Late Holocene human population change revealed by fecal stanol records and its response to environmental evolution at Xiada Co on the western Tibetan Plateau

Diatom-based inferences of environmental changes from an alpine lake on the southeast edge of the Tibetan plateau over the last 4000 years

“…As an area affected by the ISM, these phenomena comprehensively reflect the decreasing trend of the ISM strength during the past ∼4000 years. This trend is consistent with other records from the Tibetan Plateau, such as the quantitative summer temperature reconstruction based on subfossil chironomids from Tiancai Lake on the SE edge 10.3389/feart.2024.1324724 of the Tibetan Plateau (Zhang et al, 2017); the pollen-based mean July temperature reconstruction from Xingyun Lake on the SE edge of the Tibetan Plateau (Wu et al, 2018); summer temperature variations reconstructed from a synthesis of fossil pollen records from the Tibetan Plateau (Figure 6) (Chen et al, 2020); and a decreasing trend over the past ∼4000 years that has also been reported by the temperature record from Xiada Co on the western Tibetan Plateau (Li et al, 2024). Our records are also well correlated with the June-August land temperature reconstruction and growing degree days (using a baseline of 5°C) reconstruction for North America and Europe (Figure 6) (Marsicek et al, 2018).…”