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Tytuł:
Estimation of plant water requirements during sequences of days without precipitation in 2011-2015
Autorzy:
Wójcik, K.
Treder, W.
Zbudniewek, A.
Powiązania:
https://bibliotekanauki.pl/articles/101013.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
rainfall
evapotranspiration
growing season
Opis:
This paper presents data on daily precipitation totals from six meteorological stations and the climatic water balance for the stations located throughout Poland in 2011-2015. The following sequences of days without precipitation were distinguished: from 11 to 15 days, from 16 to 20 days, and of more than 20 days. The number of precipitation-free sequences during the growing season in 2011-2015 was highly variable. Over the studied period, there were from 1.0 rainless sequence in Wtelno to 2.4 such sequences in Gołębiów per one growing season. The most frequently occurring were sequences of 11-15 days, while those of 16-20 days were less frequent. In the years under analysis, all of the different sequences occurred most frequently in July, and the least frequently in April. The highest numbers of sequences without precipitation were recorded in the south-east of Poland (Zakalniki, Gołębiów).
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, III/2; 1187-1200
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of plant water requirements during sequences of days without precipitation in 2011-2015
Autorzy:
Wójcik, K.
Treder, W.
Zbudniewek, A.
Powiązania:
https://bibliotekanauki.pl/articles/101157.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
rainfall
evapotranspiration
growing season
Opis:
This paper presents data on daily precipitation totals from six meteorological stations and the climatic water balance for the stations located throughout Poland in 2011-2015. The following sequences of days without precipitation were distinguished: from 11 to 15 days, from 16 to 20 days, and of more than 20 days. The number of precipitation-free sequences during the growing season in 2011-2015 was highly variable. Over the studied period, there were from 1.0 rainless sequence in Wtelno to 2.4 such sequences in Gołębiów per one growing season. The most frequently occurring were sequences of 11-15 days, while those of 16-20 days were less frequent. In the years under analysis, all of the different sequences occurred most frequently in July, and the least frequently in April. The highest numbers of sequences without precipitation were recorded in the south-east of Poland (Zakalniki, Gołębiów).
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/1; 611-624
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
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
Artykuł
Tytuł:
Krzewienie się żyta w niskich temperaturach w okresie jesienno-zimowym
Tillering of rye at low temperatures in the autumn-winter period
Autorzy:
Doroszewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/337787.pdf
Data publikacji:
2005
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
krzewienie
okres wegetacyjny
żyto
growing season
rye
tillering
Opis:
Na podstawie przeprowadzonych doświadczeń z żytem stwierdzono, że faza krzewienia może przebiegać w stosunkowo niskich temperaturach. Gdy temperatura powietrza, mierzona na wysokości 2 m nad powierzchnią gruntu, wynosiła -3,2°C (średnia z 53 dni), przybyło 0,45 pędów żyta, gdy -2,5°C (średnia z 36 dni) - o prawie jeden pęd boczny, a gdy -2,5°C (średnia ze 175 dni) - o dwa pędy. Natomiast gdy temperatura wynosiła -0,4°C (średnia z 49 dni), liczba pędów zwiększyła się o 1,1, a gdy 1,2°C (średnia z 89 dni) - przybyło aż 11,6 pędów żyta. Krzewienie się w niskich temperaturach możliwe było w warunkach znacznej i długo zalegającej pokrywy śnieżnej, toteż rozwój roślin był uzależniony od temperatury najbliższego otoczenia. Proces krzewienia się następował już, gdy temperatura gleby wynosiła niewiele powyżej 0°C. Znaczne przyrosty liczby bocznych pędów żyta notowano w temperaturze niższej aż o 8,2 w 1998/1999 oraz 7,5°C w 1993/1994 i 1995/1996 od temperatury progowej 5°C, określającej początek i koniec wegetacji.
