[1]GAO Ya-jun,HE Xiao-hui,ZHANG Zhan,et al.The Maximum Rainfall Amount Cyclical and Trend Analysis of Different Durations in Huangfuchuan Basin During 1956-2009[J].Research of Soil and Water Conservation,2014,21(01):251-253.
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The Maximum Rainfall Amount Cyclical and Trend Analysis of Different Durations in Huangfuchuan Basin During 1956-2009
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 01
Page number:
251-253
Column:
Public date:
2014-02-28
- Title:
- The Maximum Rainfall Amount Cyclical and Trend Analysis of Different Durations in Huangfuchuan Basin During 1956-2009
- Keywords:
- different duration; rainstorm; periodicity; tendency; Huangfuchuan
- CLC:
- P426.61+4
- DOI:
- -
- Abstract:
- Huangfuchuan basin was taken as study area, the annual maximum building method was used to calculate the largest rainstorm of different durations in hour by the sliding sample way. Based on GIS platform, Thiessen polygon was used to calculate Watershed lasted biggest rainstorm, autocorrelation coefficients and variance spectral density were used to express sequence internal linear dependence hydrological and hydrogeological nature series vibration phenomena, and then the cyclical hydrological series were analyzed by using the cycle model for trend prediction. The results showed that the maximum rainfalls of different storm occurrence periods have the same changing trend over time, and there were largest amounts of rainstorm before the 1970s, and the smallest in 1980s, the middle in 1990s, and the amount of heavy rains the past 10 years was little smaller than the 1970s. Compared with the 1970s, the percentage of reducition since the 1980s with the extension of rainfall, the rates of decrease was 5.1% to 19.1%, the maximum 24-hour rainfall of Huangfu station existed a change cycle of 3 years, 7 years and 15 years, respectively. Huangfuchuan watershed still has the possibility of heavy rain.
- References:
-
[1] 孙特生,李波,张新时.皇甫川流域气候变化特征及其生态效应分析[J].干旱区资源与环境,2012,26(9):1-7.
[2] 金争平,史培军,候福昌,等.黄河皇甫川流域土壤侵蚀系统模型和治理模式[M].北京:海洋出版社,1992.
[3] 丁晶,邓育仁.随机水文学[M].成都:成都科技大学出版社,1988.
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Last Update:
1900-01-01