过去2000年是探讨人类活动与气候变化关系的重要“时间窗口”。由于缺乏珠江流域的高分辨率研究结果，限制了对我国东部季风区过去2000年人类活动变化及其对气候变化响应的整体认知。本项目拟选用高沉积速率的珠江河口沉积岩芯，建立可靠年代序列，开展高分辨率（约6-7年）多指标综合分析，利用岩芯中直接反映人类活动强度的指标（重金属Cu和黑碳含量）、同时受控于人类活动强度和气候变化影响的指标（化学风化、陆源输入量和河流输入量）和地表侵蚀强度指标（粒度和磁化率），与区域内已有的高分辨率气候记录和历史文献资料进行细致对比分析。揭示过去2000年以来多年代至百年尺度上人类活动的变化过程和特征，科学评估这些短尺度人类活动对气候变化的响应，厘清该区域人类活动、气候变化以及环境演变之间的关系；力图为全面理解我国东部季风区历史时期的“人地关系”提供区域性关键证据，也可为区域生态文明建设和可持续发展提供科学基础。

The past 2000 years have been an important time window for investigating the relationship between human activity and climate change. The knowledge of human activity and its response to climate change in the East China monsoon region over the past 2000 years are poorly constrained due to the lack of high-resolution records with detailed chronologies in the Pearl River Basin. This project will investigate the regional human-environment interactions over the past 2000 years using high-resolution multiproxy records from a well-dated sediment core (WS core) from the Pearl River Estuary. Specifically, the contents of heavy metal Cu and black carbon will be used to indicate changes in human activity, and other proxies (chemical weathering, terrigenous influx, fluvial discharge, magnetic parameters and grain size records) will be determined to reflect both human and climatic influence on the natural environments. By combining with the existing paleoclimatic, archaeological and historical documentary data from the study region and the surrounding areas, our results will reveal the multidecadal- to century-scale change processes and the characteristics of human activity and better understand past climate-human-environment interactions during the past 2000 years. This work will provide new knowledge and a better comprehensive understanding for man-land relationship during historic periods in the East China monsoon region, and also provide a scientific basis for ecological civilization construction and sustainable development in this region.