Počet záznamů: 1  

Sensitivities of crop models to extreme weather conditions during flowering period demonstrated for maize and winter wheat in Austria

  1. 1.
    SYSNO ASEP0384648
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevSensitivities of crop models to extreme weather conditions during flowering period demonstrated for maize and winter wheat in Austria
    Tvůrce(i) Eitzinger, Josef (UEK-B) RID
    Thaler, S. (AT)
    Schmid, E. (AT)
    Strauss, F. (AT)
    Ferrise, R. (IT)
    Moriondo, M. (IT)
    Bindi, M. (IT)
    Palosuo, T. (FI)
    Rötter, R. (FI)
    Kersebaum, K. C. (DE)
    Olesen, J. E. (DK)
    Patil, R. H. (DK)
    Saylan, L. (DK)
    Çaldag, B. (TR)
    Caylak, O. (TR)
    Celkový počet autorů15
    Zdroj.dok.Journal of Agricultural Science - ISSN 0021-8596
    Roč. 151, č. 6 (2013), s. 813-835
    Poč.str.23 s.
    Jazyk dok.eng - angličtina
    Země vyd.GB - Velká Británie
    Klíč. slovacrop models ; weather conditions ; winter wheat ; Austria
    Vědní obor RIVEH - Ekologie - společenstva
    CEPED1.1.00/02.0073 GA MŠk - Ministerstvo školství, mládeže a tělovýchovy
    Institucionální podporaUEK-B - RVO:67179843
    UT WOS000330450900004
    AnotaceThe objective of the present study was to compare the performance of seven different, widely applied crop models in predicting heat and drought stress effects. The study was part of a recent suite of model inter-comparisons initiated at European level and constitutes a component that has been lacking in the analysis of sources of uncertainties in crop models used to study the impacts of climate change. There was a specific focus on the sensitivity of models for winter wheat and maize to extreme weather conditions (heat and drought) during the short but critical period of 2 weeks after the start of flowering. Two locations in Austria, representing different agro-climatic zones and soil conditions, were included in the simulations over 2 years, 2003 and 2004, exhibiting contrasting weather conditions. In addition, soil management was modified at both sites by following either ploughing or minimum tillage. Since no comprehensive field experimental data sets were available, a relative comparison of simulated grain yields and soil moisture contents under defined weather scenarios with modified temperatures and precipitation was performed for a 2-week period after flowering. The results may help to reduce the uncertainty of simulated crop yields to extreme weather conditions through better understanding of the models’ behaviour. Although the crop models considered (DSSAT, EPIC, WOFOST, AQUACROP, FASSET, HERMES and CROPSYST) mostly showed similar trends in simulated grain yields for the different weather scenarios, it was obvious that heat and drought stress caused by changes in temperature and/or precipitation for a short period of 2 weeks resulted in different grain yields simulated by different models. The present study also revealed that the models responded differently to changes in soil tillage practices, which affected soil water storage capacity.
    PracovištěÚstav výzkumu globální změny
    KontaktNikola Audesová, audesova.n@czechglobe.cz, Tel.: 511 192 268
    Rok sběru2014