干旱区生态环境知识资源中心(Arid): 近130a来毛乌素沙漠北部泊江海子湖泊沉积记录的气候环境变化

Arid

	近130a来毛乌素沙漠北部泊江海子湖泊沉积记录的气候环境变化
其他题名	Environmental Evolution in Past 130 Lake Sediments in North Years Recorded by Bojianghaizi Mu Us Desert, China
	鲁瑞洁 1; 夏虹 1; 强明瑞 2; 张登山 1
ISSN	1000-694X
出版年	2008
卷号	28 期号:1 页码:44-49
中文摘要	系统简单、受人类活动干扰较小的湖泊沉积物真实地记录了湖区气候环境变化方面的大量信息，特别是沉积速率较快的湖泊，其沉积物是记录高分辨率气候环境变化的良好载体。通过对湖泊沉积物粒度以及元素地球化学特征的分析，探讨了毛乌素沙漠北部泊江海子地区近130a来的气候环境变化。结果表明：1932年前，气候总体上较为寒冷干旱（1876-1888年湖泊水位较低，气候温暖干旱，温度有下降的趋势；18881908年气候较上一阶段湿润，而温度有所降低；19081932年气候干旱并且波动频繁，又以1917年前后以及19241932年干旱程度最为严重，可能有强沙尘暴发生）；19321962年，气候温暖湿润但有变冷的趋势；19621976年气候频繁波动；1976年以来气候温暖湿润但有变干的趋势，尤其是1990年以后气候波动幅度增大并且出现了暖干化趋势。
英文摘要	Lake sediments honestly recorded much information about climatic environmental changes of drainage area. Especially the lake sediments with bigger deposit velocity are well proxies for high-resolution environmental changes researches. Based on the analyses of granularity and elements characteristics, this paper discussed climatic environmental changes of the Bojianghaizi Lake （located at northern Mu Us Desert） since 1876. It is indicated reliably by the results that this area had undergone several cold-warm and dry-humid changes during the past 130 years： before 1932, climate was dry and cold （1876-1888, climate was warm and dry with low water level, and the temperature had descending trends; 1888-1908, climate was humid and colder than the previous period; 1908-1932, climate was dry and unstable, and serious drought at 1917 and 1924 1932） ;1932-1962, climate was warm and humid with cold trends; 1962 1976, climate was unstable and fluctuated frequently with large scope; after 1976, climate was warm and humid with dry trends, especially since 1990 climate fluctuated with larger scope and presented warm-dry trends.
中文关键词	毛乌素沙漠 ; 泊江海子 ; 湖泊沉积 ; 气候环境变化
英文关键词	Mu Us Desert Bojianghaizi Lake lake sediments climatic environmental changes
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:3215789
来源机构	兰州大学 ; 北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223105
作者单位	1.北京师范大学, 地表过程与资源生态国家重点实验室, 北京 100875, 中国; 2.兰州大学中德干旱环境联合研究中心, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	鲁瑞洁,夏虹,强明瑞,等. 近130a来毛乌素沙漠北部泊江海子湖泊沉积记录的气候环境变化[J]. 兰州大学, 北京师范大学,2008,28(1):44-49.
APA	鲁瑞洁,夏虹,强明瑞,&张登山.(2008).近130a来毛乌素沙漠北部泊江海子湖泊沉积记录的气候环境变化.,28(1),44-49.
MLA	鲁瑞洁,et al."近130a来毛乌素沙漠北部泊江海子湖泊沉积记录的气候环境变化".28.1(2008):44-49.