scholarly journals Change of the forest cover on the slopes oriented towards Lake Imandra lake under industrial pollution

2016 ◽  
pp. 3
Author(s):  
Татьяна Владимировна Черненькова ◽  
Наталья Евгеньевна Королева ◽  
Елена Викторовна Басова ◽  
Евгений Александрович Боровичев ◽  
Алексей Валерьевич Мелехин ◽  
...  
Keyword(s):  
Industrial Pollution ◽  
Forest Cover ◽  
Imandra Lake ◽  
Lake Imandra

scholarly journals Biomass and mortmass of woody vegetation in metal-contaminated areas (Southern Urals, Russia)

2021 ◽  
Vol 9 ◽  
Author(s):  
Igor Bergman ◽  
Alexey Nesterkov
Keyword(s):  
Industrial Pollution ◽  
Forest Cover ◽  
Southern Urals ◽  
Copper Smelter ◽  
Forest Stand ◽  
Household Waste ◽  
Woody Vegetation ◽  
Global Changes ◽  
The Southern Urals ◽  
Dead Tree

Since the mid-2000s, long-term monitoring of various components of natural ecosystems under conditions of industrial pollution has been carried out in the Southern Urals. As a part of these monitoring programmes, the data on various components of biota in different biotopes, collected with different methods and in different time intervals, continue to be gathered. In addition, data collected through these monitoring programmes can also be used to study the local biodiversity of non-polluted areas. In 2012, in the vicinity of the Karabash Copper Smelter, a study of communities of small mammals was carried out, considering the heterogeneity of their habitats. Within the framework of this project, we presented a detailed description of the state of woody vegetation in the study area. The dataset (available from the GBIF network at https://www.gbif.org/dataset/61384edd-2d0a-437b-8cf0-ff4d2dfcc0da) includes the results of an assessment of the woody vegetation biomass at seven habitats (pine, birch and floodplain forests, reed swamp, sparse birch stand, marshy meadow and dump of household waste) of areas with different levels of industrial pollution in the vicinities of the Karabash, the Southern Urals. Karabash Copper Smelter (KCS) is one of Russia’s most significant point polluters; the main components of its emissions are heavy metals, dust and sulphur dioxide. Parameters of woody vegetation (diameter at breast height, diameter at root collar level and biomass) were estimated for seven forest elements (forest stand, subcanopy (undergrowth and underwood), half-dead tree of a forest stand and four types of coarse woody debris (downed bole, fragment of downed bole, standing dead tree and stump)) at 41 sampling plots (20 at unpolluted and 21 at polluted areas) and 165 subplots (81 and 84, respectively). The dataset includes 411 sampling events (estimation events of the forest elements at sampling plots and subplots), corresponding to 5786 occurrences (estimations of the woody vegetation components) observed during July 2012. For most woody vegetation components (72%), an estimate of the above-ground phytomass is given. For each sampling event, information on the presence or absence of woody vegetation species at the considered habitats is provided (a total of 1479 occurrences with status "absent"). The dataset can be used for environmental monitoring, sustainable forest management, modelling forest productivity considering global changes, studying the structure and biodiversity of forest cover and assessing forests’ carbon-sequestration capacity. In addition, the dataset provides information about different forest ecosystems under the influence of strong industrial pollution.

scholarly journals Lake Imandra depression in the Late Glacial and early Holocene (Kola Peninsula, north-western Russia)

Baltica ◽  
2020 ◽  
Vol 33 (2) ◽  
pp. 177-190
Author(s):  
Olga Korsakova ◽  
Dmitry Tolstobrov ◽  
Svetlana Nikolaeva ◽  
Vasily Kolka ◽  
Alyona Tolstobrova
Keyword(s):  
Fresh Water ◽  
Water Reservoir ◽  
Early Holocene ◽  
Lake Basin ◽  
Small Lakes ◽  
14C Dating ◽  
Coastal Morphology ◽  
Western Lake ◽  
Imandra Lake ◽  
Lake Imandra

The paper summarizes the evidence of litho-, biostratigraphy and 14C dating of sedimentary sequences studied in natural outcrops and bottom deposits in small lakes, as well as data on coastal morphology in the depressions of Ekostrovskaya and Babinskaya Imandra, the southern sub-basins of Lake Imandra. Lithological, 14C and diatom data suggest that the brackish-water reservoir followed by the fresh-water one existed in the Ekostrovskaya Imandra depression during the Younger Dryas chronozone prior to 11,400cal. yr BP. The Fennoscandian Ice Sheet margin is assumed to have been located in the Lake Imandra basin, covering western Babinskaya Imandra earlier than c. 10,250 cal. yr BP. The early Holocene c. 11,400–8,500 cal. yr BP was marked by a significant westward retreat of the ice margin in the western Lake Imandra depression and adjacent areas, and an extensive fresh-water pra-Imandra Lake basin was formed there. At the end of the Preboreal, earlier than c. 9,210–8,500 cal. yr BP, the pra-Imandra Lake coastline was at least 16–18 m higher than the modern one, as can be assumed according to coastal morphology and lithostratigraphical data. The coastline of that reservoir changed, water square slightly reduced, and isolated small lakes emerged on coasts during the early Holocene.

scholarly journals Long-term hydrochemical changes and “Harmful Algal Blooms” in the Arctic Lake Imandra

2021 ◽  
Vol 11 (3) ◽  
pp. 327-340
Author(s):  
N.A. Kashulin ◽  
◽  
A.A. Bekkelund ◽  
V.A. Dauvalter ◽  
◽  
...  
Keyword(s):  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Total Content ◽  
Water Salinity ◽  
The Arctic ◽  
Murmansk Region ◽  
Imandra Lake ◽  
Lake Imandra

The large arctic Imandra Lake is located in the industrial Murmansk region, Russia. Since the 2000s it has regular Harmful Algal Blooms. Significant changes in hydrochemical indices were recorded in 1985—2017. The ratio of the main ions has changed, the pH and alkalinity have increased. The indicators of water salinity, the total content of P and N, and their mineral forms have decreased. The concentrations of Zn, Cu, Ni и SO42– have decreased as well. The decrease trends in the content of macronutrients in waters contradict traditional concepts and the role of mineral P and N in the development of HAB. This indicates more complex mechanisms of flowering in this arctic reservoir, which are being discussed.

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