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Tytuł:
Przemiany struktury społecznej na Ukrainie w okresie niezawisłości
Transformations of Social Structure in Ukraine during the Decade of Independence
Autorzy:
Chmelko, W.
Powiązania:
https://bibliotekanauki.pl/articles/2138562.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
labour
macrostructural changes
stratification
Opis:
The paper traces some macrostructural societal changes in the Ukrainian society during the independence, namely, the change of a societal labour structure, the changes of class, institutional, and stratificational structures, and also the change in proportions of some political orientations' distribution among the population of Ukraine.
Źródło:
Studia Socjologiczne; 2004, 4(175); 11-31
0039-3371
Pojawia się w:
Studia Socjologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gaokao i procesy stratyfikacji społecznej w Chinach
Gaokao and Processes of Social Stratification in China
Autorzy:
Gromkowska-Melosik, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1070752.pdf
Data publikacji:
2017-06-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
gaokao
high-stakes test
stratification
socialization
Opis:
This article concerns „gaokao” Chinese exams. I show how the „high stakes” tests (the essence of these exams) create the winners and losers in the battle for stratification success. They set up, as a one-time „selection act”, the trajectory of a career and the whole future life of young Chinese. At the same time, they are an example of the entanglement of the testing process in politics and of the enormous (and overwhelming) social pressure on young people.
Źródło:
Studia Edukacyjne; 2017, 44; 45-63
1233-6688
Pojawia się w:
Studia Edukacyjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Edukacja uniwersytecka i procesy stratyfikacji społecznej.
Academic education and the processes of social stratification
Autorzy:
Melosik, Zbyszko
Powiązania:
https://bibliotekanauki.pl/articles/644665.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
education
stratification
social
mobility
equality
egalitarianism
Opis:
In the article author discusses the relationships between education and social stratification. The theories of meritocracy and credentalism are analyzed and a special attention is paid to the opposition between their interpretations of the equality/inequality dilemma. Then the R. Turner’s concepts of social mobility and E. Hopper’s concepts of social creation of aspiration are presented. In the second part of the article the phenomenon of overeducation and diploma in ation is considered as well as a case of higher education in Japan as a factor of social stratification in this country.
Źródło:
Kultura-Społeczeństwo-Edukacja; 2013, 3, 1; 21-46
2300-0422
Pojawia się w:
Kultura-Społeczeństwo-Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Otwartość polskiej struktury społecznej: 1982–2016
The Openness of Social Structure in Poland: 1982–2016
Autorzy:
Domański, Henryk
Mach, Bogdan W.
Przybysz, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/428087.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ruchliwość
stratyfikacja
dziedziczenie
mobility
stratification
inheritance
Opis:
Konceptualną ramą badań nad ruchliwością jest teoria modernizacji. Stwierdza się w niej, że wzrost otwartości jest dominującą tendencją, która wynika z postępującej liberalizacji i rozwoju gospodarki rynkowej. Wbrew tym oczekiwaniom bariery ruchliwości okazują się na ogół stabilne. Ustalenia te dotyczyły głównie zachodnich demokracji. Nasza analiza jest kontynuacją tego podejścia w odniesieniu do Polski. Opierając się na danych z lat 1982–2016 wskazujemy, że po pierwsze, dokonuje się systematyczne obniżenie wpływu wykształcenia na pozycję zawodową, co przeciwdziała zwiększaniu się ruchliwości międzypokoleniowej. Po drugie, tendencja ta nie obniżyła jednak tzw. względnych szans ruchliwości, chociaż mogło to być bardziej związane z przekształceniami struktury zawodowej niż ze wzrostem otwartości barier społecznych. Po trzecie, za stabilnym charakterem wzorów ruchliwości przemawia utrzymywanie się nierówności edukacyjnych. Po czwarte, okazuje się, że w odróżnieniu od badań w innych krajach, w przypadku Polski, wyższe wykształcenie nie osłabia, ale raczej wzmacnia znaczenie dziedziczenia pozycji rodziców.
This paper deals with changes in the “openness” of Polish society over a 35-year period, focusing primarily on relative mobility, with some attention to changes in absolute mobility. We disentangle intergenerational occupational association into four interrelated parts: (i) relative mobility defined by the effect of social origin on destination, (ii) the relationship between social origin and education, (iii) the net effect of education on destination, and (iv) the compositional effect of education reflected in the rising share of more educated categories in the social structure. We show that changes in social fluidity were neither systematic nor easily interpretable. While our results reveal a consistently declining association between education and occupational position, unidirectional change could not be identified in the social origin-education link and in relative mobility in terms of the association between origin and destination. The origin-destination association generally increased at higher (rather than lower) educational levels.
