Characteristics of Highway Waste Dump Erosion and Modeling on Loess Plateau

DONG Jian-zhi; ZHANG Ke-li; WANG Ying; YUAN Shuang; ZHANG Wei-xiang

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Characteristics of Highway Waste Dump Erosion and Modeling on Loess Plateau

更新时间：2024-11-07

- Characteristics of Highway Waste Dump Erosion and Modeling on Loess Plateau
- Vol. 25, Issue 2, (2011)
- 作者机构：
  
  地表过程与资源生态国家重点实验室,北京师范大学,地理学与遥感学院,北京,1008752. 交通部公路科学研究所,北京,100088
- 作者简介：
- 基金信息：
- DOI：
  CLC： S157.1
- Published：2011
- 稿件说明：
移动端阅览
DONG Jian-zhi, ZHANG Ke-li, WANG Ying, et al. Characteristics of Highway Waste Dump Erosion and Modeling on Loess Plateau[J]. 2011, 25(2).
DOI：

DONG Jian-zhi, ZHANG Ke-li, WANG Ying, et al. Characteristics of Highway Waste Dump Erosion and Modeling on Loess Plateau[J]. 2011, 25(2). DOI：

摘要

公路弃土场是道路侵蚀的重要单元之一

对其土壤侵蚀机理的研究与模拟是完善道路侵蚀模型、准确预测流域产沙量的基础。通过不同雨强(0.6~2.79 mm/min)的人工降雨实验对不同坡度(19.4%~78.1%)的弃土场坡面及坡度为30.6%的弃土场施工道路的土壤侵蚀规律进行了研究

并提出了弃土场土壤侵蚀预报方法。结果表明:弃土场土壤侵蚀速率与雨强呈较好的幂函数关系;小雨强下容重与侵蚀速率呈正相关

大雨强下容重与侵蚀速率呈负相关;弃土场坡面侵蚀量与坡度呈正相关

但侵蚀量随坡度的变化趋势与陡坡耕地有较大差异;使用EI30、容重及坡度等因子可以较好地预测弃土场土壤侵蚀量。

Abstract

Highway waste dump plays a quite important role in road erosion.Studying highway waste dump erosion is the base of completing road erosion model and it will also be helpful to predict watershed sediment yield accurately.Rainfall simulations with different intensities(0.6~2.79 mm/min) were employed to study the soil erosion processes of highway waste dump with different slope gradients and its construction roads.In addition

a model for predicting highway waste dump soil loss was also proposed.The results sho...

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