Evaluation of high temperature effects on maize in Xinjiang province using the DSSAT-CERES-Maize model
文献类型: 外文期刊
作者: Fangliang Zhang;Erjing Guo;Zhijuan Liu;Litao Zhou;William D. Batchelor;Shaokun Li;Xiaoguang Yang
作者机构:
关键词: DSSAT-CERES-Maize model;Heat stress;Maize yield;Reproductive period
期刊名称: European Journal of Agronomy
ISSN: 1161-0301
年卷期: 2025 年 172 卷
页码:
收录情况: SCIE(2025版)
摘要: Maize yield is negatively affected by heat stress during the reproductive period. With the rise of temperature, heat stress increases significantly. In this work, a crop model was used to simulate the effects of heat stress on maize yield. We evaluated the DSSAT-CERES-Maize model in Xinjiang, based on weather, soil, crop, and field management data. Combining heat stress index and crop data under heat stress years, the simulation ability of DSSAT-CERES-Maize model on heat stress was evaluated by replacing meteorological data during heat stress times. We quantified the effects of heat stress during silking-milk and milk-maturity periods on maize yield using the crop model. The results indicated the DSSAT-CERES-Maize model effectively simulated the phenology and yield of maize cultivars at the study sites. During daily maximum temperature exceeded 35 ℃ and lasted for 3 days, average simulation error of yield and yield losses of DSSAT-CERES-Maize model at study sites were below 8 % and 5 %, respectively. The average frequency of maize heat stress during silking-milk and milk-maturity periods from 1981 to 2020 were 35 % and 50 %, respectively. The maize yield decreased by 0.6 % (0.3 %) for every 1 ℃·d increase in the heating degree days during silking-milk (milk-maturity) period.
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