Overland-Flow Resistance Characteristics of Nonsubmerged Vegetation

doi:10.1061/(ASCE)IR.1943-4774.0001196

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Overland-Flow Resistance Characteristics of Nonsubmerged Vegetation
	Zhang, Kuandi 1,2; Wang, Zhigang 3; Wang, Guangqian 4; Sun, Xiaomin 1,2; Cui, Ningbo 5; Cui, NB (reprint author), Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Water Resource & Hydropower, Chengdu 610065, Sichuan, Peoples R China.
文章类型	Article
	2017
发表期刊	JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING
ISSN	0733-9437
通讯作者邮箱	zhangkuandi428@126.com ; wanglr@nwsuaf.edu.cn ; wangguanqian@tsinghua.edu.cn ; 1006012357@qq.com ; cuiningbo@126.com
卷号	143 期号:8
摘要	In order to discover the resistance characteristics of overland flow with vegetation cover, indoor drainage experiments with six slopes, seven flow discharges, and five degrees of vegetation cover are systematically studied based on the basic theories of hydrodynamics and hydraulics. The experimental results show that the overland flow index of nonsubmerged vegetation gradually increased from 0.333 to 0.845 as the degree of vegetation cover increased. Moreover, the relationship between the flow resistance, water depth, and Reynolds number did not present a monotonic increasing or decreasing tendency, but depended on the vegetation cover. When the degree of vegetation cover was lower than the critical value, the flow resistance coefficient decreased with increasing water depth and Reynolds number, whereas the opposite tendency was found when the degree of vegetation cover was greater than the critical value. The resistance coefficient gradually increased with increasing vegetation cover when the flow discharge was constant. Moreover, the increasing rate became steeper as flow discharge increased. The prediction formulae of average velocity and the resistance coefficient are proposed, and predicted results agree with corresponding experimental data. This conclusion is of scientific significance both in understanding the mechanisms of flow retardation and sand fixation by vegetation as well as in guiding the implementation of ecological restoration projects. (C) 2017 American Society of Civil Engineers.
关键词	Degree Of Vegetation Cover Overland Flow Resistance Coefficient Average Velocity Nonsubmerged Vegetation
学科领域	Agriculture ; Engineering ; Water Resources
DOI	10.1061/(ASCE)IR.1943-4774.0001196
URL	查看原文
收录类别	SCI
出版地	RESTON
语种	英语
WOS记录号	WOS:000408355300006
出版者	ASCE-AMER SOC CIVIL ENGINEERS
项目资助者	Open Funding [10501-1206]; Director Funding [A314021402-1619]; Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau; Institute of Water and Soil Conservation; Chinese Academy of Sciences and Ministry of Water Resources, China; National Natural Science Foundation of China [51579214]; Fundamental Research Funds for the Central Universities [Z109021564] ; Open Funding [10501-1206]; Director Funding [A314021402-1619]; Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau; Institute of Water and Soil Conservation; Chinese Academy of Sciences and Ministry of Water Resources, China; National Natural Science Foundation of China [51579214]; Fundamental Research Funds for the Central Universities [Z109021564]
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7951
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Cui, NB (reprint author), Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Water Resource & Hydropower, Chengdu 610065, Sichuan, Peoples R China.
作者单位	1.Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Water & Soil Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Coll Water Conservancy & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China 4.Tsinghua Univ, Dept Hydraul Engn, Beijing 100084, Peoples R China 5.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Water Resource & Hydropower, Chengdu 610065, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Kuandi,Wang, Zhigang,Wang, Guangqian,et al. Overland-Flow Resistance Characteristics of Nonsubmerged Vegetation[J]. JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING,2017,143(8).
APA	Zhang, Kuandi,Wang, Zhigang,Wang, Guangqian,Sun, Xiaomin,Cui, Ningbo,&Cui, NB .(2017).Overland-Flow Resistance Characteristics of Nonsubmerged Vegetation.JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING,143(8).
MLA	Zhang, Kuandi,et al."Overland-Flow Resistance Characteristics of Nonsubmerged Vegetation".JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING 143.8(2017).