scholarly journals Common Features of the Euthrophic Bog Waters Hydro/chemical Regime Formation

Author(s):  

Economic development of the euphrophic bogs demands a lot of knowledge on the main features of their waters hydro/chemical regime and chemical composition. The objective of the study is detection of the main regularities of the euphrophic bogs regime and water chemical composition formation. On the basis of many-year complex investigations of Tarman, Listvyansk, and Baksinsk euphrophic bogs according to the methods accepted in the Rosgidromet system it has been found that the bog waters main ions regime depends on the bogs hydro/meteorological regime and is caused by the groundwater and atmospheric precipitations chemical composition. The main hydro/meteorological factors that influence the principal components of the bog waters chemical composition are the water level regime, evaporation and bog frost penetration. It has been shown that euthrophic bogs in the different geo/morphological and hydro/geological bedding conditions have their own specific features both in individual hydrological regime phases and in waters chemical composition. These specific features predetermine some differences in the waters chemical composition of the similar micro/landscapes of the bog tracks under study. The study outcomes enable to assess the possibilities of the bog waters resources for practical purposes, as well as their components impact upon building structures and line structures located within the bog zone.

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1227
Author(s):  
Francesco Ulloa-Cedamanos ◽  
Jean-Luc Probst ◽  
Stephane Binet ◽  
Thierry Camboulive ◽  
Virginie Payre-Suc ◽  
...  

The long-term trends and seasonal patterns of stream water chemical composition in a small remote forested karst catchment, were investigated from 1978 to 2018. Calcium, magnesium, and bicarbonates, the dominant ions, increased over the period together with temperature, while sulfates decreased. Carbonate and sulfate mineral dissolution was the main source of these elements. These trends and the seasonal opposite patterns of discharge vs. temperature, calcite saturation index vs. pCO2 and bicarbonate vs. sulfates, suggested the influence of discharge, of reduced long-range atmospheric pollution, and of increasing air temperature on biological activity and carbonate dissolution. Furthermore, the hydrological regime controlled the seasonal stream water chemical composition and fluxes by: (i) a dilution during the high discharge period, (ii) a change in the contribution rate of the waters draining different lithological areas in the catchment, e.g., the increased sulfates to bicarbonates ratio during summer low flows, with a maximum alkalinity decrease of 24%, and (iii) a “piston” and a “flushing” effects of dissolved elements stored in soils and epikarst with the first autumn heavy rains. Long-term stream water hydrochemical surveys of karst system have proved to be powerful indicators of biogeochemical processes, water sources and pathways under variable natural and anthropogenic environmental pressure conditions.


2019 ◽  
Vol 12 (9-10) ◽  
pp. 38-48
Author(s):  
V. I. Batuev ◽  
I. L. Kalyuzhny

The development of the European North of Russia, where flat and high-hummocky bog complexes are spread, requires information on the processes of formation of their hydrological regime and freezing of this territory. For the first time, based on observational data, for the period from 1993 to 2013, characteristics of the hydrological regime and freezing of hummocky bogs in Northern European Russia are presented, the case study of the Lovozerskoye bog. The observations were carried out in accordance with the unified methods, approved for the specialized network of Roshydromet bog stations. The regularities of the formation of the hydrological regime of hummocky bogs have been revealed: bog water level drops dramatically from the beginning of freezing to the end of March, rises during snow melt period, slightly drops in summer and rises in autumn. The main feature of hummocky bogs is permafrost, which determines their specific structure. It has been discovered that gravitation snowmelt and liquid precipitation waters relatively quickly run down the hummocks over the frozen layer into hollows between them. Levels of bog waters on the hummocks are absent for a longer period of time. In spring, the amplitude of water level rise in swamplands is on average 60–80 cm. Air temperature and insulation properties of snow are the main factors that influence the bog freezing. Hummocks freeze out as deep as 63–65 cm, which corresponds to the depth of their seasonal thawing in the warm period of the year, and adjoin the permafrost. The greatest depth of freezing of the swamplands is 82 – 87 cm, with an average of 68 cm. The frozen layer at swamplands thaws out from both its upper and bottom sides. The melting of the frozen layer at hummocks occurs only from the bog surface with an average intensity of 0,51 cm/day.


CATENA ◽  
2019 ◽  
Vol 173 ◽  
pp. 414-423 ◽  
Author(s):  
M. Fernández-Martínez ◽  
O. Margalef ◽  
F. Sayol ◽  
D. Asensio ◽  
G. Bagaria ◽  
...  

Author(s):  

Statistical indicators of many-year observations of the Cherek-Bezengiyskiy River water chemical composition within the boundaries of Kabardin-Balkar State High-mountain Natural Reserve have been presented. The research results can be used for formation of the summarized systematic information needed for development of regional or basin water quality indicators.


2014 ◽  
Vol 4 (2) ◽  
pp. 22
Author(s):  
Alif Noor Anna

The information of rain water quality in Indonesia is rarely recorded, where as it is important for the region in which the source of fresh water is unavailable. Rain water composition is mostly ascertained by water vapour and ions which are available in the atmosphere during vapouration. In fact the rain water composition of coast region is sea water like and rain water chemical composition of urban are then become HNO3 and HSO4, while rain water of active vulcanic region eventuality has a high sulphur-wombed so that its quality sulphuric-acid. For the region in which the source of fresh water is unavailable the rain water is previously sterilized. Sterilization is consecutively done by adding salts, killing all bacteria, spores, and filltering.


Author(s):  

Analysis of the hydro/chemical regime and spatial regularities of the water composition changes in the Vasyugan Bog North-Eastern part between the Bakchar and Iksa rivers is presented. It has been noted that the chemical composition transformation with water class, group and type during the year is a special feature of the high bog hydro/chemical regime. Within the bog limits three clusters have been identified by bog waters chemical composition characteristics on the basis of the cluster analysis. Reliable differences between the tree clusters have been determined by the mineralization amount, Са2+, Mg2+, Feобщ, NH4 +, NO3 - ions, humic and fulvene acids, Сорг and СО2 content. Analysis of the seasonal indices has demonstrated that during the vegetation period two significant maximal peaks of the bog water seasonal wave of chemical composition occur, namely in March and September. It has been noted that that the near-ground air temperature sum increase more than 10 ºС is accompanied by the pH increase in the high bog water, increase of СО2, ammonia, sulphate, iron ions, and organic matter (humic and fulvene acids, Сорг).


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