Mid-late Holocene environmental changes recorded by fluvio-lacustrine and aeolian sediments in the eastern sandy land of Qinghai Lake

doi:10.7522/j.issn.1000-694X.2021.00092

Journal of Desert Research ›› 2021, Vol. 41 ›› Issue (6): 99-110.DOI: 10.7522/j.issn.1000-694X.2021.00092

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Mid-late Holocene environmental changes recorded by fluvio-lacustrine and aeolian sediments in the eastern sandy land of Qinghai Lake

Dongxue Chen¹(), Ruijie Lu¹(), Zhiyong Ding¹, Xiaokang Liu²

^1.MOE Engineering Reaearch Center of Desertification and Blown-Sand Control / State Key Laboratory of Earth Surface Processes and Resource Ecology，Faculty of Geographical Science，Beijing Normal University，Beijing 100875，China
^2.School of Geography and Tourism，Shaanxi Normal University，Xi’an 710119，China

Received:2021-05-10 Revised:2021-07-07 Online:2021-11-20 Published:2021-12-17
Contact: Ruijie Lu

Abstract

Abstract:

The numerous deposits in the eastern sandy land of Qinghai Lake recorded wealthy information of regional paleoclimate and paleoenvironmental since the Holocene. However， controversy still remains in regional climate and environmental changes on the millennial-scale. In this study， we explored aeolian deposits from the Sandaotan （SDT） and Dashuitangzuoan （DSTK） profiles in the eastern Qinghai Lake. Eight conventional radiocarbon dates were utilized to construct chronological frameworks. Furthermore， a multi-index analysis method of lithology， particle size， and major chemical element oxides with their ratios was conducted to reconstruct the environmental evolution process in study area over the past 8.4 ka BP. The results reveal that most of the sediments are at the physical weathering and primary chemical weathering stages except for a small number of sediments reach medium chemical weathering stage， which indicates that the climatic environment in the study area has been getting drier since 8.4 ka BP. Whereas evidence from the analysis of each index suggest that there are significant differences of climatic environment in different periods on the millennial-scale. Compared with other periods， the climate was warmer and more humid during 8.4-4.2 ka BP. Among that the aeolian sand interlayer appeared in the lacustrine sediments， indicating obvious centennial-scale climatic fluctuations during 8.4-6.2 ka BP； the great chemical weathering and leaching condition occurred from 6.2 to 4.2 ka BP， indicating relatively warm and humid climate conditions and the stable lacustrine sediment. After 4.2 ka BP， gravel accumulated in sandy loess deposit， and finally weakly paleosol deposit. Moreover， the comparative analysis shows that the climate change characteristics of the eastern sandy land in Qinghai Lake are consistent with other regions in the East Asian monsoon marginal region. Highlight the climate change dominate the evolution process of the regional sedimentary environment since the mid-late Holocene.

Key words: the eastern sandy land of Qinghai Lake, mid-late Holocene, elemental geochemistry, paleoclimate, fluvio-lacustrine and aeolian deposit

CLC Number:

P534.63

Dongxue Chen, Ruijie Lu, Zhiyong Ding, Xiaokang Liu. Mid-late Holocene environmental changes recorded by fluvio-lacustrine and aeolian sediments in the eastern sandy land of Qinghai Lake[J]. Journal of Desert Research, 2021, 41(6): 99-110.

