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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (1): 133-141.doi: 10.11924/j.issn.1000-6850.casb2022-0739

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Constructing the Monitoring Model of High Temperature Damage on Rice by Combining Data from Satellites and Ground Automatic Weather Stations

Pema Rigzin1,2(), Dhonyo Dorji1,3, Delek Kunkyi4, Dekyi Yangzom1,2(), Yeshe Dorji3, Penpa Tsring1   

  1. 1. Tibet Climate Center, Lhasa 850000
    2. Institute of Plateau Meteorology, CMA, Lhasa 850000
    3. Tibet Meteorological Bureau, Lhasa 850000
    4. Muozhugongka County Meteorological Bureau, Lhasa 850000
  • Received:2022-08-25 Revised:2022-10-29 Online:2023-01-05 Published:2022-12-27
  • Contact: Dekyi Yangzom E-mail:466797027@qq.com;1308709602@qq.com

Abstract:

With global warming and frequent occurrence of high temperature events, the probability of rice suffering from high temperature damage and serious losses also increases. This paper studies the monitoring model of rice high temperature damage based on the combination of data from automatic weather stations and satellites. The model used remote sensing to extract rice-planting areas, invert rice heading and flowering stages, and estimate the maximum and average temperature. At the same time, the data of automatic weather stations combined with remote sensing estimation of temperature were used to reconstruct more accurate, more complete and more objective data of the maximum and average temperature. Finally, according to the rice high temperature damage indexes, the rice high temperature damage was estimated and the model was constructed. This model can realize the qualitative, quantitative and degree monitoring of high temperature damage at the heading and flowering stages of rice. The model achieved good results in monitoring and verifying the high temperature damage in Anhui Province in 2017.

Key words: rice, high temperature damage, model, remote sensing, automatic weather station

CLC Number: