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Study on Sediment Transport Characteristics of Compound Bed Form Combined of Unsubmerged Rigid Vegetation and Sand Dunes
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Zhi-heng YE1, Li-mo TANG2, Pei-tong NI1, Qing MIAO1
Water Resources and Power | 2023, 41(5) : 43 - 47
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Water Resources and Power | 2023, 41(5): 43-47
• HYDROLOGY, WATER RESOURCES AND ENVIRONMENT •
Study on Sediment Transport Characteristics of Compound Bed Form Combined of Unsubmerged Rigid Vegetation and Sand Dunes
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Zhi-heng YE1, Li-mo TANG2, Pei-tong NI1, Qing MIAO1
Affiliations
  • 1.Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510610, China
  • 2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Published: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20221289
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The bedload sediment transport in the compound channel is affected by the presence of emergent rigid vegetation, and there were few studies available on this topic. The laboratory experiments and theoretical analysis were used to investigate the effect of emergent rigid vegetation in parallel arrangement on the threshold Shields number and the bedload transport intensity. The results show that the presence of emergent rigid vegetation in parallel arrangement increased the threshold Shields Number by 97.2%, and the bedload transport intensity reduced by more than 80%. The modified Engelund Formula that was applicable to the emergent rigid vegetation in parallel arrangement conditions was developed to calculate the bedload transport intensity. The formula was shown to have a high accuracy by applying it to the other studies.

sand ripple  /  unsubmerged rigid vegetation  /  composite bed surface  /  bedload sediment  /  transport characteristics
Zhi-heng YE, Li-mo TANG, Pei-tong NI, Qing MIAO. Study on Sediment Transport Characteristics of Compound Bed Form Combined of Unsubmerged Rigid Vegetation and Sand Dunes[J]. Water Resources and Power, 2023 , 41 (5) : 43 -47 . DOI: 10.20040/j.cnki.1000-7709.2023.20221289
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Year 2023 volume 41 Issue 5
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221289
  • Receive Date：2022-06-22
  • Online Date：2026-01-28
  • Published：2023-05-25
Article Data
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History
  • Received：2022-06-22
  • Revised：2022-08-09
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    1.Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510610, China
    2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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