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Wyświetlanie 1-15 z 126
Tytuł:
Seasonal Changes in Nitrogen, Phosphorus, BOD and COD Removal in Bystre Wastewater Treatment Plant
Autorzy:
Skoczko, I.
Struk-Sokołowska, J.
Ofman, P.
Powiązania:
https://bibliotekanauki.pl/articles/124271.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment
seasonal changes
dairy wastewater
Opis:
The aim of this study was to determinate seasonal changes in industrial wastewater treatment effectiveness. Studies were carried out in mechanical-biological wastewater treatment plant in Bystre near Giżycko to which inflows mixture of domestic and dairy wastewater. Laboratory studies were carried out by Water and Wastewater Company in Giżycko. For statistical analysis results form years 2014 and 2015 were considered. The scope of statistical analysis includes basic statistical measures including arithmetic mean, median, minimum, maximum and standard deviation. Changes in seasonal treatment effectiveness were shown by Fisher-Snedecore LSD test. Seasonal changes were observed for BOD, COD and total nitrogen removal effectiveness. Total phosphorus was not subjected to that kind of changes.
Źródło:
Journal of Ecological Engineering; 2017, 18, 4; 185-191
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trend of changes in physicochemical state of the river Ner
Autorzy:
Jaskuła, J.
Sojka, M.
Wicher-Dysarz, J.
Dysarz, T.
Powiązania:
https://bibliotekanauki.pl/articles/123543.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
lowland river
water and sewage management
physicochemical status
trends of changes
Opis:
The paper presents the results of changes in the physicochemical status of the water of the river Ner in the Dąbie profile, observed in the period 2000 – 2006. The river Ner flows through the lowland in central part of Poland and its basin area is 1835 km2. The physicochemical status of the river water was evaluated on the basis of 16 parameters characterizing the physical state, oxygen condition, organic pollution, salinity and acidity. The results of a series of analyses performed over 6 years provided the evidence that the extension of sewage system and enlargement and upgrading of the sewage treatment plant have had positive effect on the state of water in the river Ner. The oxygen conditions have improved and the loading with organic substances from insufficiently purified sewage has decreased. The level of the water salinity has increased.
Źródło:
Journal of Ecological Engineering; 2016, 17, 5; 27-34
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cod Fractions Changes During Sewage Treatment With Constructed Wetland
Autorzy:
Smyk, J.
Ignatowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/123349.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
COD
sewage treatment
wetland
Opis:
The purpose of the presented research work was to find out COD fractions in raw wastewater and during treatment with constructed wetland (CW) system. The tests were performed in CW system with average flow of about 4 m3/day. In raw wastewater the highest concentration of fraction in organic suspended solid easy biodegradable (XS – 250 mg O2/l) was observed. The same situation was with dissolved organic easy biodegradable matter (SS – 250 mg O2/l). Lower quantity of non-biodegradable fractions dissolved and in suspended solids were observed (SI – 27 mg O2/l, XI – 83.33 mg O2/l). More than 80% of total COD was as biodegradable fractions (SS + X). After treatment with CW system the highest concentration was observed for dissolved non biodegradable fraction (SI – 27 mg O2/l). Lower concentration was for biodegradable fraction in suspended solid (XS – 3.33 mg O2/l). More than 89% of total COD was in biological non-biodegradable fraction (SI + XI).
Źródło:
Journal of Ecological Engineering; 2015, 16, 3; 43-48
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biogazownia jako element mający pozytywny wpływ na zmiany środowiskowe przestrzeni wiejskich
Biogas plant as an element that has a positive influence on the environmental changes of rural space
Autorzy:
Pawłowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/400506.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biogazownia
przestrzeń wiejska
zmiany środowiskowe
krajobraz kulturowy
biogas plant
rural space
environmental changes
cultural landscape
Opis:
We współczesnym krajobrazie wsi, coraz częstszym elementem instalacji rolniczych jest biogazownia rolnicza. Należy zadać sobie istotne pytanie, czy nowe technologicznie obiekty, jakimi są biogazownie rolnicza o średniej mocy 1 MW, wyszczególnione jako inwestycje mogące znacząco oddziaływać na środowisko, w rozwoju ruralistycznym stają się jego integralną częścią jako nowa forma zabudowy wiejskiej. Nieuchronne dziś zmiany w krajobrazie wiejskim i sposób prowadzenia działalności rolniczej mają zarówno pozytywny jak i negatywny wpływ na środowisko przestrzeni wiejskiej. Biogazownie jako nowe obiekty w rozwijającym się przemyśle wiejskim stanowią niewątpliwe ważny element na drodze pozyskiwania zielonej energii. Najważniejszym dla powodzenia powstania i funkcjonowania biogazowni jest jej lokalizacja, ma to znaczenie nie tylko ze względów ekonomicznych ale również społeczno-środowiskowych jak również krajobrazowych.
