Modelling impacts of different climate change scenarios on soil water regime of a Mollisol

Climate, hydrology and vegetation are closely linked at local, regional and global scales. The recent land use and plant production systems are adapted to the present climatic conditions. Thus, studies on the influence of possible climate change scenarios on the water and heat regimes of the soil-plant-atmosphere system are important in order to work out plant production strategies, adjusted to changed conditions. In this study the effect of two possible climate change scenarios on the soil water regime of a Chernozem soil was estimated for a Hungarian site. Soil water content dynamics simulated for different conventional and soil conserving soil tillage systems were evaluated, using the SWAP soil water balance simulation model. The combined effect of different soil tillage systems and climate scenarios was analysed. Climate scenarios were represented through the cumulative probability function of the annual precipitation sum. The SWAP model was calibrated against the measured in the representative soil profiles soil water content data. The site- and soil-specific parameters were set and kept constant during the scenario studies. According to the simulation results, increase in the average growing season temperature showed increase in climate induced soil drought sensitivity. The evaluated soil water content dynamics indicated more variable and less predictable soil water regime compared to the present climate. It was found that appropriate soil tillage systems that are combined with mulching and ensure soil loosening could reliably decrease water losses from the soil. From this aspect cultivator treatment created the most favourable for the plants soil conditions. It was concluded that soil conserving soil management systems, adapted to local conditions could contribute to soil moisture conservation and could increase the amount of plant available water under changing climatic conditions.

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Modeling the Soil Water Regime in the Framework of Climate Change Studies

Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing ◽

10.4203/ccp.102.191 ◽

2013 ◽

Author(s):

M. Cisty ◽

J. Skalova ◽

M. Pasztorova ◽

J. Bezak ◽

T. Meszaros

Keyword(s):

Climate Change ◽

Soil Water ◽

Water Regime ◽

Soil Water Regime

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Influence of Climate Change on Soil Water Regime in Koprivnica-Križevci County

Ekológia (Bratislava) ◽

10.2478/eko-2014-0018 ◽

2014 ◽

Vol 33 (2) ◽

Author(s):

Andrija Spoljar ◽

Ivica Kisic ◽

Tomislava Peremin Volf ◽

Dragutin Kamenjak ◽

Drazen Kaucic

Keyword(s):

Climate Change ◽

Water Balance ◽

Soil Water ◽

Water Deficit ◽

Water Regime ◽

Linear Trend ◽

Mean Annual Temperature ◽

Soil Water Regime ◽

Plant Water Potential ◽

Climate Station

AbstractSpoljar A., Kisic I., Peremin Volf, T., Kamenjak D., Kaucic D.: Influence of climate change on soil water regime in Koprivnica-Krizevci County. Ekológia (Bratislava), Vol. 33, No. 2, p. 178-187, 2014.The influence of climate change on soil water regime was investigated in the area of Koprivnica- -Krizevci County (Republic of Croatia). Water balance calculations were done for three climatic stations using Thornthwaite and Palmer water balance methods. In the 18-year period (from 1991 to 2008), compared with the previously observed 30-year period (from 1961 to 1990), the increase in average mean annual temperature was 1°C. Regarding the global warming, there was an increase in plant water potential during the investigated period. Compared with the previous period and according to Thornthwaite and Palmer methods, there was an increase in water deficit. Negative linear trend in precipitation was detected for all climate stations in the investigated area (p > 0.05) as well as positive linear trend in mean annual temperature (p < 0.05). The calculation of linear trend in water deficit in soil, according to Thornthwaite method, shows that by the year 2020 there could be an increase in water deficit by an average of 13 mm (p > 0.05), whereas according to the Palmer method there could be an increase by an average of 9 mm (p < 0.05 only for the climate station in Krizevci).

