中文摘要：

东南的中国黄土高原是东方亚洲冬季季风搬运的灰尘的终端免职区域和东方亚洲夏天季风渗透的正面的区域，并且这样气候敏感区域。这份报纸报导岩石在如此的一个区域的第四级的 loess-paleosol 节的磁性的学习。我们试着重建在这个区域的古气候进化历史在有磁性的参数的 1.950.40 妈期间。结果给一个将军看 HIRM/(SIRM-IRM100 mT ) 的比率的起来节减少趋势，显示在存款的赤铁矿 coercivities 的一个长期的减少趋势，它能主要与在间冰期的 depositional 区域和冰川的灰尘来源区域冷却和环境的 aridification 趋势有关。比率， lf/ 手臂，广泛地过去常反映磁性的矿物质谷物尺寸的变化，表明磁性的矿物质谷物尺寸的一个长期的增加趋势并且趋于显示控制了 pedogenic 紧张的东方亚洲夏天季风的一个全面变弱趋势。尽管地区性的多分割的 paleoclimatic 记录在我们的学习由几个磁性的参数揭示了，冷却的长期的亚洲人和这里推断的 aridification 趋势具有全球关联意义。

英文摘要：

The southeastern Chinese Loess Plateau is the terminal deposition area of dusts transported by the East Asian winter monsoon and the frontal area penetrated by the East Asian summer monsoon, and thus a climate sensitive region. This paper reports a rock magnetic study of a Quaternary loess-paleosol section in such a region. We tried to reconstruct the paleoclimate evolution history in the region during 1.95-0.40 Ma with magnetic parameters. The results show a general up-section decreasing trend of the ratio of HIRM/（SIRM-IRM100 mT）, indicating a long-term decreasing trend of hematite coercivities in the deposits, which can be mainly related to the cooling and aridification trend of the environment in interglacial depositional area and glacial dust source region. The ratio, ХIf/ХARM, widely used to reflect the variations of magnetic mineral grain size, manifests a long-term increasing trend of the magnetic mineral grain size and tends to indicate an overall weakening trend of the East Asian summer monsoon that controlled the pedogenic intensity. Although the regional multi-segmented paleoclimatic records revealed by several magnetic parameters in our study, the long-term Asian cooling and aridification trend inferred here is of global correlation significance.