Floods types in a mountain catchment: The Ochotnica River, Poland

This paper presents the results of a study on floods in the Ochotnica River catchment during forty years of hydrological observations (1972–2011). The Ochotnica River is located in the Gorce Mountains, in the Polish Western Carpathians. The characteristics of floods in the Ochotnica River channel were analyzed using limnigraphic records of water levels at the Tylmanowa gauging station and of precipitation based on data from the Polish Institute of Meteorology and the Water Management Station at Ochotnica Górna. Flood types were determined. The predominant type of floods in the Ochotnica River are normal floods with a discharge of 3.80 to 11.94 m³/s in winter and 4.74 to 16.40 m³/s in summer. The dominant recent process is incision, at an average speed of 3.2 cm/year. Similar results have been observed in other mountain rivers in Europe

Ocena wielkości rozbryzgu gleby na stoku pogórskim (Karpaty fliszowe, zlewnia Bystrzanki)

The article presents the results of the splash on the experimental plots on the foothill slope (with gradient 11°) with a black fallow and meadows and also plots on the foodplain with black fallow. The study was based on funnels method. The analysis of the results of research conducted from May to August 2012 showed that the size of the splash mainly depends on the kinetic energy of rain and gradient. Moreover, the splash on black fallow exceeds even 95 times the splash in the plots with meadow and 20 times in the floodplain plots without vegetation. Soil particles on the slope are moved to a maximum height of 40 cm down the slope and about 30 cm up the slope, mainly during high intensity rainfall. Furthermore, the sand grains are more easily thrown by splash than clay material.Artykuł nie zawiera abstraktu w jezyku polskim

A spatial and temporal analysis of land use changes in two mountain valleys: with and without dam reservoir (Polish Carpathians)

This study analyzed the temporal and spatial changes in land use taking place in two adjacent river valleys, located within the Polish Carpathians. The land use in 1977 and 2009 was presented for selected areas. In one of the valleys, a dam has been operating since 1994 along with a retention reservoir, which is an additional factor influencing the direction and scale of the land use changes. An analysis using GIS techniques showed that the general directions of transformation in both valleys in the land use structure are similar but with different intensity. In studied valleys a decrease of area with agricultural land and gradual increase in the forested area have been observed. In the valley with the reservoir few more changes were noticed. The decrease of the forested area by 5.5% and farmland by 8.2% on the areas submerged by reservoir was observed. The strip fields pattern has been changed into more dispersed. The road network development was also observed, as well as the change of nature of residential/agricultural buildings into residential/recreational

A Spatial and Temporal Analysis of Land Use Changes in Two Mountain Valleys: with and without Dam Reservoir (Polish Carpathians)

This study analyzed the temporal and spatial changes in land use taking place in two adjacent river valleys, located within the Polish Carpathians. The land use in 1977 and 2009 was presented for selected areas. In one of the valleys, a dam has been operating since 1994 along with a retention reservoir, which is an additional factor influencing the direction and scale of the land use changes. An analysis using GIS techniques showed that the general directions of transformation in both valleys in the land use structure are similar but with different intensity. In studied valleys a decrease of area with agricultural land and gradual increase in the forested area have been observed. In the valley with the reservoir few more changes were noticed. The decrease of the forested area by 5.5% and farmland by 8.2% on the areas submerged by reservoir was observed. The strip fields pattern has been changed into more dispersed. The road network development was also observed, as well as the change of nature of residential/agricultural buildings into residential/recreational