Źródło:
Studia Socjologiczne; 2019, 1(232); 25-63
0039-3371
Pojawia się w:
Studia Socjologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration in the Educational System in Israel and Its Influenceon Social Stratificationin a Changing World
Integracja w systemie oświaty w Izraelu i jej wpływ na rozwarstwienie społeczne w zmieniającym się świecie
Autorzy:
Franco, Manor Sali
Powiązania:
https://bibliotekanauki.pl/articles/916088.pdf
Data publikacji:
2020-01-19
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
integration
educational
Israel
stratification
economic status
Opis:
Among the phenomena that characterize modern society it is possible to note the appearance of complex political, occupational, and sectorial systems of status and the weakening of the ‘class’ factor in its ideological meaning. The main result of this development was the steadily increasing conflictbetween, on the one hand, the trends of economic development and the new centers of power and, on the other hand, the mobility of new groups. All the groups competed among themselves over the additions of income, accessibility to economic resources, and positions of influencein the government system as well as over the creation of autonomous frameworks. An important part in these sectorial formations is related to the positioning of education in the entire stratifiedsystem. The statement that the extension of education has not resulted in the reduction of social gaps in the professional field,especially between employees, is correct, yet conversely it did drive a process of change in the evaluation of different subjects and a change in the perception of education as a necessary state of specialization. This aspect constitutes an important factor in the processing of the stratifiedmap and in the formation of the class awareness. The education systems, which are the main organizations to inculcate education, can determine who is qualifiedand who is not qualifiedto filldifferent employment roles; they have become the main device for the achievement of social and economic status.
Źródło:
Studia Edukacyjne; 2017, 46; 439-449
1233-6688
Pojawia się w:
Studia Edukacyjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SAMPLE ALLOCATION IN ESTIMATION OF PROPORTION IN A FINITE POPULATION DIVIDED INTO TWO STRATA: AN EXAMPLE OF APPLICATION
Autorzy:
Sieradzki, Dominik
Zieliński, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/453168.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
survey sampling
sample allocation
stratification
estimation
election poll
Opis:
The problem of estimating a proportion of objects with particular attribute in a finite population is considered. This paper shows an example of the application of estimation fraction using new proposed sample allocation in a population divided into two strata. Variance of estimator of the proportion which uses proposed sample allocation is compared to variance of the standard one. In the paper an application of sample allocation described in Sieradzki & Zieliński [2017] is presented."
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2018, 19, 1; 71-77
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ruchliwość społeczna i wzory zawierania małżeństw w Polsce
Social mobility and marital homogamy in Poland
Autorzy:
Domański, Henryk
Powiązania:
https://bibliotekanauki.pl/articles/2895000.pdf
Data publikacji:
2020
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
inheritance
social mobility
stratification
social structure in Poland
Opis:
This paper presents findings on the changes in social stratification in Poland, with particular attention given to mobility and marital choices. The author begins with an overview of the concept of social mobility, i.e. shifting of individuals or other categories in social space, including its definitions, indicators, patterns and mechanisms. Next, based on a set of empirical data, the author discusses the patterns of mobility and martial choices in the aftermath of 1989 transition in Poland. Special attention is given to the analysis of the openness of Polish society, opportunities for intergenerational mobility and its consequences.
Źródło:
Studia BAS; 2020, 2(62); 57-72
2080-2404
2082-0658
Pojawia się w:
Studia BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Horizontal Inequalities in Higher Education
Autorzy:
Zawistowska, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/1929899.pdf
Data publikacji:
2011-09-27
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
horizontal educational inequality
higher education
stratification
educational selection
Opis:
This paper aims to answer two questions concerning inequalities in tertiary education. First question concerns the effect of social origin on choice of field of study and the second question concerns the effect of gender. Existing research has demonstrated a significant relation between social background and the field of study. Individuals with more educated parents are more likely to study at prestigious faculties, such as law or medicine. Women are more willing than men to choose humanities and social studies whereas men more often choose technical studies. Will these patterns continue in the face of the rapid increase in number of students which began in Poland in the 1990s? A survey conducted in three state higher-education establishments in Białystok in 2008 shows that students’ choices continue to be affected both by social background and gender. We also found a significant relationship between the field of study and general risk-proneness. These results are explained in terms of three different theories: cultural capital, critical theory, and rational choice.
