TY - GEN
T1 - Study on the variation characteristics and periodic evolution of rainfall erosivity in Guilin in the past 50 years
AU - Wang, Penghui
AU - Li, Yanqing
AU - Yue, Xiangfei
N1 - Funding Information:
Funding Resources: The study is financially supported by the National Natural Science Foundation of China (No. 41502342); Guangxi Natural Science Foundation(2015GXNSFBA139188); National Key Research and Development Plan (2016YFC0502503) Corresponding Author: LI Yan Qing, Email: lyq@karst.ac.cn
Funding Information:
The study is financially supported by the National Natural Science Foundation of China (No. 41502342); Guangxi Natural Science Foundation(2015GXNSFBA139188); National Key Research and Development Plan (2016YFC0502503)
PY - 2019/2/10
Y1 - 2019/2/10
N2 - 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.
AB - 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.
KW - Guilin
KW - MK
KW - Period
KW - Rainfall erosivity
KW - Trend
KW - Wavelet
UR - http://www.scopus.com/inward/record.url?scp=85062801945&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:85062801945
T3 - Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development
SP - 313
EP - 320
BT - Proceedings of the 6th Academic Conference of Geology Resource Management and Sustainable Development
A2 - Zhang, Henry
A2 - Cheng, Changbo
PB - Aussino Academic Publishing House
T2 - 6th Academic Conference of Geology Resource Management and Sustainable Development, GRMSD 2018
Y2 - 27 December 2018 through 28 December 2018
ER -