In the contemporary rural landscape, an agricultural biogas plant is becoming an increasingly frequent element of agricultural installations. There is a need to ask an important question: is a new technology, such as biogas plants with medium power of 1 MW, listed as investments which can have significant environmental impacts? This question is becoming an integral part of rural space as a new form of village buildings. The inevitable changes in the rural landscape and the way of carrying out farming have both a positive and negative impact on the rural environment. Biogas plants, as new objects in developing country industries, are undoubtedly an important element in the way of obtaining green energy. Location is the most important factor for the success of the establishment and operation of the biogas plant, which is important not only for economic reasons, but also socio-environmental and landscape reasons.
Źródło:
Inżynieria Ekologiczna; 2017, 18, 5; 157-169
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the C:N Ratio in the Sludge Treated with Natural Methods
Autorzy:
Wiater, Józefa
Powiązania:
https://bibliotekanauki.pl/articles/123064.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
carbon
nitrogen
sludge
processing
Opis:
The aim of the study was to evaluate the changes in the carbon/nitrogen ratio as a result of different natural methods of sewage sludge treatment from two municipal wastewater treatment plants. The sludge from the first treatment plant was poured into two lagoons, one covered with reed and the other with willow and a field with Californian earthworms. The sludge from the second treatment plant was composted with sawdust. The sludge processed with each method was simultaneously subjected to Effective Microorganisms. The samples of processed sludge from both treatment plants were collected three times. In the first one, after five weeks, four months and ten months from the beginning of treatment. The material from the second treatment plant was composted after four, ten weeks and a year of composting. In the samples taken, the total nitrogen content was determined by means of the Kjeldahl method. The determination of the organic carbon content was carried out on a TOC analyser. The C:N ratio was then calculated. It was found that the changes in the C:N ratio depended on the duration of individual processes, and to a lesser extent on the way they were processed. The carbon content during sludge processing increased or remained at a similar level and the nitrogen content decreased with time of their processing, regardless of the EM addition. The addition of Effective Microorganisms to the sludge treatment reduced the C:N ratio in the first period of time and increased this ratio to the optimal value after 10 months or a year. The best technology for sludge processing appeared to be the technology of heap composting with sawdust and with aeration. The ten-week compost had a suitable C/N ratio for use in lawn production.
Źródło:
Journal of Ecological Engineering; 2020, 21, 5; 240-245
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal changes of nitrogen and phosphorus concentration in Supraśl River
Autorzy:
Skorbiłowicz, M.
Ofman, P.
Powiązania:
https://bibliotekanauki.pl/articles/124138.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
nitrogen
phosphorus
seasonality
river
Opis:
The purpose of the study was to determine seasonal changes of ammonia nitrogen, nitrate nitrogen, total nitrogen, phosphate and total phosphorus in the years 2003–2009 in the river Supraśl. For this purpose a monitoring network was created with selected three control points on the basis of which the assessment was made. Control points were located near Gródek, Nowodworce and Dzikie. The research results were averaged for each month. On this basis the assessment of seasonal changes of nitrogen and phosphorus forms in the river Supraśl has been carried out. Research and analysis showed that the concentration of nitrogen and phosphorus in waters of Supraśl were characterized by a clear seasonal variation, the highest concentration of nitrogen was observed in January and February and the lowest in June in each of the analyzed points, the course of changes in the concentration of nitric and total nitrogen in March were different from the general course of reigning changes in their concentrations in surface waters.
Źródło:
Journal of Ecological Engineering; 2014, 15, 1; 26-31
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes of Hydrographic Network of Uściwierskie Lowering According to Cartografic Materials
Autorzy:
Grzywna, A.
