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洛阳盆地全新世特大洪水平流沉积物判别研究

ISSN号：1003-7578
期刊名称：干旱区资源与环境
时间：2012
页码：162-168
分类：P532[天文地球—古生物学与地层学;天文地球—地质学]
作者机构：[1]北方民族大学管理学院,宁夏银川750021, [2]陕西师范大学旅游与环境学院,陕西西安710062, [3]南京信息工程大学科学学院,江苏南京210044
相关基金：国家自然科学基金（40771018,40801008）; 北方民族大学2011年国家自然科学基金前期培育项目资助
相关项目：汉江上游(南水北调水源区)万年尺度古洪水水文学研究

关键词：渭河流域东部, 全新世, 黄土-古土壤, 环境演变, 新石器文化, eastern Weihe River Basin, Holocene, loess-paleosol, environment change, neolithic culture

中文摘要：

在对渭河流域东部全新世黄土剖面磁化率、粒度、Rb/Sr、CaCO3等气候指标测定分析的基础上,结合已测定的光释光（OSL）年龄和古文化研究的最新成果,探讨了该区环境演变与人类古文化演进的历史及其相互关系。研究发现,在9.34～6.77 ka BP全新世最适宜的气候条件下,在7.80～7.30 ka BP出现了老官台文化,之后发育了仰韶早期文化;在全新世中期6.77～5.48 ka BP干冷气候初期出现了仰韶文化最繁荣的庙底沟类型文化;中后期随资源环境的持续恶化,该区出现了仰韶文化衰落的西王村类型文化;在全新世中晚期的5.48～3.12 ka BP气候再次发生好转推动了该区龙山文化的发展;4.60～3.76 ka BP期间频繁发生的洪水事件可能进一步强化了人地关系,并进而推动了该区文化进入夏商人类文明时期;3.12 ka BP以来趋于干冷的气候在推动该区人类文明进一步发展的同时,人类活动对环境影响的强度和范围也日益加大。渭河流域古文化得以延续发展至今,一方面说明气候环境的变化并未超越先民适应能力的范围,另一方面也说明渭河流域具有先民维持生存和发展的优越资源环境条件。

英文摘要：

Based on systematic measurement and analysis of magnetic susceptibility,grain size,Rb/Sr ratio and CaCO3 for Laoguantai（LGT） profile in eastern Weihe River Basin,and combining the dated optical luminescence（OSL） ages and the latest achievements of ancient culture in this area,the paper investigate the histories of the environment change and ancient cultural evolution and their relationship during the Holocene.There bred the Laoguantai culture in about 7.80-7.30 ka BP in conditions of the Holocene climatic optimum（during 9.34-6.77 ka BP）,and the early Yangshao culture developed subsequently.In the early middle Holocene of 6.77-5.48 ka BP,the most prosperous of the Miaodigou type of Yangshao culture emerged in conditions of dry and cold climate;and in the mid-late period of 6.77-5.48 ka BP,with the continuing deterioration of the environment and resources,Yangshao culture decline occurred in the area and become the Xiwangcun type culture.In the mid-late Holocene of 5.48-3.12 ka BP,recurrence of better climate to promote the development of Longshan Culture in the area;The frequent occurrence of flood events may further strengthen man-land relationship during 4.60-3.76 ka BP,which promoted the ancient culture of the area into the human civilization period of the Xia and Shang.The dry and cold trends of climate in the area had tended to promote the further development of human civilization since 3.12 ka BP,consequently,the impact strength and range of human activities on environmental was growing.As mentioned above,the appropriate climate conditions corresponds with a culture of the origins and development,such as origin of Laoguantai Culture in the early Holocene,then the development and prosperity of Yangshao Culture and great development of Longshan Culture during the middle-late Holocene.Contrarily,the worsened climate conditions corresponds with a cultural decline and even break,such as a kind of decadent Yangshao Culture,Xiwangcun Culture due to the continue dry and cold climate during the later peri

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