兰州大学机构库 >资源环境学院
Holocene vegetation history and environmental changes inferred from pollen records of a groundwater recharge lake, Badain Jaran Desert, northwestern China
Ning, Kai1,2,3; Wang, NA(王乃昂)2,3; Yang, Zhenjing1; Zhang, Lvlv2,3; Wang, Yixin2,3; Li, ZL(李卓仑)2,3; Bi, Zhiwei1
2021-09-01
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume577
AbstractGroundwater, rather than regional precipitation, is critical to the development and maintenance of lakes in arid regions. We selected a sedimentary section in the Badain Jaran Desert, northwestern China, where the lakes are mainly groundwater-recharged, to reconstruct past vegetation development and environmental evolution, and to address the driving mechanisms of lake evolution by applying lithological and pollen analyses. Our results show the following: aeolian deposits indicate an extremely dry environment before 11 ka; peat deposition from 11 to 10.2 ka indicates humidification after the Younger Dryas event; limnetic deposits and dry steppe landscape indicate increased humidity from 10.2 to 7.2 ka; lacustrine deposits and dry steppe landscape with few drought resistant plants indicate the highest humidity from 7.2 to 5.4 ka; lacustrine deposits and desert steppe landscape with increasing Ephedra and decreasing Artemisia indicate gradual aridification from 5.4 to 3.6 ka; and shallow lake deposits and abundant drought resistant plants indicate the driest conditions from 3.6 to 0.8 ka. Here, we comparatively analyzed modern hydrologic data from the Badain Jaran Desert and surrounding regional studies of environmental evolution. It was found that the effective moisture changes in the desert, which proved to be different from both the monsoonal area and the region under the influence of westerlies, were controlled by groundwater recharge from glacier meltwater and regional precipitation over the northeastern Tibetan Plateau.
KeywordMonsoon-westerly transition zone Principal component analysis Scanning electron microscope Lithology Tibetan Plateau Arid area
PublisherELSEVIER
DOI10.1016/j.palaeo.2021.110538
Indexed BySCOPUS ; SCIE
Language英语
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000678383100015
Original Document TypeArticle
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/451960
Collection资源环境学院
Affiliation1.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China;
2.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China;
3.Lanzhou Univ, Ctr Glacier & Desert Res, Lanzhou 730000, Peoples R China
First Author AffilicationCollege of Earth Environmental Sciences
Recommended Citation
GB/T 7714
Ning, Kai,Wang, Naiang,Yang, Zhenjing,et al. Holocene vegetation history and environmental changes inferred from pollen records of a groundwater recharge lake, Badain Jaran Desert, northwestern China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,577.
APA Ning, Kai.,Wang, Naiang.,Yang, Zhenjing.,Zhang, Lvlv.,Wang, Yixin.,...&Bi, Zhiwei.(2021).Holocene vegetation history and environmental changes inferred from pollen records of a groundwater recharge lake, Badain Jaran Desert, northwestern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,577.
MLA Ning, Kai,et al."Holocene vegetation history and environmental changes inferred from pollen records of a groundwater recharge lake, Badain Jaran Desert, northwestern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 577(2021).
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