干旱区生态环境知识资源中心(Arid): Hydrologic similarity: Dimensionless runoff indices across scales in a semi-arid catchment

Arid

DOI	10.1016/j.jaridenv.2021.104590
	Hydrologic similarity: Dimensionless runoff indices across scales in a semi-arid catchment
	Mounirou, Lawani Adjadi; Yonaba, Roland; Koita, Mahamadou; Paturel, Jean-Emmanuel; Mahe, Gil; Yacouba, Hamma; Karambiri, Harouna
通讯作者	Yonaba, R (corresponding author), Int Inst Water & Environm Engn 2iE, Lab Water HydroSyst & Agr LEHSA, Rue Sci 01,BP 594, Ouagadougou 01, Burkina Faso.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	193
英文摘要	In this study, an assessment of similarity relationships across runoff measurements at various spatial scales was carried in a typical Sahelian landscape, under semi-arid climate in northern Burkina Faso (west African Sahel). The scales of observations considered are the plot scale (1 m2, 50 m2, 150 m2) and the sub-catchment scale (6.1 ha, 33.8 ha), with various soil surface conditions and slopes. These scales were monitored during six years (2010-2015) under natural rainfall. Based on monitoring data, a runoff potential index I1 and an effective runoff index I2 are developed, encapsulating the physical characteristics of the observation scale into dimensionless forms, hence reducing their sensitivity to the scale effects. These indices help in assessing hydrological similarity across measurement scales. Results showed that runoff decreases with the increase of the observation scale size. Besides, dimensionless indices vary following a logarithmic decay relationship with the scale size (R2 > 0.98). Such results highlight the non-linear nature of runoff processes and also promotes similarity analysis as a means to model hydrological processes through soil surface conditions and landscape descriptors.
英文关键词	Dimensional analysis Hydrologic similarity Runoff Scale effect Scaling law
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000681249600007
WOS关键词	SOIL-EROSION ; SURFACE RUNOFF ; LAND-USE ; MULTISCALE APPROACH ; PLOT-SCALE ; RAINFALL ; GENERATION ; SLOPES ; CLASSIFICATION ; AREAS
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368436
作者单位	[Mounirou, Lawani Adjadi; Yonaba, Roland; Koita, Mahamadou; Yacouba, Hamma; Karambiri, Harouna] Int Inst Water & Environm Engn 2iE, Lab Water HydroSyst & Agr LEHSA, Rue Sci 01,BP 594, Ouagadougou 01, Burkina Faso; [Paturel, Jean-Emmanuel; Mahe, Gil] Univ Montpellier, HydroSci Montpellier HSM, CC 57, UMR 5569, 163 Rue Auguste Broussonnet, F-34090 Montpellier, France
推荐引用方式 GB/T 7714	Mounirou, Lawani Adjadi,Yonaba, Roland,Koita, Mahamadou,et al. Hydrologic similarity: Dimensionless runoff indices across scales in a semi-arid catchment[J],2021,193.
APA	Mounirou, Lawani Adjadi.,Yonaba, Roland.,Koita, Mahamadou.,Paturel, Jean-Emmanuel.,Mahe, Gil.,...&Karambiri, Harouna.(2021).Hydrologic similarity: Dimensionless runoff indices across scales in a semi-arid catchment.JOURNAL OF ARID ENVIRONMENTS,193.
MLA	Mounirou, Lawani Adjadi,et al."Hydrologic similarity: Dimensionless runoff indices across scales in a semi-arid catchment".JOURNAL OF ARID ENVIRONMENTS 193(2021).