LIBRARY.SE is a Swedish open digital library, repository of author's heritage and archive

Register & start to create your original collection of articles, books, research, biographies, photographs, files. It's convenient and free. Click here to register as an author. Share with the world your works!

WHAT TARNS AND ARCTIC LAKES TELL US
by Tatyana MOISEENKO, RAS Corresponding Member, RAS Institute of Water Management Since arctic and high-mountain lakes (tarns) have been spared direct anthropogenic, man-caused effects, we can learn a good deal about global changes of the environment by studying lacustrine bottomset beds (deposits). The pollution of the upper layers of the atmosphere and the cross-border transfer of air masses from industrial centers have touched off substantial ecological changes in these what looks like vestal bodies of water. Paleoecological studies of lakes figure prominently in major international programs: PEP (Pole-Equator-Pole) for Europe and Africa, CAPE (Circumpolar Ambience in Past Epochs), MOLAR (Mountain Lakes Research), LIMPACTs (Limnetic impact of human activity), among others. This approach has proved highly productive. The available fresh data show up the aftereffects of the booming industries in Europe, namely the pollution of high-mountain lakes in the Alps, Tatra Mountains and Pyrenees with oxides, heavy metals and radionuclides. WATER "MEMORY LAYERS" Now why in particular high-mountain and arctic lakes? How do they help diagnose global environmental changes? The thing is that their water catchment area стр. 32 contains no immediate, direct pollutants (say, contributed by industrial or agricultural sources). That is why we can speak of the decisive impact of the cross-border transport of substances on the chemical composition of water, one that is formed by atmospheric precipitation often contaminated by heavy metals, acidiferous toxic organic substances and radionuclides. Such lakes have little, if any, soil and plants capable of retaining or digesting contaminants. Thus actually all polluting agents get into water. The low temperatures as well as the ultrafresh and oligotrophic nature of these bodies of water diminish their self-purification capacity, and hence impurities get accumulated in bottomset beds (deposits). According to MOLAR data, the rate of ... Read more
____________________

This publication was posted on Libmonster in another country. The article seemed interesting to our editor.

Full version: http://libmonster.com/m/articles/view/WHAT-TARNS-AND-ARCTIC-LAKES-TELL-US
Sweden Online · 411 days ago 0 112
Link
Permanent link to this publication:

http://library.se/blogs/entry/WHAT-TARNS-AND-ARCTIC-LAKES-TELL-US


© library.se
Professional Authors' Comments:
Order by: 
Per page: 
 
  • There are no comments yet
Guest comments




Actions
Rate
0 votes

Publisher
Sweden Online
Stockholm, Sweden
26.09.2018 (411 days ago)
 


Who Like this
Likes · Dislikes
 
Empty
ONE WORLD -ONE LIBRARY
Libmonster is a free tool to store the author's heritage. Create your own collection of articles, books, files, multimedia, and share the link with your colleagues and friends. Keep your legacy in one place - on Libmonster. It is practical and convenient.

Libmonster retransmits all saved collections all over the world (open map): in the leading repositories in many countries, social networks and search engines. And remember: it's free. So it was, is and always will be.


Click here to create your own personal collection
WHAT TARNS AND ARCTIC LAKES TELL US
 

Support Forum · Editor-in-chief
Watch out for new publications:

About · News · Reviews · Contacts · For Advertisers · Donate to Libmonster

Swedish Digital Library ® All rights reserved.
2014-2019, LIBRARY.SE is a part of Libmonster, international library network (open map)


LIBMONSTER - INTERNATIONAL LIBRARY NETWORK