[1]杜华明,延军平.西秦岭地区气候变化特征与干旱灾害趋势[J].山地学报,2014,(01):58.
 DU Huaming,YAN Junping.Characteristics of Climatic Change and Trend of Aridity in West Qinling[J].Mountain Research,2014,(01):58.
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西秦岭地区气候变化特征与干旱灾害趋势()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2014年01期
页码:
58
栏目:
山地环境
出版日期:
2014-01-01

文章信息/Info

Title:
Characteristics of Climatic Change and Trend of Aridity in West Qinling
作者:
杜华明;延军平
陕西师范大学旅游与环境学院,陕西 西安 710062
Author(s):
DU Huaming YAN Junping
College of Tourism and Environmental Sciences,Shaanxi Normal University,Xi’an 710062,Shaanxi,China
关键词:
Z指数气候特征干旱小波分析西秦岭
Keywords:
Z-indexclimate characteristicsdroughtwavelet analysiswest Qinling
分类号:
P467
文献标志码:
A
摘要:
根据1961—2011年西秦岭地区12个气象站的逐月气温和降水资料,利用线性回归、反距离加权空间插值(IDW)、Z指数法和Morlet小波变换等方法,分析了近51年来西秦岭地区气候时空变化特征,区域干旱强度与旱涝灾害发展趋势。结果表明:近51年来西秦岭地区气温呈增加趋势,增温倾向率为0.26℃/(10 a),降水量呈减少趋势,减少倾向率为16.04 mm/(10 a),气候暖干化趋势明显。近51年来西秦岭地区年旱涝Z指数呈下降趋势,与降水量呈减少的趋势一致;旱涝灾害主要存在5 a和7 a的变化周期,干旱灾害极度易发,干旱化趋势明显。西秦岭地区对全球气候变化的区域响应特征是旱灾增加。
Abstract:
By using methods of linear regression,inverse distance weighted spatial interpolation,Z index and Morlet wavelet transform,the characteristics of precipitation,drought intensity and the trend of drought were analyzed based on temperature and rainfall data from 1961 to 2011 collected from 12 meteorological sites in west Qinling of China. Results showed as follows: temperature presented an increasing trend over the last 51 years in west Qinling,the temperature tendency rate was 0.26 ℃ / (10 a),precipitation presented a decreasing trend,the precipitation tendency rate was 16.04 mm/(10 a),climate warmingdrying trend was apparent.The trend of Z index showed a downward trend,the decreasing trend was consistent with the precipitation;the droughtflood had a 5 years and 7 years periodic oscillation,it was extremely prone to drought,the drought trend was obvious. The characteristics of regional response to global climate change was drought increased in west Qinling.

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备注/Memo

备注/Memo:
收稿日期(Received date):2013-04-18;改回日期(Accepted):2013-05-06。
基金项目(Foundation item):国家自然科学
基金项目(41171090)“部分重大自然灾害的时空对称性:结构、机理与适应对策”。[National Natural Science Foundation Item of China(41171090)“Spacetime symmetry of major natural disasters: structure, mechanism and adaptation strategies”.]
作者简介(Biography):杜华明(1977-),女,汉族,四川广元人,博士研究生,讲师,主要从事区域环境与可持续发展研究。[Du Huaming(1977-),female,the Han nationality,born in Guangyuan, Sichuan,doctoral candidates,lecturer,mainly engaged in the research of regional environment and sustainable development.] E-mail:dhuaming2004@163.com *
通信作者(Corresponding author):延军平(1956-),男,汉族,陕西榆林人,博士,教授,主要从事区域发展与自然灾害方面研究。[Yan Junping(1956-),male,the Han nationality,born in Yulin,Shanxi,doctor, professor, mainly engaged in regional development and natural disaster.]E-mail:yanjp@snnu.edu.cn
更新日期/Last Update: 1900-01-01