水土保持研究2012，Vol.19Issue(4)：244-246,251,4.
基于功率谱分析的蒋家沟泥石流侵蚀输沙量准周期的探讨
Power Spectral Analysis on Periodicity of Sediment Transport in Debris Flow in Jiangjiagou Watershed
摘要
Abstract
The sediment transport not only reflects the geography environment of the formative region of debris flow and the transport capacity but also indicates the accumulating extent of solid matter in accumulation zone of debris flow and the magnitude of debris flow scale.In this paper,based on the observation data for debris flow from 1965 to 2007 in Jiangjiagou watershed,Yunnan Province,the periodicity of transporting sediment in debris flow was analyzed by using the power spectral method.Results showed that transporting sediment of debris flow present the periodicity from 5 years to 7 years.The reason maybe lied in rainfall periodicity from 5 years to 6 years in this basin and the sloping erosion and landslide caused by rainfall.关键词
功率谱分析/泥石流/侵蚀输沙量/准周期Key words
power spectral analysis/debris flow/sediment transport/periodicity分类
天文与地球科学引用本文复制引用
田冰,王裕宜..基于功率谱分析的蒋家沟泥石流侵蚀输沙量准周期的探讨[J].水土保持研究,2012,19(4):244-246,251,4.基金项目
国家自然科学基金项目 （）
河北师范大学博士科研基金 （）
