Suitable Sowing Date Method of Winter Wheat at the County Level Based on ECMWF Long-Term Reanalysis Data by LIU Ruixuan, ZHANG Fangzhao, ZHANG Jibo, LI Zhenhai, YANG Juntao

“…[Results and Discussions]The results showed that, from November 1997 to early December 2022, winter and annual average temperatures in Qihe county had all shown an upward trend, and there was indeed a clear trend of climate warming in various townships of Qihe county. Judging from the daily average temperature over the years, the temperature fluctuation range in November was the largest in a year, with a maximum standard deviation was 2.61 ℃. …”
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