Figures/Tables 10

References 37

1	An Z S，Colman S M，Zhou W J，et al.Interplay between the Westerlies and Asian monsoon recorded in Lake Qinghai sediments since 32 ka［J］.Scientific Reports，2012，2（8）：619.
2	Henderson A C G，Holmes J A.Palaeolimnological evidence for environmental change over the past millennium from Lake Qinghai sediments：a review and future research prospective［J］.Quaternary International，2009，194（1/2）：134-147.
3	Liu X Q，Shen J，Wang S M，et al.A 16000-year pollen record of Qinghai Lake and its paleoclimate and paleoenvironment［J］.Chinese Science Bulletin，2002，47（22）：1931-1936.
4	Shen J，Liu X Q，Wang S M，et al.Palaeoclimatic changes in the Qinghai Lake area during the last 18，000 years［J］.Quaternary International，2005，136（1）：131-140.
5	陈发虎，汪世兰，张维信，等.青海湖南岸全新世黄土剖面、气候信息及湖面升降探讨［J］.地理科学，1991，11（1）：76-85.
6	Lu R J，Jia F F，Gao S Y，et al.Holocene aeolian activity and climatic change in Qinghai Lake basin，northeastern Qinghai-Tibetan Plateau［J］.Palaeogeography，Palaeoclimatology，Palaeoecology，2015，430：1-10.
7	Chen F H，Wu D，Chen J H，et al.Holocene moisture and East Asian summer monsoon evolution in the northeastern Tibetan Plateau recorded by Lake Qinghai and its environs：a review of conflicting proxies［J］.Quaternary Science Reviews，2016，154：111-129.
8	徐叔鹰，徐德馥.青海湖东岸的风沙堆积［J］.中国沙漠，1983，3（3）：11-17.
9	Liu X J，Cong L，An F Y，et al.Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene，Northeastern Qinghai-Tibetan Plateau［J］.Environmental Earth Sciences，2019，78（1）：1-12.
10	Hu G Y，Dong Z B，Zhang Z C，et al.Wind regime and aeolian landforms on the eastern shore of Qinghai Lake，northeastern Tibetan Plateau，China［J］.Journal of Arid Environments，2021，188：1-13.
11	E C Y，Zhang J，Chen Z Y，et al.High resolution OSL dating of aeolian activity at Qinghai Lake，Northeast Tibetan Plateau［J］.Catena，2019，183：1-11.
12	丁之勇，鲁瑞洁，刘畅，等.环青海湖地区气候变化特征及其季风环流因素［J］.地球科学进展，2018，33（3）：281-292.
13	朱秀莲.海晏县沙化现状调查及治理对策［J］.青海草业，2009，18（2）：40-42.
14	Reimer P J，Bard E，Bayliss A，et al.IntCal13 and MARINE13 radiocarbon age calibration curves 0-50，000 years cal BP［J］.Radiocarbon，2013，55（4）：1869-1887.
15	靳鹤龄，李明启，苏志珠，等.220 ka BP来萨拉乌苏河流域地质剖面地球化学特征及其对全球气候变化的响应［J］.冰川冻土，2005，27（6）：861-868.
16	苏志珠，吴宇婧，梁爱民，等.常量元素记录的毛乌素沙地东南缘全新世气候变化［J］.中国沙漠，2018，38（3）：516-523.
17	陈骏，季峻峰，仇纲，等.陕西洛川黄土化学风化程度的地球化学研究［J］.中国科学D辑，1997，27（6）：531-536.
18	Nesbit H W，Young G M.Early Proterozoic climates and plate motions inferred from major element chemistry of Intites［J］.Nature，1982，299（1982）：715-717.
19	于英鹏，汪海斌，刘现彬.末次间冰期以来沙漠边缘黄土沉积的地球化学特征初探［J］.沉积学报，2012，30（02）：356-365.
20	Mclennan S M.Weathering and global denudation［J］.Journal of Geology，1993，101（2）：295-303.
