中文摘要：

在在在不同气候的记录反映的 MWP 期间的东方中国的季风力量，潮湿或降水的变化显示出明显的差异。这里，详细说明了环境磁性的调查，矿物学的分析在核心 GH09B1 的湖的沉积上被进行(2.8 m 长) 从贡海·莱克，山西，诺思中国，有关季风历史在 MWP 期间。结果证明主要磁性的矿物质是磁铁矿。有相对高的磁性的矿物质集中的沉积被相对好的磁性的谷物尺寸描绘，它在相对强壮的成土作用和高降水的一个时期被形成。相反，有低磁性的矿物质集中的沉积反映了一个相反的过程。在贡海·莱克沉积的磁性的参数的变化被成土作用的度主要在湖排水盆控制，它进一步显示了亚洲夏天季风的力量。在核心的 and S 300 参数的变化清楚地在学习区域在最后 1200 年揭示亚洲夏天季风历史，建议在中世纪的温暖的时期期间的通常丰富的降水和强壮的夏天季风(MWP，广告 9101220 ) ，它被花粉证据支持。而且，这 36 年的分辨率环境磁性的记录在广告 9801050 附近显示一个干燥事件，打断通常潮湿的 MWP。在磁性的参数与历史的文档(诺思中国)和 speleothem 氧同位素( Wanxiang 洞)从贡海·莱克相互关联在沉积记录很好的最后千年上的夏天季风进化，以及当模特儿的 降水结果(热带以外的东亚)，它都显示一百年规模的潮湿可变性在以内存在的通常潮湿的 MWP 。环境磁性的参数能在高分辨率的湖的沉积为季风气候变化被用作一个有效代理，这因此被表明。

英文摘要：

Variations in monsoon strength, moisture or precipitation in eastern China during the MWP reflected by differenl climatic records have shown apparent discrepancies. Here, detailed environmental magnetic investigations and mineralogical analyses were con- ducted on lacustrine sediments of Core GH09B1 （2.8 m long） from Gonghai Lake, Shanxi, North China, concerning the monsoon history during the MWP. The results demonstrate that the main magnetic mineral is magnetite. The sediments with relatively high magnetic mineral concentrations were characterized by relatively fine magnetic grain sizes, which were formed in a period of relatively strong pedogenesis and high precipitation. In contrast, the sediments with low magnetic mineral concentrations reflected an opposite process. The variations of magnetic parameters in Gonghai Lake sediments were mainly controlled by the degree of pedogenesis in the lake drainage basin, which further indicated the strength of the Asian summer monsoon. The variations in the X and S-300 parameters of the core clearly reveal the Asian summer monsoon history over the last 1200 years in the study area, sug- gesting generally abundant precipitation and a strong summer monsoon during the Medieval Warm Period （MWP, AD 910-1220） which is supported by pollen evidence. Furthermore, this 3-6-year resolution environmental magnetic record indicates a dry event around AD 980-1050, interrupting the generally humid MWP. The summer monsoon evolution over the last millennium recorded by magnetic parameters in sediments from Gonghai Lake correlates well with historical documentation （North China） and spele-othem oxygen isotopes （Wanxiang Cave）, as well as precipitation modeling results （extratropical East Asia）, which all indicate a generally humid MWP within which centennial-scale moisture variability existed. It is thus demonstrated that environmental magnetic parameters could be used as an effective proxy for monsoon climate variations in high-resolution lacustrine sediments.