Preliminary Analysis on Relationships Between Hydrological Characteristics and Precipitation of the Zhifanggou Small Watershed

DUAN Yi-zi; LV Hui-ming

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Preliminary Analysis on Relationships Between Hydrological Characteristics and Precipitation of the Zhifanggou Small Watershed

更新时间：2024-11-07

- Preliminary Analysis on Relationships Between Hydrological Characteristics and Precipitation of the Zhifanggou Small Watershed
- Vol. 25, Issue 5, (2011)
- 作者机构：
  
  1. 平凉市水土保持科学研究所
  2. 中国科学院水利部水土保持研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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DUAN Yi-zi, LV Hui-ming. Preliminary Analysis on Relationships Between Hydrological Characteristics and Precipitation of the Zhifanggou Small Watershed[J]. 2011, 25(5).
DOI：

DUAN Yi-zi, LV Hui-ming. Preliminary Analysis on Relationships Between Hydrological Characteristics and Precipitation of the Zhifanggou Small Watershed[J]. 2011, 25(5). DOI：

摘要

应用纸坊沟小流域1959-1997年降水、输沙及径流观测资料

分析了流域降水和输沙年际、月际变化特征以及年降水量与年径流量、年均土壤侵蚀模数之间的关系

时段治理程度与时段年均输沙量之间的关系。结果表明

降水量年内分配不均且凸显单一峰值

降水在年际上呈平水年-干旱年-平水年(较丰水年)周期性变化;多年平均输沙量月分布过程线峰型单一瘦削

土壤侵蚀及输沙量年际变幅大

稳定性极差;径流年变化幅度很大

地表径流的年际变化11年为一个周期

连续出现枯水年和丰水年的周期均为6年左右;年降水量与年径流量、年降水量与年土壤侵蚀模数、时段年均输沙量与时段治理程度呈线性相关关系

其相关程度均呈极显著(在0.01水平上)。

Abstract

On the basis of the observed data of precipitation

sediment and runoff during1959-1997 years in the Zhifanggou watershed

this paper analysed the relationships between precipitation and change characteristics of inter-annual sediment

and monthly variations

and between the annual precipitation and annual runoff

average annual soil erosion modulus

degree of control in a period and average annual sediment delivering in the same period as well.The results showed that the rainfall distributed uneven during the ye...

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