[1]ZHE Meng,ZHANG Xueqin,SHEN Pengke,et al.Spatial-temporal Pattern of Temperature Variation in Beijing-Tianjin-Hebei Region Over the Period 1957-2017[J].Research of Soil and Water Conservation,2020,27(05):194-201.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 05
Page number:
194-201
Column:
目次
Public date:
2020-08-20
- Title:
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Spatial-temporal Pattern of Temperature Variation in Beijing-Tianjin-Hebei Region Over the Period 1957-2017
- Author(s):
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ZHE Meng1, ZHANG Xueqin2, SHEN Pengke3, HOU Wenjuan2
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(1.Faculty of Education, Tianjin Normal University, Tianjin 300387, China; 2.Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China; 3.Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China)
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- Keywords:
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temperature; mutation test; wavelet analysis; Hurst index; Beijing-Tianjin-Hebei Region
- CLC:
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P467
- DOI:
-
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- Abstract:
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The Beijing-Tianjin-Hebei Region is the political, economic and cultural center of China. Temperature is the key meteorological element that affects the sustainable development of ecological environment and social economy in this region. Based on the monthly temperature data from 52 meteorological stations in and around Beijing-Tianjin-Hebei Region from 1957 to 2017, the spatial-temporal variability of temperature in this region was analyzed by utilizing ANUSPLIN spatial interpolation, linear regression, Mann-Kendall test, moving T-test, Morlet wavelet, and R/S method. The results revealed that temperature in Beijing-Tianjin-Hebei Region had increased significantly in recent 61 years, showing distinct inter-decadal circles. The warming rate of annual minimum temperature(0.43℃/decade)was 1.3 times and 1.7 times of the level of annual average temperature and maximum temperature, respectively. The mutation of annual minimum temperature was firstly detected in 1975, which was 14 and 22 years earlier than that of annual average temperature and maximum temperature, respectively. Seasonal temperatures showed evident upward trends, and the average temperature rise in winter contributed the most to the annual temperature rise. Temperatures overall declined gradually from southeast to northwest in terms of the spatial distribution. Warming trends were observed in most areas, with high rates in the eastern and western regions, and low rates in the southern and northern regions. The Hurst indexes of annual and seasonal temperatures were all greater than 0.5, and those of minimum temperature and winter temperature were close to 1. It is therefore reasonable to infer that a persistently rising trend of temperature will prevail in the future, and the increase of low temperature will continue to be the main contributor to climate warming in this region.