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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (14): 80-84.doi: 10.11924/j.issn.1000-6850.casb2022-0525

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Variation Characteristics and Zoning of Heat Resource in Xing’an League of Inner Mongolia from 1991 to 2020

ZHANG Xiaolei(), GAO Hongxia(), LIU Yang   

  1. Xing’an League Meteorological Bureau, Ulanhot, Inner Mongolia 137400
  • Received:2022-06-21 Revised:2022-08-16 Online:2023-05-09 Published:2023-05-09

Abstract:

Based on the daily average temperature data of 8 meteorological observation stations in Xing’an League of Inner Mongolia from 1991 to 2020, this paper analyzed the variation characteristics of 10℃ active accumulated temperature in Xing’an League during the 30 years. At the same time, combined with the daily average temperature data of 10 meteorological observation stations in Hulunbeier City, Tongliao City and Jilin Province, the refined calculation model of each heat element in Xing’an League was constructed. Finally, combined with the geographic information data of Xing’an League, the refined zoning map of heat resource was drawn. The results showed that the climate tendency rate of the 10℃ average active accumulated temperature in Xing’an League from 1991 to 2020 was 103.64 (℃·d)/10 a. Its change could be roughly divided into four stages. Compared with the previous generation, the average value of 10℃ active accumulated temperature at each station increased from 1991 to 2020. The area of ≥2800℃·d increased by about 5553 km2, and the area of 10℃ active accumulated temperature at other levels decreased in varying degrees, and the boundary of 10℃ active accumulated temperature of each grade moved to the northwest.

Key words: climate warming, heat resource, active accumulated temperature, zoning, Xing’an League