全球气候变化下秦岭南北气温变化特征
作者简介:李双双(1988-),男,陕西潼关人,硕士研究生,主要研究全球变化与区域灾害防治。E-mail:40609010@stu.snnu.edu.cn
收稿日期: 2011-09-15
要求修回日期: 2011-10-22
网络出版日期: 2012-07-20
基金资助
国家自然科学基金项目(40871052)、国家自然科学基金项目(41171090)资助
The Characteristics of Temperature Change in Qinling Mountains
Received date: 2011-09-15
Request revised date: 2011-10-22
Online published: 2012-07-20
Copyright
李双双 , 延军平 , 万佳 . 全球气候变化下秦岭南北气温变化特征[J]. 地理科学, 2012 , 32(7) : 853 -858 . DOI: 10.13249/j.cnki.sgs.2012.07.853
Qinling range has been recognized as the geo-ecological boundary between subtropical and warm-temperate zones in the eastern China, which is the advantage of regional area to study global change. This article, based on the meteorological data of the 61 meteorological stations in the northern and southern regions of the Qinling Mountains (1961-2009), selecting the contour 1 000 m in southern piedmont as the ecological boundary line, analyzed the fundamental characteristics, spatio-temporal distribution and reasons of temperature change using methods of linear regression, Mann-Kendall mutation test, analysis of wavelets, Kriging interpolation and other Climate diagnosis method. The results show that the average temperature, extreme high and low temperature in the south and north Qinling Mountains were in increase trend, but there was a certain difference in the sharp change time and range. The tilt rate of annual average temperature in the south of Qinling Mountains is the lowest (0.121℃/10 a),then is in the north of Qinling Mountains (0.203℃/10 a),and they all lower than the other regions of China (0.26±0.032℃/10 a). The temperature mutation of the north of Qinling Mountains (1995) occurred earlier than that of the sorth (1998), which was later than the other regions of China (1993). Based the climate characteristics, it was found that the influence of climate change mainly reflects nature and human activities.
Fig.1 The decadal shifting of the northern boundaries for the northern subtropical belt图1 近50 a北亚热带变迁(据文献[2]改绘) |
Fig.2 Sketch map of the southern and northern regions of the Qinling Mountains图2 秦岭南北研究区域 (据文献[3]改绘) |
Fig.3 Variations of annual mean temperature in Qinling Mountains from 1961 to 2009图3 秦岭地区1961~2009年年均温变化曲线 |
Fig.6 M-K test of annual mean temperature in Qinling Mountains图6 秦岭地区气温突变Mann-Kendall检验 |
Fig.4 The change of maximum temperature in Qinling Mountains from 1961 to 2009图4 关中、陕南地区1961~2009年最高温变化曲线 |
Fig.5 The change of minimum temperature in Qinling Mountains from 1961 to 2009图5 秦岭地区1961~2009年最低温变化曲线 |
Fig.7 The wavelet analysis of annual mean temperature in Qinling Mountains图7 秦岭南北气温小波分析 |
Fig.8 The spatial distribution of temperature before and after the abrupt change and after 2000 in Qinling Mountains图8 秦岭南北年均温突变前后及2000年后逐年空间分布 |
The authors have declared that no competing interests exist.
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