In: Journal of Hydrology and Hydromechanics, vol. 67, no. 4
András Herceg - Reinhard Nolz - Péter Kalicz - Zoltán Gribovszki
Details:
Year, pages: 2019, 384 - 392
Language: eng
Keywords:
Water balance; Plant available water; Weighing lysimeter; Regional Climate Model.
Original source URL: http://www.ih.sav.sk/jhh
About article:
The current and ongoing climate change over Europe can be characterized by statistically significant warming
trend in all seasons. Warming has also an effect on the hydrological cycle through the precipitation intensity. Consequently,
the supposed changes in the distribution and amount of precipitation with the continuously increasing temperature
may induce a higher rate in water consumption of the plants, thus the adaptation of the plants to the climate change
can be critical. The hydrological impact of climate change was studied based on typical environmental conditions of a
specific agricultural area in Austria. For this purpose, (1) a monthly step, Thornthwaite-type water balance model was established
and (2) the components of the water balance were projected for the 21st century, both (a) with a basic rooting
depth condition (present state) and (b) with a (hypothetically) extended rooting depth (in order to evaluate potential adaption
strategies of the plants to the warming). To achieve the main objectives, focus was set on calibrating and validating
the model using local reference data. A key parameter of the applied model was the water storage capacity of the soil
(SOILMAX), represented in terms of a maximum rooting depth. The latter was assessed and modified considering available
data of evapotranspiration and soil physical properties. The adapted model was utilized for projections on the basis of
four bias corrected Regional Climate Models. An extended rooting depth as a potential adaptation strategy for effects of
climate change was also simulated by increasing SOILMAX. The basic simulation results indicated increasing evapotranspiration
and soil moisture annual mean values, but decreasing minimum soil moisture for the 21st century. Seasonal examination,
however, revealed that a decrease in soil moisture may occur in the growing season towards to the end of the
21st century. The simulations suggest that the vegetation of the chosen agricultural field may successfully adapt to the
water scarcity by growing their roots to the possibly maximum.
How to cite:
ISO 690:
Herceg, A., Nolz, R., Kalicz, P., Gribovszki, Z. 2019. Predicting impacts of climate change on evapotranspiration and soil moisture
for a site with subhumid climate. In Journal of Hydrology and Hydromechanics, vol. 67, no.4, pp. 384-392. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2019-0017
APA:
Herceg, A., Nolz, R., Kalicz, P., Gribovszki, Z. (2019). Predicting impacts of climate change on evapotranspiration and soil moisture
for a site with subhumid climate. Journal of Hydrology and Hydromechanics, 67(4), 384-392. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2019-0017
About edition:
Publisher: VEDA, Publishing House of the Slovak Academy of Sciences, Bratislava, Slovakia
Published: 15. 12. 2019