干旱区生态环境知识资源中心(Arid): 柴达木盆地尕海湖区冰消期晚期以来的气候环境演变

Arid

	柴达木盆地尕海湖区冰消期晚期以来的气候环境演变
其他题名	Climatic-environmental evolution in Gahai Lake area of Qaidam Basin since Late Last Deglacial Period
	陈忠 1; 马海州 2; 曹广超 1; 张西营 2; 周笃珺 2; 姚远 1; 谭红兵 2; 高章洪 2
ISSN	0379-1726
出版年	2007
卷号	36 期号:6 页码:578-584
中文摘要	通过对柴达木盆地东部尕海湖沉积物碳酸盐含量、白生碳酸盐碳氧同位素等指标的综合分析，建立了尕海湖地区自冰消期晚期以来的气候环境演变特征。结果表明，冰消期（1271011360a B．P．）气候环境变化较大；进入全新世（自11360a B．P．开始）后，早全新世（11360～8370a B．P．）气候波动明显，整体较为干旱，温度有所回升；中全新世（83703200a B．P．），早期为湿润气候环境，是全新世气候环境最稳定的阶段，晚期气候环境仍较湿润，但环境条件变差；在晚全新世（3200a B．P．以来），早期湖泊水体仍然较淡，但气候环境明显趋向干旱，后期气候变得干旱，气候环境存在波动变化。约1500a B．P．存在一次湿润事件。
英文摘要	Gahai Lake in Qaidam Basin is a closed lake, and is therefore a good site to study paleoclimate. Based on the analyses of carbonate content, oxygen and carbon stable isotope compositions ＂of authicarbonate in Core DG03, which is about 35 m in depth and drilled from Gahai Lake, a climatic-environmental evolution since the late Last Deglacial Period is constructed. The results show that the change in climate and environment was large during the late Last Deglacial Period. During the early Holocene （11360 - 8370 a B. P. ）, it was arid and became warm, but with a distinct fluctuation of climate. The mid-Holocene was wet, with stable climatic environment in the early period （8370-5390 a B.P. ）, and then cool but humid in the late period （5390-3200 a B.P. ）. The late Holocene was dry on the whole, rather humid with dry trend in the early period （3200 - 1950 a B. P. ） and then very arid in the late period. There was a wet event at about 1500 a B.P. during the late Holocene.
中文关键词	冰消期晚期 ; 全新世 ; 气候演化 ; 碳酸盐含量 ; 碳氧同位素 ; 尕海湖
英文关键词	late Last Deglacial Period Holocene climate evolution carbonate content oxygen and carbon isotope Gahai Lake
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:3038718
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220775
作者单位	1.昆明理工大学国土资源工程学院, 昆明, 云南 650093, 中国; 2.中国科学院青海盐湖研究所, 西宁, 青海 810008, 中国
推荐引用方式 GB/T 7714	陈忠,马海州,曹广超,等. 柴达木盆地尕海湖区冰消期晚期以来的气候环境演变[J],2007,36(6):578-584.
APA	陈忠.,马海州.,曹广超.,张西营.,周笃珺.,...&高章洪.(2007).柴达木盆地尕海湖区冰消期晚期以来的气候环境演变.,36(6),578-584.
MLA	陈忠,et al."柴达木盆地尕海湖区冰消期晚期以来的气候环境演变".36.6(2007):578-584.