Quaternary Science Reviews最新文献

{"title":"Early intensive millet-pig agriculture in the high-elevation Tibetan Plateau","authors":"Jishuai Yang ,&nbsp;Linying Wang ,&nbsp;Tinley Tsring ,&nbsp;Ting Li ,&nbsp;Shungang Chen ,&nbsp;Yunzhe Huang ,&nbsp;Qi Yang ,&nbsp;Qing Wang ,&nbsp;Ting You ,&nbsp;Yaofei Tian ,&nbsp;Shargan Wangdue ,&nbsp;Tashi Tsring ,&nbsp;Zujun Chen ,&nbsp;Songtao Chen ,&nbsp;Nihanxue Jia ,&nbsp;Guilian Sheng ,&nbsp;Yu Gao ,&nbsp;Xiaoyan Yang","doi":"10.1016/j.quascirev.2024.109048","DOIUrl":"10.1016/j.quascirev.2024.109048","url":null,"abstract":"<div><div>Over 5500 years ago, a sustainable and intensive millet-pig system emerged in northern China. This system, which included common millet (<em>Panicum miliaceum</em>), foxtail millet (<em>Setaria italica</em>), and domestic pig (<em>Sus scrofa domesticus</em>), played a crucial role in supporting the development of complex societies. Around 5000 years ago, the spread of these two millets to the Tibetan Plateau facilitated agriculturalization in the high-elevation river valley areas of the plateau (&gt;2500 m above sea level). Previous studies tended to suggest that there were no domesticated pigs at the early settlements in high-elevation river valleys of the Tibetan Plateau, where subsistence strategies primarily relied on hunting wild animals and millet cultivation. Here, we report the earliest known domestic pigs identified through ancient DNA (aDNA) analysis of pig bones excavated from these high-elevation sites, dating back to approximately 4800–4100 years ago. Additionally, we conducted stable isotope analysis on pig and wild herbivore bone remains, as well as crop remains from the La Phob site. The <em>δ</em>¹³C and <em>δ</em>¹⁵N values provide clear evidence of intensive millet-pig agriculture, with pigs primarily consuming both common and foxtail millets, and their manure used for field fertilization. Our study demonstrates that by 4800 years ago, not only domestic pig and the two millets but also an intensive millet-pig system had spread to the high-elevation Tibetan Plateau, contributing to the early sedentary lifestyle of humans in these regions.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109048"},"PeriodicalIF":3.2,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573566","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":"Physio-mechanical properties of loess-paleosol sequences over the past 400 ka and their paleoclimate controlling factors on the central Loess Plateau","authors":"Xiaoning Wang,&nbsp;Dapeng Yue,&nbsp;Jingbo Zhao,&nbsp;Lixing Zhang,&nbsp;Rong Liu,&nbsp;Jianing Li,&nbsp;Yueshan Liu","doi":"10.1016/j.quascirev.2024.109047","DOIUrl":"10.1016/j.quascirev.2024.109047","url":null,"abstract":"<div><div>Exploring the relationship between the physio-mechanical properties of the loess-paleosol sequences and the paleoclimate can help provide essential references for engineering construction in the Chinese Loess Plateau, revealing the vital application value of Quaternary climate research. Continuous loess-paleosol sequence in the central Loess Plateau was selected to determine its physio-mechanical and chemical characteristics. The main results show: (1) During the interglacial period, the East Asian summer monsoon intensified, and the cementation of clay minerals made the soil structure dense under more precipitation, increasing soil cohesion. During the glacial period, the East Asian winter monsoon was stronger, and the loess's unstable microstructure was formed under the weak pedogenesis, increasing the compressibility and collapsibility. (2) The alternation of cold-dry/warm-humid climate in the Quaternary is the fundamental reason for the differences in physio-mechanical properties and structural strength between loess and paleosol; pedogenesis plays a direct decisive role. The impact of compaction after burial on the physio-mechanical properties of loess-paleosol sequences is less than that of pedogenesis. (3) Precipitation plays a dominant role in the shear strength and compressibility of loess-paleosol sequences, while precipitation and temperature jointly affect the collapsibility. A quantitative relationship between paleoclimate and physio-mechanical properties was established.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109047"},"PeriodicalIF":3.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573564","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":"A rapid dispersal of maize from the Great Plains to northeastern North America","authors":"John P. Hart","doi":"10.1016/j.quascirev.2024.109049","DOIUrl":"10.1016/j.quascirev.2024.109049","url":null,"abstract":"<div><div>Northern Flint maize (<em>Zea mays</em> ssp. <em>mays</em>) is a distinct landrace that was common throughout early historical northeastern North America. It is likely represented archaeologically as Eastern 8-row maize, the dominant form there after 1200 CE. Genetic analyses indicate that Northern Flint is most likely derived from maize in the American Southwest. Evidence for maize in the form of phytoliths and starch recovered from directly radiocarbon dated cooking residues occurs in the Northeast by 290 BCE. Until recently there has been no substantiated evidence for maize of similar or older age in the Great Plains, through which maize is likely to have dispersed from the Southwest. A recent report of early microbotanical evidence for maize from the central Plains allows Bayesian modeling of radiocarbon dates to estimate the amount of time that elapsed before maize spread from the Plains to the Northeast. Results indicate only a short amount of time elapsed, from a few to less than 170 years.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109049"},"PeriodicalIF":3.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573561","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":"Paleohydrology and human driven paleoproductivity during the Late Holocene from Schliersee, Bavaria","authors":"Maximilian Prochnow ,&nbsp;Katharina Dulias ,&nbsp;Paul Strobel ,&nbsp;Marcel Bliedtner ,&nbsp;Gerhard Daut ,&nbsp;Sönke Szidat ,&nbsp;Gary Salazar ,&nbsp;Franziska Lechleitner ,&nbsp;Sudip Acharya ,&nbsp;Rodrigo Martínez-Abarca ,&nbsp;Anja Schwarz ,&nbsp;Antje Schwalb ,&nbsp;Roland Zech","doi":"10.1016/j.quascirev.2024.109012","DOIUrl":"10.1016/j.quascirev.2024.109012","url":null,"abstract":"<div><div>Understanding Holocene hydroclimatic variability in the European Alps is challenging due to spatial and temporal disparities between the northern and southern Alps. In addition, interpreting lake sediment records in terms of paleohydrology is complicated by human presence during Roman and Medieval settlements, which increased soil erosion and lake eutrophication. Here, we present a ∼4440-year long sediment record from Schliersee, Bavaria, where we applied compound-specific δ²H on leaf waxes, geochemical and diatom analyses to reconstruct hydrology and lake productivity. The terrestrial δ²H_{<em>n</em>-C31} records the isotopic composition of precipitation and is similar to leaf wax δ²H from Lake Ghirla, southern Alps, and δ¹⁸O from Spannagel cave in Austria. This provides evidence that, on millennial time scales, changes in moisture sources associated with shifts in the position of the Westerlies are one potential explanation regarding the isotope signals across the region. However, doubts remain whether the North Atlantic Oscillation as a winter signal can explain variations in summer-sensitive biomarker δ²H records. The aquatic δ²H_{<em>n</em>-C25} records the isotopic composition of lake water and its isotopic offset to δ²H_{<em>n</em>-C31} (Δ_aq–terr) is applied as a proxy for lake evaporation. We find increased evaporation during the Medieval Climate Anomaly in line with a drought reported from tree-ring studies, whereas lower evaporation prevailed during the Little Ice Age, likely due to solar forcing. Lake productivity was higher during the Roman period and Middle Ages, concomitant with land use resulting in higher nutrient inputs into the lake. The intensified use of industrial fertilizers and the drainage of untreated wastewater after the Second World War caused eutrophication during the 1950s. Despite its paleoclimatic significance, this study emphasizes that multi-proxy approaches combining assemblages of geochemical and biological proxies allow robust reconstructions of climate–landscape interactions and human impact.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109012"},"PeriodicalIF":3.2,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554709","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":"Holocene summer temperature reconstruction from plant sedaDNA and chironomids from the northern boreal forest","authors":"Roseanna J. Mayfield ,&nbsp;Dilli P. Rijal ,&nbsp;Peter D. Heintzman ,&nbsp;Peter G. Langdon ,&nbsp;Dirk N. Karger ,&nbsp;Antony G. Brown ,&nbsp;Inger G. Alsos","doi":"10.1016/j.quascirev.2024.109045","DOIUrl":"10.1016/j.quascirev.2024.109045","url":null,"abstract":"<div><div>Climate-induced ecotonal shifts are expected to occur in the (sub)arctic and boreal zones in the coming decades. Understanding how these ecosystems have previously responded to climate change can provide greater insight into how ecosystems may develop under existing and future pressures. Here we present a Holocene record from Lake Horntjernet, a lake on the northern edge of the boreal forest in Northern Norway. We show vegetation development and landscape dynamics typical for Northern Fennoscandia during the Holocene. A plant <em>sed</em>aDNA record indicates rapid vegetation development following deglaciation with early arrival of <em>Betula</em> trees/shrubs. Pine forest was established by c. 8500 cal yr BP, and subsequent mid- to late Holocene vegetation assemblages are relatively stable. The aquatic ecosystem community is indicative of climatic change during the early Holocene, while strong coupling with changes in the catchment vegetation affects the water quality during the mid- and late Holocene. The chironomid record indicates lake water acidification following the establishment of pine forest and heathland. Different approaches for temperature reconstruction are calculated and the results are compared to better understand ecosystem-climate relationships and ecosystem resilience to climate change. Chironomid-inferred temperatures indicate early Holocene warming and late Holocene cooling, comparable to independent regional temperature trends. However, lake acidification impedes reliable reconstruction of chironomid-inferred temperatures in the mid-Holocene, a trend recognised in other boreal chironomid records. The application of <em>sed</em>aDNA plant-inferred summer temperature reconstruction is inhibited by the persistence of cold and warm tolerant species within the boreal pine forest. However, a trait-based approach reconstructed temperature trends that aligned with independent regional data. Thus, here we demonstrate the value of combined molecular and fossil-based proxies for elucidating the complex response of a boreal catchment to climate change.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109045"},"PeriodicalIF":3.2,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554718","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":"“Society of the den”: Identifying patterns of denning behaviour in Upper Pleistocene hyena populations","authors":"Israel Jesus Jimenez ,&nbsp;César Laplana ,&nbsp;María Isabel García-Real ,&nbsp;Enrique Baquedano ,&nbsp;Juan Luis Arsuaga ,&nbsp;Nuria Garcia","doi":"10.1016/j.quascirev.2024.109004","DOIUrl":"10.1016/j.quascirev.2024.109004","url":null,"abstract":"<div><div>In this study, we examine patterns for identifying spotted hyena dens in the fossil record through mortality profiles and discuss their ethological significance as a tool for understanding how this taxon occupied cavities in the past. We analysed the age structure of the spotted hyena from the Upper Pleistocene site of Cueva del Camino (Pinilla del Valle, Madrid) and compared it with other sites as well as with a modern hyena population. We interpret the mortality profile obtained at Cueva del Camino as indicative of a spotted hyena den, specifically a communal den, due to the scarcity of neonates and the high percentage of juveniles in the communal denning period. In the comparative analysis, we found a pattern in spotted hyena mortality profiles that can help classify denning behaviour in the fossil record: the composition of communal denning populations should comprise more than seventy percent juveniles, and the proportion of adults should be lower than that of older adults. Furthermore, for the first time, we can also statistically discriminate between den and non-den occupations. However, one of the main issues that arise with statistics is that when the sample size is low, confidence is reduced, which can lead to misinterpretations of the type of occupation. As an alternative approach, we followed the method of Discamps and Costamagno to adapt the ternary diagram demarcation to the spotted hyena, based on species-specific age class boundaries. Based on this method, we propose that: (I) the JOP zone could be associated with sites used as communal dens by hyenas, (II) the JPO zone could be designated for sites where a clan, including cubs, used the cave for living, and (III) the O and P zones could be related to sporadic occupations by hyenas.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109004"},"PeriodicalIF":3.2,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554758","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":"Stable isotope of Mesolithic remains of Pila wernei of the Nile area, Sudan: A tool for palaeoenvironment reconstruction","authors":"Paola Iacumin ,&nbsp;Antonella Macrì ,&nbsp;Mattia Rossi ,&nbsp;Donatella Usai ,&nbsp;Fabio Marzaioli ,&nbsp;Sofia Ramigni ,&nbsp;Giampiero Venturelli","doi":"10.1016/j.quascirev.2024.109029","DOIUrl":"10.1016/j.quascirev.2024.109029","url":null,"abstract":"<div><div>The article deals with stable isotopes of oxygen and carbon on current and archaeological semi-aquatic gastropod shell of the <em>Pila wernei</em> from Sudan and reports some new ¹⁴C analyses on archaeological <em>Pila</em> specimens. This, with the aim of obtaining new information on climatic and environmental changes in the al-Khiday area during the first phase of Holocene. The <em>Pila</em> shells come from a well-preserved shell midden present at al-Khiday and dated 8700-7000 cal yr BP. The area of al-Khiday was inhabited since at least 10 ka. <em>Pila wernei</em> species has never been studied in detail; this study demonstrates that the O and C isotope composition of aragonite shell is able to record the environmental and diet changes during the gastropod life. The comparison between the isotope data obtained on present-day and archaeological shells show a prevalence of C4 plants and higher rainfall during the Mesolithic. Two climatic fluctuations have been recognised: the first one indicating wetter conditions from 8650-8400 to 8500-8050 cal yr BP (decrease of the δ¹⁸O values), the second one pointing less wetter conditions from 8500-8050 to 7850-7600 cal yr BP (increase of δ¹⁸O values). Despite the difficulties in studying semi-aquatic gastropods due to their lifestyle habit, the identification of climatic fluctuations in the Early Holocene confirms the reliability of this proxy for climatic reconstructions. Despite the high number of isotopic analyses (1556) used in this work, they were not sufficient to mirror the fast climate changes characterising the studied period and finally obtain a detailed reconstruction for nearly the two millennia considered. Nonetheless, future projects may benefit greatly from unveiling the shell-environment relationship of the species.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109029"},"PeriodicalIF":3.2,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539659","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":"Late Pleistocene glacial chronology and paleoclimate of the Cadí Massif, SE Pyrenees, Spain: Insights from 36Cl cosmogenic surface exposure dating and glacier modelling","authors":"Attila Çiner ,&nbsp;Marc Oliva ,&nbsp;Josep Ventura ,&nbsp;M. Akif Sarıkaya ,&nbsp;Adem Candaş ,&nbsp;David Palacios ,&nbsp;Onur Altınay ,&nbsp;Steven A. Binnie ,&nbsp;Natalia Castaneda","doi":"10.1016/j.quascirev.2024.109020","DOIUrl":"10.1016/j.quascirev.2024.109020","url":null,"abstract":"<div><div>The cold and dry Younger Dryas (YD) stadial (<em>ca.</em> 12.9 to 11.7 ka) generated glacial deposits in the Iberian Mountains, often restricted to high altitudes in cirque areas. Contrary to expectations, we encountered well-developed YD moraines at relatively low altitudes on the northern slopes of the Cadí Massif in the Southeastern Pyrenees, Spain. We applied the ³⁶Cl terrestrial cosmogenic nuclides (TCN) surface exposure dating method on 11 limestone boulders collected from three moraines to assess the glacial geochronology and paleoclimate conditions associated with their formation. We report a small but well-preserved moraine at an unusually high altitude for the Southeastern Pyrenees (between 2160 m and 2120 m above sea level; asl) fed by a small hanging glacier that formed at 23.0 ± 1.5 ka during the global Last Glacial Maximum (LGM). Four kilometres west of the LGM moraine, a <em>ca.</em> 2.5 km long glacier originating from one of the largest cirques of the Cadí Massif deposited a <em>ca.</em> 700 m long moraine preserved between 1760 m and 1600 m. As alluvial and periglacial processes heavily modified this moraine, we cautiously attribute its age to 12.9 ± 1.0 ka. This age represents the onset of the YD period following the Bølling-Allerød warming, widespread in the Pyrenees. On the other hand, another <em>ca.</em> 1.7 km long glacier sourced from the adjacent cirques deposited a pair of well-preserved lateral moraines and a terminal moraine <em>ca.</em> 1150 m long. The samples collected from the moraines yielded tightly clustered boulder ages (average age = 12.1 ± 1.1 ka). Although they developed at relatively low elevations (1830–2100 m) with an Equilibrium Line Altitude (ELA) of 2175 m, which is exceptional for the Southeastern Pyrenees, these moraines were formed during the YD stadial. Our study suggests that despite increased glacier retreat in the Mediterranean region, local relief is crucial in preserving ice masses far below the modern glacial belt with ample snow accumulation. We also used the Parallel Ice Sheet Model (PISM) to reconstruct the paleo-ice extents and paleoclimate regime. We propose two equally possible best-fit scenarios for the maximum ice extent of the YD period. The first foresees a 4 °C temperature decline with today's precipitation values, and the second predicts a 5 °C cooling if precipitation were 20% lower than today. Identifying and dating this unexpected YD glaciation on Cadí Massif provides new insights into understanding the Iberian Peninsula's paleoclimate.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109020"},"PeriodicalIF":3.2,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539660","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":"Precipitation seasonality in controlling the north‒south dipolar pattern of effective moisture variations on the eastern margin of the Tibetan Plateau during the Holocene","authors":"Duo Wu ,&nbsp;Qili Xiao ,&nbsp;Shilong Guo ,&nbsp;Jinghua Huang ,&nbsp;Shuai Shao ,&nbsp;Tao Wang ,&nbsp;Xuemei Chen ,&nbsp;Jiawu Zhang ,&nbsp;Aifeng Zhou ,&nbsp;Fahu Chen","doi":"10.1016/j.quascirev.2024.109030","DOIUrl":"10.1016/j.quascirev.2024.109030","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Holocene climate change between different geographic units of the Asian continent exhibits spatiotemporal heterogeneity under the control of different atmospheric circulation systems. Precipitation/moisture variations between the northeastern and southeastern Tibetan Plateau show an out-of-phase pattern on decadal, centennial, and millennial time scales during the Holocene, influenced by interactions between the summer monsoon system and the westerlies. However, conflicting proxies exist in some regions on millennial time scale, and it is vital to detect and evaluate the detailed processes responsible for such a dipolar pattern. Here, we select and summarize well-dated Holocene records of pollen-based vegetation, oxygen isotope composition (δ&lt;sup&gt;18&lt;/sup&gt;O) of authigenic carbonates and cellulose, hydrogen isotope composition (δD) of long-chain &lt;em&gt;n&lt;/em&gt;-alkanes from leaf wax, and chronology of aeolian activity and soil development from various geological archives, including lake sediments, peat bogs, aeolian deposits, cave speleothems, and tree rings from the eastern margin of the Tibetan Plateau. We find a long-term decreasing trend in summer monsoon precipitation across the eastern Tibetan Plateau during the Holocene, indicated by declining arboreal pollen percentages, enhanced values of δ&lt;sup&gt;18&lt;/sup&gt;O from lakes in the southeastern Tibetan Plateau (SETP), speleothems, and tree-ring cellulose, as well as enhanced δD values across the entire eastern margin of the plateau. A summary of the chronology of aeolian sand and paleosol on the northeastern Tibetan Plateau (NETP) reveals enhanced aeolian activity during the early Holocene and increased soil development from the middle Holocene onwards. These data, combined with those indicating increased lake levels and decreased lake-water δ&lt;sup&gt;18&lt;/sup&gt;O values in the region, suggest that the effective moisture on the NETP increased throughout the Holocene. Our findings indicate that increased non-monsoon-season precipitation with the strengthening intensity of the westerlies, against a background of possible decreasing summer evaporation, provided increased moisture to the NETP, ultimately resulting in a Holocene dipolar pattern of humidity variations between the northern and southern parts of the eastern margin of the Tibetan Plateau. The inference that the seasonality of precipitation controlled moisture variation in the study region is supported by high-resolution climate proxies and meteorological data on centennial and decadal time