Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years

Penghui Wang; Yanqing Li; Xiangfei Yue

Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years

Penghui Wang, Yanqing Li, Xiangfei Yue

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Sen's slope estimation method, Mann-Kendal trend analysis method, M-K mutation test method and Morlet wavelet transform were used for characteristic analysis, trend estimation, mutation test and period analysis of rainfall erosivity in Guilin from 1956 to 2015. The results show that the rainfall erosivity of Guilin City has not increased significantly in the past 50 years, the inter-annual variation coefficient is 0.19, which is moderate variation; the erosivity is the strongest in the 1990s, and the erosivity is the smallest in the 1980s;The annual rainfall erosivity has increased since 1968, with three mutations in 1968, 2002 and 2015 respectively; the ecliptic force in the rainy season controls the trend of annual rainfall erosivity; the erosivity has a cycle of 3-5a, 10-12a, 35a, 42a, which may be related to solar activity and PDO.

Original language	English
Title of host publication	Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development
Editors	Henry Zhang, Changbo Cheng
Publisher	Aussino Academic Publishing House
Pages	313-320
Number of pages	8
ISBN (Electronic)	9781921712678
Publication status	Published - Feb 10 2019
Externally published	Yes
Event	6th Academic Conference of Geology Resource Management and Sustainable Development, GRMSD 2018 - Beijing, China Duration: Dec 27 2018 → Dec 28 2018

Publication series

Name	Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development

Conference

Conference	6th Academic Conference of Geology Resource Management and Sustainable Development, GRMSD 2018
Country	China
City	Beijing
Period	12/27/18 → 12/28/18

Keywords

Guilin
MK
Period
Rainfall erosivity
Trend
Wavelet

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Geology

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Cite this

Wang, P., Li, Y., & Yue, X. (2019). Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years. In H. Zhang, & C. Cheng (Eds.), Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development (pp. 313-320). (Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development). Aussino Academic Publishing House.

Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years. / Wang, Penghui; Li, Yanqing; Yue, Xiangfei.

Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development. ed. / Henry Zhang; Changbo Cheng. Aussino Academic Publishing House, 2019. p. 313-320 (Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, P, Li, Y & Yue, X 2019, Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years. in H Zhang & C Cheng (eds), Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development. Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development, Aussino Academic Publishing House, pp. 313-320, 6th Academic Conference of Geology Resource Management and Sustainable Development, GRMSD 2018, Beijing, China, 12/27/18.

Wang P, Li Y, Yue X. Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years. In Zhang H, Cheng C, editors, Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development. Aussino Academic Publishing House. 2019. p. 313-320. (Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development).

Wang, Penghui ; Li, Yanqing ; Yue, Xiangfei. / Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years. Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development. editor / Henry Zhang ; Changbo Cheng. Aussino Academic Publishing House, 2019. pp. 313-320 (Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development).

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abstract = "Sen's slope estimation method, Mann-Kendal trend analysis method, M-K mutation test method and Morlet wavelet transform were used for characteristic analysis, trend estimation, mutation test and period analysis of rainfall erosivity in Guilin from 1956 to 2015. The results show that the rainfall erosivity of Guilin City has not increased significantly in the past 50 years, the inter-annual variation coefficient is 0.19, which is moderate variation; the erosivity is the strongest in the 1990s, and the erosivity is the smallest in the 1980s;The annual rainfall erosivity has increased since 1968, with three mutations in 1968, 2002 and 2015 respectively; the ecliptic force in the rainy season controls the trend of annual rainfall erosivity; the erosivity has a cycle of 3-5a, 10-12a, 35a, 42a, which may be related to solar activity and PDO.",

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