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Impact of expected climate change on soil water regime under different vegetation conditions

ENERGYO ◽

10.1515/energyo.0011.00016 ◽

2018 ◽

Author(s):

Csilla Farkas ◽

Györgyi Gelybó ◽

Zsófia Bakacsi ◽

Ágota Horel ◽

Andrea Hagyó ◽

...

Keyword(s):

Climate Change ◽

Soil Water ◽

Water Regime ◽

Soil Water Regime

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Climate sensitivity of soil water regime of different Hungarian Chernozem soil subtypes

Biologia ◽

10.2478/s11756-009-0085-8 ◽

2009 ◽

Vol 64 (3) ◽

Cited By ~ 3

Author(s):

Hilda Hernádi ◽

Csilla Farkas ◽

András Makó ◽

Ferenc Máté

Keyword(s):

Soil Water ◽

Climate Sensitivity ◽

Water Regime ◽

Scaling Factor ◽

Cumulative Distribution ◽

Soil Profiles ◽

Climate Change Scenarios ◽

Chernozem Soil ◽

Soil Water Regime ◽

Reference Soil

AbstractIn this study the possible effects of two predicted climate change scenarios on soil water regime of Hungarian Calcic Chernozem soils has been investigated. Soil profiles classified as Calcic Chernozem — in total 49 — were selected from the MARTHA soil physical database that incorporates soil data at national scale. These profiles were subdivided into three groups (sandy loam, loam and clayey loam) in accordance with their mechanical composition. Soil water retention curves were scaled separately for each of the three textural groups, using similar media scaling in order to represent the variability of soil hydrophysical data with one parameter, the scaling factor (SF). Reference soil profiles were chosen according to the cumulative distribution function of the scaling factor, six for each textural group. Daily downscaled meteorological data from A2 and B2 climate scenarios of the Hadley Centre (2070–2100) and data from a reference period (RF, 1961–1990) were used in this study to characterize different climatic situations. Nine representative years were selected in case of all the three scenarios, using the cumulative probability function of the annual precipitation sum. Scenario analyses were performed, validating the SWAP soil water balance simulation model for the 18 reference soil profiles and 27 representative years in order to evaluate the expected changes in soil water regime under different from the present (RF) climatic conditions (A2 and B2 scenarios). Our results show that the scaling factor could be used as a climate sensitivity indicator of soil water regime. The large climate sensitivity of the majority of Chernozem soil subtypes water regime has been proven.

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Impact of expected climate change on soil water regime under different vegetation conditions

Biologia ◽

10.2478/s11756-014-0463-8 ◽

2014 ◽

Vol 69 (11) ◽

Cited By ~ 4

Author(s):

Csilla Farkas ◽

Györgyi Gelybó ◽

Zsófia Bakacsi ◽

Ágota Horel ◽

Andrea Hagyó ◽

...

Keyword(s):

Climate Change ◽

Land Use ◽

Soil Water ◽

Water Regime ◽

Climate Models ◽

Climate Model ◽

Arable Land ◽

Soil Layer ◽

Long Term Effects ◽

Soil Water Regime

AbstractA mathematical model was applied for the Bükk Mountains (Hungary) to evaluate the effects of climate change on soil water balance elements and soil water regime. Model runs using SWAP model were performed for combinations of four distinctive soil types and three land use systems of arable land, grassland, and forest. The temporal variation of soil water regime under changing climatic conditions was examined considering no land cover change occurring in the future. The climate data consisted of the predictions of two regional climate models, the Swiss CLM and the Swedish RCA. The RCA results showed 45% to 50% and the CLM showed 5% to 14% higher future precipitation outlook compared to present conditions. Considering different land use types, the projected number of days with soil moisture deficit was the highest in forest ecosystems for both the upper 50 cm soil layer and the whole soil profile, which could be as high as 61% of days below optimal soil water content range. Our results showed increased water fluxes, especially in deep percolation in far future period and a strong influence of soil properties on the changes in the climate model results, indicating significant long-term effects of climate change on soil water regime.

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