Growing season is a very important period in agriculture, which determines growth and yields of plants. The growing season commences when daily average air temperature is ≥ 5°C and ends when air temperature is ≥ 5°C. Experiments carried out with rye showed that a phase of tillering may proceed at a relatively low temperature. In a period of time, when air temperature measured 2 m above the ground surface was -3.2°C (average of 53 days), the number of shoots rose by 0.45, whereas at air temperature equal -0.4°C (average of 49 days) the number of shoots increased by 1.1 and by one shoot when air temperature was -2.5°C (average of 36 days). Furthermore, there were 11.6 more shoots when air temperature was 1.2°C (average of 89 days). The tillering of rye was possible at low temperature with considerably thick and long lasting snow cover. Growth of rye depended on temperature of the nearest surroundings (soil), the process of tillering occurred at a temperature just above 0°C. Remarkable increments in the number of side rye shoots were noticed at temperatures lower by 8.2 in 1998/1999 and 7.5°C in 1993/1994 and 1995/1996 then a threshold value of 5°C, which defines the beginning and the end of the growing season.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2005, T. 5, z. spec.; 107-118
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Patterns in the multiannual course of growing season in Central Europe since the end of the 19th century
Autorzy:
Szyga-Pluta, Katarzyna
Tomczyk, Arkadiusz M.
Piotrowicz, Katarzyna
Bednorz, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/52496096.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
growing season
air temperature
multiannual series
Central Europe
Opis:
The research identified patterns in the multiannual course of start and end dates, and length of growing season (GS) in Central Europe since the end of the 19th century in selected cities of Central Europe in the period 1893–2020. GS start in the analysed stations was characterised by high year-to-year variability, particularly in those located more southwards, i.e. in Prague and Vienna. A smaller variability occurred in GS end dates. The GS was subject to prolongation, although these changes in particular cities were uneven and had different causes. In Toruń and Potsdam, its increase was caused by a greater shift of the end date, and in the remaining stations, it was determined by its earlier start date. Two subperiods were distinguished that differ in terms of intensity of changes of the start and end dates, as well as the length of the GS. The intensification was observed recently.
Źródło:
Quaestiones Geographicae; 2023, 42, 1; 59-74
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Odmianowe i środowiskowe zróżnicowanie zawartości glikoalkaloidów w bulwach ziemniaka
The cultivar and environmental difference of glycoalkaloids content in potato tubers
Autorzy:
Trawczyński, Cezary
Wierzbicka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2198197.pdf
Data publikacji:
2011-12-29
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
glikoalkaloidy
lata uprawy
odmiany
ziemniak
cultivars
glycoalkaloids
growing season
potato
Opis:
Celem badań polowych przeprowadzonych w latach 2006–2009 było określenie zawartości glikoalkaloidów w bulwach nowych odmian ziemniaka (bardzo wczesne — Impala, Miłek, Velox, wczesne — Augusta, Ewelina, Nora, Oman, średnio wczesne — Elanda, Marlen, Meridian, średnio późna — Roko, późne – Medea, Kuras, Pokusa) z uwzględnieniem warunków klimatycznych w okresie wegetacji. Badania przeprowadzono na glebie lekkiej, nawożonej organicznie słomą i międzyplonem gorczycy białej. Nawożenie mineralne stosowano w dawce: 100 kg N∙ha-1, 39,2 kg P∙ha-1, 99,6 kg K∙ha-1. Sumaryczną zawartość glikoalkaloidów (cTGA) oznaczono kolorymetryczną metodą Bergersa. Stwierdzono, że zawartość glikoalkaloidów w bulwach ziemniaka w większym stopniu różnicowana była przez czynnik genetyczny-odmiany (50%) niż czynnik środowiskowy — warunki klimatyczne w latach (27%). Zawartość glikoalkaloidów wahała się od 29 mg·kg-1 w odmianie Impala do 134 mg·kg-1w bulwach odmiany Kuras. W roku 2007 o dużej ilości opadów i niskiej temperaturze powietrza w okresie wegetacji stwierdzono największą zawartość glikoalkaloidów w bulwach.
