摘要
对洛阳盆地平原区典型剖面的物质组成、测年数据和考古遗址空间分布特点的综合分析显示,该地区全新世地貌环境经历了伊、洛河一、二级阶地形成、阶地面接受洪积冲积物质和风尘物质不断加积、伊、洛河夹河滩地不断扩大的演变过程.二级阶地形成于全新世初期,一级阶地形成于约3.1 ka BP,阶地形成的原因以气候变化为主,因此两级阶地为气候阶地;夹河滩地自晚全新世开始,因伊、洛河汇流点东移而不断扩大;引起滩地扩大的根本原因是人类活动的不断加强.
The Comprehensive analysis of physical makeup,dating data , and the characteristics of archaeological sites＇spatial distribution of Luoyang basin plain areag typical sections shows that Luoyang basin plain area Holocene landforms environment have experienced the process of evolution as：the formation of the first and secondary terrace of Yi River and Luo River, the surface of terace accepting alluviation diluviation matters , then blowing dust continuing buildup , and finally the gradually expansion of flood bed of Yi River and Luo River. The Initial stage terrace took form in about 3100 a BP while the secondary stage terrace was formed in Holocene. The reason for the formation of terrace gave first place to climate change , therefore two-stage terrace is a climate terrace. Flood bed land was expanding unceasingly because of confluence moving to east since late Holocene. The fundamental cause of bettomland expandation was the continued acceleration of human activity.
出处
《信阳师范学院学报（自然科学版）》
CAS
北大核心
2007年第3期381-384,共4页
Journal of Xinyang Normal University(Natural Science Edition)
基金
河南省自然科学基金项目(0511020500)
河南省教育厅自然科学基金项目(200510480006)
河南省高校青年骨干教师资助项目(182)
关键词
洛阳盆地
全新世
地貌演变
Luoyang basin
holocene
evolution of landforms
作者简介
张本昀（1964-），男，河南周口人，副教授，博士研究生，主要从事遥感与地理信息系统、区域环境演变研究、通讯联系人。E-mail：zhbyunCM@163．com
