Response of Travertine Dam to Precipitation over the Past 800 Years in Zabuye Salt Lake, Southwestern Tibetan Plateau

The Tibetan Plateau is known as the core area of third pole Earth and a key for global climate change research. This study uses Zabuye Salt Lake travertine dam research object U–Th dating chronological framework proposes that carbon oxygen isotopes can be used precipitation index through analysis hydrogen spring water, petrology, mineralogy, travertine. records over last 800 years show dry condition in 1191–1374 AD (Medieval Warm Period), humid 1374–1884 (Little Ice Age), 1884–1982 (Current Warn indicating warm–dry/cold–moist pattern, which consistent with from many places on Plateau. We preliminarily point out record evolution paleoprecipitation (paleomonsoon) at least decadal–centennial scale. Indian summer monsoon has been main factor influencing past years, evapotranspiration intensity caused by temperature driven solar radiation also an important affecting dry–moist change.