[1]ZHANG Tienan,XU Weizheng,WEI Shi,et al.Simulation and Verification of Spring Wheat Water Balance in Northeast Region Based on WOFOST Model[J].Research of Soil and Water Conservation,2015,22(04):45-51.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 04
Page number:
45-51
Column:
Public date:
2015-08-28
- Title:
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Simulation and Verification of Spring Wheat Water Balance in Northeast Region Based on WOFOST Model
- Author(s):
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ZHANG Tienan1,2, XU Weizheng3, WEI Shi1, GU Wanrong1, HE Dan1, LU Yushuang3, QIAN Cheng4, CHEN Qi4, LI Jing1
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1. College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
2. Commission of Agriculture of Daqing City, Daqing, Heilongjiang 163000, China;
3. Heilongjiang Province Station for Popularizing Agricultural Techniques, Harbin 150030, China;
4. Branch of Suihua Academy of Agricultural Sciences of Heilongjiang Province, Suihua, Heilongjiang 152000, China
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- Keywords:
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WOFOST model; northeast area; spring wheat; parameter adjustment; soil moisture content; simulation and verification
- CLC:
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S512.1+2
- DOI:
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- Abstract:
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This research has carried on the localization parameter calibration in WOFOST model, and carried the sensitivity analysis of the input relevant parameters. Then several parameters were picked out which had significant influence on result and made different adjustment scheme. A corresponding model was setted up to run database to simulate spring wheat growth and soil moisture content conditions in Harbin, Suihua, Nenjiang, Huma and Yakeshi area in 2012, 2013. Then the measured values were compared with the simulation values. Finally, the WOFOST model’s adaptability and accuracy of spring wheat in the process of water balance growth in northeast area was evaluated. The results showed that for 2012 and 2013, absolute error of between the soil moisture content simulated by WOFOST model and the measured values ranged from 2.43% to 8.75% on average, RMSE was between 6.75% to 13.75%, EF was between -0.844 to 0.245, CRM was between -0.272 to 0.084, IoA was between 0.457 to 0.789 that was in the confidence interval. On the whole, the model simulation of soil water content had a certain reference value. The calibrated model was used to simulate the spring wheat soil evaporation and crop transpiration and crop water requirement in 2012, 2013. It can be achieved the purpose of using the fewer parameters for soil evaporation and crop transpiration separation.