- Tytuł:
-
Warunki termiczne powietrza na zrębie zupełnym i gnieździe
Air temperature on the clear-cut and the gap - Autorzy:
-
Chojnicka-Ożga, L.
Ożga, W.
Andrzejczyk, T. - Powiązania:
- https://bibliotekanauki.pl/articles/985725.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
lesnictwo
lasy
zrab zupelny
zrab gniazdowy
warunki termiczne
temperatura powietrza
zroznicowanie przestrzenne
zroznicowanie temperatur
forest
felling site
air temperature
late frost
heat waves - Opis:
- The aim of the study was to determine the spatial variation of air temperature on the clear−cut and gap as well as to compare the distribution of thermal conditions on both areas. The research was carried out in Rogów Forest Experimental Station (51.827023°N, 19.922315°E) on a clear−cut with a width of 60 m and on a gap (of an ellipsoid shape; 40×70 m). The measurements were carried out in two series: spring−summer, in the period when the height of the sun during the day conditioned inflow of direct solar radiation to any surface (May−August 2006), and autumn, when direct radiation was limited by neighboring stands (October−November 2006). Average values of air temperature on the gap in the spring−summer period differed in individual parts by 2.2°C, while on the clear−cut by 1.0°C. In the autumn, thermal diversity on both research plots was similar (0.8°C on average). The thermal diversity within the research plots was particularly marked in the case of extreme air temperature values. Differences between minimum temperature values in the spring−summer period amounted to 1.8°C on the clear−cut, and 1.3°C on the gap, while in the autumn to 1.0°C on both research plots. Higher differentiation occurred in the case of the maximum temperature: the differences in spring−summer equaled 3.1°C on the clear−cut and 8.7°C on the gap, and in the autumn 2.7 and 3.1°C, respectively. In May, three late frost days occurred on the clear−cut, while on the gap the no frost was recorded. All late frost situations occurred during radiation weather characterized by weak wind blowing across the clear−cut. The diurnal course of air temperature in the spring−summer period was dependent on the range of shadow of the position, while in the autumn these trends were similar in each position.
- Źródło:
-
Sylwan; 2019, 163, 08; 655-664
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki
Artykuł