北方农业学报 ›› 2016, Vol. 44 ›› Issue (1): 120-120.

• 综述 • 上一篇    下一篇

清代--民国时期介休地区旱灾研究

侯雨乐   

  1. 阿坝师范学院,四川汶川623002
  • 出版日期:2016-02-20 发布日期:2016-02-20
  • 通讯作者: 侯雨乐
  • 作者简介:侯雨乐(1983-),男,讲师,硕士,主要从事自然地理研究。
  • 基金资助:
    阿坝师范学院校级科研项目资助(ASB15-13)

Characteristics of drought disasters in Jiexiu region during the Qing dynasty and the Republic of China

HOU Yule (Aba Normal College,Wenchuan 623002,China)   

  • Online:2016-02-20 Published:2016-02-20

摘要: 根据历史文献资料的整理分析,利用数理统计分析方法,对介休地区清代-民国时期旱灾的等级、年代序列变化、季节变化及成因进行了研究讨论。结果表明:介休地区清代-民国期间共记载72次旱灾,平均每4.3a发生1次。其中l级(轻度)旱灾29次,占旱灾总数的40.3%;2级(中度)旱灾14次,占19.4%;3级(大旱)旱灾13次,占18.1%;4级(特大早)旱灾16次,占22.2%。大旱灾及特大旱灾就占到了40.3%,而中度咀上旱灾比重达59.7%,超出旱灾总数的1/2,受灾严重。清代-民国旱灾呈现由多变少又变多的趋势,具有显著波动特征,清末-民国间旱灾频次明显高于中早期,是旱灾高发期且旱情严重。旱灾的主要诱因是降水量比正常年偏少,入地矛盾失调加剧了旱灾的频次与严重程度。

Abstract: Based on collection and arrangement of historical material,using the mathematical statistics analysis method ,hierarchical sequence features,decadal change,seasonal change,periodic variation and reason of drought disaster were analyzed for the Jiexiu Region during the Qing dynasty and the Republic of China.The results showed that there were 72 times drought disasters in total,approximately once every 4.3 years on average.Level 1 drought occured 29 times, accounting for 40.3% of the total number of drought.Above moderate drought proportion was 59.7% ,which was beyond the drought half of the total. This had significant characteristics between the late Qing dynasty to the republic of China.The drought frequency was significantly higher in early and it was a severe drought season and drought. The main cause of the drought was less rainfall than normal years. The imbalance of contradiction between human and land intensified drought frequency and severity.

中图分类号: 

  • S423