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1

Chemistry of raw humus vs. chemistry of atmospheric precipitation on the example of pine forests of the Pomeranian Lakeland

100%

Wicik B., Mikulska M.

Miscellanea Geographica. Regional Studies on Development

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2004

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vol. 11

51-55

EN

This research, conducted for the purposes of the protection of the National Park Bory Tucholskie, contains the results of the investigation of the chemical composition of humus (forest litter) and of atmospheric precipitation. The gathered material allowed determining the fate (accumulation or removal) of chemical elements contained in the pine forest humus as well as to compare the abundance of nutrients in humus and in atmospheric precipitation.

2

The climatic background of agricultural production in Poland (1951 - 2000)

88%

Żmudzka E., Kwiatkowska J. M.

Miscellanea Geographica. Regional Studies on Development

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2004

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vol. 11

127-137

EN

This article presents the results of studies conducted on the variability of thermal and precipitation conditions in Poland in the second half of the 20th century, especially taking into consideration periods which were unfavorable for agricultural production. Averaged spatial temperatures and precipitation totals from consecutive years 1951 to 2000 were used. A significant increase in spring temperatures was noted, while the winters also became warmer. This had a significant effect upon the change of the thermal vegetation period's duration. No changing trends were noted with regard to the amount of precipitation.The analysis of the seasonal structure during the anomalous years, with regard to temperature and the amount of precipitation, made it possible to pinpoint years particularly unfavorable for agricultural production. There was a certain repeatability of unfavorable conditions, tied to the existence of a relatively stable 8-year cycle of temperature change, which was especially noticeable during the wintertime. During the last two decades of the 20th century, high temperature values, occurring also in the summertime, in combination with insufficient precipitation, contributed to the occurrence of dry spells and even periods of drought. The occurrence of dry spells during the vegetation period and the extreme shortening of the vegetation period have a significant effect upon the amount of grain crop production.

3

Zmienność przestrzenna i czasowa opadów atmosferycznych w Japonii (1901–2015)

63%

Kopaczka D.

Prace Geograficzne

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2018

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issue 153

49-67

EN

The purpose of the study is to characterize the spatial and temporal variability of precipitation in Japan. This article uses data from 55 stations from the years 1901–2015. Annual patterns and preconditions of rainfall were analyzed. The range of variations for individual stations, the time of maximum and minimum occurrence, and the coefficients of precipitation irregularity were calculated. The temporal variability of rainfall was investigated using the linear trend method, the significance of which was determined by the tau-Kendall coefficient.The precipitation pattern in Japan shows a very strong variation throughout the country. The largest variability of annual precipitation totals is in the Hokuriku, Shikoku area along the Pacific Ocean and southeastern Kyushu with the archipelago of the Ryuku islands. The maximum monthly precipitation figures show a greater variability than the minimum values, and the time of their occurrence in each region is conditioned by the monsoon circulation and the location to the flow of major air masses and orographic barriers. Japan is characterized by a statistically insignificant decrease in the annual rainfall in most areas, but the variability of precipitation in different months and seasons shows different directions and the rate of change depending on the region.

PL

Celem opracowania jest charakterystyka przestrzennego i czasowego zróżnicowania warunków opadowych w Japonii. W artykule wykorzystano dane z 55 stacji z lat 1901–2015. Analizowano przebieg roczny i wieloletni opadów oraz ich geograficzne i cyrkulacyjne uwarunkowania. Określono zakres zmienności dla poszczególnych stacji, czas występowania maksimum i minimum, a także obliczono współczynniki nieregularności opadów. Zmienność czasową opadów badano przy pomocy metody trendu liniowego, którego istotność określono współczynnikiem tau-Kendalla. Opady atmosferyczne w Japonii wykazują silne zróżnicowanie na całym obszarze kraju. Największa zmienność rocznych sum opadów cechuje obszar Hokuriku, Sikoku wzdłuż Oceanu Spokojnego oraz południowo-wschodnie Kiusiu z archipelagiem wysp Riukiu. Maksymalne miesięczne sumy opadów wykazują większą zmienność niż wartości minimalne, a czas ich występowania w poszczególnych regionach warunkuje cyrkulacja monsunowa oraz lokalizacja względem napływu głównych mas powietrza i barier orograficznych. Japonię cechuje nieistotny statystycznie spadek rocznej sumy opadów na większości obszaru, natomiast zmienność sum opadów w poszczególnych miesiącach i sezonach wykazuje różne kierunki i tempo zachodzących zmian w zależności od regionu.

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2 Miscellanea Geographica. Regional Studies on Development

1 Prace Geograficzne

1 Kopaczka D.

1 Kwiatkowska J. M.

1 Mikulska M.

1 Wicik B.

1 Żmudzka E.

1 2018

2 2004

Chemistry of raw humus vs. chemistry of atmospheric precipitation on the example of pine forests of the Pomeranian Lakeland

The climatic background of agricultural production in Poland (1951 - 2000)

Zmienność przestrzenna i czasowa opadów atmosferycznych w Japonii (1901–2015)