Cs-137 dating of lacustrine sediments and human impacts on Dalian Lake, Qinghai Province, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	Cs-137 dating of lacustrine sediments and human impacts on Dalian Lake, Qinghai Province, China
	Yan, P 1,2; Shi, PJ 1,2; Gao, SY 1,2; Chen, L 1,2; Zhang, XB3 ; Bai, LX 4
刊名	CATENA
	2002-04-02
卷号	47 期号:2 页码:91-99
关键词	Cs-137 technique Dalian Lake sedimentation rate aeolian sand human activities
ISSN号	0341-8162
通讯作者	Yan, P
英文摘要	Cs-137 and grain-size analyses indicate the total amounts of Cs-137 deposited by wind and water in the Dalian Lake of Gonghe Basin, Qinghai Province. The vertical profile of Cs-137 in the lacustrine sediments shows three Cs-137 activity peaks and one trough: the main peak corresponds to the global Cs-137 fallout in 1963: the two secondary peaks correspond to the leakage of the Chernobyl reactor in 1986 and complete desiccation of the lake in 1994. The trough corresponds to aeolian deposition caused by extensive reclamation of farmland in late 1980s and early 1990s. The Cs-137 dating was used to evaluate sedimentation rates in Dalian Lake since 1963. They are divided into three periods: two with slow deposition (1963-1986 and 1994-1998), and one with rapid deposition (19861994). Cs-137 seems to have the same potential for indicating environmental changes and human interference in the and and semiarid regions as in humid regions. (C) 2002 Elsevier Science B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
研究领域[WOS]	Geology ; Agriculture ; Water Resources
关键词[WOS]	RADIOACTIVE FALLOUT CESIUM-137 ; SOIL REDISTRIBUTION ; SOUTHWEST NIGER ; EROSION ; RATES
收录类别	SCI
语种	英语
WOS记录号	WOS:000174404400001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/10588]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Beijing Normal Univ, Minist Educ China, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China 2.Beijing Normal Univ, China Ctr Desert Res, Beijing 100875, Peoples R China 3.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 6410041, Peoples R China
推荐引用方式 GB/T 7714	Yan, P,Shi, PJ,Gao, SY,et al. Cs-137 dating of lacustrine sediments and human impacts on Dalian Lake, Qinghai Province, China[J]. CATENA,2002,47(2):91-99.
APA	Yan, P,Shi, PJ,Gao, SY,Chen, L,Zhang, XB,&Bai, LX.(2002).Cs-137 dating of lacustrine sediments and human impacts on Dalian Lake, Qinghai Province, China.CATENA,47(2),91-99.
MLA	Yan, P,et al."Cs-137 dating of lacustrine sediments and human impacts on Dalian Lake, Qinghai Province, China".CATENA 47.2(2002):91-99.