[1]ZHAO Yan,YUE Dapeng,ZHAO Jingbo,et al.Flood Disasters in the Central and Southern Loess Plateau of Shaanxi in Ming Dynasty[J].Research of Soil and Water Conservation,2021,28(05):187-195.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 05
Page number:
187-195
Column:
Public date:
2021-08-20
- Title:
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Flood Disasters in the Central and Southern Loess Plateau of Shaanxi in Ming Dynasty
- Author(s):
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ZHAO Yan1,2,YUE Dapeng1,ZHAO Jingbo1,2,LIU Le1
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(1.School of Geography and Tourism,Shaanxi Normal University,Xi'an 710119,China; 2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,China)
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- Keywords:
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flood disaster; occurrence cycle; wavelet analysis; Ming Dynasty; Loess Plateau
- CLC:
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P426.616
- DOI:
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- Abstract:
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In order to explore the regularity of floods in the Loess Plateau of Shaanxi Province,and to provide help for the climate recovery and disaster prediction and prevention in the historical period of the region,this paper collected and sorted out the historical documents of floods,and used mathematical statistics,wavelet analysis and other methods to studied the flood disaster grade,frequency,cycle and causes in the central and southern part of Shaanxi Loess Plateau in the Ming Dynasty. Through the collection of relevant historical documents of flood disasters,mathematical statistics,wavelet analysis and other methods were used to study the flood disasters grade,frequency,cycle and cause of the Ming Dynasty in the central and southern Loess Plateau in Shaanxi. The results showed that:(1)the central and southern part of the Loess Plateau in Shaanxi experienced 73 floods in 277 years during the Ming Dynasty,with an average occurrence frequency of 3.78 years; mild floods,middle floods,great floods and serious floods accounted for 19.18%,61.64%,16.44%,and 2.74% of the total occurrences,respectively,and mild floods and middle floods were dominant;(2)it could be divided into six stages:1368—1427,1428—1487,1488—1517,1518—1567,1568—1587 and 1588—1644; the first,third and fifth stages were the periods with less floods,and the second,fourth and sixth stages were the periods with frequent floods; the frequency and level of flood disasters in the middle and late Ming Dynasty were significantly higher than those in the early period;(3)the distribution of flood disasters was mostly concentrated in summer and autumn;(4)in the Ming Dynasty,the flood disasters in the central and southern part of the Loess Plateau in Shaanxi had occurrence cycles of 4-year,6-year,20-year,and 58-year;(5)the occurrence of flood disasters in the central and southern Loess Plateau in the Ming Dynasty was the result of both natural and human factors; the warm and humid climate and the enhancement of summer monsoon activity were the main factors on flood disasters in Ming Dynasty in the study area,and the flood disasters were mainly the response to climate warming and humidity. The factors such as imperfect urban facilities and excessive reclamation also had some influence on the flood disasters. To sum up,the change stage of flood disasters in this area is obvious,which is mainly controlled by the fluctuation of natural factors. In order to strengthen the prevention and control of flood disasters in this area,relevant monitoring and management are urgently needed.