. This emphasizes the need for long paleoseismic records in such regions to refine hazard assessment of strong earthquakes.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109341"},"PeriodicalIF":3.2,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Flood and earthquake records over the past 2000 years revealed by varved lake sediments from Lake Xinluhai, southeastern Tibetan Plateau","authors":"Zhicong Huang ,&nbsp;Jingxuan Yang ,&nbsp;Xin Mao ,&nbsp;Xingqi Liu","doi":"10.1016/j.quascirev.2025.109349","DOIUrl":"10.1016/j.quascirev.2025.109349","url":null,"abstract":"<div><div>The southeastern margin of the Tibetan Plateau experiences frequent natural disasters, yet long-term records are scarce for risk assessment. We established a 2000-year varve chronology from Lake Xinluhai using a 1150 cm sediment core, combining varve counting and AMS ¹⁴C dating. A multi-proxy analysis, including grain-size, total organic carbon (TOC), charcoal and pollen concentrations, and μ-XRF surface scanning of elemental composition in laminae and turbidite layers, revealed two distinct types of turbidites: (1) Flood-induced turbidites, which exhibit graded bedding with coarse sand at the base transitioning upward to fine silt, capped by a clay-rich layer. At the turbidite base, these layers show a sharp increase in <em>D</em>_<em>50</em>, <em>D</em>_<em>90</em>, TOC, charcoal, and pollen concentrations, along with the poorest sorting. Upward, these parameters decrease, while sorting improves, reflecting a systematic hydrodynamic sorting process. (2) Earthquake-triggered turbidite contains mixed bedrock fragments and clay, with erratic grain-sizes, poor sorting, and slightly elevated TOC, but without notable changes in charcoal or pollen assemblages relative to background sediments. Our findings indicate that ten turbidites were deposited by extreme rainfall-induced floods (recurrence interval: 73–279 years; last event: 1796–1806 CE), while one turbidite was triggered by a slope collapse associated with a <em>Ms</em> ≥ 6.0 earthquake on the Manigange segment of the Ganzi-Yushu Fault during 842–867 CE. Given that over 200 years have passed since the last flood, the probability of future flooding is high. This study provides a scientific basis for long-term natural hazard assessment in the southeastern Tibetan Plateau.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"358 ","pages":"Article 109349"},"PeriodicalIF":3.2,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 first NW European stratigraphic record containing an entire interglacial-glacial cycle of periglacial alluvial fan response to (sub)orbital climate fluctuations","authors":"Willem Viveen ,&nbsp;Jeroen M. Schoorl ,&nbsp;Ronald T. van Balen ,&nbsp;Nik Trabucho ,&nbsp;Freek S. Busschers","doi":"10.1016/j.quascirev.2025.109315","DOIUrl":"10.1016/j.quascirev.2025.109315","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Periglacial alluvial fans are common in northwestern and central Europe and their pre-Holocene stratigraphic records typically date back to late Middle Pleniglacial and Late Pleniglacial (late MIS3 and 2). Preserved stratigraphic records that include an entire interglacial-glacial cycle have, so far, not been described and it is thus unknown how periglacial alluvial fans responded during a full cycle of interglacial-glacial climate changes. In this paper, we reconstruct the evolution of the Eerbeek periglacial alluvial fan in the Netherlands which was deposited during the late Saalian (MIS 6) to late Weichselian (MIS 2) period, including the entire last interglacial–glacial cycle (MIS 5-2). Our reconstruction is based on 48, up-to 45-m deep borehole and Cone Penetration Test (CPT) logs that allowed the construction of an 8-km long longitudinal and a 7-km long transverse cross section over the Eerbeek periglacial alluvial fan. Age control was provided by means of 17, previously published, Optically Stimulated Luminescence ages of two boreholes on the fan, and 14 &lt;sup&gt;14&lt;/sup&gt;C ages from three boreholes and a nearby, now abandoned, quarry.