Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat?
This study evaluates drought stress effect on winter wheat. Simultaneously, the ability of the HERMES crop growth model to reproduce the process correctly was tested. The field experiment was conducted at Domanínek station in 2014 and 2015, where mobile rain-out shelters were installed on plots of w...
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Online Access: | https://acta.mendelu.cz/66/1/0225/ |
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doaj-40bb9967517f4a07bea2fd014b29dfbc2020-11-24T22:22:33ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102018-01-0166122523310.11118/actaun201866010225Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat?Markéta Wimmerová0Petr Hlavinka1Eva Pohanková2Kurt Christian Kersebaum3Miroslav Trnka4Karel Klem5Zdeněk Žalud6Global Change Research Institute CAS, v.v.i., Bělidla 986 / 4a, 603 00 Brno, Czech Republic; Institute of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicGlobal Change Research Institute CAS, v.v.i., Bělidla 986 / 4a, 603 00 Brno, Czech Republic; Institute of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicGlobal Change Research Institute CAS, v.v.i., Bělidla 986 / 4a, 603 00 Brno, Czech Republic; Institute of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicInstitute of Landscape Systems Analysis, Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Straße 84, 15374 Müncheberg, GermanyGlobal Change Research Institute CAS, v.v.i., Bělidla 986 / 4a, 603 00 Brno, Czech Republic; Institute of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicGlobal Change Research Institute CAS, v.v.i., Bělidla 986 / 4a, 603 00 Brno, Czech Republic; Institute of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicGlobal Change Research Institute CAS, v.v.i., Bělidla 986 / 4a, 603 00 Brno, Czech Republic; Institute of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicThis study evaluates drought stress effect on winter wheat. Simultaneously, the ability of the HERMES crop growth model to reproduce the process correctly was tested. The field experiment was conducted at Domanínek station in 2014 and 2015, where mobile rain-out shelters were installed on plots of winter wheat (May 2015). Precipitation was reduced in three replications and the findings were compared with results from control plots with ambient precipitation. A precipitation reduction of 93 mm led to reduced growth and decrease in grain yields. The results of this study showed that the model was able to reproduce soil moisture content well and reproduce the drought stress for crop yields of winter wheat to a certain extent. When rain-out shelters were used, real winter wheat yields were reduced by 1.7 t/ha. The model underestimated the yields for the sheltered variant by 0.67 t/ha on average against observed yields and overestimated development of leaf area for both unsheltered and sheltered variants. This overestimation was partly explained by the effect of excluded UV radiation. The outcome of this paper may help to reduce uncertainty within simulated yields of winter wheat under extreme weather conditions through a better understanding of model behavior.https://acta.mendelu.cz/66/1/0225/leaf area indexrain-out shelterssoil water contentwater balanceyields |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Markéta Wimmerová Petr Hlavinka Eva Pohanková Kurt Christian Kersebaum Miroslav Trnka Karel Klem Zdeněk Žalud |
spellingShingle |
Markéta Wimmerová Petr Hlavinka Eva Pohanková Kurt Christian Kersebaum Miroslav Trnka Karel Klem Zdeněk Žalud Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat? Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis leaf area index rain-out shelters soil water content water balance yields |
author_facet |
Markéta Wimmerová Petr Hlavinka Eva Pohanková Kurt Christian Kersebaum Miroslav Trnka Karel Klem Zdeněk Žalud |
author_sort |
Markéta Wimmerová |
title |
Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat? |
title_short |
Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat? |
title_full |
Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat? |
title_fullStr |
Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat? |
title_full_unstemmed |
Is Crop Growth model Able to Reproduce Drought Stress Caused by Rain-Out Shelters Above Winter Wheat? |
title_sort |
is crop growth model able to reproduce drought stress caused by rain-out shelters above winter wheat? |
publisher |
Mendel University Press |
series |
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
issn |
1211-8516 2464-8310 |
publishDate |
2018-01-01 |
description |
This study evaluates drought stress effect on winter wheat. Simultaneously, the ability of the HERMES crop growth model to reproduce the process correctly was tested. The field experiment was conducted at Domanínek station in 2014 and 2015, where mobile rain-out shelters were installed on plots of winter wheat (May 2015). Precipitation was reduced in three replications and the findings were compared with results from control plots with ambient precipitation. A precipitation reduction of 93 mm led to reduced growth and decrease in grain yields. The results of this study showed that the model was able to reproduce soil moisture content well and reproduce the drought stress for crop yields of winter wheat to a certain extent. When rain-out shelters were used, real winter wheat yields were reduced by 1.7 t/ha. The model underestimated the yields for the sheltered variant by 0.67 t/ha on average against observed yields and overestimated development of leaf area for both unsheltered and sheltered variants. This overestimation was partly explained by the effect of excluded UV radiation. The outcome of this paper may help to reduce uncertainty within simulated yields of winter wheat under extreme weather conditions through a better understanding of model behavior. |
topic |
leaf area index rain-out shelters soil water content water balance yields |
url |
https://acta.mendelu.cz/66/1/0225/ |
work_keys_str_mv |
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