scholarly journals MINERALIZATION OF SMALL RIVERS WATER IN THE AMUR REGION

2021 ◽  
Vol 24 (2-3) ◽  
pp. 52-55
Author(s):  
V.P. Shesterkin ◽  
N.M. Shesterkina
Keyword(s):  
Mineral Water ◽  
Amur Region ◽  
Small Rivers ◽  
Amur Basin ◽  
Karst Development ◽  
River Waters ◽  
Russian Part

The authors have considered mineralization of small rivers water in the Russian part of the Amur basin. The lowest values are observed in water of the rivers, draining intrusions; the highest ones – in the rivers of the areas with ore occurrences and deposits of polymetals, karst development and mineral water outlets. The maximum salinity is characteristic of the river waters in the urbanized territories.

scholarly journals Hydrography and hydrochemistry of the transboundary river Western Bug on the territory of Ukraine

2018 ◽  
Vol 27 (2) ◽  
pp. 232-243 ◽  
Author(s):  
V. Khilchevskyi ◽  
M. Zabokrytska ◽  
N. Sherstyuk
Keyword(s):  
Water Flow ◽  
Methodological Approach ◽  
Small Rivers ◽  
Anthropogenic Factors ◽  
Drainage Basins ◽  
Ion Flow ◽  
River Waters ◽  
Left Tributary ◽  
The City

The analysis of the hydrographic network of the Western Bug basin on the territory of Ukraine. This basin is estimated according to the requirements of the EUWater Framework Directive and has 2,044 rivers. Classification of the rivers of the Western Bug by area of drainage basins has shown the following results: in this basin within Ukraine there is one very big river, in fact this is the Western Bug itself. There are also three large rivers – Poltva, Rata and Luha. There are also 30 medium and 2,010 small rivers (among which 1,966 rivers have a length of less than 10 km). Theleading role of natural factors in the formation of the hydrocarbonate-calcium ion composition of the river waters of the Western Bug basin is determined. The content of the main ions and the salinity of the river waters are distin- guished by a sufficiently clear seasonal character: a decrease in the spring flood and an increase in the low water level (mineralization of the water of the Western Bug – 497-573 mg/l). Mineralization of the Poltva River (the left tributary of the Western Bug), located in the same natural conditions, is significantly different: in the area of the city of Lviv (the upper reaches of the Poltva River), it reaches 784-871 mg/l, and at the estuary of the river (Busk city, at the confluence of the Western Bug) is slightly reduced - 613-670 mg/l, while in the chemical type of water, sulfates and chlorides appear. This situation is explained by the discharge of sewage from the city of Lviv into the Poltva River. In the regime of nutrients, microelements, and also specific pollutants in the water of the West Bug, no general regularities in their seasonal variations were found, which is associated with the significant idiosyncratic character of the influence of anthropogenic factors on the formation of their concentrations. We estimated the balance of substances, both natural and anthropogenic, which are carried out with the waters of the Western Bug from the territory of Ukraine (93%), as well as from the territory of Poland (7%) to the border with Belarus. The comparative methodological approach allowed us to make a quantitative assessment of the significant influence of the Poltva River on the formation of the chemical composition of the water of the Western Bug, especially in its upper part. The share of Poltva's water flow when it flows into the Western Bug is 58% of its water flow. At the same time, the share of the total ion flow is higher – 66%. The share of the discharge of individual principal ions reaches: 76% (Cl-),87% (Mg2 +) and 98% (SO4 2-). For nitrogen, this figure is 68%, for phosphates – up to 80%.

scholarly journals The assessment of chemical and ecological status in the water bodies of Slocene and Age

2020 ◽  
Author(s):  
Kristine Ikauniece ◽  
◽  
Ainis Lagzdins ◽  
Keyword(s):  
Land Use ◽  
Ecological Status ◽  
Late Summer ◽  
Water Bodies ◽  
Small Rivers ◽  
Anthropogenic Factors ◽  
Land Use Patterns ◽  
River Waters ◽  
Late Autumn ◽  
Use Patterns

