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Chinese Agricultural Science Bulletin ›› 2026, Vol. 42 ›› Issue (2): 153-162.doi: 10.11924/j.issn.1000-6850.casb2025-0177

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Variation Analysis and Trend Prospect of Agricultural Climate Resources for Grape in Raoyang County

MA Mingjun(), SHI Meiliang, CHANG Shudong()   

  1. Raoyang National Climate Observatory, Raoyang, Hebei 053900
  • Received:2025-10-17 Revised:2025-12-23 Online:2026-01-25 Published:2026-01-22

Abstract:

This research aimed to analyze the variations of agricultural climate resources during the key growth periods of grapes in Raoyang County and the influence of future climate change on the facility grape industry of Raoyang County. Based on the daily meteorological data from 1957 to 2023 of the Raoyang National Climate Observatory, methods such as interpolation and linear trend analysis were adopted to study the changes of agricultural climate resources during the grape growth periods in Raoyang County, to judge and predict the future development trend. The results showed that the heat resources in Raoyang County were stable, the average temperature in each growth period of grape was suitable, and the duration days and effective accumulated temperature of average temperature passing through 10℃ showed a continuous upward trend. The precipitation resources were unstable, and the precipitation in grape germination stage was less. However, the precipitation in fruit production stage was more, and the future change trend was not significant. The light resources satisfied the growth demands of grapes, while the average daily sunshine duration and the percentage of sunshine presented a remarkable downward trend. The air humidity fluctuated and the changing trend was not significant, the grape coloring and maturation period’s air humidity was relatively high. The wind force in April and May was relatively strong, and the 2-minute average wind speed showed a significant downward trend overall. In summary, climate change exerts a dual impact of “beneficial guidance + stress” on the grape industry in Raoyang County by altering the structure of agricultural climatic resources. The improvement of heat conditions is conducive to the cultivation of late-maturing varieties, and the instability of precipitation resources has higher requirements for the irrigation and water control systems in the vineyards, which is recommended to enhance the meteorological monitoring capabilities in the planting area and regulate soil moisture scientifically.

Key words: climate change, agricultural climate resources, grapes, fertility period, meteorological disaster prevention