globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2013181117
论文题名:
Changing nutrient cycling in Lake Baikal; the world’s oldest lake
作者: Swann G.E.A.; Panizzo V.N.; Piccolroaz S.; Pashley V.; Horstwood M.S.A.; Roberts S.; Vologina E.; Piotrowska N.; Sturm M.; Zhdanov A.; Granin N.; Norman C.; McGowan S.; Mackay A.W.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:44
起始页码: 27211
结束页码: 27217
语种: 英语
英文关键词: Climate ; Ecosystem ; Endemic ; Limnology ; Siberia
Scopus关键词: ice ; lake water ; silicon ; aquatic environment ; Article ; biogeochemical cycling ; chemical composition ; diatom ; environmental factor ; environmental impact ; environmental stress ; isotope analysis ; lake ; lake basin ; limnology ; nonhuman ; nutrient cycling ; nutrient supply ; priority journal ; sewage ; wind
英文摘要: Lake Baikal, lying in a rift zone in southeastern Siberia, is the world’s oldest, deepest, and most voluminous lake that began to form over 30 million years ago. Cited as the “most outstanding example of a freshwater ecosystem” and designated a World Heritage Site in 1996 due to its high level of endemicity, the lake and its ecosystem have become increasingly threatened by both climate change and anthropogenic disturbance. Here, we present a record of nutrient cycling in the lake, derived from the silicon isotope composition of diatoms, which dominate aquatic primary productivity. Using historical records from the region, we assess the extent to which natural and anthropogenic factors have altered biogeochemical cycling in the lake over the last 2,000 y. We show that rates of nutrient supply from deep waters to the photic zone have dramatically increased since the mid-19th century in response to changing wind dynamics, reduced ice cover, and their associated impact on limnological processes in the lake. With stressors linked to untreated sewage and catchment development also now impacting the near-shore region of Lake Baikal, the resilience of the lake’s highly endemic ecosystem to ongoing and future disturbance is increasingly uncertain. © 2020 National Academy of Sciences. All rights reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163967
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Swann, G.E.A., School of Geography, University of Nottingham, Nottingham, NG7 2RD, United Kingdom; Panizzo, V.N., School of Geography, University of Nottingham, Nottingham, NG7 2RD, United Kingdom; Piccolroaz, S., Physics of Aquatic Systems Laboratory, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, CH-1015, Switzerland; Pashley, V., Geochronology and Tracers Facility, British Geological Survey, Nottingham, NG12 5GG, United Kingdom; Horstwood, M.S.A., Geochronology and Tracers Facility, British Geological Survey, Nottingham, NG12 5GG, United Kingdom; Roberts, S., Canada Centre for Inland Waters, Environment and Climate Change Canada, Burlington, ON L7S 1A1, Canada; Vologina, E., Institute of Earth’s Crust, Siberian Branch, Russian Academy of Sciences, Irkutsk, 664033, Russian Federation; Piotrowska, N., Division of Geochronology and Environmental Isotopes, Institute of Physics–Centre for Science and Education, Silesian University of Technology, Gliwice, 44-100, Poland; Sturm, M., Eidgenössische Anstalt für Wasserversorgung, Abwasserreinigung und Gewässerschutz, Eidgenössische Technische Hochschule, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, 8600, Switzerland; Zhdanov, A., Limnology Institute, Siberian Branch, Russian Academy of Sciences, Irkutsk, 6644033, Russian Federation; Granin, N., Limnology Institute, Siberian Branch, Russian Academy of Sciences, Irkutsk, 6644033, Russian Federation; Norman, C., School of Geography, University of Nottingham, Nottingham, NG7 2RD, United Kingdom; McGowan, S., School of Geography, University of Nottingham, Nottingham, NG7 2RD, United Kingdom; Mackay, A.W., Environmental Change Research Centre, Department of Geography, University College London, London, WC1E 6BT, United Kingdom

Recommended Citation:
Swann G.E.A.,Panizzo V.N.,Piccolroaz S.,et al. Changing nutrient cycling in Lake Baikal; the world’s oldest lake[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(44)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Swann G.E.A.]'s Articles
[Panizzo V.N.]'s Articles
[Piccolroaz S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Swann G.E.A.]'s Articles
[Panizzo V.N.]'s Articles
[Piccolroaz S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Swann G.E.A.]‘s Articles
[Panizzo V.N.]‘s Articles
[Piccolroaz S.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.