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Wyszukujesz frazę "Swiechowicz, J." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Ekstremalne spłukiwanie i erozja linijna na stokach użytkowanych rolniczo w polskich Karpatach fliszowych
Extreme sheet and rill erosion on agricultural slopes in the flysch Polish Carpathians
Autorzy:
Swiechowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/2084618.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
erozja liniowa
rolnictwo
Karpaty Zewnetrzne
splukiwanie
Opis:
Sheet and rill erosion plays an important role in the transformation of agricultural slopes in the Carpathians. It is an episodic process of short duration which can take place both in the winter and summer hydrological half-years as a result of meteorological short-term and high-intensity events like short downpours, intense continuous rainfall and rapid thaws. The climate of the Carpathians is characterized by the variability of its parameters caused by the growing height of the mountain belts from the north to the south as well as by the considerable latitudinal extent of the mountain range. The summer season is crucial to annual precipitation totals. Maximum daily precipitation totals are the result of intense continuous rainfall (mainly in June and Juty) and short local downpours (mainly in May). In the flysch Polish Carpathians the role of sheet and rill erosion on agricultural slopes is different in areas characterized by mountain relief (Beskidy Mountains) and foothill relief, because the two regions have different water circulation patterns and weathered material displacement patterns. Another crucial factor that helps account for the differences in the effectiveness of sheet and rill erosion is vegetation cover. The lack of sufficiently long measurement series or diversification between regions of the Carpathians makes it difficult to determine the frequency of extreme sheet and rill erosion and their recurrence, which means it is not possible to define the quantitative criteria for establishing extreme sheet and rill erosion processes for the whole area of the Polish Carpathians. The aim of this paper is to examine the criteria on the basis of which extreme sheet and rill erosion on agricultural slopes has so far been determined as well as the effects and role of the process in the transformation of the slopes.
Źródło:
Prace i Studia Geograficzne; 2010, 45; 29-48
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spłukiwanie gleby na użytkowanych rolniczo stokach pogórskich w latach hydrologicznych 2007-2008 w łazach (Pogórze Wiśnickie)
Slopewash on agricultural foothill slopes in hydrological years 2007-2008 in Lazy (Wisnicz Foothills)
Autorzy:
Swiechowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/2084638.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
lata 2007-2008
Pogorze Wisnickie
gleby
splukiwanie
tereny rolnicze
uzytkowanie rolnicze
badania hydrologiczne
erozja gleb
Opis:
The paper presents the results of slopewash studies carried out in hydrological years 2007-2008 on 7 runoff plots located within the marginal part of the Carpathian Foothills near the Research Station of the Institute of Geography and Spatial Management in Łazy. All the plots were 2 m wide. Four of them were 22.1 m long while the remaining three were 11.1, 5.5 and 2.8 m in length. All the plots were closed with 2 m Gerlach troughs. Eroded material was collected in tanks placed by every plot, while runoff was registered by means of lymnigraphs. The inclination of the plots' surface was 8°. Studies were carried on silty pseudogley soil (Stagnic Luvisols). Precipitation totals amounted to 814, l mm (2007) and 585,3 mm (2008) and these values significantly ditfered from the mean precipitation total for 1987-2008 hydrological years (661,5 mm). In 2007 the rainfall erosivity factor (EI₃₀) was 1628.9 MJ mm ha⁻¹h⁻¹ and turned out to be almost two times as much as it was for 2008 (667.0 MJ mm ha⁻¹h⁻¹). In the summer halfyear of 2007 hydrological year there were 13 slopewash events whereas in 2008 there were none. Mean annual soil erodibility [K] reached the value of 0.0377 Mg ha h MJ⁻¹mm⁻¹ha⁻¹, which is significantly lower than the value calculated on the basis of the USLE model (0.0738). Runoff varied considerably in the summer half-year. Maximum values of the runoff coefficient amounted to 39.2% for the potato, 34.2% for the fallow land, 16.3% for the winter wheat and 12.0% for the meadow. Mean annual slopewash values amounted to 31.4 kg ha⁻¹ for winter wheat, 41.9 kg ha⁻¹ for meadow, 43,396.0 kg ha⁻¹ for potato and 47,340.2 kg ha⁻¹ for fallow. The C factor value for the whole vegetation period of the potato was 0.92, and 0.0008 for the winter wheat.*
Źródło:
Prace i Studia Geograficzne; 2010, 45; 243-263
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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