The aim of field experiment conducted in the years 2006–2009 was to assess glycoalkaloids content in tubers of new potato cultivars (very early — Impala, Miłek, Velox, early — Augusta, Ewelina, Nora, Oman, mid-early — Elanda, Marlen, Meridian, mid-late — Roko, late — Medea, Kuras, Pokusa) taking into consideration climate conditions in vegetation season. The investigations were carried out on the light soil fertilized organically with straw and aftercrop of white mustard. Mineral fertilization was applied in the doses of 100 kg N∙ha-1; 39,2 kg P∙ha-1; 99,6 kg K∙ha-1. The glycoalkaloids (cTGA) content was determined according to Bergers colorimetric method. It was found that the glycoalkaloids content in potato tubers was diversified stronger by genetic factor-cultivars (50%) than by environment factor-climate conditions in the years (27%). The content of glycoalkaloids varied from 29 mg·kg-1 for cultivar Impala to 134 mg·kg-1for cultivar Kuras. The highest glycoalkaloids content in tubers was detected in year 2007 with high quantity of rainfall and low air temperature.
Źródło:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2011, 262; 119-126
0373-7837
2657-8913
Pojawia się w:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Weather Conditions of Eastern Poland on Sweet Corn Yields Aand Length of Growing Season
Autorzy:
Rosa, R.
Kosterna-Kelle, E.
Franczuk, J.
Zaniewicz-Bajkowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/123662.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
air temperature
precipitation
yield
growing season
Zea mays L.
var saccharata
Opis:
The aim of the study was to determine the effect of weather components (air temperature, precipitation) on the growth, yield and the length of the growing season of sweet corn cultivated in eastern Poland. The results come from a field experiment conducted in 2006–2011. Weather conditions in the successive years of the study significantly modified the yield of ears, weight and number of formatted ears, high of plants and the length of the growing season of sweet corn. Good yielding of sweet corn favoured years with moderate air temperatures in July and uniform distribution of precipitation during the growing season. The highest yield of ears was found in 2011, the lowest in the very difficult in terms of weather 2006. The shortest growing season was characterized corn grown in the years 2006 and 2010 with the high air temperatures in July and August, the longest in the years 2009 and 2011, in which the temperatures in the period June-August were the lowest of all the years of research. Irrespective of the year of study, cv ‘Sheba F1’ was formatted eras with higher weight than cv ‘Sweet Nugget F1’.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 273-279
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Forest ecosystem as a source of CO2 during growing season: relation to weather conditions
Autorzy:
Taufarova, K.
Havrankova, K.
Dvorska, A.
Pavelka, M.
Urbaniak, M.
Janous, D.
Powiązania:
https://bibliotekanauki.pl/articles/26563.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
forest ecosystem
carbon dioxide
source
growing season
weather condition
Norway spruce
Opis:
Net ecosystem production reflects the potential of the ecosystem to sequestrate atmospheric CO2. Daily net ecosystem production of a mountain Norway spruce forest of the temperate zone (Czech Republic) was determined using the eddy covariance method. Growing season days when the ecosystem was a CO2 source were examined with respect to current weather conditions. During the 2005, 2006, and 2007 growing seasons, there were 44, 65, and 39 days, respectively, when the forest was a net CO2 source. The current weather conditions associated with CO2 release during the growing seasons were: cool and overcast conditions at the beginning or end of the growing seasons characterized by a 3-year mean net ecosystem production of -7.2 kg C ha-1 day-1; overcast or/and rainy days (-23.1 kg C ha-1 day-1); partly cloudy and hot days (-11.8 kg C ha-1 day-1); and overcast and hot days (-13.5 kg C ha-1 day-1). CO2 release was the highest during the overcast or/and rainy conditions (84%, average from all years), which had the greatest impact during the major production periods. As forests are important CO2 sinks and more frequent weather extremes are expected due to climate change, it is important to predict future forest carbon balances to study the influence of heightened variability in climatic variables.
