干旱区生态环境知识资源中心(Arid): 慕士塔格冰芯中近百年来细菌数量与气候环境变化的关系

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	慕士塔格冰芯中近百年来细菌数量与气候环境变化的关系
其他题名	BACTERIAL ABUNDANCE VARY IN MUZTAGATA ICE CORE AND RESPOND TO CLIMATE AND ENVIRONMENT CHANGE IN THE PAST HUNDRED YEARS
	刘勇勤 1; 姚檀栋 1; 徐柏青 1; 焦念志 2; 骆庭伟 2; 邬光剑 1; 赵华标 1; 沈亮 1; 刘晓波 1
来源期刊	第四纪研究
ISSN	1001-7410
出版年	2013
卷号	33 期号:1 页码:19-25
中文摘要	应用流式细胞技术分析了取自青藏高原西部慕士塔格冰川73m冰芯上部56.27m中细菌的数量变化,在1907-2000年的93年中,细菌年平均数在0.6610~3ml(1982年)至6.9110~3个/ml(1912年)之间变化,平均2.59x10~3个/ml。细菌数量的变化可分为10个不同的阶段,其中6个高峰期和4个低峰期,分别与氧同位素所反映的高温和低温期有较好的对应。冰芯中细菌数量除温度影响外,还受人类活动和陆源粉尘的影响。慕士塔格冰芯中细菌的数量远低于位于高原中部的各拉丹冬冰芯中细菌的数量,且慕士塔格冰芯中细菌数量受陆源粉尘的影响也小于各拉丹冬冰芯,可能是因为慕士塔格冰芯所处荒漠带植物稀少和土壤中细菌数量少所致,慕士塔格和各拉丹冬冰芯中细菌数量的不同反映了冰芯细菌对所处的不同生态环境的响应。
英文摘要	We used flow cytometry to analysed the bacterial abundance in top 56.27m of 73m Muztagata ice core which was drilled from accumulating zone(6300m above sea level; 38°17’N,75°06’E) at Muztagata Glacier located on the western of the Tibetan Plateau. Bacterial abundances of 292 samples obtained from the ice core ranged from 0.43x10~3 cells/ml to 13.32x10~3 cells/ml,with an average value 2.64x10~3 cells/ml. Date of the 56.27m long ice core was determined according black carbon concentration and spanned from 1907 to 2000. The results presents annual bacterial abundances deposited in Muztagata ice core over the past 93 years. The bacterial abundance varied from 0.66x10~3 cells/ml (1982)to 6.91x10~3 cells/ml (1912), with average value 2.59x10~3 cells/ml. Ten periods of bacterial abundance,6 peak periods and 4 low value periods, respond to the high and low temperature stages which indicated by the oxygen isotope ratios, respectively. Bacterial abundance significently correlated to oxygen isotope ratios, Na+, NH~+_4, K~+, Mg~2+, Ca~2+, Cl~-, and NO~-_3 concentration. Temperature, anthropogenic and dust influence the bacterial abundance in the Muztagata ice core. The bacterial abundance in the Muztagata ice core are lower than that in Geladangdong ice core located on the central of the Tibetan Plateau, and are less influence by dust. It is possibely due to the Muztagata ice core located in the barren desert region, while the Geladangodng ice core located in the alpine steppe region. The different bacterial abundance between the two ice cores imply that the bacteria in ice core are sensitively respond to the ecosystem environment where they surround.
中文关键词	慕士塔格 ; 细菌数量 ; 气候环境变化
英文关键词	Muztagata ice core bacterial abundance climate and environment change
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:4756068
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229407
作者单位	1.中国科学院青藏高原研究所, 中国科学院青藏高原环境变化与地表过程重点实验室, 北京 100085, 中国; 2.厦门大学, 近海海洋环境科学国家重点实验室, 厦门, 福建 361005, 中国
推荐引用方式 GB/T 7714	刘勇勤,姚檀栋,徐柏青,等. 慕士塔格冰芯中近百年来细菌数量与气候环境变化的关系[J],2013,33(1):19-25.
APA	刘勇勤.,姚檀栋.,徐柏青.,焦念志.,骆庭伟.,...&刘晓波.(2013).慕士塔格冰芯中近百年来细菌数量与气候环境变化的关系.第四纪研究,33(1),19-25.
MLA	刘勇勤,et al."慕士塔格冰芯中近百年来细菌数量与气候环境变化的关系".第四纪研究 33.1(2013):19-25.