Nieścioruk, K.
Powiązania:
https://bibliotekanauki.pl/articles/123898.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
lakes
river
ditches
early maps
drainage
Opis:
The paper analyses a hydrographic network and its changes in the area of Uściwierskie Lowering in last 180 years. The Uściwierskie Lowering was originally the second largest closed drainage depression in Łęczna-Włodawa Lakeland, with an area of 45.83 km2. The increasing anthropopression mainly by melioration works led to significant changes. The authors use early and modern maps to analyse the quantitative aspect of these changes. The technical issues of georeferencing maps in the Geographic Information System (GIS) software are addressed first. In case of some maps, georectification happened to be problematic. 19th century topographic maps (as the Quartermaster map) were of much lower geometric quality compared to early 20th century and modern maps. Also the poor settlement in the area resulted in lack of ground control points useful in case of georectification. Using such data can, however, be justified by the fact that little is known about changes in the hydrographic network of the region during the 19th century, while the period of last 50–100 years is examined with more details. The results show the numeric values illustrating quantitative changes in the area. They are also a step forward towards understanding the degree of anthropogenic transformation of a drainage network. It is vital as these changes influence the whole ecosystem – lowering the water level shapes habitats and change the landscape.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 148-153
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamics of Changes in Microbiological Composition of Stored Sediments
Autorzy:
Sałata, A.
Stoińska, R.
Dąbek, L.
Powiązania:
https://bibliotekanauki.pl/articles/125293.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sediments
stormwater treatment plant
microbiological analysis
Opis:
The composition of the sediments formed in the process of stormwater pretreatment is diversified and depends on many parameters, mainly on the quality of stormwater and the land use of the catchment. The stormwater sediments are characterized by heterogeneous chemical and microbiological composition. The aim of this paper was the microbiological evaluation of the sediments from four stormwater catchments in terms of hazard to humans and the environment. The pH, and the content of organic and mineral matter were determined for the examined sediments. The microbiological analysis included the determination of the total number of psychrophilic, mesophilic, and coliform bacteria, including E. coli, and also the number of faecal Enterococci, Salmonella and Shigella. The study was conducted for fresh deposits and those stored for one year in order to determine the dynamics of changes in their biological activity.
Źródło:
Journal of Ecological Engineering; 2018, 19, 6; 241-246
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Changes in Municipal Waste Management at the County Level
Autorzy:
Przydatek, G.
Kochanek, A.
Basta, M.
Powiązania:
https://bibliotekanauki.pl/articles/124985.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
waste management
household waste
recovery
Opis:
The objective of the study was to identify system changes in waste management, including qualitative and quantitative changes in the Łososina Dolna County between 2012 and 2014, taking into account eleven waste streams in the period before and after the introduction of these changes on the level of the county. Differences in the county’s tasks with respect to municipal waste management, which became clear after the changes, were shown along with their impact on the effectiveness of the assigned tasks related to taking over the obligations of waste collection by property owners. On this basis, a 10% growth in the quantity of collected municipal waste was noticed after the changes, as well as a 4% growth in recycled materials, in particular plastic. A drop on the level of 8.5% in the collected mixed municipal waste was considered favourable; however, a drop in the share of glass waste amounting to 5.28% and was considered as negative. In spite of the introduced changes in the municipal waste stream, the share of non-segregated waste of over 67.55% remained significant. The year of changes was characterised by relatively low value of waste accumulation index on the level of 0.26 kg∙ M-1∙day-1. The aim of the study was to assess the efficiency of municipal waste management in the Łososina Dolna County in comparison to system changes in waste management introduced at the end of the first and the beginning of the second half of 2013.
Źródło:
Journal of Ecological Engineering; 2017, 18, 1; 72-80
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany składników bilansu wodnego śródleśnego oczka wodnego w latach o różnym przebiegu warunków meteorologicznych
Changes of water balance components of midforest pond in a hydrological years of a different meteorological condition course
Autorzy:
Korytowski, M.
Szafrański, C.
