Estimating the Effect of Deforestation on Runoff in Small Mountainous Basins in Slovakia
| Autor: | Marija Mihaela Labat, Gabriel Földes, Silvia Kohnová, Kamila Hlavčová, Michaela Danáčová |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Hydrology
Return period land use change geography lcsh:TD201-500 geography.geographical_feature_category lcsh:Hydraulic engineering Geography Planning and Development Drainage basin Climate change forest area Aquatic Science Biochemistry windstorms Current (stream) climate change lcsh:Water supply for domestic and industrial purposes Deforestation lcsh:TC1-978 Environmental science Hydrometeorology Land use land-use change and forestry Surface runoff Water Science and Technology |
| Zdroj: | Water, Vol 12, Iss 3113, p 3113 (2020) Water Volume 12 Issue 11 |
| ISSN: | 2073-4441 |
| Popis: | The paper aims to assess the impact of deforestation due to windstorms on runoff in small mountain river basins. In the Boca and Ipoltica River basins, changes in forested areas were assessed from available historical and current digital map data. Significant forest losses occurred between 2004 and 2012. During the whole period of 1990&ndash 2018, forested areas in the Boca river decreased from 83% to 47% and in the Ipoltica River basin from 80% to 70%. Changes in runoff conditions were assessed based on an assessment of changes in the measured time series of the hydrometeorological data for the years 1981&ndash 2016. An empirical hydrological model was used to determine the design peak discharges before and after significant windstorms were estimated for different rain intensities and return periods. The regional climate scenario for the period 2070&ndash 2100 was used to assess the current impact of climate change and river basin deforestation on predicted changes in design floods in the coming decades. The effect of deforestation became evident in the extreme discharges, especially in future decades. In the Boca River basin, the estimated design floods increased by 59%, and in the Ipoltica River basin by 172% in the case of the 100-year return period. |
| Databáze: | OpenAIRE |
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