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Early human impacts on vegetation on the northeastern Qinghai-Tibetan Plateau during the middle to late Holocene
Huang, Xiao-zhong1; Liu, Si-si1; Dong, Guang-hui1; Qiang, Ming-rui1; Bai, Zhi-juan1; Zhao, Yan2; Chen, Fa-hu1
2017-06-01
Source PublicationPROGRESS IN PHYSICAL GEOGRAPHY
ISSN0309-1333
Volume41Issue:3Pages:286-301
Corresponding AuthorHuang, Xiao-zhong(xzhuang@lzu.edu.cn)
AbstractThe ecosystems of the Qinghai-Tibetan Plateau are regarded as being primarily regulated by climate because of the harsh environment of the region and the resulting sparse human population. Recent studies have revealed that Neolithic farmers and nomads extensively settled in the northeastern Qinghai-Tibetan Plateau from 5.2 ka (ka = cal ka BP); however, it is unclear how and to what extent human activity has affected its vegetation. Here we combine the results of the pollen analysis of a sediment core from Genggahai Lake, a shallow lake in Gonghe Basin on the northeastern Qinghai-Tibetan Plateau, with archaeological evidence and use them to assess the extent and nature of human impacts on the regional vegetation during the middle and late Holocene. The pollen record indicates that Stellera, an indicator of the extent of grazing-induced grassland degradation, first appeared at 4.7 ka, expanded during 3.6-3.0 ka, and finally increased significantly after 1.6 ka. In support of this finding, archaeological data indicate that the agro-pastoral Majiayao people arrived at approximate to 5 ka and groups of Kayue people, who practiced pastoralism, intensively colonized the Gonghe Basin and nearby Qinghai Lake basin during 3.6-3.0 ka. After approximate to 1.6 ka, from the Tang Dynasty onwards, human settlement and grazing activity intensified on the northeastern Qinghai-Tibetan Plateau, and this is in accord with the observed high percentages of Stellera in the pollen record. Based on comparison with other records, we conclude that the sediments of Genggahai Lake provide a record of anthropogenic impacts on vegetation, and that human activity may have contributed to regional forest decline during the middle Holocene, and to grassland degradation in the late Holocene. Grassland degradation caused by human activity may be an indicator of the start of the Anthropocene and potentially may have contributed to global climate change via increased dust emission to the atmosphere.
KeywordQinghai-Tibetan Plateau Stellera pollen human impact on vegetation Neolithic grazing activity Anthropocene
DOI10.1177/0309133317703035
WOS KeywordBASIN WESTERN TIBET ; CLIMATE-CHANGE ; SOUTHERN TIBET ; ENVIRONMENTAL-CHANGES ; POLLEN RECORD ; SICHUAN PROVINCE ; CENTRAL CHINA ; LAKE ; MOUNTAINS ; HISTORY
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41171168] ; National Natural Science Foundation of China[41271219] ; National Natural Science Foundation of China[41620104007]
Funding OrganizationNational Natural Science Foundation of China
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000403608600003
PublisherSAGE PUBLICATIONS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/63158
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHuang, Xiao-zhong
Affiliation1.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou, Gansu, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Huang, Xiao-zhong,Liu, Si-si,Dong, Guang-hui,et al. Early human impacts on vegetation on the northeastern Qinghai-Tibetan Plateau during the middle to late Holocene[J]. PROGRESS IN PHYSICAL GEOGRAPHY,2017,41(3):286-301.
APA Huang, Xiao-zhong.,Liu, Si-si.,Dong, Guang-hui.,Qiang, Ming-rui.,Bai, Zhi-juan.,...&Chen, Fa-hu.(2017).Early human impacts on vegetation on the northeastern Qinghai-Tibetan Plateau during the middle to late Holocene.PROGRESS IN PHYSICAL GEOGRAPHY,41(3),286-301.
MLA Huang, Xiao-zhong,et al."Early human impacts on vegetation on the northeastern Qinghai-Tibetan Plateau during the middle to late Holocene".PROGRESS IN PHYSICAL GEOGRAPHY 41.3(2017):286-301.
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