| 延安地区明代、清代干旱灾害与气候变化对比研究 |
| |
| 引用本文： | 赵景波,陈颖,周旗.延安地区明代、清代干旱灾害与气候变化对比研究[J].自然灾害学报,2011(5). |
| |
| 作者姓名： | 赵景波 陈颖 周旗 |
| |
| 作者单位： | 宝鸡文理学院灾害监测与机理模拟陕西省重点实验;陕西师范大学旅游与环境学院; |
| |
| 基金项目： | 陕西省灾害监测与模拟重点实验室项目(09JS074); 教育部人文社会科学研究基地重大招标项目(05JJD770014) |
| |
| 摘 要： | 根据延安地区历史时期旱灾资料,研究了该地区明清旱灾差异和气候的不同。结果表明,延安地区明代(1368-1643年)276年内,共发生旱灾115次,平均每2.4年发生1次;其中轻度旱灾17次,中度旱灾52次,大旱灾34次,特大旱灾12次。清代(1644-1912年)的269年里,共发生旱灾35次,平均7.7年发生1次;其中轻度旱灾6次,中度旱灾25次,大旱灾3次,特大旱灾1次。延安地区明清旱灾差异显著,明代旱灾频次是清代的3.2倍;明代旱灾等级比清代高,前者大旱灾与特大旱灾占旱灾总数的40%,后者的仅占11.6%。明代干旱气候事件频繁,清代干旱气候事件少见。延安地区明代旱灾发生频繁和等级高的原因是当时气候变干和干旱气候事件频繁出现引起的,说明明代是气候较为干旱的时期。延安地区清代旱灾频次低和等级低是当时降水量较多的结果,说明清代是较湿润的时期。明代和清代大旱灾发生时的年均降水量为440mm左右,特大旱灾发生时的年均降水量为360mm左右。
|
| 关 键 词： | 延安地区 旱灾差异 明代 清代 灾害等级 干旱气候事件 |
Comparative study of draught disasters and climate change between Ming and Qing Dynasty in Yan'an area |
| |
| ZHAO Jing-bo,CHEN Ying,ZHOU Qi.Comparative study of draught disasters and climate change between Ming and Qing Dynasty in Yan'an area[J].Journal of Natural Disasters,2011(5). |
| |
| Authors: | ZHAO Jing-bo CHEN Ying ZHOU Qi |
| |
| Affiliation: | ZHAO Jing-bo1,2,CHEN Ying2,ZHOU Qi1 (1.Key Lab.of Disaster Monitoring and Mechanism Simulating of Shaanxi Province,Baoji University of Arts and Sciences,Baoji 721013,China,2.College of Tourism and Environment Science,Shaanxi Normal University,Xi'an 710062,China) |
| |
| Abstract: | According to historical documents of draught disaster in Yan'an,the authors studied the draught and the climate difference between Ming and Qing Dynasty in Yan'an.As the results showed,there were 115 drought disasters in Yan'an in Ming Dynasty,and the disasters occurred once every2.4 years.In this period,the numbers of the slight,moderate,serious and extremely serious drought disasters respectively were 17,52,34,12.There were 35 drought disasters in Yan'an in Qing Dynasty,and the disasters occurred once eve... |
| |
| Keywords: | Yan'an area draught disasters difference Ming Dynasty Qing Dynasty disaster grade draught climate event |
| 本文献已被 CNKI 等数据库收录！ |
|
