坡度和流量对崩积体坡面细沟水流输沙能力的影响

高鹏宇; 詹振芝; 蒋芳市; 林金石; 黄惠玉; 沙圣坚; 易德龙; 黄炎和

doi:10.13870/j.cnki.stbcxb.2018.03.011

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坡度和流量对崩积体坡面细沟水流输沙能力的影响

更新时间：2025-03-12

- 坡度和流量对崩积体坡面细沟水流输沙能力的影响
- Effects of Slop and Flow on Sediment Transport Capacity of the Colluvial Deposit for Rill Flow in Benggang
- 水土保持学报 2018年32卷第3期页码：68-73
- 作者机构：
  
  福建农林大学资源与环境学院, 福建省土壤环境健康与调控重点实验室,福州,350002
- 作者简介：
  
  [ "高鹏宇(1992-),男,在读硕士研究生,主要从事土壤侵蚀与治理研究。E-mail:1359406444@qq.com" ]
- 基金信息：
  
  福建省自然科学基金项目（2017J01459）国家自然科学基金项目（41571272）
- DOI：10.13870/j.cnki.stbcxb.2018.03.011
  中图分类号：
- 纸质出版：2018
- 稿件说明：
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高鹏宇, 詹振芝, 蒋芳市, 等. 坡度和流量对崩积体坡面细沟水流输沙能力的影响[J]. 水土保持学报, 2018,32(3):68-73.

GAO Pengyu, ZHAN Zhenzhi, JIANG Fangshi, et al. Effects of Slop and Flow on Sediment Transport Capacity of the Colluvial Deposit for Rill Flow in Benggang[J]. 2018, 32(3): 68-73.
高鹏宇, 詹振芝, 蒋芳市, 等. 坡度和流量对崩积体坡面细沟水流输沙能力的影响[J]. 水土保持学报, 2018,32(3):68-73. DOI： 10.13870/j.cnki.stbcxb.2018.03.011.

GAO Pengyu, ZHAN Zhenzhi, JIANG Fangshi, et al. Effects of Slop and Flow on Sediment Transport Capacity of the Colluvial Deposit for Rill Flow in Benggang[J]. 2018, 32(3): 68-73. DOI： 10.13870/j.cnki.stbcxb.2018.03.011.

摘要

为探究坡度及流量对崩岗崩积体土壤坡面细沟侵蚀输沙能力的影响，精确计算细沟水流输沙能力，建立坡面细沟输沙能力因子模型，以崩岗崩积体土壤为研究对象，进行室内水槽模拟试验研究。结果表明：（1）不同流量条件下，坡面细沟输沙能力随坡度的增大而增大，且增幅随坡度的增加而增大，可用一元线性方程表示；（2）不同坡度条件下，坡面细沟输沙能力随着流量的增大而增大，可用幂函数表示；（3）崩岗崩积体坡面细沟输沙能力因子模型为二元幂函数方程，其中流量（q）和坡度（S）的指数分别为1.054和0.617，流量对细沟输沙能力的影响大于坡度；（4）通过模型对比发现，Wu模型、ANSWERS模型及Zhang模型方程都无法很好地预测崩岗崩积体坡面细沟输沙能力。

Abstract

This study aimed to explore the influence of slope and flow on sediment transport capacity of colluvial deposits for rill erosion

calculate the rill flow sediment transport capacity accurately and establish rill sediment transport capacity factor model. The soil of colluvial deposit was taken as the case and a flume was used to conduct the experiment. The results showed that:(1) Rill flow sediment transport capacity increased with slope gradients at different flow discharge

which could be described by liner equation;(2) Rill flow sediment transport capacity increased with the increasing flow discharge at different slope gradients and the relationship could be described by power equation;(3) Rill flow sediment transport capacity factor model could be described by a dual binary power function

the index of flow rate (q) and slope (S) were 1.054 and 0.617 respectively. The effect of flow discharge was superior to slope gradient in the power function;(4) Compared with Wu model

ANSWERS model and Zhang model

the model of this study was more suitable to predicted sediment transport capacity of colluvial deposits for rill erosion.

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references

张光辉.土壤分离能力测定的不确定性分析[J].水土保持学报,2017,31(2):1-6.

闫丽娟,余新晓,雷廷武,等.坡面流输沙能力与土壤可蚀性参数对细沟土壤侵蚀过程影响的有限元计算模型研究[J].土壤学报,2009,46(2):192-200.

王莎,王占礼,袁殷,等.黄土坡面细沟水流输沙能力变化特征[J].水土保持学报,2012,26(4):104-107.

赵宇,陈晓燕,米宏星,等.估算细沟含沙水流剥蚀率的改进方法[J].农业工程学报,2014,30(15):174-181.

Zhang Q, Dong Y, Li F, et al. Estimation of the sediment transport capacity in eroding ephemeral gullies with a flume experiment method[J]. Catena, 2015, 9:1-7.

Foster G R, Meyer L D. Transport of soil particles by shallow flow[J]. American Society of Association Executives, 1972, 51(5):99-102.

Nearing M A, Foster G R, Lane L J, et al. A process-based soil erosion model for USDA-water erosion prediction project technology[J]. Transactions of the American Society of Association Executives, 1989, 32(5):1587-1593.

Beasley D B, Huggins L F, Monke E J. Modeling sediment yields from agricultural watersheds[J]. Journal of Soil and Water Conservation, 1982, 37(2):113-117.

Zhang G H, Liu Y M, Han Y F, et al. Sediment transport and soil detachment on steep slopes:I. Transport capacity estimation[J]. Soil Science Society of America Journal, 2009, 73(4):1291-1297.

袁殷,王占礼,刘俊娥,等.黄土坡面细沟径流输沙过程试验研究[J].水土保持学报,2010,24(5):88-91.

Mahmoodabadi M, Ghadiri H, Rose C, et al. Evaluation of GUEST and WEPP with a new approach for the determination of sediment transport capacity[J]. Journal of Hydrology, 2014, 513:413-421.

Wu B, Wang Z, Shen N, et al. Modelling sediment transport capacity of rill flow for loess sediments on steep slopes[J]. Catena, 2016, 147:453-462.

郝福星,黄炎和,林金石,等.指纹法研究花岗岩区典型崩岗小流域悬浮泥沙来源[J].水土保持学报,2017,31(2):45-49.

蒋芳市,黄炎和,林金石,等.坡度和雨强对崩岗崩积体侵蚀泥沙颗粒特征的影响[J].土壤学报,2014,51(5):974-982.

Wang Z, Yang X, Liu J, et al. Sediment transport capacity and its response to hydraulic parameters in experimental rill flow on steep slope[J]. Journal of Soil and Water Conservation, 2015, 70(1):36-44.

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