Analysis on Runoff Trend and Influence Factors in Weihe River Basin

WEI Hongyi; LI Jing; WANG Jiang; TIAN Peng

doi:11894/1005-829x.2008.28(1).76

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Analysis on Runoff Trend and Influence Factors in Weihe River Basin

- Analysis on Runoff Trend and Influence Factors in Weihe River Basin
- Bulletin of Soiland Water Conservation Vol. 27, Issue 1, Pages: 76-80(2008)
- 作者机构：
  
  1. 西北农林科技大学资源环境学院, 陕西杨凌,712100
  2. 西北农林科技大学水利与建筑工程学院, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：11894/1005-829x.2008.28(1).76
  CLC： S157.1
- Published：2008
- 稿件说明：
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WEI Hongyi, LI Jing, WANG Jiang, et al. Analysis on Runoff Trend and Influence Factors in Weihe River Basin[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 76-80.
DOI：

WEI Hongyi, LI Jing, WANG Jiang, et al. Analysis on Runoff Trend and Influence Factors in Weihe River Basin[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 76-80. DOI： 11894/1005-829x.2008.28(1).76.

摘要

针对渭河流域华县水文站径流出现断流的现象

探讨渭河流域径流量的变化和影响因素显得尤为重要。以渭河流域华县站1956-2000年径流资料为基础

运用R/S分析法

对渭河流域径流序列进行了趋势分析。同时

对渭河流域径流变化的影响因素也进行了分析。结果表明

华县水文站年径流序列的赫斯特系数为0.7784

表明渭河流域径流具有持续下降的趋势。以1956-1969为基准期进行比对

1970-2000年渭河径流量年均减少3.79×10

其中气候作用减少1.96×10

占减少量的51.7%

人类活动作用减少1.83×10

占减少量的48.3%。

Abstract

Aimed atthe stream flow cut-off of Weihe river basin at Huaxian station

it is importantthatthe runoff trend and influence factors are analyzed in this area. According to the data of runoff in Weihe river basin from 1956 to 2000

the changing trend of runoff at Huaxian station is analyzed by using the R/S analysis (Rescale Range Analysis). At the same time

the influence factors of runoff are analyzed. Results show thatthe H urstcoefficientis 0. 778 4

showing thatthe runoff trend is on the persistentdecline. The annual average runoff had been reduced by 3. 79×109m3 from 1970 to 2000

compared to the runoff from 1956 to 1969. Among the influence factors

the reduction influenced by climate is 1. 96×109m3 and the reduction influenced by human activities is 1. 83×109m3

amounting for 51. 7% and 48. 3% of the total reduction

respectively.

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