21	靳鹤龄，苏志珠，孙忠.浑善达克沙地全新世中晚期地层化学元素特征及其气候变化［J］.中国沙漠，2003，23（4）：365-371.
22	杜晨，张兵，张世涛，等.浅谈湖泊沉积环境演变中元素地球化学的应用及原理［J］.地质与资源，2012，21（5）：487-492.
23	Yao Z Q，Xiao G Q，Liang M Y.Global cooling controls on the chemical weathering as evidenced from the Plio-Pleistocene deposits of the North China Plain［J］.Chinese Science Bulletin，2009，55（9）：787-790.
24	吉云平，杨振京，赵华，等.河北阳原盆地井儿洼剖面常量元素地球化学特征揭示的中更新世晚期以来气候变化［J］.古地理学报，2016，18（3）：487-496.
25	李想，苏志珠，韩瑞，等.风成沉积地层化学元素记录的毛乌素沙地气候变化［J］.冰川冻土，2019，41（3）：563-573.
26	Fedo C M，Nesbitt H W，Young G M.Unraveling the effects of potassium metasomatism in sedimentary-rocks and paleosols，with implications for paleoweathering conditions and provenance［J］.Geology，1995，23（10）：921-924.
27	Taylor S R，McLennan S M.The continental crust：its composition and evolution［J］.The Journal of Geology，1985，94（4）：57-72.
28	Lu H Y，Zhao C F，Mason J，et al.Holocene climatic changes revealed by aeolian deposits from the Qinghai Lake area （northeastern Qinghai-Tibetan Plateau） and possible forcing mechanisms［J］.The Holocene，2010，21（2）：297-304.
29	白敏，鲁瑞洁，丁之勇，等.青海湖湖东沙地粒度端元分析及其指示意义［J］.第四纪研究，2020，40（5）：1203-1215.
30	杜婧，鲁瑞洁，刘小槺，等.青海湖湖东沙地全新世风成沉积物磁化率特征及其环境意义［J］.海洋地质与第四纪地质，2018，38（2）：175-184.
31	吕志强，鲁瑞洁，刘小槺，等.青海湖湖东沙地沉积记录的全新世以来风沙活动变化［J］.干旱区地理，2018，41（3）：536-544.
32	Lai Z P，Kaiser K，Brückner H.Luminescence-dated aeolian deposits of late Quaternary age in the southern Tibetan Plateau and their implications for landscape history［J］.Quaternary Research，2017，72（3）：421-430.
33	Ji J，Shen J，Balsam W，et al.Asian monsoon oscillations in the northeastern Qinghai-Tibet Plateau since the late glacial as interpreted from visible reflectance of Qinghai Lake sediments［J］.Earth and Planetary Science Letters，2005，233（1/2）：61-70.
34	Duan Y W，Sun Q，Werne J P，et al.Mid-Holocene moisture maximum revealed by pH changes derived from branched tetraethers in loess deposits of the northeastern Tibetan Plateau［J］.Palaeogeography，Palaeoclimatology，Palaeoecology，2019，520：138-149.
35	Hou J Z，Huang Y S，Zhao J T，et al.Large Holocene summer temperature oscillations and impact on the peopling of the northeastern Tibetan Plateau［J］.Geophysical Research Letters，2016，43（3）：1323-1330.
36	Li J Y，Dodson J，Yan H，et al.Quantitative precipitation estimates for the northeastern Qinghai-Tibetan Plateau over the last 18，000 years［J］.Journal of Geophysical Research-Atmospheres，2017，122（10）：5132-5143.
37	Wang W，Feng Z D.Holocene moisture evolution across the Mongolian Plateau and its surrounding areas：a synthesis of climatic records［J］.Earth-Science Reviews，2013，122：38-57.