&lt;/div&gt;&lt;div&gt;Overlying a thick, late Saalian (MIS 6) alluvial fan record, is a 4- to 18-m thick alternation of distinct organic (mainly peat and humic clays), siliciclastic alluvial fan (coarse- and medium-grained sands), Rhine (coarse- and medium grained sands), and aeolian (mainly medium-grained sands) stratigraphic units. Organic levels indicate fan stability during the Eemian interglacial (MIS 5e), and Brørup (MIS 5c), Odderade–Ognon interstadial complex (MIS 5a), and Middle Pleniglacial (MIS 3) interstadials 14, 13, 12 and 11 as well as late MIS 2 interstadial 1a. Clastic sediments indicate alluvial fan activity during the Herning (MIS 5d), Rederstall (MIS 5b), Ognon stadial complex (late MIS 5a), Early Pleniglacial (MIS 4) and upper Middle Pleniglacial (upper MIS 3) stadials 13, 12 and 11. Sediments from the coldest and driest period of the Last Glacial (late MIS 3 and MIS 2) are absent and following a phase of aeolian activity, the fan was only reactivated at the MIS 2 to MIS 1 transition (stadial 1). We attribute the absence of fan activity during the coldest period of the last interglacial-glacial cycle to the eastward orientation of the fan making it less sensitive to permafrost melt.&lt;/div&gt;&lt;div&gt;The colder MIS substages and stadials in which the Eerbeek fan was active coincided with the presence of permafrost and/or a seasonal, deeply frozen soil, and a relatively humid climate during which vegetation was largely absent. The presence of channels that dissect the underlying organic units suggests that the Eerbeek fan initially responded to the changes from interstadials to stadials by means of erosion. As climate cooled and permafrost/deep frost developed, the fan switched to alluvial aggradation. The consistent presence of coarsening-fining upward sequences suggests a relation with cycles of incre","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109315"},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 crucial role of vegetation cover in shaping the dipole pattern of East Asian summer monsoon changes during the late Pliocene warm period","authors":"Ruoxiao Gu ,&nbsp;Xiangyu Li ,&nbsp;Bo Liu ,&nbsp;Hua Li ,&nbsp;Zhongshi Zhang ,&nbsp;Yong Liu","doi":"10.1016/j.quascirev.2025.109317","DOIUrl":"10.1016/j.quascirev.2025.109317","url":null,"abstract":"<div><div>The late Pliocene warm period is the most recent geological warm period with atmospheric CO₂ concentrations similar to today's (∼405 ppm) but higher than the modern reference pre-industrial period (280 ppm), featured distinct vegetation cover. Both CO₂ concentrations and vegetation cover influence global and regional climate, but their relative roles in the East Asian summer monsoon (EASM) are not well understood. In this study, we assess the impacts of vegetation change and CO₂ enhancement on the EASM during the late Pliocene through sensitivity experiments. Compared to the pre-industrial period, the EASM intensified with a meridional dipole pattern in summer precipitation change over East China during the late Pliocene. Changes in vegetation cover played a major role in shaping the dipole pattern of EASM variation, while elevated CO₂ alone played a minor role. The late Pliocene vegetation caused a dipole pattern in surface albedo changes, increasing at 50–65°N and decreasing at 30–50°N, thereby altering the regional thermal structure across the Asian continent. As a result, tropospheric warming was more pronounced at mid-latitudes, primarily driven by albedo feedback. The vegetation-induced adjustment of thermal structure over East Asia enhanced the summer monsoon and increased northward water vapor transport through diabatic heating modification. This process likely contributed to the dipole pattern of summer precipitation over East Asia, influenced by the secondary circulation due to the poleward shift of the westerlies. Our experiments highlight the crucial role of vegetation in EASM variation pattern during the late Pliocene and underscore the importance of the vegetation feedback in a future warming world.