Study on Unbalance Characteristics of Sediment Transport by Rainfall Runoff Erosion on Slope

ZHOU Fanfan; GAO Jianen; WANG Zhaorun; WANG Lu; LIU Sixuan; GAO Zhe; LI Xinghua

doi:10.13870/j.cnki.stbcxb.2021.06.014

您当前的位置：

首页 >

文章列表页 >

Study on Unbalance Characteristics of Sediment Transport by Rainfall Runoff Erosion on Slope

更新时间：2025-03-12

- Study on Unbalance Characteristics of Sediment Transport by Rainfall Runoff Erosion on Slope
- Vol. 35, Issue 6, Pages: 95-100(2021)
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所, 陕西杨凌,712100
  2. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
  3. 水利部水土保持生态工程技术研究中心, 陕西杨凌,712100
  4. 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：10.13870/j.cnki.stbcxb.2021.06.014
  CLC： S157
- Published：2021
- 稿件说明：
移动端阅览
ZHOU Fanfan, GAO Jianen, WANG Zhaorun, et al. Study on Unbalance Characteristics of Sediment Transport by Rainfall Runoff Erosion on Slope[J]. 2021, 35(6): 95-100.
DOI：

ZHOU Fanfan, GAO Jianen, WANG Zhaorun, et al. Study on Unbalance Characteristics of Sediment Transport by Rainfall Runoff Erosion on Slope[J]. 2021, 35(6): 95-100. DOI： 10.13870/j.cnki.stbcxb.2021.06.014.

摘要

针对降雨和床面大糙度共同作用下坡面降雨径流侵蚀不平衡输沙特性研究薄弱的问题，采用室内模拟降雨试验的方法，研究不同降雨强度和坡长条件下的坡面降雨径流侵蚀输沙特性。结果表明：（1）坡面为裸坡、坡度为10°条件下，径流含沙量随坡长的增加呈增大趋势，当坡长由1 m增加至8 m时，同一雨强下径流含沙量增大3.28~7.15倍；径流含沙量随雨强的增大而增加，当雨强由40 mm/h增大至120 mm/h时，同一坡长下径流含沙量增加1.41~2.97倍。（2）分析降雨径流侵蚀条件下，水动力学参数对坡面径流挟沙能力的影响发现，水流挟沙能力与流速的3次方成正比，与水力半径和沉速的乘积成反比，得到降雨条件下的水流挟沙能力计算公式。（3）研究坡面降雨径流侵蚀输沙的不平衡特性表明，雨强与恢复饱和系数之间呈幂函数关系，给出坡面不平衡输沙模型并进行验证，表明该模型可以较好地模拟坡面降雨径流侵蚀输沙沿程变化。研究结果可为预测坡面径流侵蚀输沙沿程变化及完善坡面径流侵蚀机理提供参考。

Abstract

In view of the weak research on the unbalanced sediment transport characteristics of rainfall-runoff erosion under the combined action of rainfall and bed roughness

the variation characteristics of rainfall-runoff sediment transport under different rainfall intensities and slope lengths were studied by using the indoor simulated rainfall test. The results showed that: (1) Under the condition that the slope was a bare slope and the slope was 10°

when the slope length increased from 1 m to 8 m

the sediment concentrations of runoff increased by 3.28~7.15 times under the same rainfall intensity. The runoff sediment concentrations increased with the increase of rainfall intensities. When the rainfall intensities increased from 40 mm/h to 120 mm/h

the runoff sediment concentrations increased by 1.41~2.97 times under the same slope length. (2) According to the existing formula of sediment carrying capacity of river channel

after analyzing the influence of rainfall

slope

slope length and other factors on runoff sediment carrying capacity

and based on the rainfall test data and collected test data

the formula of sediment carrying capacity under rainfall condition was obtained

which could be applied to the calculation of sediment carrying capacity of overland flow under rainfall condition. (3) The influence of rainfall intensity on restoring saturation coefficient was discussed

and the unbalanced sediment transport model was proposed and verified. The verification results showed that the model had a good simulation effect on the variation of rainfall runoff sediment concentration along the slope. These results could provide reference for predicting the variation of sediment concentrations along the slope runoff and improving the erosion mechanism of thin layer runoff.

关键词

Keywords

references

郑粉莉, 高学田.坡面汇流汇沙与侵蚀-搬运-沉积过程[J].土壤学报, 2004, 41(1):134-139.

徐震, 高建恩, 赵春红, 等.雨滴击溅对坡面径流输沙的影响[J].水土保持学报, 2010, 24(6):20-23.

田均良, 周佩华, 刘普灵, 等.土壤侵蚀REE示踪法研究初报[J].水土保持学报, 1992, 6(4):23-27.

王玲玲, 范东明, 王文龙, 等.水蚀风蚀交错区不同坡长坡面产流产沙过程[J].人民黄河, 2016, 38(3):72-75.

汪晓勇, 郑粉莉.黄土坡面坡长对侵蚀一搬运过程的影响研究[J].水土保持通报, 2008, 28(3):1-4.

Liu J. Combined effects of rainfall regime and plot length on runoff and soil loss in the Loess Plateau of China[C]//Agu Fall Meeting. AGU Fall Meeting Abstracts, 2017.