Small rivers are important in terms of water quantity and quality as these rivers collect and deliver water to medium and large rivers downstream. Due to low water flow and high connectivity to adjacent land, small rivers are highly vulnerable to changes caused by natural and anthropogenic factors. This paper aims to assess the chemical and ecological quality of two small rivers including the Slocene and Age as related to dominant land use cover in the contributing area of these water bodies. The effects of land-use patterns and concentrations of chemical substances TN, NO3 --N, NH4 +-N, TP and PO4 2--P in river waters will be determined. The highest concentration of total nitrogen (TN) as measured in the Slocene river was 21 mg L-1 in spring, while the lowest concentration of TN was 0.86 mg L-1 in autumn. The highest concentration of total phosphorus (TP) in the Slocene river was 0.14 mg L-1 in late summer, the lowest was 0.03 mg L-1 in late autumn. Similarly, in the Age river, the highest concentration of TN was 4.90 mg L-1 in spring, while TN the lowest concentration of TN was 0.51 mg L-1 in late autumn. The highest concentration of TP in the Age river was 0.3 mg L-1 in summer, while the lowest 0.05 mg L-1 in autumn.

scholarly journals Seasonal variation of atmospheric and terrestrial nutrients and their influence on primary production in an oligotrophic coastal system-southeastern Brazil

1999 ◽  
Vol 47 (1) ◽  
pp. 47-57 ◽  
Author(s):  
Elisabete de Santis Braga
Keyword(s):  
Primary Production ◽  
Seasonal Variations ◽  
Atmospheric Precipitation ◽  
Ammonium Phosphate ◽  
Southeastern Brazil ◽  
Small Rivers ◽  
Surface Seawater ◽  
Coastal System ◽  
Nitrogenous Compounds ◽  
River Waters

In an oligotrophic coastal zone, land drainage and atmospheric precipitation can temporarily modify the concentrations of specific dissolved compounds in local surface waters, mainly nutrient salts, setting up conditions for "new" primary production of phytoplankton. The Ubatuba region (23º30'S -45º06'W) is considered an oligo-mesotrophic region subject to a high average annual precipitation (- 2,000 mm). The small rivers flowing into Palmas' Inlet present outflow patterns linked to the precipitation cycle. Rain and river waters show nitrate, nitrite, ammonium, phosphate and silicate concentrations that are very variable often higher than in surface seawater. When one considers the total nutrient inventory ofPalmas' Inlet (total volume) in each sampling period, the relative contribution of nutrients ftom rain water presents the following seasonal variations: DIN (0.1-21.0 %), nitrate (0.06-15.86 %), phosphate (0.01 - 2.75 %), silicate (0.01 - 0.50 %); and the contribution ftom river waters varies within the following limits: DIN (0.02 - 0.36 %); nitrate (0.01 - 0.88 %); phosphate (0.01 - 0.11 %); silicate (0.04 - 4.70 %). Prime production in this oligotrophic zone showed seasonal variations with up to 17.83 mgC m-3 h- in the winter of 1992. When fertilization caused by the South Atlantic Central Water (SACW, T-S characteristics -14ºC and S -35.5 PSU) intrusion occurred in the during of 1991, the average value (all depths) of primary production was significant (7.00 mgC m-3 h- ). The atmospheric source of dissolved nitrogenous compounds is very important to this region on account of the high pluviosity and the fact that this input occurs directly into the surface seawater, and thus to the euphotic zone.

scholarly journals Hydro/chemistry of the «Tumninskiy» Nature Reserve Rivers

2018 ◽  
Author(s):  
Keyword(s):  
Forest Fires ◽  
Nature Reserve ◽  
Chloride Ions ◽  
Small Rivers ◽  
Economic Activities ◽  
River Waters ◽  
Tatar Strait ◽  
Natural Reserve ◽  
Hydrocarbon Gas ◽  
Iron Manganese

