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3. Rainfall and runoff regime trends in mountain catchments: case study area: the upper Hron River basin, Slovakia

Creator:
Blahušiaková, Andrea and Matoušková, Milada
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
trend analysis, rainfall-runoff regime, Mann-Kendall test, IHA software, Hron River basin, 7, and 556
Language:
Slovak
Description:
This paper presents an analysis of trends and causes of changes of selected hydroclimatic variables influencing the runoff regime in the upper Hron River basin (Slovakia). Different methods for identifying trends in data series are evaluated and include: simple mass curve analysis, linear regression, frequency analysis of flood events, use of the Indicators of Hydrological Alteration software, and the Mann-Kendall test. Analyses are performed for data from two periods (1931-2010 and 1961-2010). The changes in runoff are significant, especially in terms of lower QMax and 75 percentile values. This fact is also confirmed by the lower frequency and extremity of flood events. The 1980s are considered a turning point in the development of all hydroclimatic variables. The Mann-Kendall test shows a significant decrease in runoff in the winter period. The main causes of runoff decline are: the considerable increase in air temperature, the decrease in snow cover depth and changes in seasonal distribution of precipitation amounts., Andrea Blahušiaková, Milada Matoušková., and Obsahuje bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Západokarpatská pěnovcová slatiniště: příběh dlouhý 17 tisíc let

Creator:
Michal Horsák, Michal Hájek, Petra Hájková, Lubomír Tichý, and Daniel Dítě
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Hydrologie, slatiny, mokřady, živé organismy, mikroorganismy, Karpaty (pohoří), 7, and 556
Language:
Czech
Description:
Our long-term palaeoecological research on plant and mollusc assemblages in more than 170 isolated fen sites in the Western Carpathians proved a sharp gradient of species turnover spans from west to east, mainly in the distribution of so-called re - lict species, independent of any ecological difference among sites. Fossil evidence and radiocarbon dating evidenced that sites in the outer flysch part (e.g. border area between the Czech and the Slovak Republics) are much younger than those located in the Inner Western Carpathians, host many relict species and have a Holocene continuity. We also confirmed that se - veral presumable relict species are signifi - cantly related to old sites originating from the Pleistocene/Holocene boundary. and Michal Horsák a kol.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public