Runoff response and sediment yield from urban road surfaces: an experimental study in semi-arid northern Ethiopia

被引：1
|
作者：
Hagos, Araya [1 ]
Grum, Berhane [1 ,5 ]
Gebru, Fiseha [2 ]
Yemane, Shishay [1 ]
Berhane, Solomon [1 ]
Berhe, Melaku [3 ]
Tekleyohannes, Sesen [1 ]
Abera, Tesfahunegn [4 ]
Aregawi, Ashenafi [1 ]
Abebe, Bizuneh A. [1 ]
机构：
[1] Mekelle Univ, Ethiopian Inst Technol Mekelle, Sch Civil Engn, Mekelle, Ethiopia
[2] Mekelle Univ, Dept Land Resources Management & Environm Protect, Mekelle, Ethiopia
[3] Mekelle Univ, Dept Agr & Resource Econ, Mekelle, Ethiopia
[4] Mekelle Univ, Sch Earth Sci, Mekelle, Ethiopia
[5] Mekelle Univ, Ethiopian Inst Technol Mekelle, Sch Civil Engn, POB 231, Mekelle, Ethiopia
来源：
HYDROLOGICAL SCIENCES JOURNAL | 2023年 / 68卷 / 05期
关键词：
cobblestone road; gravel road; runoff; runoff coefficient; sediment yield; slope gradient; WATER HARVESTING TECHNIQUES; SLOPE GRADIENT; CLIMATE-CHANGE; RAINFALL INTENSITY; SOIL-MOISTURE; ST-JOHN; URBANIZATION; IMPACTS; CATCHMENTS; QUALITY;
D O I：
10.1080/02626667.2023.2189522
中图分类号：
TV21 [水资源调查与水利规划];
学科分类号：
081501 ;
摘要：
This study investigated the effect of gravel and cobblestone road surfaces on runoff responses and sediment yield in semi-arid northern Ethiopia. A field experiment was set up with six treatments of gravel and cobblestone road surfaces at 1, 3 and 7% slope gradients. Cobblestone road surface produced significantly lower runoff than gravel. Slope gradient had a significant effect on the runoff amount from gravel and cobblestone road surfaces. Runoff reductions by cobblestone road surface compared to gravel at 1, 3 and 7% slopes were 27, 30 and 31%, respectively. Runoff coefficients for gravel road surface at 1, 3, and 7% slopes were 0.60, 0.65 and 0.68, respectively. Runoff coefficients for cobblestone at 1, 3 and 7% slopes were 0.41, 0.45 and 0.47, respectively. Slope gradient had a significant effect on sediment yield for a gravel road surface. Sediment yield from cobblestone, however, was insignificant compared to gravel.
引用
收藏
页码：719 / 730
页数：12
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