Źródło:
Polish Sociological Review; 2011, 175, 3; 333-350
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preferred Levels of Income Inequality in a Period of Systemic Change: Analysis of Data from the Polish Panel Survey, POLPAN 1988–2003
Autorzy:
Kołczyńska, Marta
Merry, Joseph J.
Powiązania:
https://bibliotekanauki.pl/articles/1810841.pdf
Data publikacji:
2016-06-24
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
stratification
inequality
economic attitudes
panel analysis
transition
Polska
Opis:
Rising trends in economic inequality are well-established across many affluent nations. However, researchers have accrued considerably less knowledge regarding the economic attitudes and preferences of individuals living within the context of increasing inequality, especially in developing or transition countries. To gain leverage on this topic, we utilize data from Polish Panel Survey (POLPAN) from 1988–2003 to examine change over time in respondents’ preferred levels of income inequality. Results show that Poles tend to accept higher levels of income inequality over time. This effect increases with time, even after controlling for respondents’ meritocratic beliefs and attitudes toward state intervention. In addition, this rise in preferred income inequality changes in accordance with actual and perceived changes in the earnings distribution. After describing the patters of variation in acceptance of income inequality between different social groups, we discuss the implications of individuals’ evolving benchmarks for preferred levels of inequality.
Źródło:
Polish Sociological Review; 2016, 194, 2; 171-190
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozwarstwianie nasion rzepaku podczas wypływu z silosów
Size stratification of rape seeds during the funnel flow from silos
Autorzy:
Bowszys, J.
Powiązania:
https://bibliotekanauki.pl/articles/292006.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
rzepak
nasiona
rozwarstwienie
zanieczyszczenie
silos
rape
seeds
stratification
impurities
Opis:
W pracy zbadano zjawisko rozwarstwiania nasion podczas wypływu z silosów z wypływem lejowym. Materiałem użytym do badań były nasiona rzepaku. Badania przeprowadzono w trzech typach silosów SZD o pojemności 40 m3. Celem badań było określenie, w jaki sposób dodatkowe elementy umieszczone w silosie wpływają na segregację mieszaniny nasiennej rzepaku. Stwierdzono wyraźne rozwarstwienie nasion w silosach z promieniowym i pionowym układem wietrzenia w porównaniu z silosem bez układu wietrzącego. Zaleca się żeby w tych silosach ostatnią partię nasion stanowiącą 15% objętości zbiornika poddać ponownemu czyszczeniu.
The study deals with the question of size stratification of seeds during the funnel flow from a silo. Oilseed rape seeds were used for the tests. The experiment was carried out in three types of SZD silos, each 40 m3 in capacity. The purpose of the study was to determine how some additional elements in a silo affected the segregation of a seed mixture. In silos equipped with vertical or radial ventilation systems, seeds were size stratified, whereas in silos without a ventilation system seed stratification was much less efficient. It is, therefore, recommended to further clean the last 15% of grain removed from the latter types of silos.
Źródło:
Inżynieria Rolnicza; 2007, R. 11, nr 9 (97), 9 (97); 21-26
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is there Today Caste System or there is only Caste in India?
Autorzy:
Sharma, KANHAYA L.
Powiązania:
https://bibliotekanauki.pl/articles/1929960.pdf
Data publikacji:
2012-07-09
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
caste system
caste society
stratification
social mobility
caste-free areas
Opis:
The main focus of the paper is that caste system has always been resilient and dynamic due to its inner inconsistencies and contradictions on the one hand, and due to its interpenetration into economy, polity and culture on the other. The aim of this paper is to understand continuity and change in the caste system. Caste has engaged people, hence it has acquired a meta-legal approval. Caste has never been a simple ritual hierarchy because it has encompassed the entire matrix of socio-economic and political relations. It has been argued that there is a need to reconceptualize caste. Caste is no more simply a system of idea and values. More important is to see actual behaviour of the people vis-à-vis the role of caste as a system. Caste has become a matter of interpretation rather than substantialization. It refers to a purposive rationality. Its discrete use provides a description of the problems of Indian society, polity and economy. However, besides caste, there are new status groups, varied forms of social mobility, and structural processes of change and dominance. In such a situation, “family” and “individual” are emerging as agencies of reproduction of inequality/equality. Caste is becoming more of a state of mind of an individual. Contemporary changes have reshaped caste. The policy of reservations based on caste has kept it alive and vibrant. Protests against caste-based reservations have also contributed to the continuity of caste. Caste may be elusive for some who have distanced from their social and cultural roots, but for others, who continue to be there in villages and towns, caste is enduring, and it is there in practice in one way or other. At times, caste-based outbursts surface, though in everyday life, caste is not so visible as a means of social control.