Intensification of economic activities (construction of terminal for liquefied hydrocarbon gas, coal and alumina trans-shipment) in the Khabarovsk Kray Vanino Rayon made it necessary to determine the dissolved substances background concentrations in the river waters. The 2015 observations in the Vanino Rayon “Tumninskiy” nature reserve enabled to establish spatial variability of the substances content in the small rivers’ water during the summer-fall low water period. According to the 1966–1982 Rosgidromet data the characteristic of the Tumnin River water chemical composition has been given. Differences in the dissolved substances content in the natural reserve rivers’ waters caused by the territory natural/climatic special features have been revealed. The mineralization low values (<55 mg/dm3) and hydro/carbonate/calcium composition of the Tumnin River and its left-side tributaries’ waters have been shown. The sodium ions and chloride ions higher concentrations (at the average 2.0 mg/dm3 higher) and mineralization values (10 mg/dm3 higher) have been registered in the Tatar Strait coast mainland part rivers’ waters outside the zone of the high/low tides flows influence. Higher concentrations of aluminum, iron, manganese and organic matter have been found in the Tumnin River basin small rivers’ waters draining wetlands in the catchment lower parts. Nitrates nitrogen maximal concentrations have been notices in the Tatar Strait coast continental part rivers’ waters whose catchments had been affected by forest fires. The higher concentrations of silicon and mineral phosphorous have been shown in the small rivers’ waters draining deposits of volcano origin. Dissolved microelements concentrations in the conditions of the river waters low mineralization are comparatively low.

scholarly journals Zonal Features of the Rybinsk Reservoir Basin Small Rivers Chemical Composition

2020 ◽  
Author(s):  
Keyword(s):  
Heavy Metal ◽  
Chemical Composition ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Rybinsk Reservoir ◽  
Small Rivers ◽  
River Waters ◽  
Significant Difference ◽  
Reservoir Basin ◽  
The Rybinsk Reservoir

The work is devoted to the study of the chemical composition of small rivers in the southwestern part of the territory of the Vologda region, which form the river flow of the Rybinsk reservoir basin. The determination of the chemical composition of water in rivers is carried out by generally accepted methods according to standard procedures. A distinctive feature of the river waters of the studied drainage basin is their significant difference in color and color intensity, total iron ion content, and ratio of basic anions. Most of the catchment area of this territory is represented by swamps and numerous lakes, many of them are sources of small and medium length watercourses. A comparative analysis of the ion-salt composition of the waters of rivers shows a certain similarity in the manifestation of the zonal features of the formation of their chemical composition. The composition of the water of the rivers in its salt part is mainly due to the climatic conditions. The waters of the rivers have a hydrocarbonate and sulphate-hydrocarbonate magnesium-calcium composition and relatively low mineralization. Statistical processing of the results of analytical data shows a high correlation in terms of color, permanganate oxidation and chemical oxygen consumption of the investigated water samples. Nutrients represented by the mineral forms of nitrogen and phosphorus in river waters within the studied catchment basin are determined by similar concentrations. A single directivity has been established in the distributions of the contents of heavy metal ions. From the number of heavy metal ions (iron, manganese, aluminum, copper, zinc, nickel, lead, arsenic, chromium, cadmium), which were determined in the analyzed samples, the excess of water quality standards for fishery water bodies was established of by iron and manganese ions. Excess of the established standards of quality of natural waters for other identified ions was not detected.

scholarly journals Quality of surface and underground water at the resorts of the Caucasian Mineral Water regions — problems and solutions

2019 ◽  
Vol 46 (2) ◽  
pp. 178-190
Author(s):  
I. S. Pomelyayko ◽  
A. V. Malkov
Keyword(s):  
Mineral Water ◽  
Underground Water ◽  
Petroleum Products ◽  
Mineral Waters ◽  
Small Rivers ◽  
Metal Compounds ◽  
Production Wells ◽  
Problems And Solutions ◽  
Nitrogen Containing Compounds

The results of long-term environmental monitoring of small rivers in the Caucasian Mineral Waters resorts region are presented. The characteristics of the surface water and groundwater at the resorts are considered. The degree and nature of their pollution were evaluated, and the main causes of water pollution in the region—including heavy-metal compounds, petroleum products, and nitrogen-containing compounds—were identified and analyzed. Data on mineral water from a number of production wells that are not compliant with the requirements of GOST R 54316-2011 are given. The analysis of hydrogeodynamic and hydrogeochemical regimes of exploitation of the Kislovodskoye field, recommendations for improving the quality indicators of the main source of the “Narzan” field are given.

Geochemical differentiation of soils in the Amur Basin (Russian Part)

2013 ◽  
Vol 132 ◽  
pp. 140-148 ◽  
Author(s):  
A.F. Makhinova ◽  
A.N. Makhinov ◽  
V.A. Kuptsova ◽  
V.V. Yermoshin
Keyword(s):  
Amur Basin ◽  
Russian Part
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