文献类型： 会议论文
第一作者： Haikuan Feng
作者： Haikuan Feng 1 ; Zhenhai Li 1 ; Peng He 1 ; Xiuliang Jin 1 ; Guijun Yang 1 ; Haiyang Yu 1 ; Fuqin Yang 1 ;
作者机构： 1.Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
关键词： Phenology;DSSAT-CERES;Phenology coefficients;Winter wheat
会议名称： International Conference on Computer and Computing Technologies in Agriculture
主办单位：
页码： 259-268
摘要： The Decision Support for Agrotechnology Transfer (DSSAT) model was a worldwide crop model, and crop accurate simulation of phenology was the premise to realize other functional simulations. The objective of this study was to attempt to calibrate the parameters of wheat phenology coefficients, including cultivar and ecotype coefficients, and develop the winter wheat phenology coefficients of Beijing area. To achieve this goal, field surveys of 7 years in wheat growing seasons in Beijing were carried out during 2005–2012. The trail-and-error method and GLUE method were used to calibrate the phenology parameters with 4 growing seasons of 05/06, 06/07, 07/08 and 08/09. Three growing seasons, 09/10, 10/11, and 11/12 were used for validation, and the results showed good agreements between observed date and predicted date. The RMSE of validation data for TS, BT, HD, AN, and MA were 1.63 d, 2.45 d, 3.16 d, 1.83 d, 3.56 d, respectively. Therefore, the calibrated parameters could be used to monitor winter wheat phenology, and could be used for other research as the basis phenology parameters of Beijing area.
分类号： S126-532
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