中文摘要：

本文结合最近获得的新资料，对南洛河流域的地貌、黄土沉积和更新世环境进行综合分析。结果表明，南洛河上、中游地貌表现为河流峡谷和山间盆地相间分布的特征，盆地中河流阶地发育；下游为平缓的山前平原和低山丘陵。黄土在全流域的山顶、河流阶地和盆地等各种地貌部位均有分布。黄土沉积受地形影响较大，上游黄土堆积速率低、颗粒细；在下游有风道直通的地方，黄土堆积速率高、颗粒粗。在不同地貌部位，黄土开始堆积的年代不同，黄土底界的年代从早更新世到晚更新世均有所见。对埋藏旧石器的年代研究表明，南洛河流域的古人类活动从早更新世晚期（约800ka）开始，到晚更新世后期（约30ka）结束，期间有多期遗存。初步的孢粉和有机碳同位素分析表明，这里曾是森林草原景观，冰期时，乔木植被以松属为主，C4类型草本减少；而间冰期时，乔木植被以松属一榆科占主导地位，C4类植物增多。古人类在黄土堆积期和古土壤发育期都可能在这个地方活动，但这一认识需要更多的证据支持。丰富的石制品分布和较为连续的黄土沉积，使南洛河流域成为理解更新世人类行为与环境的重要区域。

英文摘要：

Over the past 20 years,more than 300 Paleolithic sites have been found in catchment of South Luohe River, Central China. This river is located at the environmental boundary between North and South China. To its south, climate is characterized by the subtropical monsoon; to the north,it is a warm temperate climate. Many lithic artifacts are scattered on the surface of various landforms and buried in aeolian loess deposits and cave sediments. The Paleolithic artifacts are made up of chopper-chopping（Mode 1 ）assemblages such as cores,flakes, choppers, scrapers and points and Acheulian-like large-cutting tools （ Mode 2） such as hand-axes, cleavers, trihedrals, knives. The region contains both small tools reminiscent of North China and biface technology produced on large pebbles characteristic of South China. It appears that early humans repeatedly occupied this region. In summer of 2004, our interdisciplinary team was set up and field exploration focussed on different landforms, particularly loess deposits that reflected past environmental changes, was undertaken. Eight archaeological sites were excavated, and sediment samples were taken from 14 loess-paleosol sections. Over 20000 lithic artefacts were collected and more than 10 thousand loess samples have been obtained and studied. In this paper, we discuss recent findings during 2009 ~ 2011 on understanding landform evolution, the loess- paleosol record ,paleoenvironmental reconstruction and relationship between hominines behavior and these landforms. The results show that the landforms of the South Luohe River can be divided into two parts： the upper part is characterized by mountains and intermountain basins,with gorges and narrow rivers,where the channel gradient ratio is greater and the river current is relatively swift. The lower part is characterised by a piedmont plain with a smaller stream channel grad!ent ratio ,where the river is braided with relatively slow flowing water. There is an extensive loess cover in this catchment,and its fe