干旱区生态环境知识资源中心(Arid): First investigation of desert Lake Hongjiannao, Shannxi Province based on its sediment study

Arid

	First investigation of desert Lake Hongjiannao, Shannxi Province based on its sediment study
	Wang Yong; Shen Ji; Yang Xiangdong; Zhang Enlou; Liu Xingqi; Liu Enfeng; Xiao Xiayun
通讯作者	Wang, Y
来源期刊	ACTA GEOCHIMICA
ISSN	2096-0956
EISSN	2365-7499
出版年	2006
卷号	25 期号:3 页码:285-294
英文摘要	By multi-proxy analysis of grain-size, magnetic susceptibility (MS), Fe/Mn and Rb/Sr ratios, TOC and other chemical elements, environmental changes in the Hongjiannao Lake over the past 80 years were discussed. It is revealed that the lake formed during 1928 - 1952 A. D., characterized by relatively high Fe/Mn ratio and lower Rb/Sr ratio, MS value and lake productivity. During this period sandstorms were prevalent with three extremes occurring in 1936, 1939 and 1941 A. D., respectively. In the short time period of 1952 -1960 A. D., the water level of the lake rose remarkably, as shown by a sharp increase in coarse slit and MS value, as well as the obvious dilution of geochemical element concentrations in lake sediments. The lake expansion is ascribed to both much more rainfall and human activities, especially in about 1958 A. D., when a great deal of channeled-off water from the around swamps was let to inpour into the lake. The lithological characteristics and sediment proxies reflect that the Hongjiannao Lake has already developed into a stable deep lake since the 1960s, characterized by the higher lake productivity and Rb/Sr ratio and lower Fe/Mn ratio. The frequency and intensity of sandstorms have also reduced greatly since the 1960s due to natural conservation activities. The drop of water level since the middle of the 1990s may be related to a warm and dry climate.
英文关键词	lacustrine sediment lake evolution history paleosandstorm characteristics Hongjiannao Lake
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000218250200012
WOS关键词	CLIMATE ; PHOSPHORUS
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328775
作者单位	[Wang Yong; Shen Ji; Yang Xiangdong; Zhang Enlou; Liu Xingqi; Liu Enfeng; Xiao Xiayun] Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Jiangsu, Peoples R China; [Wang Yong] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wang Yong,Shen Ji,Yang Xiangdong,et al. First investigation of desert Lake Hongjiannao, Shannxi Province based on its sediment study[J],2006,25(3):285-294.
APA	Wang Yong.,Shen Ji.,Yang Xiangdong.,Zhang Enlou.,Liu Xingqi.,...&Xiao Xiayun.(2006).First investigation of desert Lake Hongjiannao, Shannxi Province based on its sediment study.ACTA GEOCHIMICA,25(3),285-294.
MLA	Wang Yong,et al."First investigation of desert Lake Hongjiannao, Shannxi Province based on its sediment study".ACTA GEOCHIMICA 25.3(2006):285-294.