Źródło:
Polish Sociological Review; 2012, 178, 2; 245-264
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Description of energy balance for selected refrigeration furniture
Wyznaczenie bilansu energii dla wybranych mebli chłodniczych
Autorzy:
Bernat, Tomasz
Bieńczak, Krzysztof
Bagusławski, Leon
Powiązania:
https://bibliotekanauki.pl/articles/337551.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
heat balance
refrigeration furniture
stratification
bilans cieplny
meble chłodnicze
stratyfikacja
Opis:
Food is a product that breaks down quickly and easily. Therefore, it require storage at a low and controlled temperature. Maintaining a constant temperature inside the refrigeration furniture requires removal of the heat which enters the interior of the furniture and the heat produced by stored products. The paper presents methods of heat transfer implementation, such as: heat conduction (including fluid stratification case), natural and forced convection and radiation. Heat balance have been presented for selected refrigeration furniture including the characteristics of its individual parameters. A method for determining the components of a heat balance is also presented.
Żywność jest produktem, który szybko i łatwo się psuje, dlatego wymaga przechowywania w kontrolowanej temperaturze. Zachowanie niezmiennej temperatury wewnątrz mebla chłodniczego wymaga odprowadzenia ciepła, które dopływa do wnętrza mebla z otoczenia i ciepła wytwarzanego przez przechowywany produkt. Omówiono sposoby realizacji procesu przepływu ciepła takie jak: przewodzenie ciepła (w tym stratyfikacja), konwekcja naturalna i sztuczna oraz promieniowanie. Przedstawiono bilans cieplny dla wybranych mebli chłodniczych wraz z charakterystyką jego poszczególnych parametrów. Zaprezentowano również sposób pozwalający wyznaczyć składowe bilansu ciepła.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2019, 64, 2; 11-14
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Socjalizacyjna funkcja szkolnictwa w Afryce Południowej w okresie apartheidu (1948-1994)
Socialization Function of South African Education System During the Apartheid (1948-1994)
Autorzy:
Gmerek, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/915988.pdf
Data publikacji:
2020-01-19
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
education
socialization
indoctrination
South Africa
Apartheid
discrimination
curriculum
segregation
stratification
Opis:
The article is devoted to the discussion of socialization processes in the South African apartheid sysem of education (1948-1994). The socialization function of education is considered in-depth, with special attention paid to the racial inequality and discrimination in South African society. The article includes the consideration of school indoctrination and different aims of education and curricula in education subsystems for different racial groups in an Apartheid society.
Źródło:
Studia Edukacyjne; 2017, 46; 235-252
1233-6688
Pojawia się w:
Studia Edukacyjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationships between water temperature, nutrients and dissolved oxygen in the Northern Gulf of Aqaba, Red Sea
Autorzy:
Manasrah, R.
Raheed, M.
Badran, M.I.
Powiązania:
https://bibliotekanauki.pl/articles/49092.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
stratification
nutrient
Aqaba Gulf
temperature
sea water
Red Sea
oxygen
Opis:
Five years (1998, 2000–2003) of summer records of temperature, nutrients and dissolved oxygen concentrations in the upper 400 m of the water column of the northern Gulf of Aqaba were employed to produce a simple statistical model of the relationship between temperature versus nitrate, phosphate, silicate andd issolved oxygen concentrations. Temperature profiles in the upper 400 m during summer revealeda clear thermocline in the upper 200 m. This was reflected in nutrient ando xygen concentrations as nitrate, phosphate, and silicate increasedfr om the surface to deep water while dissolved oxygen decreased. The best fit relationship between temperature versus nitrate andphosphate was inverse linear and the best fit correlation between temperature versus silicate andd issolvedo xygen was fractional. The observedn utrient concentrations were shaped by a combination of the hydrodynamics and biological factors. Deep winter mixing and high nutrient concentrations dominate during winter. Shortly after the water stratifies in spring, the nutrients are drawn down by phytoplankton during the spring bloom and remain low throughout the rest of the year. The regression equations presented here will be useful in estimating nutrient concentrations from temperature records as long as the annual natural cycle is the main driver of nutrient concentrations and external inputs are insignificant. Deviations from these relationships in the future could provide insight into modifications in the nutrient concentrations probably resulting from new nutrient sources, such as anthropogenic inputs.
