城市路面径流响应和产沙量:埃塞俄比亚北部半干旱地区的实验研究

IF 2.8 3区环境科学与生态学 Q2 WATER RESOURCES

Hydrological Sciences Journal-Journal Des Sciences Hydrologiques Pub Date : 2023-03-09 DOI:10.1080/02626667.2023.2189522

Araya Hagos, B. Grum, Fiseha Gebru, Shishay Yemane, Solomon Berhane, M. Berhe, Sesen Tekleyohannes, Tesfahunegn Abera, Ashenafi Aregawi, B. Abebe

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引用次数: 0

摘要

本研究探讨了埃塞俄比亚北部半干旱地区砾石和鹅卵石路面对径流响应和产沙量的影响。采用1、3、7%坡度的碎石和鹅卵石路面进行了现场试验。鹅卵石路面产生的径流量明显低于砾石路面。坡度对砂砾和鹅卵石路面径流量有显著影响。在坡度为1、3和7%的情况下，与砾石路面相比，鹅卵石路面的径流减少量分别为27.30和31%。1、3、7%坡度砾石路面径流系数分别为0.60、0.65、0.68。1、3、7%坡面卵石径流系数分别为0.41、0.45、0.47。坡度对砂砾路面产沙量有显著影响。然而，与砾石相比，鹅卵石的产沙量微不足道。

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

ABSTRACT 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.

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来源期刊

Hydrological Sciences Journal-Journal Des Sciences Hydrologiques 环境科学-水资源

CiteScore

6.60

自引率

11.40%

发文量

144

审稿时长

9.8 months

期刊介绍： Hydrological Sciences Journal is an international journal focused on hydrology and the relationship of water to atmospheric processes and climate. Hydrological Sciences Journal is the official journal of the International Association of Hydrological Sciences (IAHS). Hydrological Sciences Journal aims to provide a forum for original papers and for the exchange of information and views on significant developments in hydrology worldwide on subjects including: Hydrological cycle and processes Surface water Groundwater Water resource systems and management Geographical factors Earth and atmospheric processes Hydrological extremes and their impact Hydrological Sciences Journal offers a variety of formats for paper submission, including original articles, scientific notes, discussions, and rapid communications.