We analysed the late-Holocene pedo-sedimentary archives of La Narse de la Sauvetat, a hydromorphic depression in the southern Limagne plain (central France), where chronologically accurate studies are scarce. The multi-proxy geoarchaeological and palaeoenvironmental analysis of two cores from different areas of the basin was carried out through sedimentological, geochemical, micromorphological and malacological investigations. Integration of these datasets supported by a robust radiocarbon-based chronology allowed discussion of socio-environmental interactions and anthropogenic impacts from Late Neolithic to Early Middle Ages. Until the Middle Bronze Age, there was no clear evidence of anthropogenic impact on soils and hydro-sedimentary dynamics of the catchment, but two peaks of high alluvial activity probably related to the 4.2 and 3.5 kyr. BP climate events were first recorded in Limagne. Significant anthropogenic impacts started in the Late Bronze Age with increased erosion of the surrounding volcanic slopes. However, a major threshold was reached c. 2600 cal BP with a sharp increase in the catchment erosion interpreted as resulting from strong anthropogenic environmental changes related to agricultural activities and drainage. This implies an anthropogenic forcing on soils and hydro-sedimentary systems much earlier than was usually considered in Limagne. These impacts then gradually increased during Late Iron Age and Roman periods, but environmental effects were certainly contained by progress in agricultural management. Late Antiquity environmental changes are consistent with regional trend to drainage deterioration in lowlands, but marked asynchrony in this landscape change suggests that societal factors implying differential land management were certainly predominant here.

中文翻译：

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人类早期对土壤和水文沉积系统的影响：来自 La Narse de la Sauvetat（法国）的多代理地质考古分析

我们分析了 La Narse de la Sauvetat 的全新世晚期土壤沉积档案，La Narse de la Sauvetat 是位于利马涅平原南部（法国中部）的一个水质洼地，在该地区缺乏按时间顺序排列的准确研究。通过沉积学、地球化学、微形态学和苹果酸学调查，对来自盆地不同地区的两个岩心进行了多代理地质考古和古环境分析。整合这些由基于放射性碳的年表支持的数据集，可以讨论从新石器时代晚期到中世纪早期的社会环境相互作用和人为影响。直到青铜器时代中期，没有明确的证据表明人为对流域的土壤和水文沉积动力学产生影响，但两个高冲积活动高峰可能与 4.2 和 3.5 kyr 有关。BP 气候事件首先在利马涅记录。重大的人为影响始于青铜时代晚期，周围火山斜坡的侵蚀加剧。但是，达到了一个主要阈值 c。2600 cal BP，流域侵蚀急剧增加，解释为与农业活动和排水相关的强烈人为环境变化。这意味着对土壤和水文沉积系统的人为强迫比通常在利马涅考虑的要早得多。这些影响随后在铁器时代晚期和罗马时期逐渐增加，但农业管理的进步肯定会抑制环境影响。上古晚期环境变化与低地排水恶化的区域趋势一致，