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PL
Potok Bukowy jest prawobrzeżnym dopływem rzeki Brennicy, a zlewnia leży w granicach administracyjnych gminy Brenna. W zlewni potoku o powierzchni 2,76 km2 zidentyfikowano 15 źródeł, w których w 2014 r. wykonano kilka serii pomiarów wydajności. Otrzymane wyniki umożliwiły klasyfikację źródeł pod względem ich wydajności w odniesieniu do wartości podawanych w literaturze. Ponadto uzyskane wyniki umożliwiły określenie wielu parametrów, wśród których można wyróżnić: zmienność wydajności źródeł, stopień uźródłowienia terenu, wydajność źródeł w oparciu o klasyfikację Meinzera oraz na podstawie prowadzonego monitoringu przepływów wody w przekroju zamykającym określono współczynnik drenowania zlewni. Prowadzone równocześnie pomiary przewodności elektrycznej i temperatury wody w umożliwiły wyodrębnienie zbiorników alimentacyjnych dla poszczególnych źródeł.
EN
The Bukowy stream is the right-bank tributary of the Brennica river, and the river catchment is situated within the administrative borders of Brenna commune. In the stream’s 2,76 square kilometer catchment 15 springs have been identified, in which several series of discharge measurements were made in 2014. The results allowed the springs to be classified according to their discharge capacity in relation to the values existing in scientific literature. Moreover, thanks to the results, it was possible to define numerous parameters such as: variability of spring discharge, degree of springs occurrence in a given area, capacity of springs according to Meinzer’s classification; and basing on the monitoring of the water discharge in the cross-section closing the catchment its draining rate was determined. The simultaneous measurements of electrical conductivity and temperature of water allowed to separate maintenance tanks for given springs.
EN
The paper presents the 12-years discharge variations of the three springs located within the Pieniny National Park. The background was the observations of the water table variation in the springs and seasonal measurements of the springs discharge, which made the possibility of calculation of the rating curves. Generally, the Pieniny springs are characterized by low discharge. The mean discharge of the springs studied for the period 2003–2014 was as follows: spring of the Potok pod Wysoki Dział – 1.66 dm3s‒1, spring of the Kotłowy Potok – 0.26 dm3s‒1, seasonal spring of the Kirowy Potok – 0.10 dm3s‒1. Variations of the springs discharge are different due to the fact that particular spring drain separate, and relatively small groundwater reservoir. First of all, the influence of the many-years variation in the sum of atmospheric precipitation as well as the amount of infiltrating meltwater can be observed. Observations with monthly distribution showed the characteristic shift between maximum discharge of the spring and the sum of atmospheric precipitation (about 1 month shift) as well as the thawing period (1–3 months shift). Presumably, during dry seasons the springs have mainly the thawing regime, in the normal (balanced) seasons – the thawing-precipitation regime is dominant, and during the wet season – the precipitation-thawing regime prevails. In the years 2012 and 2013 the sudden decrease of discharge of the Kotłowy Potok and Kirowy Potok springs have been observed which is in well agreement with the hydrogeological drought identified in Poland.
EN
Next to the Tatra Mountains, the Lublin Upland and Roztocze Region are areas featuring the occurrence of the most efficient springs in Poland. They are particularly fed from the Cretaceous aquifer, only in the north-western part of the region also by waters circulating in the sediments of the Palaeocene, and in the boundary zone of Roztocze and Lublin Upland – Neogene. The earlier determination of occurrence of springs commenced in 1998, involving systematic measurements of approximately 70 selected springs. Monitoring measurements covered springs distributed in all of the physico-geographic regions with yield of more than 10 dm3/s. Measurements of the yield and physicochemical properties of water were performed annually in late spring. Data concerning 60 springs were compared for the period 1998–2014. The collected hydrometric materials permit the comparison of the dynamics of the yield and properties of water quality in both temporal and spatial terms. The mean spring yield amounted to 81.2 dm3/s. The mean value from the minimum yield decreased to 59.2 dm3/s, and from maximum increased to 132.7 dm3/s. The coefficient of yield irregularity varied from 1.6 to 5.9 for 90% of the analysed springs. Spring waters were distinguished by moderate mineralisation, reaction approximate to neutral, dominance of HCO3–Ca ions, and very high quality.
PL
Rzadką i interesującą odmianę torfowisk niskich na obszarach pojeziernych stanowią kopulaste torfowiska źródliskowe. Największe z nich wykształciły się na obszarze Równiny Sępopolskej, stanowiącej nieckę wypełnioną iłami zastoiskowymi i glinami moreny dennej. Celem badań było rozpoznanie warunków hydrologicznych i hydrochemicznych torfowiska źródliskowego zasilanego wodami naporowymi. W wyniku badań stwierdzono, iż naturalny wypływ wód naporowych ma wpływ na wykształcenie się specyficznych cech torfowiska źródliskowego niskiego o charakterze kopuł. Odpływ ze źródlisk jest ustabilizowany z tendencją do zmniejszania. Skład chemiczny wód wskazuje na duży udział składników pochodzących z denudacji chemicznej, podczas gdy procesy rozkładu torfu na kopułach odzwierciedlają zmiany stężeń mineralnych form azotu i fosforu. Wskaźnikami intensywnego wietrzenia chemicznego na obszarze źródliskowym są: 3 HCO , Ca2+ i Cl–.
EN
Rare and interesting type of mires on postglacial areas show copulas of artesian spring mires. On the Sepopolska Plain, they appeared in the basin filled with clays of marginal lakes and ground moraine. The aim of the research was to recognize hydrochemical properties of outflow from the artesian spring mire located near Labednik on the Sepopolska Plain. The results of the study showed that artesian springflow is considered to be that which originates from confined aquifiers. The outflow is hydrodynamically stable with the tendency to decreasing. Chemical composition of springflow is made up of elements originated mainly from chemical weathering, whereas biochemical processes of the peat decay in the spring dome are responsible for seasonal changes of mineral forms of nitrogen and phosphorus. The indices of intensive chemical weathering in the spring areas are components considered to be of mainly lithospheric origin as HCO3 –, Ca2+ and Cl–.
EN
The author concentrated on characteristic elements of the Grzmiąca basin geology determining its groundwater outflow. The study area is a small part of the Bzura drainage basin located NE of Łódź, in the northern margin of the Łódź Heights, which were formed during theWartanian glaciation. Large thickness [50–110 m] of the fluvioglacially originated Pleistocene sands and gravels is the most important feature of this basin.. They are surrounded from N,W, and S with clays of the Odranian andWartanian glaciations origin. The clays form a ring coinciding with the watershed zone of the basin. This structure is responsible for the high underground water capacity indicated by the analysis of the groundwater outflow changeability. Below the Pleistocene sediments the basin is sealed by Pliocene silts and clays, in practice precluding percolation of groundwaters below the drainage level. It was confirmed by the equalized water balance for 1996–1997 derived from field studies. High permeability of the surface sedimentsn facilitates rainwater infiltration. It also concerns thawing waters, as shown by a comparing the river groundwater supply after and before thawing [March 1996]. Fluctuations of the groundwater outflow are considerable but at the same time they show a very high runoff trend stability. The Grzmiąca catchment fills up with water for a long time and then is slowly drained. The other feature of the studied basin is its high spring yield which together with intensive linear drainage along the rivers results in a very high percentage of groundwater outflow in the total runoff [88.5%]. This is due to the fact that the springs area and along the main river course there is a thick water-bearing horizon consisting of sands of the Odranian and Wartanian age which are continuous, not separated with clays.
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