Temat: central poland - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of hydrothermal conditions and their impact on early potato yields
Autorzy:: Radzka, E.
Rymuza, K.
Lenartowicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/123670.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Sielianinow’s coefficient
growing season
east-central Poland
yield
early potato
Opis:: The work is based on data on monthly air temperatures, monthly sums of atmospheric precipitation and early potato yields in 2000–2013 obtained from seven COBORU (Research Centre for Cultivar Testing) stations situated in east-central Poland. Hydrothermal conditions during the growing season (April–July) of early potato were described by means of the Sielianinow’s coefficient. The relationships between potato yields and the Sielianinow’s hydrothermal coefficient of the growing season were examined using multiple regression equations generated by means of the step-wise regression procedure followed by polynomial regression procedure. The average Sielianinow’s coefficient values ranged from 1.43 in April to 1.66 in May during the early potato growing season in east-central Poland. The applied statistical methods revealed that the hydrothermal factors impacted on early potato yields, particularly in the second stage of potato growth and development.
Źródło:: Journal of Ecological Engineering; 2015, 16, 2; 120-124
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Variation in Growing Season Thermal Resources in Central-East Poland
Autorzy:: Radzka, Elżbieta
Powiązania:: https://bibliotekanauki.pl/articles/1838271.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: growing degree days
growing season
central-east Poland
Opis:: The work assesses heat resources in central-east Poland (2001-2019). As a measure of heat resources, the concept of growing degree days (GDD) was used. GDD is a useful tool for agriculture as it takes into account the aspects of local weather and, based on it, plant development can be predicted. Daily maximum and minimum air temperatures were used to calculate GDD at 7 stations using threshold base air temperatures of 0°C (commencement of the warm season) and 5°C (start of the period of active plant growth). The following basic characteristics of the distribution were calculated: arithmetic mean, minimum and maximum values as well as coefficient of variation. The direction and significance of changes of the heat resources were determined on the basis of linear trend equations. The significance of directional coefficient of the trend was estimated with t-Student test at the significance level of α = 0.05. The average air temperature during the growing season ranged from 14.6°C in Białystok and Białowieża to 15.6°C in Włodawa, its greatest increase being recorded in Włodawa and Siedlce (by 0.36°C per year). GDD increased from north to south in the study area, but the mean GDD varied considerably from one location to another. GDD0 and GDD5 showed an upward trend over the 2001-2019 period for the study region as a whole.
Źródło:: Journal of Ecological Engineering; 2021, 22, 6; 145-150
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Analysis of an Occurrence of High Frosts During the Growing Season in Central-East Poland in 2001-2018
Autorzy:: Rymuza, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/1955421.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: air frost
intensity of frost
central-eastern Poland
Opis:: Frosts are the most common natural phenomena during the transitional seasons. A frost occurs when the average daily air temperature is positive and the minimum temperature drops below 0°C. The problem of frost occurrence (especially spring frosts) is very important from the point of view of the threats related to crop plant cultivation, because it causes losses in crops when taking place during the plant growth. The aim of the study was to analyze the occurrence of air frosts in the years 2001-2018 in the region of central-eastern Poland on the basis of meteorological data. In the region of central-eastern Poland, the greatest number of days with mild, moderate and strong frosts in 2001-2018 was observed in Białowieża; conversely, it was the lowest in Warsaw. The distribution of the number of days with frosts in spring was similar. The distribution of autumn frosts, however, was different. The greatest number of days with autumn frosts was observed in Terespol and Białowieża, the least in Legionowo and Warsaw. The last mild spring frosts occurred in the period from the 3rd to 7th of April, and the earliest autumn frosts occurred between the 9th of September and the 27th of October. The dates of moderate frosts were similar. The last strong frosts occurred on the 2nd of May and the earliest on the 30th of September. The conducted analysis proved that in such a small area, there is a difference in the occurrence of high frosts observed both in spring and autumn.
Źródło:: Journal of Ecological Engineering; 2021, 22, 7; 142-149
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Variation in Growing Season Thermal Resources in Central-East Poland
Autorzy:: Radzka, Elżbieta
Powiązania:: https://bibliotekanauki.pl/articles/1838369.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: growing degree days
growing season
central-east Poland
Opis:: The work assesses heat resources in central-east Poland (2001-2019). As a measure of heat resources, the concept of growing degree days (GDD) was used. GDD is a useful tool for agriculture as it takes into account the aspects of local weather and, based on it, plant development can be predicted. Daily maximum and minimum air temperatures were used to calculate GDD at 7 stations using threshold base air temperatures of 0°C (commencement of the warm season) and 5°C (start of the period of active plant growth). The following basic characteristics of the distribution were calculated: arithmetic mean, minimum and maximum values as well as coefficient of variation. The direction and significance of changes of the heat resources were determined on the basis of linear trend equations. The significance of directional coefficient of the trend was estimated with t-Student test at the significance level of α = 0.05. The average air temperature during the growing season ranged from 14.6°C in Białystok and Białowieża to 15.6°C in Włodawa, its greatest increase being recorded in Włodawa and Siedlce (by 0.36°C per year). GDD increased from north to south in the study area, but the mean GDD varied considerably from one location to another. GDD0 and GDD5 showed an upward trend over the 2001-2019 period for the study region as a whole.
