Spatial and Temporal Variation Characteristics of Drought and Flood Disasters in Guangdong Province

LIU Yonglin; YAN Junping

doi:10.13961/j.cnki.stbctb.2015.02.050

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Spatial and Temporal Variation Characteristics of Drought and Flood Disasters in Guangdong Province

- Spatial and Temporal Variation Characteristics of Drought and Flood Disasters in Guangdong Province
- Bulletin of Soiland Water Conservation Vol. 35, Issue 2, Pages: 263-268(2015)
- 作者机构：
  
  陕西师范大学旅游与环境学院,陕西,西安,710062
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.02.050
  CLC：
- Published：2015
- 稿件说明：
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LIU Yonglin, YAN Junping. Spatial and Temporal Variation Characteristics of Drought and Flood Disasters in Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 263-268.
DOI：

LIU Yonglin, YAN Junping. Spatial and Temporal Variation Characteristics of Drought and Flood Disasters in Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 263-268. DOI： 10.13961/j.cnki.stbctb.2015.02.050.

摘要

[目的] 研究广东省旱涝灾害时空变化特征

并对广东省1960-2012年旱涝等级进行划分。[方法] 应用小波分析、马可尔夫链、Mann-Kendall突变检验、经验正交函数以及克里金空间插值法等方法。[结果] (1)在时间上

广东省年降水量呈上升趋势

存在28

13和6 a的时间尺度上的震荡周期;(2)广东省旱涝灾害发生频率及未来几年旱涝状态与气温变化有良好的响应关系。(3)在空间上

粤东地区和粤西地区以涝灾为主

而广宁-广州-台山地区一带以旱灾为主。[结论] 广东省旱涝灾害与气温变化存在一定的响应关系

气温突变后旱涝灾害增多。

Abstract

[Objective] To analyze the spatial and temporal variation characteristics of drought/flood disasters and to divide drought/flood grade of Guangdong Province from 1960 to 2012.[Methods] Wavelet analysis

Markov chain

Mann-Kendall mutation test

empirical orthogonal function and Kringing method were used.[Results] (1) As for temporal variation

the average annual rainfall of Guangdong Province is on the rise with 28 a

13 a and 6 a time scale oscillation cycles; (2) Frequency of drought/flood disasters and the situation of drought/flood in the next few years have good responsive association with temperature changes. (3) As for spatial variations

the east and the west zones of Guangdong Province are likely undergoing flooding

while

Guangning-Guangzhou-Taishan region is easily being attacked by drought.[Conclusion] The drought/flood disasters increase after abrupt change of temperature

and there is a certain responsive relationship between drought/flood disasters and temperature changes.

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