HUBEI AGRICULTURAL SCIENCES ›› 2020, Vol. 59 ›› Issue (8): 30-34.doi: 10.14088/j.cnki.issn0439-8114.2020.08.006

• Resource & Environment • Previous Articles     Next Articles

Regional response of climate heat resources in typical oasis eco-region

WANG Yun-peng1,2, LI Hong-ying1, YU Ya-nan1, LEI Shu-qin3, GUO Liang-cai1,2, HU Xin-hua1   

  1. 1. Jiuquan Meteorological Bureau of Gansu,Jiuquan 735000,Gansu,China;
    2. Key Open Laboratory of Cloud and Fog Physical Environment,China Meteorological Administration,Beijing 100081,China;
    3. Yumen Meteorological Bureau of Gansu,Yumen 735211,Gansu,China
  • Received:2019-08-23 Online:2020-04-25 Published:2020-07-03

Abstract: Jiuquan oasis in the west of Hexi Corridor is selected as the representative. Based on the daily temperature data of 8 meteorological stations in Jiuquan city from 1961 to 2018, the temporal and spatial variation characteristics of accumulated temperature greater than or equal to 10 ℃ in typical oasis eco-region in recent 60 years was analyzed by using 5-day moving average, climate tendency rate, M-K mutation test method and wavelet analysis. The results are as follows: The accumulated temperature greater than or equal to 10 ℃ is unevenly distributed, and the regional distribution is quite different. The accumulated temperature greater than or equal to 10 ℃ shows an increasing trend in which the first day is ahead of schedule and the final day is delayed. In recent 60 years, the accumulated temperature greater than or equal to 10 ℃, the final day and the duration days was changed abruptly in 2004, 1974 and 1997, respectively. The accumulated temperature greater than or equal to 10 ℃ has a strong oscillation period of quasi-26 years, since 1961—1970, 1971—1999 and 21st century, the change process of rise-fall-rise has been generally presented; The short-period oscillation of the first day, the final day and duration days of the accumulated temperature greater than or equal to 10 ℃ are obviously different at each time interval.

Key words: typical oasis eco-region, accumulated temperature, climate evolution, wavelet analysis, regional response

CLC Number: