Late glacial and Holocene vegetation, Indian monsoon and westerly circulation in the Trans-Himalaya recorded in the lacustrine pollen sequence from Tso Kar, Ladakh, NW India

Demske, Dieter; Tarasov, Pavel E.; Wünnemann, Bernd; Riedel, Frank

doi:10.1016/j.palaeo.2009.05.008

Cited by 191 publications

(136 citation statements)

References 47 publications

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“…with pollen percentages higher than 5%, is shown in Figure 3 Sutra et al (1996) show that Artemisia was a tracer for dry conditions during the last glacial in Nilgiri hills basin, SW India, covered at present by mountainous evergreen grasslands (Bonnefille et al, 1999;Gupta and Prasad, 1985). In contrast, in the North-Western part of the Indian peninsula, characterized by winter moisture in dry environments weakly affected by the summer monsoon, Artemisia is a marker of the influence of both summer and winter Indian monsoons (Demske et al, 2009;Van Campo et al, 1996). In both cases this genus is favored by dry conditions, and considering the relatively low percentage of grasslands during the MIS 5/4 transition (around the same proportion like during the moist Holocene period), Artemisia expansion could reflect the increase of winter moisture contrasting with the severe annual dryness observed during the HS 2.…”

Section: Vegetation and Indian Monsoon Variability During The Holocenementioning

confidence: 92%

Indian monsoon variations during three contrasting climatic periods: The Holocene, Heinrich Stadial 2 and the last interglacial–glacial transition

Zorzi

Goñi

Anupama

et al. 2015

Quaternary Science Reviews

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Section: Vegetation and Indian Monsoon Variability During The Holocenementioning

confidence: 92%

Indian monsoon variations during three contrasting climatic periods: The Holocene, Heinrich Stadial 2 and the last interglacial–glacial transition

Zorzi

Goñi

Anupama

et al. 2015

Quaternary Science Reviews

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“…The core was sub-sampled at 1 cm contiguous intervals and stored at 4 • C prior to analysis. The chronology is based on accelerator mass spectrometry (AMS) 14 C dates from terrestrial plant macrofossils ex- (Shakun et al, 2007); 2, Qunf Cave (Fleitmann et al, 2003); 3, Hoti Cave ; 4, Lonar Lake (Prasad et al, 2014;Sarkar et al, 2015); 5, Core SO188-342KL (Contreras-Rosales et al, 2014); 6, Tso Kar (Demske et al, 2009); 7, Tianmen Cave 8, Paru Co (Bird et al, 2014); 9, Gonghe Basin (Liu et al, 2013); 10, Gulang profile (Sun et al, 2012); 11, Jingyuan profile (Sun et al, 2012); 12, Naleng Lake (Kramer et al, 2010); 13, Tiancai Lake (Xiao et al, 2014b); 14, Xingyun Lake (Chen et al, 2014); 15, Huguangyan Lake (Jia et al, 2015;Wang et al, 2012); 16, Core MD05-2904 ; 17, Core MD01-2390 (Steinke et al, 2010). (b) Expanded view of the study area.…”

Section: Sediment Sampling and Datingmentioning

confidence: 99%

“…Increased sclerophyllous Quercus, Tsuga and decreased Betula suggest an expansion of Tsuga forest, accompanied by the retreat of Betula forest and a slight expansion of Carpinus forest. The summers were relatively dry ; (f) synthesized Holocene effective moisture index from the ISM region (Wang et al, 2010); (g) annual precipitation reconstructed from pollen assemblages from Xingyun Lake in southwestern China (Chen et al, 2014); (h) record of lithic flux at Paru Co in the southern QTP (Bird et al, 2014); (i) Artemisia to Chenopodiaceae (A / C) ratio from Tso Kar in the western QTP (Demske et al, 2009); (j) montane forest pollen percentage record from Naleng Lake in the southeastern QTP (Kramer et al, 2010). and the winters were warmer, compared to the preceding interval.…”

Section: Holocene Vegetation and Climate Evolutionmentioning

confidence: 99%

“…A pollen record from Tso Kar in northwestern India indicates a rapid increase in summer monsoon precipitation from 10.8 to 9.2 cal ka BP, a moderate reduction in precipitation between 9.2 and 6.8 cal ka BP, and a second precipitation pulse from 6.9 and 4.8 cal ka BP (Fig. 6i, Demske et al, 2009). Similarly, the record from Lake Naleng in the southeastern QTP indicates relatively stable, warm and humid conditions from 10.7 to 4.4 cal ka BP, except for the interval between 8.1 and 7.2 cal ka BP (Fig.…”

Section: Structure Of the Holocene Climatic Optimummentioning

confidence: 99%

“…During the last two decades, the variability of the Indian summer monsoon (ISM) in the Holocene has been reconstructed from various types of paleoclimatic archive and proxies, such as stalagmite oxygen isotope (δ 18 O) records Fleitmann et al, 2003, marine sediments (Contreras-Rosales et al, 2014;Gupta et al, 2003;Rashid et al, 2007), and lake and peatland sediments (Bird et al, 2014;Chen et al, 2014;Cook et al, 2013;Demske et al, 2009;Fuchs and Buerkert, 2008;Jarvis, 1993;Kramer et al, 2010;Prasad et al, 2014;Sarkar et al, 2015;C. Shen et al, 2006;J.…”

Section: Introductionmentioning

confidence: 99%

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Holocene Asian monsoon evolution revealed by a pollen record from an alpine lake on the southeastern margin of the Qinghai–Tibetan Plateau, China

et al. 2016

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Abstract. We present the results of pollen analyses from a 1105 cm long sediment core from Wuxu Lake in southwestern China, which depict the variations of the East Asian winter monsoon (EAWM) and the Indian summer monsoon (ISM) during the last 12.3 ka. During the period of 12.3 to 11.3 cal ka BP, the dominance of Betula forest and open alpine shrub and meadow around Wuxu Lake indicates a climate with relatively cold winters and dry summers, corresponding to the Younger Dryas event. Between 11.3 and 10.4 cal ka BP, further expansion of Betula forest and the retreat of alpine shrubs and meadows reflect a greater seasonality with cold winters and gradually increasing summer precipitation. From 10.4 to 4.9 cal ka BP, the dense forest understory, together with the gradual decrease in Betula forest and increase in Tsuga forest, suggest that the winters became warmer and summer precipitation was at a maximum, corresponding to the Holocene climatic optimum. Between 4.9 and 2.6 cal ka BP, Tsuga forest and alpine shrubs and meadows expanded significantly, reflecting relatively warm winters and decreased summer precipitation. Since 2.6 cal ka BP, reforestation around Wuxu Lake indicates a renewed humid period in the late Holocene; however, the vegetation in the catchment may also have been affected by grazing activity during this period. The results of our study are generally consistent with previous findings; however, the timing and duration of the Holocene climatic optimum from different records are inconsistent, reflecting real contrast in local rainfall response to the ISM. Overall, the EAWM is broadly inphase with the ISM on the orbital timescale, and both monsoons exhibit a trend of decreasing strength from the early to late Holocene, reflecting the interplay of solar insolation receipt between the winter and summer seasons and El Niño-Southern Oscillation strength in the tropical Pacific.

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Paleoenvironment change and its impact on carbon and nitrogen accumulation in the Zoige wetland, northeastern Qinghai‐Tibetan Plateau over the past 14,000 years

Zeng

Zhu

Song

et al. 2017

Geochem Geophys Geosyst

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As the largest alpine wetland and peat deposition area in China, the Zoige wetland is climatically sensitive. The organic matter (OM) in peat stores copious environmental information. Here we report new data on the organic geochemistry of a 4.5 m peat profile HY2014 from southern Zoige wetland. Based on closely spaced accelerator mass spectrometry (AMS) 14C dating, we established a high‐resolution geochronological framework beginning at 14,057 a BP. Moreover, we estimated the sedimentation flux of TOC and TN (SFs) and their influencing factors. Before 10,916 a BP, the lake shrunk and peat began to develop under cold and dry conditions, and SFs were at their lowest values due to low productivity. More OM originated from hydrophyte and marsh plants. From 10,916 to 3050 a BP, peat was widely and well developed, and the climate was warm and humid, despite a cooling and drying trend. The HY2014 profile experienced an optimum climate during 10,916 − 6000 a BP, when SFs had the highest values that benefited from high productivity, and OM mainly originated from terrestrial plants. After 3050 a BP, the climate was the coldest and driest. The high SFs over the past 2000 a BP were mainly resulted from the low decomposition rate. The plant community, primary productivity, and decomposition rate were closely linked with the temporal variation of SFs. The environment change was mainly controlled by summer solar insolation, and the Zoige wetland was significantly influenced by the Indian summer monsoon.

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Late glacial and Holocene vegetation, Indian monsoon and westerly circulation in the Trans-Himalaya recorded in the lacustrine pollen sequence from Tso Kar, Ladakh, NW India

Cited by 191 publications

References 47 publications

Indian monsoon variations during three contrasting climatic periods: The Holocene, Heinrich Stadial 2 and the last interglacial–glacial transition

Indian monsoon variations during three contrasting climatic periods: The Holocene, Heinrich Stadial 2 and the last interglacial–glacial transition

Holocene Asian monsoon evolution revealed by a pollen record from an alpine lake on the southeastern margin of the Qinghai–Tibetan Plateau, China

Paleoenvironment change and its impact on carbon and nitrogen accumulation in the Zoige wetland, northeastern Qinghai‐Tibetan Plateau over the past 14,000 years

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