Anhui Agricultural Science Bulletin >
2025 , Vol. 31 >Issue 8: 110 - 113
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2025.08.026
Research and application of the daily maximum temperature forecast model during the orchard in the second expansion period of Dangshan crisp pear fruit
Received date: 2024-10-14
Online published: 2025-04-28
Based on the daily maximum temperature data of A, B, C, D and E orchards and the daily maximum temperature data of Dangshan National Basic Meteorological Observatory from July to September, 2017 to 2023, the daily maximum temperature meteorological forecast models of crisp pear fruit in A, B, C, D and E 5 orchards were established by linear regression equation. The results showed that the maximum temperature prediction models of these 5 orchards were y =1.008 9x + 0.422 9,y = 0.998 3x + 0.649 1,y = 1.013 4x + 0.164 6,y =1.092 7x - 1.761 2,y = 1.000 4x + 0.363 4. R2 of model test was greater than 0.9, which indicated that the model had a good forecasting effect. The average absolute errors of the 5 township models were 0.5, 0.5, 0.6, 0.8 and 0.5 ℃ respectively. Both of them were less than 1 ℃, and the average absolute error was smaller and the prediction was more accurate than that of using the daily maximum temperature of Dangshan National Basic Meteorological Observatory as the orchard daily maximum temperature. The average absolute errors between the predicted results and the actual situation were 0.5, 0.6, 0.9, 0.9 and 0.5 ℃ respectively, all of which were less than 1 ℃, so the prediction was accurate. The forecasting model of orchard maximum temperature was convenient to use and had good forecasting effect, which can be applied to practical meteorological forecast business.
Key words: crisp pear; orchard; maximum temperature; meteorological forecast model
ZHANG Xinran , JIN Lei , SONG Zhenyan , CHEN Luyao . Research and application of the daily maximum temperature forecast model during the orchard in the second expansion period of Dangshan crisp pear fruit[J]. Anhui Agricultural Science Bulletin, 2025 , 31(8) : 110 -113 . DOI: 10.16377/j.cnki.issn1007-7731.2025.08.026
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