中南大学学报(自然科学版)2012,Vol.43Issue(12):4912-4916,5.
基于R/S分析法的地下水位动态变化趋势分析
Groundwater level regime variation trend on basis of rescaled range analysis
摘要
Abstract
To predict groundwater level regime variation trend of loess tableland areas in Xingping city, Hurst index and statistic Vt of the groundwater level depth series for well 065 and 066 were calculated by R/S analysis method as well as its modification form. After analyzing the recharge source of regional groundwater, Kendall rank correlation test method and 5 points moving average method were employed to recognize the trend components of corresponding annual average precipitation and surface water irrigation series, respectively. The results indicate that H of well 065 and 066 water level depth series equal 0.989 and 0.974 9 separately. Meanwhile, the corresponding relation curves between Vt and In t are both upward-sloping. Therefore, water levels of well 065 and 066 in future still have a significant dropping trend. The decreasing trend of annual average rainfall is not obvious while irrigation water reduces strikingly, which is consistent with the groundwater level dynamic change.关键词
R/S分析法/地下水位/时间序列/趋势Key words
rescaled range analysis/ groundwater level/ time series/ trend分类
天文与地球科学引用本文复制引用
张殷钦,胡伟,刘俊民..基于R/S分析法的地下水位动态变化趋势分析[J].中南大学学报(自然科学版),2012,43(12):4912-4916,5.基金项目
国家科技支撑计划项目(2006BAD11B05) (2006BAD11B05)
国家自然科学基金资助项目(50879071) (50879071)