Sedimentary profile and surface soil pollen

The 769 sites of pollen percentages in the surface soil were based on experimental data accumulated by our research group and published data. A total of 30 pollen spectra with pollen percentage or concentration data of sedimentary profiles were collected and retained. Generally, the mean sampling resolution was < 700 years, the entire record spanned a minimum of 6000 years and the chronology was based on a minimum of two radiocarbon dates. Based on these published pollen data, 55 major terrestrial pollen families or genera were digitized using GetDataW_2.26 software.