40 research outputs found
Formation of piping forms on Mt. Kińczyk Bukowski (High Bieszczady Mountains)
Piping is a process of mechanical flushing of particles by underground
streams, which leads to the formation of surface and subsurface forms. This process
has a role in development of Bieszczady Mountains landscape. However, there is not
enough investigations which present geomorphological impact of this process. This paper
shows preliminary results of research undertaken on NE slope of Kińczyk Bukowski
above the timberline. The geodesic measurements were performed in order to show the
morphometry of chosen piping forms in research area
Precipitation as a factor triggering landslide activity in the Kamień massif (Beskid Niski Mts, Western Carpathians)
On the landslide slope in the Beskid Niski Mts (Western Carpathians) 48 silver firs were cored
for dendrochronological samples. Tree-ring widths were measured for the upslope and downslope
sides of each stem. Events of landslide activity were dated using the method of the eccentricity index.
The tree-ring record of landsliding was compared with the occurrence of precipitation in the study
area. The nature of the relation between precipitation and landsliding is complex. We have found
a statistically significant correlation between landsliding and the number of days with 24-hour precipitation
totals above 20 mm and high 3-, 5-, and 10-day precipitation totals during winter half-years.
Thus landsliding in the Kamień massif is triggered mainly by high precipitation totals in the preceding
winter period. No such relation was found for annual precipitation totals and different types of
precipitation totals in the summer period. Single landsliding events related to high summer precipitation
totals were found, but the correlation is not statistically significant. In addition some landsliding
events are 1–2 years lagged after the occurrence of high long-term precipitation totals. It seems
that the strongest landsliding events resulted from sequences of wet summer, wet winter and once
again wet summer seasons directly following one another