作　　者： ; ; ; ; ;

机构地区： 长安大学地球科学与国土资源学院

出　　处： 《地球科学与环境学报》 2004年第2期81-84,94,共5页

摘　　要： 　在野外详细观测的基础上,对天水谢家湾全新世黄土剖面以2cm为间距进行了连续采样,并对所有样品作了磁化率和粒度分析,结果综合反映出研究区自全新世以来,经历了早期升温、中期基本暖湿、晚期趋于干冷的气候环境演化阶段,其中全新世中期在总体温湿的大背景下,存在频繁的气候波动。以此为基础,结合对渭河文化的历史研究资料,探讨了区内约1万年以来的人地关系演化历史,指出人地关系的和谐与统一,对人类社会发展具有重要意义。 A Holocene epoch loess-palaeosoil profile in Tianshui area was studied with field investigation and laboratory analysis. Grain-size analyses and magnetic susceptibility records, used as a proxy indicator of East Asia winter monsoon and a proxy indicator of summer monsoon respectively, together indicate that the climatic environment transition of Holocene epoch in Tianshui area can be divided into three main stages: first Anathermal, then Magathermal, and last Katathermal, and during the middle Magathermal period, a cold and arid event occurred in the studied area. Meanwhile, based on the climate history, the author also discussed the evolution of human-earth relationship since about 10 ka B.P. through consulting archaeological documents and historical records.

关 键 词： 天水地区 全新世 环境变迁 人地关系演化 古气候环境

领　　域： [天文地球] [天文地球] [社会学] [经济管理]