Źródło:
International Agrophysics; 2014, 28, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ warunków wegetacji i przechowywania na kiełkowanie bulw ziemniaka
Influence of weather and storage conditions on sprouting of potato tubers
Autorzy:
Czerko, Zbigniew
Grudzińska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2198649.pdf
Data publikacji:
2014-03-31
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
kiełki
opady
przechowywanie
warunki wegetacji
ziemniak
growing season
potato
precipitation
sprouting
storage
Opis:
Celem doświadczenia było określenie wpływu czynników hydrotermicznych w okresie wegetacji i temperatury 3°C, 5°C i 8°C podczas przechowywania na termin rozpoczęcia kiełkowania bulw ziemniaka. Ziemniaki przechowywane w temperaturze 8°C rozpoczynały kiełkowanie średnio w drugiej dekadzie stycznia. Po okresie przechowywania długość kiełków u badanych odmian wynosiła 84 mm. Temperatura przechowywania 5°C spowodowała opóźnienie terminu kiełkowania średnio o 4 dekady w stosunku do temperatury 8°C. Przechowywanie bulw w 3°C opóźniło rozpoczęcie kiełkowania średnio o 2 miesiące w odniesieniu do temperatury 8°C. Największy wpływ na termin rozpoczęcia kiełkowania w różnych latach miały opady występujące podczas wegetacji. Większe opady, a także wyższa wartość współczynnika Sielianinowa w okresie wegetacji spowodowały wydłużenie okresu spoczynku podczas przechowywania. O terminie rozpoczęcia kiełkowania poszczególnych odmian i warunków wegetacji decydowały stopniodni wyliczone w okresie od września do rozpoczęcia kiełkowania podczas przechowywania (w zakresie 5°–8°C).
The beginning of sprouting and sprouts’ length during storage at temperature 3°C, 5°C, 8°C and influence of weather factors in vegetation period on date of beginning of sprouting was evaluated. The beginning of sprouting of potatoes stored at temperature 8°C depended on varieties and begun in 2nd decade of January. After storage period, the length of sprouts was 84 mm. The 5°C temperature of storage caused delay in sprouting beginning of about 4 decades in relation to storage at temperature 8°C. Potatoes storage at 3°C caused delay in the beginning of sprouting of about 2 months in relation to storage at 8°C. Sum of rainfall during vegetation season had the largest influence on the date of sprouting beginning. Higher rainfall and also higher Sielianinov coefficient in vegetation season caused an extension of the dormancy period. The date of the start of sprouting for each variety and growing conditions was determined by degree-days calculated for the period from September to the beginning of sprouting during storage (at the 5°–8°C).
Źródło:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2014, 271; 119-127
0373-7837
2657-8913
Pojawia się w:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tendencje zmian długości termicznego okresu wegetacyjnego w północno-wschodniej Polsce
Trends in the length of the thermal growing season in the north-eastern Poland
Autorzy:
Chojnacka-Ożga, L.
Ożga, W.
Powiązania:
https://bibliotekanauki.pl/articles/986668.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zmiany klimatyczne
okres wegetacji
dlugosc okresu wegetacji
dlugosc termicznego okresu wegetacji
zmiany dlugoterminowe
Polska Polnocno-Wschodnia
change climate
extended of growing season
variability of parameters of growing season
Opis:
In the context of climate change and global warming, a growing number of studies reported lengthening of the growing season for most of the Northern Hemisphere, which is associated with increase of air temperature. Evidences of the increase of the growing season length were noted through satellite data and phonological and meteorological observations. This article presents the studies on the temporal and spatial tendencies in the thermal growing season (TGS) length in north−eastern Poland in 1951−2015. The analyses were conducted using long−term and homogeneity daily data sets from 13 meteorological stations (fig. 1). The dates of beginning and end of the TGS were determined by Huculak−Makowiec method. Trends in the TGS length as well as start and end dates were analysed for the whole study period as well as for successive 30−years periods: 1951−1980, 1961−1990, 1971−2000 and 1981−2010. The results show a general increase of the length of the TGS in the north−eastern Poland in 1951−2015 period, however, there are spatial and temporal differences in TGS evolution. In the western and central part of the region, the growing season in the past 65 years became ca. 20 days longer, while in the eastern part the lengthening of TGS was weaker and amounted to 7−10 days. Most of this change is due to earlier onset of the TGS in spring (average for the western part =2.1 days/10 years, while for the eastern one – 1.2 days/10 years). The observed trends and tendencies show spatial and temporal variability in TGS evolution. Trends in parameters of TGS, calculated for 30−years period, varied directionally and spatially with no significant trends before 1980. In the period 1981−2010 the growing season was longer than in the previous years, the largest increases were found in the central part of the region (1.2 days/year), while the smallest in the south−eastern part (0.5 day/year). Since the 1980s the frequency of long growing seasons increased. A particularly large and steady increase of TGS occurred over the first 15 years of the 21st century. Length as well as start and end dates of the TGS displayed large inter−annual and decadal variability with tendencies for increased range of variability.
