干旱区生态环境知识资源中心(Arid): 艾比湖Ash浅孔沉积信息揭示的环境演变过程

Arid

	艾比湖Ash浅孔沉积信息揭示的环境演变过程
其他题名	Environmental Evolution of Aiby Lake Indicated by Ash core Sediment’s Information
	苗壮 1; 穆桂金1 ; 阎顺 1; 谢宏琴 2
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2003
卷号	26 期号:4 页码:367-371
中文摘要	通过对艾比湖西南湖底1.8m浅孔的沉积特征、粒度组成、有机地化分析结合14C测年数据重建湖泊沉积时代的环境面貌.研究显示近3000年来艾比湖地区的环境总体上是相对稳定的,全球的气候波动曾引起艾比湖水位和周边环境发生一定的变化.其中艾比湖在2600～2450a BP年间湖水相对较浅,气候相对冷干.2300a BP年左右湖泊深度变浅,剖面处受到河流的影响.2300～440a BP年间是艾比湖的高水位时期,气候温暖湿润,水陆生植物繁茂.440a BP以来湖泊变浅,气候变得更加干旱.艾比湖作为一内陆干旱区封闭型湖泊,对全球环境变化的响应较为敏感,艾比湖的形成演变具有典型的干旱区代表性.
英文摘要	As a typical closed lake in inland of arid area, Aiby lake has very sensitive response to the change of environment. The forming and evolution of Aiby lake are representative in arid area, therefore the study on forming and evolution of Aiby lake can reveals the environmental change in Aiby lake area during the geologic period. Based on the analysis of the sediment faces, granularity by Malvern 2000 laser granularity instrument, organic geochemieal used analytical instrument of CHN in 1. 8m Ash core of Aiby lake southwest: bottom, we rebuild the environment according different sediment era of Aiby lake with the 14C dating data. The results of this study indicate that as a whole the environment of Aiby lake area is comparatively stable in the past 3000 years, but the water level of Aiby lake and the environment around the lake varied obviously mainly because of climatic vibration. During 2 6()0~2 450a BP, the water level of the lake was low and the climate was cold and dry. Around 2 300a BP, the water level was lower than that of before. The river influenced the lake sharply. During 2 300~440a BP, the water level became high , the weather was warm and wet and the plants in land and water luxuriated. After 440a BP, the Aiby lake got shallow. The climate became much more arid. As a typical closed lake in inland of arid area, Aiby lake has sensitive response to the change of globe environment. The forming and evolution of Aiby lake are representative in arid area.
中文关键词	艾比湖 ; 粒度特征 ; 有机地化 ; 环境演变
英文关键词	Aiby Lake grainsize characteristic organic geochemieal environmental evolution
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECONOMICS
WOS研究方向	Business & Economics
CSCD记录号	CSCD:1574226
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204024
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.中国科学院广州地球化学研究所, 广州, 广东 510640, 中国
推荐引用方式 GB/T 7714	苗壮,穆桂金,阎顺,等. 艾比湖Ash浅孔沉积信息揭示的环境演变过程[J]. 中国科学院新疆生态与地理研究所,2003,26(4):367-371.
APA	苗壮,穆桂金,阎顺,&谢宏琴.(2003).艾比湖Ash浅孔沉积信息揭示的环境演变过程.干旱区地理,26(4),367-371.
MLA	苗壮,et al."艾比湖Ash浅孔沉积信息揭示的环境演变过程".干旱区地理 26.4(2003):367-371.