HUBEI AGRICULTURAL SCIENCES ›› 2022, Vol. 61 ›› Issue (5): 160-164.doi: 10.14088/j.cnki.issn0439-8114.2022.05.028

• Agrometeorology • Previous Articles     Next Articles

The applicability research of WOFOST model in Dezhou city

WANG Meng-meng1, YANG Xue-bin1, WANG Ji-shun2, LAI Jian-bin2   

  1. 1. Dezhou Meteorological Bureau, Dezhou 253078,Shandong, China;
    2. Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Science and Natural Resources, Chinese Academy of Science, Beijing 100101, China
  • Received:2020-10-26 Online:2022-03-10 Published:2022-04-01

Abstract: WOFOST model is developed by the Center for World Food Studies (CWFS) and Wageningen University. This research was aimed at evaluating the suitability of WOFOST model for Dezhou city. The model was calibrated to get localization parameters using the observation data in the year 2015, including biomass of winter wheat and daily light, temperature, and precipitation. And then it was validated by data in 2016. The suitability of WOFOST model for yield simulation was verified, using the yield observation data and daily weather data from 1981 to 2017. The results were as follows. The model had good simulation effect on winter wheat biomass, yield and growth period. The RMSE of the simulated and observed stalk biomass, total biomass above ground, yield were 29.3, 92.1, 86.7 g/m2, and the NRMSE were 13%, 15%, 14%, respectively. The simulation error of the growth period was no more than 4 d. It proves that corrected WOFOST model can accurately simulate the growth and yield of winter wheat in Dezhou.

Key words: WOFOST model, tuning parameters, simulation verification, winter wheat, Dezhou city

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