实验室编号	样品号	深度/cm	测年材料	δ¹³C/‰	¹⁴C/a BP	校正年龄/cal a BP
449511	SDT-14C-03	117—119	有机质	-23.9	3620±30	3958±107
449514	SDT-14C-12	272—274	植物残体	-23.0	4410±30	5040±170
449515	SDT-14C-17	296—298	植物残体	-24.8	4570±30	5258±177
449516	SDT-14C-20	323—325	有机质	-23.8	5470±30	6260±45
449517	SDT-14C-21	242—244	植物残体	-22.6	3830±30	4243±142
451588	SDT-14C-21	242—244	有机质	-25.1	3830±30	4243±142
422372	DSTK-14C-01	41	有机质	-23.2	4400±30	5038±172
422373	DSTK-14C-02	87	有机质	-22.2	5970±30	6810±75
422374	DSTK-14C-06	160	有机质	-22.7	7570±30	8380±30

实验室编号	样品号	深度/cm	测年材料	δ¹³C/‰	¹⁴C/a BP	校正年龄/cal a BP
449511	SDT-14C-03	117—119	有机质	-23.9	3620±30	3958±107
449514	SDT-14C-12	272—274	植物残体	-23.0	4410±30	5040±170
449515	SDT-14C-17	296—298	植物残体	-24.8	4570±30	5258±177
449516	SDT-14C-20	323—325	有机质	-23.8	5470±30	6260±45
449517	SDT-14C-21	242—244	植物残体	-22.6	3830±30	4243±142
451588	SDT-14C-21	242—244	有机质	-25.1	3830±30	4243±142
422372	DSTK-14C-01	41	有机质	-23.2	4400±30	5038±172
422373	DSTK-14C-02	87	有机质	-22.2	5970±30	6810±75
422374	DSTK-14C-06	160	有机质	-22.7	7570±30	8380±30

粒级
地层		黏土<2 μm	粉砂2—63 μm	极细砂63—125 μm	细砂125—250 μm	中砂250—500 μm	粗砂500—1 000 μm	极粗砂1 000—3 000 μm
SDT1	最大值	1.45	19.24	24.25	50.20	20.12	5.53	2.59
	最小值	0.02	9.74	20.30	40.44	14.08	0.00	0.00
	平均值	1.04	13.69	22.49	46.12	15.96	0.48	0.21
SDT2	最大值	3.33	30.51	24.36	47.36	18.62	2.01	0.95
	最小值	0.70	13.20	18.72	32.86	1.18	0.00	0.00
	平均值	1.95	20.58	20.79	41.17	15.40	0.09	0.02
SDT4	最大值	7.49	58.93	29.73	44.66	20.56	3.80	2.90
	最小值	0.91	14.96	14.47	11.03	2.62	0.00	0.00
	平均值	3.15	28.20	22.85	34.73	10.71	0.22	0.15
SDT5	最大值	7.66	64.13	34.36	49.28	19.06	2.10	0.00
	最小值	0.69	8.67	10.64	12.22	1.74	0.00	0.00
	平均值	3.23	34.74	24.32	29.96	7.64	0.11	0.00
SDT6	最大值	4.22	38.66	34.10	55.77	22.11	0.00	0.00
	最小值	0.10	7.90	14.01	30.29	6.40	0.00	0.00
	平均值	1.16	15.49	23.90	45.06	14.40	0.00	0.00
全剖面	最大值	7.67	64.13	34.36	55.77	22.11	5.53	2.90
	最小值	0.02	7.90	10.64	11.03	1.74	0.00	0.00
	平均值	2.02	21.76	22.40	40.20	13.45	0.13	0.05

粒级
地层		黏土<2 μm	粉砂2—63 μm	极细砂63—125 μm	细砂125—250 μm	中砂250—500 μm	粗砂500—1 000 μm	极粗砂1 000—3 000 μm
SDT1	最大值	1.45	19.24	24.25	50.20	20.12	5.53	2.59
	最小值	0.02	9.74	20.30	40.44	14.08	0.00	0.00
	平均值	1.04	13.69	22.49	46.12	15.96	0.48	0.21
SDT2	最大值	3.33	30.51	24.36	47.36	18.62	2.01	0.95
	最小值	0.70	13.20	18.72	32.86	1.18	0.00	0.00
	平均值	1.95	20.58	20.79	41.17	15.40	0.09	0.02
SDT4	最大值	7.49	58.93	29.73	44.66	20.56	3.80	2.90
	最小值	0.91	14.96	14.47	11.03	2.62	0.00	0.00
	平均值	3.15	28.20	22.85	34.73	10.71	0.22	0.15
SDT5	最大值	7.66	64.13	34.36	49.28	19.06	2.10	0.00
	最小值	0.69	8.67	10.64	12.22	1.74	0.00	0.00
	平均值	3.23	34.74	24.32	29.96	7.64	0.11	0.00
SDT6	最大值	4.22	38.66	34.10	55.77	22.11	0.00	0.00
	最小值	0.10	7.90	14.01	30.29	6.40	0.00	0.00
	平均值	1.16	15.49	23.90	45.06	14.40	0.00	0.00
全剖面	最大值	7.67	64.13	34.36	55.77	22.11	5.53	2.90
	最小值	0.02	7.90	10.64	11.03	1.74	0.00	0.00
	平均值	2.02	21.76	22.40	40.20	13.45	0.13	0.05

