[1]CAO Guangchao,FU Jianxin,LI Lingqin,et al.Analysis on Temporal and Spatial Variation Characteristics of Air Temperature in the South Slope of Qilian Mountains and Its Nearby Regions During the Period From 1960 to 2014[J].Research of Soil and Water Conservation,2018,25(03):88-96.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 03
Page number:
88-96
Column:
Public date:
2018-04-10
- Title:
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Analysis on Temporal and Spatial Variation Characteristics of Air Temperature in the South Slope of Qilian Mountains and Its Nearby Regions During the Period From 1960 to 2014
- Author(s):
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CAO Guangchao1,2, FU Jianxin1,2, LI Lingqin1,2, CAO Shengkui1,2, TANG Zhongxia1,2, JIANG Gang1,2, YU Min1,2, YUAN Jie1,2, HAN Guangzhao1,2, DIAO Erlong
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1. Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xining 810008, China;
2. College of Geography Science Qinghai Normal University, Xining 810008, China
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- Keywords:
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temperature; change trend; spatial distribution; Qilian Mountains
- CLC:
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P467
- DOI:
-
-
- Abstract:
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Based on air temperature data observed in 19 meteorological stations in the south slope of Qilian Mountains and its nearby regions from 1960 to 2014, the methods of linear regression, correlation analysis, polynomial trend, moving mean, Hurst index and ArcGIS were used to analyze the temporal variability and spatial distribution of air temperature. The results are as follows. (1) The mean annual air temperature, the minimum and the maximum temperature exhibited unanimously fluctuating increasing trend with the rates of 0.35℃/decade, 0.27℃/decade, 0.47℃/decade, respectively. (2) The variation trend of seasonal mean temperature, the maximum and the minimum temperature showed an upward trend, and the most significant increase occurred in winter. (3) From the point of view on the inter-decadal mean temperature, the maximum and the minimum temperature variation, the trend of temperature rise in 2000-2014 was lower than that of 1990-1999, which did not mean that global warming had stagnated, was caused by external force of nature. (4) The Hurst index of air temperature was 0.5 < H < 1, which indicated that the variation trend of temperature was the same as that of the past temperature. (5) The variation trend of the mean annual air temperature and seasonal mean temperature presented the upward trend in most of the meteorological stations, the most meteorological stations passed the significance test, however, the diversity of spatial distribution of the variation trend of inter-decadal mean temperature was significantly different.