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109317"},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"sedaDNA and pollen disclose treeline advancing and plant diversity trajectory under recent climate warming in southwestern Hengduan Mountains, China","authors":"Kai Li ,&nbsp;Yang Yang ,&nbsp;Shaolin Shi ,&nbsp;Mengna Liao ,&nbsp;Jian Ni ,&nbsp;Lingyang Kong ,&nbsp;Enlou Zhang","doi":"10.1016/j.quascirev.2025.109348","DOIUrl":"10.1016/j.quascirev.2025.109348","url":null,"abstract":"<div><div>The ongoing climate warming has been casting unprecedented impacts on alpine ecosystems within the Hengduan Mountain (HDM), a globally renowned biodiversity hotspot. However, current knowledge of how alpine vegetation and plant diversity are responding to recent climate warming remains inadequate. Here, we conducted pollen and sedimentary ancient DNA (sedaDNA) analyses on a short sediment core from Tiancai Lake, located in the southwestern HDM, to explore the vegetation and plant diversity changes over the past four centuries. The results manifested that the regional vegetation composition has undergone obvious changes during this period. Specifically, the ratio of broad-leaved to coniferous taxa (B/C), as well as palynological richness and diversity, exhibited significant correlations with the increasing mean annual temperature, implying that alpine species in the southwestern HDM have been subjecting to recent climate warming trends. The sedaDNA results further illustrated watershed-scale vegetation turnover, characterized mainly by the replacement of <em>Rhododendron</em> scrub by <em>Abies</em> forest and the upward migration of the alpine ecotone. The establishment of alpine coniferous forest around Tiancai Lake occurred about 1880 C.E. Additionally, the trajectories of plant diversity on watershed scale were highly resembled the mean annual temperature variations during post-industrial warming, indicating that the plant diversity around Tiancai Lake should be highly sensitive to and controlled by climate changes. Concurrently, warming-induced alpine habitat degradation may be imperiling plant diversity in the Tiancai Lake region, despite the upward trend in palynological diversity observed in the southwestern HDM.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109348"},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bones and teeth isotopes as archives for palaeoclimatic, palaeoenvironmental and palaeoecological data","authors":"Rhiannon E. Stevens ,&nbsp;Sarah Pederzani ,&nbsp;Kate Britton ,&nbsp;Sarah K. Wexler","doi":"10.1016/j.quascirev.2025.109320","DOIUrl":"10.1016/j.quascirev.2025.109320","url":null,"abstract":"<div><div>This review paper explores the contribution of the stable isotope analysis of mammalian bones and teeth to the study of palaeoclimate, palaeoenvironment, and palaeoecology. These skeletal remains, composed of both organic and inorganic materials, preserve isotopic signals that reflect an organism's dietary habits and other behaviours, as well as environmental, and climatic conditions during an animal's lifetime. Here, we discuss how carbon, nitrogen, sulfur, oxygen, hydrogen, strontium, and zinc isotopes in bones and teeth have been used to reconstruct past changes in temperature, precipitation, aridity, permafrost, vegetation, seasonality, and animal diet and mobility. We identify areas where understanding is limited and suggest avenues for future research. Additionally, we highlight how information from different isotopes and tissues can be integrated with archaeological findings to assess the impact of environmental shifts on animal behaviour and ecosystems, offering a deeper understanding of human-animal interactions throughout (pre)history. Ultimately, stable isotopes in bones and teeth serve as more than just palaeo-proxies; they offer insights into human and non-anthropogenic impacts on ecosystems, and help establish baselines for contemporary conservation, ecosystem restoration and rewilding policies and practices.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109320"},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Scales of toolstone transport in the Armenian Highlands during MIS 3: The contribution of Ararat-1 Cave (Ararat Depression) to reconstructing opportunities for social interactions","authors":"Ellery Frahm ,&nbsp;David Nora ,&nbsp;Boris Gasparyan ,&nbsp;Artur Petrosyan ,&nbsp;Ariel Malinsky-Buller","doi":"10.1016/j.quascirev.2025.109324","DOIUrl":"10.1016/j.quascirev.2025.109324","url":null,"abstract":"<div><div>Marine Isotope Stage (MIS) 3, ranging from around 57,000 to 29,000 years ago, is a period of significant archaeological interest due to notable transitions in lithic technology and hominin populations. In Europe, this time saw the replacement of Middle Palaeolithic (MP) technologies associated with Neanderthals by Upper Palaeolithic (UP) technologies linked