[1]	Fangming Zeng, Hongpan Xue. Elemental compositions of the late Quaternary loess-paleosol on the northeastern Qinghai-Tibet Plateau and their implications for provenance [J]. Journal of Desert Research, 2020, 40(6): 105-117.
[2]	Li Tengfei, Li Jinfeng, Lu Ruijie, Liu Xiaokang, Chen Lu. Extraction of Grain-size Components with Environmentally Sensitivity of Aeolian Sediments in Eastern Shore of Qinghai Lake and Their Palaeoclimatic Implications [J]. JOURNAL OF DESERT RESEARCH, 2017, 37(5): 878-884.
[3]	Yang Qingjiang, Wen Xiaohao, Li Baosheng, Chen Min, Ma Jiali, Li Fang, Niu Dongfeng. Grain Size Characteristics and Sedimentary Environment of the Tumen Section in Southern Tengger Desert during the Interstadial of the Last Glacial [J]. JOURNAL OF DESERT RESEARCH, 2017, 37(4): 666-677.
[4]	Wen Xiaohao, Li Baosheng, Meng Jie, Yang Qingjiang, Zheng Yanming, Niu Dongfeng, Wang Fengnian, Cai Yuhang. Grain size Characteristics of Coastal Aeolian Sediments in the Pingtan Island of Fujian, China, and their Implications for the Paleo-Environment from 150 ka BP to 20 ka BP [J]. JOURNAL OF DESERT RESEARCH, 2015, 35(6): 1473-1482.
[5]	Gao Pengkun, Pang Jiangli, Huang Chunchang, Zhou Yali, Wang Leibin, Wang Xuejia. Weathering Intensity of the Chafangcun Loess-paleosol Profile in Shaanxi, China and Its Response to Climate Change [J]. JOURNAL OF DESERT RESEARCH, 2014, 34(5): 1248-1253.
[6]	SI Yue-jun, LI Bao-sheng, WEN Xiao-hao, YANG Yi, DU Shu-huan, NIU Dong-feng, WANG Feng-nian, ZHAO Xin-nan, WANG Jiang-long. Climate Fluctuations during the Earlier Last Glacial Reflected by the MGS4 Segment in the Salawusu River Valley, China [J]. JOURNAL OF DESERT RESEARCH, 2012, 32(4): 938-946.
[7]	JIA Jia;XIA Dun-sheng;WEI Hai-tao;JIN Ming;LIU Xian-bin;WANG Bo. Magnetic Property and Paleoclimatic Implication Recorded by AXK Sequence in West Tianshan Area [J]. JOURNAL OF DESERT RESEARCH, 2011, 31(6): 1406-1415.
[8]	WEN Xiao-hao;LI Bao-sheng;David Dian Zhang;ZHENG Yan-ming;NIU Dong-feng;DU Shu-huan. Climate Fluctuations during Marine Isotope Stage 3 Suggested by Major Element Records in The Milanggouwan Stratigraphical Section in Salawusu River Valley, Inner Mongolia, China [J]. JOURNAL OF DESERT RESEARCH, 2009, 29(5): 835-844.
[9]	WANG Hai-bin, CHEN Fa-hu, ZHANG Jia-wu. Environmental Significance of Grain Size of Loess-paleosol Sequence in Western Part of Chinese Loess Plateau [J]. JOURNAL OF DESERT RESEARCH, 2002, 22(1): 21-26.

Mid-late Holocene environmental changes recorded by fluvio-lacustrine and aeolian sediments in the eastern sandy land of Qinghai Lake

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