Kinnell P. A review of the design and operation of runoff and soil loss plots[J].Catena, 2016, 145:257-265.

高建恩.推移质输沙规律的再探讨[J].水利学报, 1993(4):62-69.

赵春红, 高建恩, 邵辉, 等.不同土地利用方式坡面产流输沙过程模拟研究[J].四川大学学报(工程科学版), 2013, 45(2):38-46.

范荣生, 王高英, 李占斌.陡坡侵蚀产沙特点及含沙量过程计算模型研究[J].水土保持通报, 1993, 13(4):6-14.

焦鹏, 姚文艺, 严军, 等.基于GRNN的坡面径流输沙能力模型的试验研究[J].中国水土保持科学, 2012, 10(1):25-31.

郑粉莉, 赵军.人工模拟降雨大厅及模拟降雨设备简介[J].水土保持研究, 2004, 11(4):177-178.

杨帅, 高照良, 李永红, 等.工程堆积体坡面植物篱的控蚀效果及其机制研究[J].农业工程学报, 2017, 33(15):147-154.

张建军.黄土坡面地表径流挟沙能力研究综述[J].泥沙研究, 2007(4):77-81.

张瑞瑾, 谢鉴衡, 王明甫, 等.河流泥沙动力学[M].北京:水利电力出版社, 1989:204-230.

覃超, 何超, 郑粉莉, 等.黄土坡面细沟沟头溯源侵蚀的量化研究[J].农业工程学报, 2018, 34(6):160-167.

张锐波, 张丽萍, 付兴涛.坡面径流含沙量随雨强和坡长的动态过程[J].水土保持学报, 2018, 32(1):80-84.

王龙生, 蔡强国, 蔡崇法, 等.黄土坡面细沟发育过程中含沙量与水动力学参数的关系[J].水土保持学报, 2013, 27(5):1-6.

姚璟, 付兴涛.坡长对离石黄土坡面径流含沙量影响的模拟降雨研究[J].应用基础与工程科学学报, 2018, 26(3):493-501.

Lal R. Soil degradative effects of slope length and tillage methods on alfisols in Western Nigeria. I. Runoff, erosion and crop response[J].Land Degradation and Development, 1997, 8(3):201-219.

Bagarello V, Ferro V. Analysis of soil loss data from plots of differing length for the Sparacia experimental area, Sicily, Italy[J].Biosystems Engineering, 2010, 105(3):411-422.

刘俊娥, 王占礼, 袁殷, 等.黄土坡面薄层流产流过程试验研究[J].干旱地区农业研究, 2010, 28(5):223-227.

刘晓燕, 刘昌明, 党素珍.黄土丘陵区雨强对水流含沙量的影响[J].地理学报, 2019, 74(9):1723-1732.

霍云梅, 毕华兴, 朱永杰, 等.模拟降雨条件下南方典型粘土坡面土壤侵蚀过程及其影响因素[J].水土保持学报, 2015, 29(4):23-26, 84.

杨国录, 吴卫民.一维河流数值模拟算法的概述[J].泥沙研究, 1995(4):34-41.

韩其为.非均匀沙不平衡输沙的理论研究[J].水利水电技术, 2007(1):14-23.

张小帅, 张耀哲.基于MATLAB的非均匀悬移质不平衡输沙计算[J].人民黄河, 2014, 36(11):26-29.

周美蓉, 夏军强, 邓珊珊, 等.低含沙量条件下张瑞瑾挟沙力公式中参数确定及其在荆江的应用[J].水利学报, 2021, 52(4):409-419.

吴焱, 陆秋荣, 陈大可.长江口南汇东滩水域水流挟沙力计算公式比选[J].人民长江, 2014, 45(9):11-14.

姜义亮, 郑粉莉, 王彬, 等.东北黑土区片蚀和沟蚀对土壤团聚体流失的影响[J].生态学报, 2013, 33(24):7774-7781.

赵春红, 高建恩, 王飞, 等.含沙量对坡面流水动力学特性的影响研究[J].农业机械学报, 2013, 44(9):79-85.

赵连军, 吴国英, 王嘉仪.不平衡输沙含沙量垂线分布理论研究展望[J].水力发电学报, 2015, 34(4):63-69.

Views

699

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Soil Crusts on Erosion Characteristics of Alien Soil Slope in Mining Wasteland of Wula Mountain

Influence of Grass Coverage, Rain Intensity and Slope on Sediment Concentration of Runoff on Loess Slope

Effects of Short Slope Length on the Surface Runoff, Sediment, Nitrogen and Phosphorus of Aeolian Sandy Soils on the Slope Land

Spatial Pattern and Influencing Factors of Slope Length and Steepness Factors (

Difference of Slope Erosion Between Loess and Red Soil and Its Relationship with Soil Properties

Related Author

ZHA Tonggang

PEI Yile

ZHANG Zeyu

CUI Qingzhou

SONG Junling

WANG Dong

ZHANG Xiangxia

ZHANG Xinyu

Related Institution

Beijing Engineering Research Center of Soil and Water Conservation, Beijing Forestry University

Beijing Badaling Forest Farm

The Third Construction Co., Ltd. of China Construction First Group

College of Soil and Water Conservation,Beijing Forestry University

School of Water Resources and Hydropower, Xian University of Technology, Xian

⁰