Powiązania:
https://bibliotekanauki.pl/articles/401497.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
bilans wodny
śródleśne oczko wodne
zmiany zapasów wody
water balances
mid-forest pond
water storages changes
Opis:
W pracy przedstawiono wyniki badań przeprowadzonych w trzech, różniących się pod względem opadów, latach hydrologicznych 2002/2003, 2003/2004 i 2009/2010 w zlewni śródleśnego oczka wodnego nr 1, usytuowanego na terenie Leśnego Zakładu Doświadczalnego Siemianice, w leśnictwie Wielisławice. Zlewnia badanego oczka wodnego nr 1, o powierzchni około 7,5 ha i lesistości 100%, usytuowana jest w zlewni Niesobu-lewobrzeżnego dopływu Prosny. W badanej zlewni przeważają siedliska świeże a w pokrywie glebowej dominują gleby bielicowo-rdzawe o uziarnieniu piasku słabogliniastego. Śródleśne oczko wodne nr 1, o powierzchni 0,13 ha i głębokości średniej 1,0 m, ma charakter oczka wytopiskowego o łagodnych skarpach. Przeprowadzone badania potwierdziły, że zapasy wody w analizowanym oczku nr 1 ulegały odnawianiu, zwłaszcza w półroczach zimowych, zależnie od przebiegu warunków meteorologicznych. Uzyskane wyniki badań wykazały, że w badanych latach hydrologicznych podstawową rolę w bilansie oczka nr 1 po stronie przychodów odgrywały opady atmosferyczne wahające się od 650 mm (2002/2003) do 992 mm (2009/2010) a po stronie rozchodów parowanie z powierzchni oczka, które osiągało wartości od 408mm (2009/2010) do 835 mm (2002/2003). W mokrym pod względem opadów roku 2009/2010 duży udział w bilansie miał także odpływ z oczka do przyległych terenów, stanowiący około 44% opadów.
The paper presents the results of the researches carried out at the catchment of water pond number one, located at Wielosławice Forestry of Siemianice Experimental Farm. The researches were carried out in three hydrological years 2002/2003, 2003/2004 i 2009/2010 of a different precipitation sums. The area of investigated catchment of pond number one is about 7,5 ha and its forestation totals 100 % and it is situated in a part of Niesób catchment - left-side tributary of Prosna River. Fresh habitats and proper podzols consist of loamy sand texture predominant in soil cover at the area of investigated catchment. Pond No 1, which area is about 0,35 ha and average depth is about 1,4 m, is a typical natural melt pond with gentle slopes. The results confirmed that water storage in pond No1 restored, particularly in winter half-years, dependently of meteorological condition courses. The researches indicate the dominant role of income part of water balance at pond No 1 catchment had precipitation sums. The sums fluctuated from 650 mm (2002/2003) to 992 (2009/2010) in analyzed hydrological years. Evaporation from pond surface which was from 408 mm (2009/2010) to 835 mm (2002/2003) was the dominant factor of outgoing part of water balance. Outflow from the pond to neighboring areas had significant participation – about 44% of precipitation, in water balance in wet 2009/2010 hydrological year.
Źródło:
Inżynieria Ekologiczna; 2014, 39; 85-94
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Groundwater Level Changes in Clearcutting Area of Chosen Forest Habitats
Autorzy:
Stasik, R.
Korytowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/123974.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
groundwater
clearcutting
forest site types
Opis:
Changes of the groundwater levels in the area of clearcutting in a swampy habitat and moist mixed broadleaved forest are analysed in the paper. The aim of the research is to evaluate the influence of clearcutting on the amount of changes in groundwater levels. The research was carried out in two forestries located on the southern tip of Greater Poland, belonging to Siemianice Experimental Forest Farm. The analysis is based on data from wells located in ashalder swamp forest in Marianka forestry and moist broadleaved forest in Laski forestry. The research is based on the relation of groundwater levels in wells located in clearcutting and observation wells. The received relationship of groundwater levels helps estimate changes in groundwater table, depending on its depth before clearcutting. The research shows increases of groundwater levels in the area of clearcutting. Increments are significantly higher in moist broadleaved forest than in ashalder swamp forest.