to anatomically modern humans (AMHs). This technological shift is conventionally attributed to a demographic turnover; however, the timing of this transition varied regionally. The presence of Neanderthals and AMHs in the Levant, western Europe, and elsewhere over extended periods complicates the narrative, suggesting asynchronous and regionally diverse associations of hominin species and lithic technologies. This study shifts the attention to potential technological and cultural transmissions among MP- and UP-making groups, emphasizing the roles of social and exchange networks. Recent data from the obsidian-rich Armenian Highlands enable us to consider the mobility and land use of these groups without the added complication of toolstone with different knapping qualities, so patterns more clearly reflect mobility patterns, land use strategies, and potential social connections of foraging groups. These results suggest that, while MP-making groups in MIS 3 had overlapping territories, the UP-making groups at Aghitu-3 had smaller movements on the landscape. In contrast, MIS 2 sites with UP lithic assemblages have resource territories that apparently overlapped much like those of the MIS 3 MP sites. The findings hint at the possibility that differing mobility and land use during MIS 3 might have contributed to the coexistence of distinct lithic technologies, potentially through social transmission rather than a direct replacement of hominin populations.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109324"},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vegetation change and grazing activities since the middle Holocene in the Zoige Basin, eastern Tibetan Plateau, China","authors":"Yuanqi Pan ,&nbsp;Xiaochun Zha,&nbsp;Chunchang Huang,&nbsp;Jiangli Pang,&nbsp;Yali Zhou,&nbsp;Na Wang,&nbsp;Yuxin Zhao","doi":"10.1016/j.quascirev.2025.109330","DOIUrl":"10.1016/j.quascirev.2025.109330","url":null,"abstract":"<div><div>Large herbivores of grazing activities are the most important production factor to maintain the permanent settlement of human beings in the high-altitude area of the Tibetan Plateau, China, and their population changes are the products of the interaction between climate change and human activities since the Holocene. Using pollen and fungal spore fossil records from a profile since mid-Holocene in the Zoige Basin, the history and controlling factors of vegetation change and grazing activities were revealed. The results showed that the history of vegetation change and grazing activities in the Zoige Basin could be divided into three stages: (ⅰ) During the period of 8.5–5.8 ka, alpine meadow dominated by Cyperaceae developed in the Zoige Basin with the highest tree pollen content and the best hydrothermal conditions. The low concentration of coprophilous fungal spore at this stage was probably related to wild herbivores. (ⅱ) During the period of 5.8–3.6 ka, the alpine meadow dominated by Cyperaceae developed further, the tree pollen content decreased slightly, and the climate began to change to drought, but the overall climate was still warm and humid. At this stage, coprophilous fungal spores occurred continuously and their concentration gradually increased, suggesting that there were human activities in the basin and grazing activities began at about 5.8ka. (ⅲ) During about 3.6–0 ka, the vegetation type changed to the desert steppe dominated by Chenopodiaceae and Asteraceae, and after 0.5 ka, the alpine meadow redeveloped. The pollen content of trees decreased significantly, and the climate was mainly cool and dry. Grazing activities, as represented by the concentration of coprophilous fungi spores, began to increase gradually after about 3.6 ka. There was a reverse correlation between grazing activities and the dry and cool climate in this stage. The dry and cool climate was one of the key factors to promote the development of grazing in the Zoige Basin. The research results further complement the evolution of human activities and environmental background in the eastern Tibetan Plateau, and have certain reference significance for understanding the impact of climate change on human survival strategies in the plateau environment.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"357 ","pages":"Article 109330"},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}