scales during the last millennium. Additionally, we propose a conceptual framework of hydroclimatic processes in a land–lake system to reconcile contradictions between different indicators. The present study not only clearly summarizes the Holocene climate change on the eastern margin of the Tibetan Plateau, but it also highlights the critical importance of distinguishing terrestrial and lacustrine signals in paleolimnological studies, and of noting associat","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109030"},"PeriodicalIF":3.2,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539658","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":"Chironomid-inferred summer temperature during the Last Glacial Maximum in the Southern Black Forest, Central Europe","authors":"Pierre Lapellegerie ,&nbsp;Laurent Millet ,&nbsp;Damien Rius ,&nbsp;Fanny Duprat-Oualid ,&nbsp;Tomi Luoto ,&nbsp;Oliver Heiri","doi":"10.1016/j.quascirev.2024.109016","DOIUrl":"10.1016/j.quascirev.2024.109016","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The location of Bergsee (382 m a.s.l.), between the Black Forest and northern Alpine glaciers during their maximum extent of the Würm glaciation, makes the sediment record of this lake a unique palaeoenvironmental archive that probably recorded the entire Last Glacial Period. Here we present a chironomid record from Bergsee covering ca. 35 thousands of years (kyr) including the period corresponding to the Last Glacial Maximum in the northern Alpine area. The record is divided into 6 biostratigraphical zones. Between ca. 45.4–30.1 thousand calibrated &lt;sup&gt;14&lt;/sup&gt;C years (cal ka BP) taxa typical for the littoral of relatively warm lakes (&lt;em&gt;Parakiefferiella bathophila&lt;/em&gt;-type and &lt;em&gt;Paratanytarsus penicillatus&lt;/em&gt;-type) are dominating. Then (ca. 30.1–23.3 cal ka BP), &lt;em&gt;Sergentia coracina&lt;/em&gt;-type, a profundal and cold indicative taxon, becomes dominant alongside &lt;em&gt;Parakiefferiella bathophila&lt;/em&gt;-type. Low diversity and high abundances of &lt;em&gt;Sergentia coracina&lt;/em&gt;-type suggest the most severe environmental conditions of the record. The third zone (ca. 23.3–20.6 cal ka BP) is largely dominated by &lt;em&gt;Parakiefferiella bathophila&lt;/em&gt;-type and warmer indicative taxa replace &lt;em&gt;Sergentia coracina&lt;/em&gt;-type. In the fourth zone (ca. 20.6–16.9 cal ka BP), &lt;em&gt;Paratanytarsus penicillatus&lt;/em&gt;-type and &lt;em&gt;Tanytarsus pallidicornis&lt;/em&gt;-type dominate and the presence of &lt;em&gt;Chironomus anthracinus&lt;/em&gt;-type suggests slightly warmer conditions, more nutrients or organic matter and lower oxygen availability in the lake. In the next zone (ca. 16.9–10.7 cal ka BP), &lt;em&gt;Corynocera ambigua&lt;/em&gt;, a taxon with uncertain distribution in respect to temperature, becomes the dominant chironomid. Changing abundances of &lt;em&gt;Corynocera ambigua&lt;/em&gt; match the climate variability of the Lateglacial, with high abundances corresponding to the cold phases of the Oldest and Younger Dryas interrupted by the warmer Bølling/Allerød interstadial. However, the high abundances of &lt;em&gt;Corynocera ambigua&lt;/em&gt; are not necessarily due to colder temperature but could also be explained by changes in the trophic conditions in the lake or other environmental changes. The last zone (ca. 10.7–8.4 cal ka BP, onset of the Holocene), shows the highest diversity and presence of warm indicative taxa such as &lt;em&gt;Endochironomus tendens&lt;/em&gt;-type and &lt;em&gt;Polypedilum nubeculosum&lt;/em&gt;-type. The high abundances of &lt;em&gt;Corynocera ambigua&lt;/em&gt; make the temperature reconstruction challenging for the Lateglacial since this taxon is restricted to cold lakes in some European chironomid-temperature calibration datasets, whereas it is known that it can also be found in high abundances in warmer lakes in other calibration datasets. A chironomid-temperature transfer function based on a Swiss-Norwegian calibration dataset reconstructed exceptionally cold values in the interval with maximum abundances of &lt;em&gt;Corynocera ambigua&lt;/em&gt;, which disagree with reconstructions from other palaeoenvironme","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"345 ","pages":"Article 109016"},"PeriodicalIF":3.2,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528040","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}