Field validation of DNDC and SWAP models for temperature and water content of loamy and sandy loam Spodosols

• Autorzy: Balashov E. , Buchkina N. , Rizhiya E. , Farkas C.
• Języki publikacji: EN

Abstrakty

EN

The objectives of the research were to: fulfil the preliminary assessment of the sensitivity of the soil, water, atmosphere, and plant and denitrification and decomposition models to variations of climate variables based on the existing soil database; validate the soil, water, atmosphere, and plant and denitrification and decomposition modelled outcomes against measured records for soil temperature and water content. The statistical analyses were conducted by the sensitivity analysis, Nash-Sutcliffe efficiency coefficients and root mean square error using measured and modelled variables during three growing seasons. Results of sensitivity analysis demonstrated that: soil temperatures predicted by the soil, water, atmosphere, and plant model showed a more reliable sensitivity to the variations of input air temperatures; soil water content predicted by the denitrification and decomposition model had a better reliability in the sensitivity to daily precipitation changes. The root mean square errors and Nash-Sutcliffe efficiency coefficients demonstrated that: the soil, water, atmosphere, and plant model had a better efficiency in predicting seasonal dynamics of soil temperatures than the denitrification and decomposition model; and among two studied models, the denitrification and decomposition model showed a better capability in predicting the seasonal dynamics of soil water content.

Słowa kluczowe

EN

field validation; agroecosystem; modelling; soil water content; soil temperature; DNDC model; SWAP model; temperature; water content; loamy sand; sandy loam; Spodosol

• Wydawca: -
• Czasopismo: International Agrophysics
• Rocznik: 2014
• Tom: 28
• Numer: 2
• Opis fizyczny: p.133-142,fig.,ref.

Twórcy

autor

Balashov E.

• Agrophysical Research Institute, Russian Academy of Agricultural Sciences, 14 Grazhdansky Prospekt, St. Petersburg, 195220, Russia

autor

Buchkina N.

• Agrophysical Research Institute, Russian Academy of Agricultural Sciences, 14 Grazhdansky Prospekt, St. Petersburg, 195220, Russia

autor

Rizhiya E.

• Agrophysical Research Institute, Russian Academy of Agricultural Sciences, 14 Grazhdansky Prospekt, St. Petersburg, 195220, Russia

autor

Farkas C.

• Institute for Soil Sciences and Agricultural Chemistry, Centre for Agricultural Research, Hungarian Academy of Sciences, Herman Otto ut.15, Budapest, H-1022, Hungary
• Bioforsk - Norwegian Institute for Agricultural and Environmental Research, Frederik A.Dahls vei 20, 1432 As, Norway