| DOI: | 10.1016/j.gloplacha.2015.02.005
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| 论文题名: | Evidence of global pollution and recent environmental change in Kamchatka, Russia |
| 作者: | Jones V.J.; Rose N.L.; Self A.E.; Solovieva N.; Yang H.
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| ISSN: | 0921-8432
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| 出版年: | 2014
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| 卷: | 134 | | 起始页码: | 82
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| 结束页码: | 90
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| 语种: | 英语
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| 英文关键词: | Chironomid
; Diatom
; Kamchatka
; Mercury
; Pollution
; Spheroidal carbonaceous particles
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| Scopus关键词: | Catchments
; Ecosystems
; Erosion
; Fuels
; Lakes
; Mercury (metal)
; Runoff
; Anthropogenic contamination
; Chironomid
; Diatom
; Fossil fuel combustion
; Kamchatka
; Precipitation change
; Sediment accumulation
; Spheroidal carbonaceous particles
; Pollution
; anthropogenic effect
; benchmarking
; catchment
; climate change
; combustion
; concentration (composition)
; diatom
; fossil fuel
; global climate
; lake ecosystem
; lead
; mercury (element)
; paleolimnology
; precipitation (chemistry)
; pristine environment
; radiocarbon dating
; temperature effect
; Kamchatka
; Russian Federation
; Bacillariophyta
; Chironomidae
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| 英文摘要: | Kamchatka is a remote, isolated and understudied area and is presumed to be pristine. Here we present the first high-resolution palaeolimnological investigation of the recent past. A short core representing the last 250 years was taken from Olive-backed Lake situated in central Kamchatka. Lead-210 dating revealed that sediment accumulation has increased at the site since the 1960s and may be related to greater rates of catchment erosion associated with wetter winters in the region. Mercury and spheroidal carbonaceous particle (an unambiguous indicator of fossil fuel combustion) concentrations are low but clearly detectable indicating that both regional and global pollution sources are observed at this site. The recent increase in the flux of mercury is more related to catchment sources and catchment erosion than increases from regional or global sources. The diatom and chironomid populations are stable and do not show any statistically significant changes related to either the low levels of pollution, or to temperature and precipitation changes. The lake is not pristine since anthropogenic contamination has occurred but since there have been no significant effects on the flora and fauna the lake can be considered to be unimpacted. Olive-backed Lake may be a suitable reference site to benchmark the natural variability of a lake ecosystem. © 2015. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946545733&doi=10.1016%2fj.gloplacha.2015.02.005&partnerID=40&md5=83768b4ad6e0b7ce27ebc43a8d107e48
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/11338
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| Appears in Collections: | 全球变化的国际研究计划
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作者单位: | Environmental Change Research Centre, University College London, Gower Street, London, United Kingdom
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| Recommended Citation: | |
Jones V.J.,Rose N.L.,Self A.E.,et al. Evidence of global pollution and recent environmental change in Kamchatka, Russia[J],2014-01-01,134.
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