泥炭记录的晚全新世大气铅沉降及其环境意义

doi:10.13249/j.cnki.sgs.2015.08.1014

地理科学 ›› 2015, Vol. 35 ›› Issue (8): 1014-1020.doi: 10.13249/j.cnki.sgs.2015.08.1014

泥炭记录的晚全新世大气铅沉降及其环境意义

赵红艳^1,^2,³(), 杨倩楠³, 王爱霞⁴, 常帅³, 杨露³

1. 东北师范大学国家环境保护湿地生态与植被恢复重点实验室,吉林长春 130024
2.东北师范大学植被生态科学教育部重点实验室,吉林长春 130024
3.东北师范大学地理科学学院,吉林长春 130024
4.东北师范大学化学学院,吉林长春 130024

收稿日期:2014-01-20 修回日期:2014-06-05 出版日期:2015-08-20 发布日期:2015-08-20
作者简介:
作者简介：赵红艳（1969-）,女,吉林榆树人,博士,副教授,主要从事自然地理与湿地生态研究。E-mail:hyzhao@nenu.edu.cn
基金资助:
国家自然科学基金项目（40971036、41001121、41471165）、吉林省自然科学基金项目(20130101081JC) 和国家级大学生创新创业训练计划项目（2013102000061）资助

Atmospheric Lead Deposition Recorded in Two Types of Mires and Its Implication for Palaeoenvironment from Dunhua Basin, Jilin Province in China

Hong-yan ZHAO^1,^2,³(), Qian-nan YANG³, Ai-xia WANG⁴, Shuai CHANG³, Lu YANG³

1.State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration,Northeast Normal University,Changchun, Jilin 130024,China
2. Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun, Jilin 130024, China
3. School of Geographical Science, Northeast Normal University, Changchun, Jilin 130024, China
4. Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China

Received:2014-01-20 Revised:2014-06-05 Online:2015-08-20 Published:2015-08-20

摘要/Abstract

摘要：

选择长白山地区2种不同类型的泥炭沼泽,进行了典型剖面的大气铅沉降研究。植物残体和泥炭性质表明老白山泥炭地已经发育到贫营养阶段,而大桥泥炭地还处于富营养状态。两地泥炭记录的总铅含量和沉降速率与中国其他地区在同一个数量级上。老白山泥炭记录的大气铅在总铅中占主导地位,大气铅与富集因子呈明显的正相关（r=0.874,n=16,p<0.01）,且在16世纪中叶、18世纪初和20世纪出现峰值。大桥泥炭记录的铅可能存在再迁移和再沉降现象,但是相对较弱,因此,它也可以被用来重建当时的大气沉降。

关键词: 大气沉降, 铅污染, 贫营养泥炭, 富营养, 小冰期

Abstract:

Two peat profiles respectively form Laobaishan mire (44°06′N, 128°03′E) and Daqiao mire (43°17′N, 128°22′E) from Changbai Mountains in northeast China, were investigated to reconstruct atmospheric deposition since 2120 B.P., and decide whether Pb inventories in minerotrophic mires are mobile. The plant macrofossil types and characteristics of peat samples indicate Laobaishan mire has developed into ombrotrophic bog, and Daqiao mire is still in minerotrophic status. The largest concentration, accumulation rates of Pb in Laobaishan and Daqiao are 22.23-38.46 ug/g and 8.8-16.33 mg/(m²?y) respectively, and are in the same order of magnitude as the other places in the world. A positive correlation between lithogenic Pb and ash content (r=0.799,n=16,p<0.01) in Laobaishan profile indicate lithogenic Pb mainly from rock weathering underlying peat deposits. Atmospheric Pb is dominant in total Pb deposition that suggests cumulative Pb is most from atmospheric deposition. High enrichment factors of Pb in Laobaishan profile occurred in the middle of 16th century, the early of 18th century and 20th century. They are in good agreement with little ice age during the middle of sixteen centuries, volcano eruption happened in Changbai Mountains in 1702 and human activities in the 20th century. Pb content and accumulation rate recorded in Daqiao mires are the most value in the downmost layer. This corresponds with atmospheric soil dust flux very well. Moreover, the Pb enrichment factor is the greatest at the subsurface.

Key words: atmospheric deposition, Pb pollution, ombrotrophic, minerotrophic, little ice age

中图分类号:

P531

赵红艳, 杨倩楠, 王爱霞, 常帅, 杨露. 泥炭记录的晚全新世大气铅沉降及其环境意义[J]. 地理科学, 2015, 35(8): 1014-1020.

Hong-yan ZHAO, Qian-nan YANG, Ai-xia WANG, Shuai CHANG, Lu YANG. Atmospheric Lead Deposition Recorded in Two Types of Mires and Its Implication for Palaeoenvironment from Dunhua Basin, Jilin Province in China[J]. SCIENTIA GEOGRAPHICA SINICA, 2015, 35(8): 1014-1020.

图/表 6

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参考文献 28

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位置	平均含量（ug/g）	含量范围（ug/g）	沉降速率[mg/(m²?y)]	累积时间	养分状况	出处
老白山剖面	21.87	9.87~38.46	1.1~8.8	1440~2002年	贫营养	本研究
大桥剖面	9.42	2.55~22.23	0.18~16.33	2120 B.P.以来	富营养	本研究
小龙湾		20~160		1875~2000年	湖相沉积	Panizzo^[14]
汤洪岭	10.63	2~22.4	0.39~6.29	5200B.P.以来	贫营养	汤顺林^[15]
摩天岭MP1		14~110	<68.9	1873~2008年	贫营养	Bao^[16]
摩天岭MP2		29~262	<138.9	1838~2008年	贫营养	Bao^[16]
青藏高原		2.96~21.58	0.06~3.52	9500B.P.以来	贫营养	Ferrat ^[17]
瑞士Jura 山脉		2.3~85.5		2110B.P.以来	贫营养	Shotyk^[24]
瑞士Jura 山脉		15.4~29.6		自2700B.P.	富营养	Shotyk^[25]
德国				3300~1300 B.C.	贫营养	Roux^[10]
西班牙		<3~118		自3000B.P.	贫营养	Gallego^[9]
比利时		<660（孔1） <930（孔2）	<55（孔1） <140（孔2）	550B.P.以来	贫营养	Allan^[11]

泥炭记录的晚全新世大气铅沉降及其环境意义

Atmospheric Lead Deposition Recorded in Two Types of Mires and Its Implication for Palaeoenvironment from Dunhua Basin, Jilin Province in China

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