The last millennium climate reconstructions are complex and limit our understanding of the mechanisms behind environmental and climate variability. We present multi-proxy centennial-scale records from the Cherai, southwest India. The last 2000 cal yr AD record suggests a complex environmental condition that prevailed at the depositional site augmenting the role of natural as well as anthropogenic agents. Increased elemental variations and indices values indicate stronger weathering, presumably wetter conditions and intense precipitation. Provenance studies suggest diverse sources and the main composition fall close to the Charnockite and Gneissic composition. Multi-proxy data suggests that a shift towards wetter climatic conditions, which occurred from 910 to 1230 cal yr AD. The core also records a shift towards the drier conditions that started around 1230 cal yr AD with a loss in vegetation diversity. The pollution load index values suggest that the overall study area falls in moderate contamination levels, which are also substantiated with the diatom data indicating human influence in the natural habitat during the deposition time. The present study reveals that the enhanced Cd and As concentration is due to strong anthropogenic influence. We compared the multi-proxy record with other continental and marine palaeoclimatic records to explore global and/or regional trends in climate variability during the last 2000 years.

最近的千年气候重建非常复杂，并限制了我们对环境和气候多变性背后机制的理解。我们提供了来自印度西南部的Cherai的百年历史记录。2000年前的AD记录表明，沉积环境普遍存在着复杂的环境条件，从而增强了天然和人为因素的作用。元素变化和指数值的增加表明风化作用增强，可能是潮湿的条件和强降水。来源研究表明来源多种多样，其主要成分接近夏诺克岩和片麻岩成分。多代理数据表明，在公元910年至1230年之间，气候条件向潮湿的方向转变。核心还记录了向干燥条件的转变，该条件始于公元1230年左右，开始造成植被多样性的丧失。污染负荷指数值表明整个研究区域处于中等污染水平，这也得到硅藻数据的证实，该硅藻数据表明了人类在沉积期间对自然栖息地的影响。本研究表明，镉和砷的浓度增加是由于强烈的人为影响。我们将多代理记录与其他大陆和海洋古气候记录进行了比较，以探索过去2000年中全球和/或区域气候变化的趋势。硅藻数据也证实了这些数据，表明沉积期间人类对自然栖息地的影响。本研究表明，镉和砷的浓度增加是由于强烈的人为影响。我们将多代理记录与其他大陆和海洋古气候记录进行了比较，以探索过去2000年中全球和/或区域气候变化的趋势。硅藻数据也证实了这些数据，表明沉积期间人类对自然栖息地的影响。本研究表明，镉和砷的浓度增加是由于强烈的人为影响。我们将多代理记录与其他大陆和海洋古气候记录进行了比较，以探索过去2000年中全球和/或区域气候变化的趋势。