达里湖盐度记录数据集（全新世）

全新世东亚夏季风（EASM）降水对中国北方生态系统的影响是延迟还是同步存在争议。在本研究中，我们根据烯酮替代品，对中国北方达里湖全新世的温度和盐度记录进行了定量重建。将重建数据与植被数据进行对比后，我们提出，全新世中期，稳定而丰富的东亚夏季风降雨促进了中国北方的森林扩张和植被恢复，这表明中国北方的生态系统和东亚夏季风降雨是耦合的。

Whether the impacts of Holocene East Asian Summer Monsoon (EASM) precipitation on the ecosystems in northern China are delayed or synchronous remains controversial. In this study, we conducted quantitative reconstructions of Holocene temperature and salinity records from Dali Lake in northern China based on alkenone proxies. After comparing the reconstructed data with vegetation data, we propose that during the mid-Holocene, stable and abundant EASM rainfall promoted forest expansion and vegetation restoration in northern China, indicating that the ecosystems in northern China are coupled with EASM precipitation.