干旱区生态环境知识资源中心(Arid): 新疆伊犁河谷晚全新世风沙沉积粒度旋回与气候变化

Arid

	新疆伊犁河谷晚全新世风沙沉积粒度旋回与气候变化
其他题名	Late Holocene Climate Changes Revealed by Grain-size Cycles in Takemukul Desert in Yili of Xinjiang
	李志忠 1; 凌智永 2; 陈秀玲 1; 王少朴 3; 曹相东 3
来源期刊	地理科学
ISSN	1000-0690
出版年	2010
卷号	30 期号:4 页码:613-619
中文摘要	对新疆伊犁河谷可克达拉剖面(TKP)晚全新世沉积粒度参数及其气候意义分析结果表明:总体为植被较好、输沙势较弱的沉积环境. 可以划分为5个气候变化阶段:3.71~3.06 ka B.P.风力由强到弱, 气候暖由干到凉湿;3.06~2.78 ka B.P.风力很强、气候暖干;2.78~2.10 ka B.P.风力较弱, 气候湿润;2.10~0.5 ka B.P.前期风力振荡频繁, 气候较湿润;后期风力减弱、气候冷湿、成壤作用较强;0.50 ka B.P.以来, 以相对冷湿为主, 最近100 a来风力加强、气候趋于暖干. 各阶段起止与全球气候变化基本一致, 但受西风环流传递北高纬大西洋区域气候变化的影响, 各气候期水热组合呈现典型西风带模式特征
英文摘要	This paper discussed the climatic significance of grain-size parameters such as M_z, sigma_1, SK_1, Kg, D/SC, the coarse fraction(＞63mum)and the clay fraction(＜2mum)of 72 samples, which collected from Kekdala section(TKP)in the heart of Takelmukul desert in Yili Valley, Xinjiang.Based on parameters and OSL date data of TKP, five climate evolution stages can be divided since the late Holocene.First stage, from 3.71 kyr BP to 3.06 kyr BP, wind changed from strong to weak, and climate changed from warm-dry to cool-wet.Second stage, from 3.06 kyr BP to 2.78 kyr BP, the grain-size was very coarse, wind was very strong and the climate was warm and dry.Third stage, from 2.78 kyr BP to 2.10 kyr BP, wind was weak, vague soil formed, the climate was wet and little fluctuation.Fourth stage, from 2.10 kyr BP to 0.5 kyr BP, climate was wet, wind was strong-weak alternation and changed frequently in earlier stage;then the wind became weak and climate was cold-wet, and pedogenesis was strong.Last stage, from 0.50 kyr BP to today, the climate was relatively wet as a whole, but wind became stronger and climate was warm-dry in the latest 100 yr.The climate change agreed well with that of global change.Since the late Holocene, due to climatic change of north Atlantic in high latitude, the climate change model of Takelmukul desert has typical westerly characteristics
中文关键词	风沙沉积 ; 粒度参数 ; 气候变化 ; 晚全新世 ; 新疆伊犁
英文关键词	aeolian sediment grain-size parameters climatic change late Holocene Yili of Xinjiang
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:3987964
来源机构	新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224786
作者单位	1.福建师范大学地理科学学院, 福建省亚热带资源与环境重点实验室, 福州, 福建 350007, 中国; 2.福建师范大学地理科学学院, 福州, 福建 350007, 中国; 3.新疆师范大学地理科学与旅游学院, 乌鲁木齐, 新疆 830054, 中国
推荐引用方式 GB/T 7714	李志忠,凌智永,陈秀玲,等. 新疆伊犁河谷晚全新世风沙沉积粒度旋回与气候变化[J]. 新疆师范大学,2010,30(4):613-619.
APA	李志忠,凌智永,陈秀玲,王少朴,&曹相东.(2010).新疆伊犁河谷晚全新世风沙沉积粒度旋回与气候变化.地理科学,30(4),613-619.
MLA	李志忠,et al."新疆伊犁河谷晚全新世风沙沉积粒度旋回与气候变化".地理科学 30.4(2010):613-619.