Źródło:
Sylwan; 2018, 162, 06; 479-489
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie metody Gumińskiego i teledetekcji satelitarnej w aspekcie wyznaczania dat początku okresu wegetacyjnego na obszarze Polski
Comparison of Gumiński and satellite remote sensing methods in terms of determining the dates of the onset of the growing season in Poland
Autorzy:
Bartoszek, K.
Siłuch, M.
Powiązania:
https://bibliotekanauki.pl/articles/401083.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
teledetekcja satelitarna
okres wegetacji
MODIS
EVI
aktywność fotosyntetyczna
remote sensing
growing season
photosynthetic activity
Opis:
Celem niniejszej pracy było porównanie dat początku okresu wegetacyjnego (OW) na obszarze Polski w okresie 2001–2010, które wyznaczono na podstawie dwóch niezależnych metod. Do wyznaczania dat metodą Gumińskiego wykorzystano średnie miesięczne wartości temperatury powietrza z punktów gridowych rozmieszczonych na terenie kraju. Natomiast do określenia dat początku OW metodą teledetekcji satelitarnej wykorzystano dane pochodzące z NASA LP DAAC, które były wynikiem pomiarów wykonywanych przez wielospektralny skaner MODIS umieszczony na satelitach Terra i Aqua. Wykazana została znaczna zgodność średnich terminów początku OW w Polsce wyznaczonych tymi dwoma metodami, co może sugerować istotny wpływ czynnika termicznego na wzrost aktywności fotosyntetycznej roślinności po okresie zimowym. Obydwie metody potwierdziły, że przeciętnie najwcześniej początek OW występuje w południowo-zachodniej części kraju, natomiast najpóźniej w Polsce Północnej i na obszarach górskich.
The aim of the paper is to compare the dates of the onset of the growing season in Poland in the period 2001–2010, which were determined on the basis of two independent methods. The dates determined by Gumiński method based on gridded monthly mean air temperature over Poland area. In turn, satellite data extracted from NASA LP DAAC product, which were the result of measurements performed with multispectral scanner (MODIS) on the Terra and Aqua satellites. It was demonstrated that the average dates of the onset of the growing season in Poland determined by two methods did not differ significantly. It may suggest a significant impact of thermal factor on the increase in the photosynthetic activity of vegetation after the winter months. Both methods confirmed that the earliest average dates of the onset of the growing season occur in the southwestern part of the country, and the latest in northern Poland and in the mountain areas.
Źródło:
Inżynieria Ekologiczna; 2015, 45; 99-105
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency of the magnetic treatment of broad bean seeds cultivated under experimental plot conditions
Autorzy:
Podlesny, J.
Pietruszewski, S.
Podlesna, A.
Powiązania:
https://bibliotekanauki.pl/articles/24545.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
magnetic field
plant development
magnetic treatment
plant loss
growing season
yield
broad bean
seed
Źródło:
International Agrophysics; 2004, 18, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 24

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