Paleo-environmental changes since the last glacial period based on the quantitative reconstruction of paleo-precipitation from loess-paleosol sequences in China

Abstract

I attempt to clarify the quantitative corelation between magnetic susceptibility as a paleoenvironment proxy and modern annual precipitation. As the result, I found the strongest relationship(r=t0.91) on the logarithm of magnetic suceptibity against modern annual precipitation. Then, I make the quantitative reconstruction of paleoprecipitation in Tieushau and Dajatai loess sections by using that equation. Compared with estimated precipitation by using magnetic succeptibility and modern precipitation, it’s shown that estimated paleoprecipitation of surface horizon is almost equal to modern one.