INTEGRAL ASSESSMENT OF ANTHROPOGENIC PRESSURE ON WATER BODIES IN THE LAKE BAIKAL BASIN

Author(s):  
Irina Ulzetueva ◽  
Bair Gomboev ◽  
Daba Zhamyanov ◽  
Valentin Batomunkuev ◽  
Zorikto Banzaraktsaev

The integrated assessment of the ecological state of the main rivers of the lake Baikal basin - Verkhnyaya Angara, Tyya, Barguzin, Selenga, Snezhnaya, Bolshaya Rechka, Khilok, Chikoy is based on the assessment of the variability of the basin system under the influence of two groups of indicators: 1) Direct (immediate) impact - the volume of water intake and wastewater discharge, water use and sequential water supply. Assessment of the impact on the state of the above-listed rivers basins from wastewater was performed using the algorithm proposed by A. Korolev et al. (2007). 2) Indirect (mediate) impact - indicators of areal and linear-network impacts on the catchment area. Based on the calculation of the integral anthropogenic pressure on the territory of the above-listed river basins, only the Selenga river experiences an “average” anthropogenic load. On the territory of most river basins, the anthropogenic load is “lowered” and “low”.

2018 ◽  
Vol 931 (1) ◽  
pp. 32-38
Author(s):  
T.B. Dashpilov

To create transport maps, we need detailed mapping of all objects, processes, phenomena, and interactions of the transport complex. For these purposes a semantic classification of cartographic signs transport systems of the region was developed. We analyzed a large number of maps of various geographical atlases of different territorial level. This semantic classification of transport maps ordered the structure of their thematic layers and the system of transport mapping in general. To display the impact of transport on the environment by several semantic parameters were selected. They characterize directly the transport complex and its separate indicators of impact of transport on the environment. A map of transport impact on the environment within the Lake Baikal basin was created. Using the maps, as well as other literary and statistical sources, we analyzed the transport impact within the Baikal basin. This analysis led to the conclusion that the greatest pollution of Lake Baikal basin comes from road and water transportation means.


Author(s):  

The advantages of the basin approach in the study of regional water use are justified in the article, water management areas according to the water management division of the Russian Federation were used as territorial units of the study. A universal methodic for the integrated assessment of the region’s water management activities was developed, based on geo/information technology. Stages of the study are described, including water management of the area, ranking based on the total anthropogenic load on water bodies and river basins, zoning of the territory to optimize the target use of water resources. The GIS of water use of the Lake Baikal basin is developed on the basis of governmental statistics, mass media examples of organization of water management data, as well as the results of automated mapping of water bodies. The results of water management regionalization are presented and spatial regularities of water use organization in the investigated territory are revealed. The ranking of river basins and water bodies according to the degree of anthropogenic load has been carried out, ecological problems of the region have been identified and their spatial localization has been fixed, the exact locations of pollution sources and their influence on water management have been established. Zoning of the territory under study for targeted use of water resources was proposed, five unique zones were identified, differentiated according to the special conditions for the formation of water resources and the specific use of water bodies, as well as the nature and intensity of the current and forecasted water use. A set of measures to optimize water use within the zones of targeted use of water resources is proposed.


Author(s):  
E. P. Bessolitsyna ◽  

The paper presents a landscape-ecological analysis of the mesopopulation structure of the geosystems in the Baikal region. The regularities of changes in the quantitative characteristics and taxonomic diversity of invertebrate communities in the landscape-ecological range under the influence of natural and anthropogenic factors at different levels of the organization of geographical space are considered. The data were obtained as a result of a detailed study of the quantitative characteristics of invertebrate communities in the key polygons of the taiga, mountain-taiga and steppe geosystems of the Lake Baikal basin. Numerous cartographic materials, information about the soil cover and the state of vegetation are analyzed, data on the heat supply and moisture supply of soils are taken into account. The main trend of changing the diversity of pedobiont communities is a decrease of species number in the gradient of increasing aridity of the climate, increasing hypothermia and anthropogenic pressure. Based on the data obtained, the map “Taxonomic diversity of soil-biotic communities in the geosystems of the Lake Baikal basin” is presented. Conservation of biological diversity is considered as one of the most important conditions for sustainable development and rational use of natural resources.


2018 ◽  
Vol 932 (2) ◽  
pp. 22-35
Author(s):  
S.B. Kuzmin ◽  
D.A. Lopatkin

Mapping of hazardous geomorphological processes in the Baikal Region and its ecological and geomorphological zoning was carried out on the basis of the improved method, developed earlier by the authors. Baikal Region includes the subjects of the Russian Federation in the South Siberia and Republic of Mongolia within the boundaries of the Lake Baikal Basin. The basis of zoning are


2020 ◽  
Vol 495 (1) ◽  
pp. 858-861
Author(s):  
V. N. Sinyukovich ◽  
V. G. Shiretorova ◽  
I. V. Tomberg ◽  
L. M. Sorokovikova ◽  
L. D. Radnaeva ◽  
...  

2017 ◽  
Vol 17 (7) ◽  
pp. 1945-1949 ◽  
Author(s):  
Nikolay Kasimov ◽  
Daniel Karthe ◽  
Sergey Chalov

Climate ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 57 ◽  
Author(s):  
Alexander N. Safronov

The vegetation changes in the area of the Russian part of the Lake Baikal water basin for the period 2010–2018 were investigated using MCD12C1 land cover. The decline in swamp systems area began in 2012 and continued until 2015, after which it partially recovered during the heavy rain season in 2018. During the period of 2010–2018, the area covered by forests did not exceed 20.3% of the Baikal basin of the total portion of the Baikal basin under study. Deforestation began in 2013 and continued until 2017. Over 2013–2018, the forest level decreased by 12.1% compared to the forest state in 2013. The analysis of summer rainfalls and aridity indexes was performed by using CRU TS and GPCC climatic datasets. It is shown that the interannual variations of precipitation and aridity changes are determined by the variability of the global circulation of moist air masses. The MCD64A1 (burned area) and MCD14ML (active fires) MODIS products were used for investigation of the influence of wildfires on vegetation changes. The spatial hotspot distributions and burned areas in general correspond to aridity zones, but they cannot explain the 20-fold increase in the number of wildfires. Most of the hotspot locations are away from settlements, roads, and loggings, in difficult-to-access mountainous areas, as well as in the low-inhabited areas of Siberia. We assume that the nature of such ignitions includes dry thunderstorms, pyrocumulus lightning, or remote impact.


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