Paleoecological studies of mountain lakes

被引:10
|
作者
Moiseenko, T. I. [1 ]
Razumovskii, L. V. [2 ]
Gashkina, N. A. [1 ]
Shevchenko, A. V. [3 ]
Razumovskii, V. L. [2 ]
Mashukov, A. S. [3 ]
Khoroshavin, V. Yu [4 ]
机构
[1] Russian Acad Sci, Vernadsky Inst Geochem & Analyt Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Inst Water Problems, Moscow 119333, Russia
[3] Kabardino Balkarian State Univ, Nalchik 360004, Russia
[4] Tyumen State Univ, Tyumen 625003, Russia
关键词
water quality; transboundary transport; atmospheric fallouts; diatom analysis; paleoecological reconstructions; DIATOMIC COMPLEXES; RECONSTRUCTION; TEMPERATURE; SEDIMENTS; HISTORY; RUSSIA; KOLA; PH;
D O I
10.1134/S0097807812050065
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
The results of studying four mountain lakes in different climatic zones (in regions of the Kola North and the Western Caucasus) are given. Original methods of paleoecological reconstruction developed by the authors have been used to characterize the main trends and rates in environmental changes at historical scale (by geochemical composition and diatom complexes in bottom sediment layers). Similar processes of modern water enrichment by metals (especially, Cd and Pb) have been determined in the examined lakes. Trends in changes in acid-base balance in The Kola North lakes since the late XIX century have been identified, reflecting the effect of transboundary transport of acid-forming substances from industrial Europe. Studies of diatom complexes in Caucasian lakes showed a rise in the mean annual temperature of lake water during the XX century supposedly by 1.5A degrees C.
引用
收藏
页码:576 / 589
页数:14
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