Źródło:
Journal of Ecological Engineering; 2015, 16, 4; 59-64
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of the Dendrometric Changes Influenced by Soil Water Content
Autorzy:
Kišš, Vladimír
Bárek, Viliam
Novotná, Beáta
Tátošová, Lucia
Powiązania:
https://bibliotekanauki.pl/articles/123039.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drought
dendrometer
irrigation
soil moisture
Opis:
Drought is generally associated with the persistence of low precipitation amount, decreased soil moisture and water availability relative to the normal levels in a designated area. The effects of drought, range from the morphological to molecular levels, and are evident at all phenological stages of the plant growth, at whatever stage the water deficit occurs. Determination of the surface water demands for irrigation purposes comes out from the assumption of hydrologic processes stationarity. This paper shows our research prerequisite that water stress participates in an important part on the volume changes of over ground parts, which is predictive for the irrigation demand. Malus domestica var. Yellow Transparent was chosen for the measurement of volume changes of the surface plant parts. Our measurements were realised by the Diameter dendrometer small (DD-S) from 24.08. to 13.09.2017. One tree was irrigated by the dose of 50 mm. We compared the dendrometric changes to soil moisture and rainfall on both irrigated and non-irrigated trees. The experiment showed the differences between the irrigated apple tree (the diameters of the branches fluctuated between 11.9 and 12.1 mm) and the non-irrigated apple tree (the diameter of the branches increased after three-day rain from 8.35 to 8.61 mm), in order to determine the water stress of plants based on dendrometric changes and optimize irrigation during the drought period.
Źródło:
Journal of Ecological Engineering; 2019, 20, 1; 34-38
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method of measurement of nitrate reductase activity in field conditions
Autorzy:
Krywult, M.
Bielec, D
Powiązania:
https://bibliotekanauki.pl/articles/123113.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
nitrate reductase
kinetic changes
field analysis methodology
optimization
Opis:
For the last three decades the interest in biomonitoring and ecological studies has been rapidly growing. Therefore, it was necessary develop of new methods of analysis for biochemical parameters which allow to quantify biological response of investigated organisms for environmental factors. The main goal of this paper demonstrates optimal conditions for enzyme kinetics analysis conducted in the field in situ. Nitrate reductase activity is typically assayed in vivo by measuring nitrite production in tissue which has been vacuum infiltrated with buffered nitrate solution. For this study a nitrate reductase assay was adapted from a number of studies with own modifications of authors. Leaves of examined plants were collected from the investigated plots and immediately placed into test tubes with buffer solution (potassium phosphate dibasic containing 0.6% propanol-1) and evacuated in 0.33 atm. for 10 minutes. Then, known amount of potassium nitrate was added, and the solution sample was analyzed in order to obtain a background level of nitrite. The foliage samples were incubated for 2 hours at 20 °C in darkness. Following this procedure, they were given the most optimal conditions for reaction stability. After incubation the amount of synthesized nitrite was determined colorimetrically using sulfanilamide and N-(1-naphthyl)ethylenediamine dihydrochloride, measured at 540 nm. The foliage samples were oven-dried to obtain dry mass. The level of nitrate reductase activity was calculated as the amount of nitrite produced in nmol per gram of dry mass of foliage tissue per hour. The result obtained during the research demonstrate the changes of nitrate reductase dynamics according to change of incubation parameters. Dynamics of enzyme activity with changes of solution pH and incubation temperature was presented. Installation for conducting infiltration process and construction of incubation chamber is also described in this paper.
Źródło:
Journal of Ecological Engineering; 2013, 14, 1; 7-11
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal changes in phosphorus load flowing out of small agricultural catchments
Autorzy:
Pulikowski, K.
Pawęska, K.
Bawiec, A.
Powiązania:
https://bibliotekanauki.pl/articles/124125.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water
catchment
season
load
phosphorus
Opis:
In this article distribution of monthly phosphorus loads flowing out of two agricultural catchments which are located in different physiographic conditions of Lower Silesia was analysed. Loads of phosphorus runoff from the catchment located in the piedmont part of Lower Silesia in each month rarely exceed 0.10 kg P · ha-1. The size of annual load is determined by loads obtained in two months of early spring. Much lower loads obtained for lowland catchment, located near Wroclaw. Values calculated for each month rarely exceed the value of 0.01 kg P · ha-1. Culmination of loads bringing away is a bit more extended in a time compared to the catchment located on Sudety Mts. Foreland. Much higher loads are observed during the period from January to April – this period has a major impact on the size of phosphorus load that flows out from this catchment during whole hydrological year. The obtained results clearly indicate that the threat of watercourses and water reservoirs supply in phosphorus compounds from agricultural land is periodic and it is particularly high during early spring. Phosphorus load flowing out from the analyzed catchments is very diverse. From facility located on Sudety Foothill in hydrological year, during research period, flowed away average 0.81 kg P · ha-1. Significantly lower values were obtained for second facility and it was average 0.15 kg P ha-1 during a year. The size of load discharged during a year is largely determined by amount of phosphorus load flowing out during winter half of the year (from XI to IV). In case of foothill catchment in this period flowed out average 0.56 kg P · ha-1, which presents 69% of annual load and in lowland catchment this percentage was even slightly higher and was 73%.
Źródło:
Journal of Ecological Engineering; 2015, 16, 1; 81-86
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Krótkookresowe zmiany hydrograficzne i hydrologiczne w zlewni torfowiska wysokiego Białe Błoto
Hydrologic and hydrographic short-term changes in raised bog catchment of Białe Błoto
Autorzy:
Woźniak, E.
Sikora, M.
Powiązania:
https://bibliotekanauki.pl/articles/400378.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
zagłębienia bezodpływowe
torfowisko wysokie
wahania poziomu wody
zmiany sieci hydrograficznej
potholes
depressions without outflow
raised bog
fluctuations in water level
changes of hydrographic network
Opis:
Cechą charakterystyczną obszarów młodoglacjalnych jest występowanie rozległych obszarów bezodpływowych. Przykładem może być obszar endoreiczny o powierzchni 65 km2, obejmujący sąsiadujące ze sobą obszary bezodpływowe należące od zlewni: bezpośredniej Łeby, Łupawy oraz ich dopływów. W dnach licznych zagłębień bezodpływowych ewapotranspiracyjnych występują nie tylko zbiorniki, ale również różnego typu mokradła. Celem pracy jest przedstawienie krótkookresowych (w ciągu doby lub kilku dni) zmian poziomu wody w zagłębieniach. Zagłębienia te są zróżnicowane pod względem rozmiarów i osadów wypełniających ich dna. Różnie reagują one na zmiany warunków meteorologicznych i oraz antropopresję, która choć na pozór niewielka, wywołuje w tym systemie szybko widoczne, często zaskakujące skutki. Niniejsze opracowanie opiera się na wynikach kartowań przeprowadzonych w latach 2004 - 2008, w trakcie których koncentrowano się przede wszystkim na rejestracji pojawiających się lub zanikających cieków, oczek i mokradeł, pomiarach powierzchni i głębokości oczek oraz na obserwacjach wody pojawiającej się na powierzchni mokradeł.Ciągłe pomiary wahań wody w zagłębieniach bezodpływowych rozpoczęto w listopadzie 2004 roku. W tym celu zainstalowano trzy piezometry i wyposażono je w limnigrafy ciśnieniowe. Mierniki umieszczono w odbiorniku systemu (Białe Błoto) oraz w dwóch zagłębieniach w górnej części zlewni, z których woda okresowo przelewa się i może zasilać odbiornik.
Catchment of Białe Błoto is located near Lębork, on the territory created by action of Pleistocene glaciation. This catchment is one of the several outflow areas which are parts of immediate catchment of Łeba, the catchment of Łupawa and their tributaries. The bottoms of the outflow depressions are filled with water or many different kinds of wetlands. The case study of this review is presentation of short-term changes (during the day or few days) of water level in the potholes in endoreic system of Białe Błoto. The sizes and there the settlement on the bottom of the potholes is very various. One of the most characteristic features of the Białe Błoto system is that, even very small change of meteorological conditions and anthropopressure cause very big and sometimes very surprising effects. This review is based on the researchesfrom 2004 - 2008. The most important thing during this studies was registration of appearing and disappearing streams, ponds and wetland. There were also carried out measurements of surface and depth of the ponds. Moreover, there were made observations of water appearing on the surface of the wetlands. The second thing of the study were continuous measurement of water level in potholes. They were made by three pressure limnigraph installed in November 2004. The gauges were placed in the receiver of the system (Białe Błoto) and in two depressions in upper part of the catchment from where water may from time to time power the receiver.
Źródło:
Inżynieria Ekologiczna; 2012, 29; 162-173
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 126

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