PALYNOLOGICAL records of human activities in the middle and late Holocene of the Tibetan Plateau

PALYNOLOGICAL records of human activities in the middle and late Holocene of the Tibetan Plateau


Based on the previous research results, this paper collected the palynological sequence of the plateau strata from the published literature at home and abroad, and selected reliable records, in order to explore the information of human activities in this area. The selection principles are as follows: (1) the palynological sequence time should cover the middle and late Holocene (since 6.0kabp.)( 2) The time series are expressed quantitatively in calendar year or 14C year time system( 3) It has high resolution( 4) According to the above principles, 28 fossil sporopollen sequences are selected in this area. Age correction: some of the 28 sequences are calendar years, and some are carbon 14 dating, so they are corrected to calendar years. Data acquisition: the sequence is quantified, and the sporopollen content and corresponding age of the sequence are read to ensure the validity of the data, The inflection point data is selected first, and the average sporopollen content data of less than 100 years is selected. A total of 568 sporopollen records are obtained from 28 sequences, Abstract and calculate the parasporal pollen records since the middle and late Holocene (6.0 ~ 2.0 Ka B.P.) in the merging cost area. Based on the original parasporal pollen records extracted from 28 stratigraphic fossil sporopollen sequences, the deviation method is used to standardize the sequence, so as to eliminate the dimensional differences between different sporopollen types and compare them, The original data after standardization is converted into standardized values, and then the average value of each record in each partition is calculated, so that it can be combined with the sporopollen records in the cost area, which is called companion index in this paper. It means that the higher the index is, the stronger the intensity of human activity is, and the lower the index is, the weaker it is


File naming and required software

There are seven worksheets in this data set, which are Pb, Zn Zoige (PB), Pb, Zn Zoige (Zn), zb08-c1 (zone 2), the number of sites in Western Sichuan, the population in eastern Qinghai, the number of sites in eastern Qinghai, and the probability distribution of carbon chips in Southern Qinghai. Among them, Pb, Zn Zoige (PB) and Pb, Zn Zoige (Zn) are the data of age and content. In zb08-c1 (zone 2) worksheet are the carbon concentration and age data. The number of sites in Western Sichuan is shown in the worksheet. The year and population data are included in the table of population quantity in eastern Qinghai. The number of sites in eastern Qinghai is the corresponding age and quantity data of sites in eastern Qinghai. In the table of probability distribution of carbon chips in southern Qinghai, there are age and probability data. Data files can be opened with office software or imported into relational database system,


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Hou, G. (2021). PALYNOLOGICAL records of human activities in the middle and late Holocene of the Tibetan Plateau. National Tibetan Plateau Data Center, DOI: 10.11888/Paleoenv.tpdc.271271. CSTR: 18406.11.Paleoenv.tpdc.271271. (Download the reference: RIS | Bibtex )

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Support Program

Foundation of Qinghai Provincial Key Laboratory of Geospatial Information Technology and Application (No:2019-002)

National Natural Science Foundation of China, No.41761018 (No:41761018)

The Chinese Academy of Sciences (Class A) Strategic Priority Science and Technology Program (No:XDA2004010101)

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Geographic coverage
East: 106.00 West: 75.00
South: 25.00 North: 45.00
Details
  • Temporal resolution: Yearly
  • Spatial resolution: -
  • File size: 1 MB
  • Views: 525
  • Downloads: 0
  • Access: Protection period
  • Temporal coverage: 6000 - 2000 years ago
  • Updated time: 2021-04-30

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