中国内蒙古岱海DH99a岩芯粒度数据揭示的全新世东亚季风降水格局

岱海沉积物的粒度记录跨越了大约1万年，表明湖区的季风降水可分为三个阶段：早，中，晚全新世。在大约7900年前的全新世早期，中值粒径（Md）和淤泥含量相对较低且恒定，表明湖区降水量相对较低。大约在7900和3100年之间的中全新世以高度变化的季风降水为特征，正如湖泊沉积物的高变Md值和淤泥含量所表明的那样。

The grain size record of Lake Daihai sediments spans approximately 10,000 years, revealing that monsoon precipitation in the lake basin can be divided into three stages: the Early, Middle, and Late Holocene. During the Early Holocene (~7900 years ago), the median grain size (Md) and silt content remained relatively low and stable, indicating relatively low precipitation in the lake basin. The Middle Holocene, spanning approximately between 7900 and 3100 years ago, is characterized by highly variable monsoon precipitation, as evidenced by the highly fluctuating Md values and silt content of the lake sediments.