| 关中平原清代霜雪灾害特点与周期研究 |
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| 引用本文： | 赵景波,陈颖,周旗.关中平原清代霜雪灾害特点与周期研究[J].地球科学与环境学报,2012(3):75-82. |
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| 作者姓名： | 赵景波 陈颖 周旗 |
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| 作者单位： | 1. 陕西师范大学 旅游与环境学院,陕西 西安 710062
2. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,陕西 西安 710075 |
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| 基金项目： | 国家自然科学基金项目(40571004);中国科学院黄土与第四纪地质国家重点实验室项目(SKLLQG0606) |
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| 摘 要： | 通过对关中平原清代历史文献资料的搜集、整理和小波分析,对该区清代霜雪灾害等级、周期及其成因进行了研究,并恢复了该区清代霜雪灾害发生时的最低气温.结果表明:关中平原清代共发生霜雪灾害34次,其中轻度、中度、重度霜雪灾害分别为2、20、12次;关中平原清代霜雪灾害可分为3个阶段,1644~1733年为第1阶段,1734~1823年为第2阶段,1824~1912年为第3阶段;第1和第3阶段为霜雪灾害多发阶段,以中度和重度灾害为主,第2阶段为霜雪灾害少发阶段,以轻度和中度灾害为主;小波分析表明,关中平原清代霜雪灾害的发生存在不同的时间周期规律,其周期主要有9~15年、13年、34年左右和40年左右;降雪或寒流引起的气温骤降至0℃以下是造成关中平原清代霜雪灾害的主要原因;关中平原清代轻度和中度霜雪灾害的气温范围为-6.4℃~-1℃,重度的气温范围一般为-19℃~-17℃;关中平原清代共发生3次寒冷气候事件,分别为1690~1692年、1861~1865年和1893~1895年.
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| 关 键 词： | 霜雪灾害 清代 关中平原 灾害等级 周期规律 小波分析 寒冷气候事件 |
Study on the Characteristic and Period of Frost and Snow Disaster in Guanzhong Plain During Qing Dynasty |
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| ZHAO Jing-bo,CHEN Ying,ZHOU Qi.Study on the Characteristic and Period of Frost and Snow Disaster in Guanzhong Plain During Qing Dynasty[J].Journal of Earth Sciences and Environment,2012(3):75-82. |
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| Authors: | ZHAO Jing-bo CHEN Ying ZHOU Qi |
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| Institution: | 1(1.School of Tourism and Environment,Shaanxi Normal University,Xi’an 710062,Shaanxi,China; 2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710075,Shaanxi,China) |
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| Abstract: | According to the historical materials and wavelet analysis,the grade,period and cause of frost and snow disaster in Guanzhong Plain during Qing Dynasty were discussed,and the lowest temperature was recovered when frost and snow disaster happened.The results showed that there were 34 frost and snow disasters,and the frequencies of mild,moderate and serious frost and snow disasters were 2,20 and 12,respectively;the change of frost and snow disaster could be divided into three stages,and the first stage was from 1644 to 1733,the second stage was from 1734 to 1823,and the third stage was from 1824 to 1912;frost and snow disaster happened frequently in the first and third stages,and most were moderate and serious;frost and snow disaster happened occasionally in the second stage,and most were mild and moderate;according to the wavelet analysis,there were different periods when frost and snow disaster happened,and the periods were mainly 9-15 years,13 years,about 34 years and about 40 years;the main reason causing the frost and snow disaster was that the temperature suddenly decreased below 0 ℃;the temperature was-6.4 ℃——1 ℃ for mild and moderate frost and snow disasters,and-19 ℃——17 ℃ for serious;there were three cold climate events including 1690-1692,1861-1865 and 1893-1895. |
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| Keywords: | frost and snow disaster Qing Dynasty Guanzhong Plain disaster grade periodic law wavelet analysis cold climate event |
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