Źródło:
Oceanologia; 2006, 48, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany wartości wskaźników jakości wody wraz z głębokością przy ujęciu wody pitnej ze zbiornika Dopczyce
Changes of Water Quality Indices with Depth at Drinking Water Intake from Dobczyce Reservoir
Autorzy:
Bogdał, A.
Policht-Latawiec, A.
Kołdras, S.
Powiązania:
https://bibliotekanauki.pl/articles/1818622.pdf
Data publikacji:
2015
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
zbiornik wodny
jakość wody
eutrofizacja
stratyfikacja
reservoir
quality water
eutrophication
stratification
Opis:
The paper presents a comparative and statistical analysis of the changes of water quality indices values with depth on the water intake from Dobczyce reservoir. Moreover, seasonal variability of the tested indices was analysed and water quality with its usable values were assessed. Dobczyce reservoir is a 12 km long and 1.0 km wide submountain dam reservoir. The reservoir area at the maximum impoundment level (maximum water level) is 915 ha, its capacity 112.1 mln m3 and mean depth 10.2 m. It is situated 20 south of Krakow, in the malopolskie voivodship, myślenicki county. Raw water from the reservoir is collected on tower intake which makes possible water intake from three depth levels. Real water extraction on the intake is about 1.0 m3 ∙s-1, guaranteed 2.5 m3 ∙ s-1 and permissible 5.5 m3 ∙ s-1. The investigations conducted in 2008 and 2009 covered selected physicochemical water indices: the temperature, pH, turbidity, electrolytic conductivity, total suspended solids, dissolved oxygen, oxygen saturation, silica, phosphates, total phosphorus, as well as bioindicator – chlorophyll „a”. At weekly intervals, water samples for laboratory analyses were collected from three depth levels of the reservoir directly at the tower water intake for Krakow. Physicochemical and biological analyses, using referential methods were conducted in the Laboratory of the Municipal Waterworks and Sewer Enterprise in Krakow. For each analysed index mean values for 2008 and 2009 and for the 2008–2009 period of analyses were computed, divided into the winter (October-March) and summer (April-September) half year and for the calendar year (January-December). Statistical significance of the differences between the values of individual indices registered on various depth levels on the reservoir were estimated by nonparametric U Manna-Whitney’a significance test, on α = 0.05. For all investigated indices box-whiskers plots were made which suggestively presented the median, extreme values and 10–90% percentiles. The assessment of Dobczyce reservoir water for drinking water supply for people was conducted following the methodology described in the Regulation of the Minister of the Environment [Dz. U. 2002 Nr 204, poz. 1728]. Selected quality parameters of the tested water were also confronted with the requirements stated in the Regulation of the Minister of Health dated 29 March 2007 on drinking water quality for people [Dz. U. 2007 nr 61, poz. 417]. Trophic state of Dobczyce reservoir was assessed on the basis of total phosphorus and chlorophyll „a” concentrations, using the criteria stated by OECD. On the basis of data analysis it was established that mean annual values of water temperature, pH, oxygen saturation and concentrations of dissolved oxygen and chlorophyll „a” were decreasing with depth. On the other hand, in the vertical profile, turbidity, electrolytic conductivity, as well concentrations of total suspended solids, phosphates and total phosphorus were increasing. Higher water temperatures and pH values were noted in the summer half-year, whereas dissolved oxygen, oxygen saturation and phosphates in the winter half-year. On average for the investigated period, water collected in Dobczyce reservoir on the depth of 3.55 and 9.65 m was classified, respectively to A2 and A3 water category, therefore it required appropriate typical or high performance typical treatment. On the other hand, due to low oxygen saturation in the summer half-year, water on the level of 15.87 m did not meet the standards. Irrespective of the depth, pH and salinity fulfilled the requirements for water intended for direct consumption by people, whereas water turbidity was unsatisfactory all the time. Mean annual concentrations of total phosphorus qualify water collected in the reservoir as mezotrophic, while average and maximum concentrations of chlorophyll „a” allow to regard the water as respectively mezotrophic or eutrophic. Due to relatively big differences in values of the analysed indices, better quality raw water intended for running water outside the growing period supply should be skillfully collected from various depths – generally in the from the shallowest level, in the vegetation season from the middle level and from the lowest level on case higher concentrations of chlorophyll „a” and plankton occur on the first two depths of the reservoir.
Źródło:
Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 1239-1258
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 48

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