干旱区生态环境知识资源中心(Arid): Vegetative-hydraulic parameters generated by agricultural crops for laminar flows under a semi-arid environment of Pernambuco, Brazil

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DOI	10.1016/j.ecolind.2019.105496
	Vegetative-hydraulic parameters generated by agricultural crops for laminar flows under a semi-arid environment of Pernambuco, Brazil
	Cantalice, J. R. B.1,2; Nunes, E. O. S.2; Cavacante, D. M.1; Barbosa, B.2,3; Barros Junior, G.2; Guerra, S. M. S.2; Rolim Neto, F. C.2
通讯作者	Cantalice, J. R. B.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2019
卷号	106
英文摘要	The structural parameters of vegetation have an important influence on the resistance imposed to shallow flow under the soil, being important in the control of floods, water erosion and sediment transport in the watersheds. Therefore, in order to obtain the hydraulic characteristics of overland flow, the variables of hydraulic resistance generated by the vegetation to surface flow, and the interrill erosion rates under semi-arid region led to the introduction of agricultural crops, through which shallow flows were generated on elephant grass (Pennisetum purpureum), corn (Zea mays sp.) and in a bare Entisol, placed in a toeslope landscape position. Results showed that the flow regime was slow, laminar and interrill erosion occurred (Re < 500 and Fr < 1). Nevertheless, the hydraulic characteristics of overland flow (Vm, h, q and log were probably affected by the proximity to the water table, a hypothesis supported by the obtained values for the infiltration. However, corn and principally elephant grass showed high hydraulic resistance to superficial flow and interrill erosion conferred by the highest ground coverage (lowest Ci = 0.198), by the effect of the sub-factors CiI, CiII and CiIII, and the lowest values of sediment concentration (CS), runoff coefficient (C), interrill detachment rate (Di), and soil loss (SL). Our results support the purpose of introducing agricultural crops in the Brazilian semi-arid region since increasing resistance to interrill erosion can be provided. Elephant grass is a more appropriate crop to be inserted under land management protocols in the semi-arid environment.
英文关键词	Interrill erosion Vegetal roughness Vegetal cover, drag coefficient Sheet flow
类型	Article
语种	英语
国家	Brazil ; Portugal
收录类别	SCI-E
WOS记录号	WOS:000490577900062
WOS关键词	INTERRILL EROSION PROCESSES ; PREDICTION PROJECT WEPP ; EMERGENT VEGETATION ; SURFACE ; SOIL ; RUNOFF ; DRAG ; ROUGHNESS ; COEFFICIENTS ; RESISTANCE
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310679
作者单位	1.Rural Fed Pernambuco Univ, Soil Conservat Engn Lab, Environm Engn Grad Program, Av Dom Manuel Medeiros N-A, BR-52171900 Recife, PE, Brazil; 2.Rural Fed Pernambuco Univ, PNPD CAPES Brazilian Program, Environm Engn Grad Program, Av Dom Manuel Medeiros N-A, BR-52171900 Recife, PE, Brazil; 3.Univ Nova Lisboa, MEtRiCS, Dept Ciencias & Tecnol Biomassa, Fac Ciencias & Tecnol, Campus Caparica, P-2829516 Caparica, Portugal
推荐引用方式 GB/T 7714	Cantalice, J. R. B.,Nunes, E. O. S.,Cavacante, D. M.,et al. Vegetative-hydraulic parameters generated by agricultural crops for laminar flows under a semi-arid environment of Pernambuco, Brazil[J],2019,106.
APA	Cantalice, J. R. B..,Nunes, E. O. S..,Cavacante, D. M..,Barbosa, B..,Barros Junior, G..,...&Rolim Neto, F. C..(2019).Vegetative-hydraulic parameters generated by agricultural crops for laminar flows under a semi-arid environment of Pernambuco, Brazil.ECOLOGICAL INDICATORS,106.
MLA	Cantalice, J. R. B.,et al."Vegetative-hydraulic parameters generated by agricultural crops for laminar flows under a semi-arid environment of Pernambuco, Brazil".ECOLOGICAL INDICATORS 106(2019).