Źródło:: Journal of Ecological Engineering; 2021, 22, 6; 145-150
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The Increasing in the Floristic Diversity of the Abandoned Arrhenatherion Elatioris Meadows by Dicotyledonous Species Oversowing
Autorzy:: Janicka, Maria
Pawluśkiewicz, Bogumiła
Powiązania:: https://bibliotekanauki.pl/articles/123414.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: meadow restoration
species introduction
oversowing
tall herbs
Arrhenatherion elatioris
habitat code 6510
central Poland
Opis:: The paper presents the research on the increasing in the floristic diversity of abandoned Arrhenatherion elatioris meadows through the introduction of three dicotyledonous species: Achillea millefolium, Daucus carota and Leucanthemum vulgare and the re-management. They were carried out in the meadows of the landscape reserve “The Ursynów Escarpment” (“Skarpa Ursynowska”) in 2016-2018. The studies were aimed at restoring natural values of these meadows, especially their landscape and aesthetic functions. The experiment was designed in the community of Arrhenatherum elatius + Bromus inermis, as a randomised complete block, with eight replications, on the plots of 2 m². In each plot the diaspores (collected in The Lower Pilica Valley) were sown close to the centre of the plot, within an area of 0.5×0.5 m. In the sowing year two top-cuttings and one productive one were made. In the following years the meadows were mowed once or twice. The following features were estimated: the abundance of sown species populations, the seedling density, the heights of the sown species, the height of the resident vegetation, the total ground cover, the species composition of the sward and the species richness. The improvement of the landscape and aesthetic functions of the reserve due to increasing in the species richness from 10 to 38 species and significant decreasing in Urtica dioica share was achieved. The species diversity, described with the Shannon-Wiener index, enlarged of 53% in the first year after oversowing. The introduced species decided also about the improvement of the total ground cover. Fast and lasting effect was obtained especially on the area over-sown with L. vulgare. The good effects in the first two years were obtained also in the plots with D. carota (biennial species). A. millefolium was characterised by significantly fewer number of seedlings but its population abundance was increasing gradually during the following years. The impact of high grasses (A. elatius, B. inermis) on the soil coverage by the plants of sown species and their heights was shown. The studies also proved that in the conditions of summer drought the resident vegetation may protect the seedlings against the temperature and evapotranspiration.
Źródło:: Journal of Ecological Engineering; 2020, 21, 1; 168-179
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The assessment of atmospheric drought during vegetation season (according to standardized precipitation index SPI) in central-eastern Poland
Autorzy:: Radzka, E.
Powiązania:: https://bibliotekanauki.pl/articles/123337.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: standardized precipitation index (SPI)
time trend
central-eastern Poland
Opis:: The paper presents an assessment of atmospheric drought during vegetation season defined on the basis of standardized precipitation index (SPI). The data used in this paper come from nine IMWM stations from central-eastern region of Poland, and they were registered in 1971–2005. The frequency of occurrence of vegetation season’s months was determined in particular drought classes. Spatial distribution of SPI index values was shown in all of the vegetation season’s months on the area examined. The direction and significance of values changes tendency of the analyzed index during the vegetation season were also defined. It was noticed that extreme droughts appeared four times less frequently than the normal months. Very dry months were noted most frequently in September while moderately dry – in August. The analysis of the frequency of spatial distribution of particular drought classes showed that extreme dry and very dry months occurred most frequently in western part of the area examined, while the moderately dry months also in south-eastern part. On the basis of the linear trend analysis it can be said that the SPI index values were slightly decreasing year by year.
Źródło:: Journal of Ecological Engineering; 2015, 16, 1; 87-91
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The Effect of Hydrothermal Conditions on Oats Yields in East-Central Poland (1975–2005)
Autorzy:: Radzka, E.
Jankowska, J.
Markowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/125480.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: hydrothermal coefficient
growing season
oats
yield
central-eastern Poland
Opis:: The objective of the work was to evaluate the effect of hydrothermal conditions on oats yields produced in east-central Poland. Hydrothermal conditions were determined based on the Sielianinov’s hydrothermal coefficient for nine IMGW (Institute of Meteorology and Water Management) stations located in the study area. The second data set consisted of oats yields compiled and published by the Main Statistical Office. Average yields as well as minimum and maximum yields were analysed. The relationship between oats yields and hydrothermal conditions was examined using a step-wise linear regression model. Correlation coefficients were negative in April and positive in June at all the stations. The relationships were confirmed by an analysis of regression equations. The regression equations also included coefficients for May and June which, however, were not statistically significant. Yield variation, described by regression equations of the dependence of oats yield on Sielianinov’s hydrothermal coefficient value was accounted for from 19 (Siedlce, Biała Podlaska) to 50% (Ostrołeka).
Źródło:: Journal of Ecological Engineering; 2015, 16, 3; 184-188
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Classification of precipitation intensity during vegetation season in central-eastern Poland (1971–2005)
Autorzy:: Radzka, E.
Powiązania:: https://bibliotekanauki.pl/articles/125047.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: number of days with precipitation
vegetation season
changes tendencies
central-eastern Poland
Opis:: The data used in this paper come from nine IMGW stations from central-eastern region of Poland and they were registered between the years 1971–2005. On the basis of daily precipitation sums analysis during vegetation season, the number of days with precipitation was determined in particular classes. In central-eastern Poland during vegetation season days with very little and little precipitation were noted most frequently. Very little precipitation occurred most frequently in April; little, moderate and moderately strong precipitation - in June, and strong precipitation - in July. Whereas very strong precipitation was noted most frequently in June and July. Days with very little and little precipitation were noted most frequently in northern and north-eastern part of the area examined. While the number of days with moderate, moderately strong and strong precipitation showed little spatial diversity. Very strong precipitation was noted the most frequently in the area of Legionowo and Ostroleka. The number of days with very little precipitation during vegetation season was decreasing in subsequent years of the study. Statistically significant negative directional coefficients of the trend were noted most frequently in April. The number of days with very strong precipitation was also decreasing significantly in most of the stations.
Źródło:: Journal of Ecological Engineering; 2014, 15, 3; 51-55
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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