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DOI	10.1002/ldr.3602
	Threshold friction velocities influenced by standing crop residue in the inland Pacific Northwest, USA
	Pi, Huawei 1; Huggins, David R.2; Sharratt, Brenton 3
通讯作者	Pi, Huawei ; Huggins, David R.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2020
卷号	31 期号:16 页码:2356-2368
英文摘要	Crop residue is an important factor affecting soil wind erosion. Few studies have tested the effects of crop residue on threshold friction velocities (Ut) which not only controls the initiation of wind erosion events but also the frequency and intensity of erosion events and thus the rate of land degradation. This study measured the threshold friction velocity (Ut) and aerodynamic roughness length (Z (0)) in the presence of winter wheat (Triticum aestivum L.), canola (Brassica napus L.), and garbanzo (Cicer arietinum) standing residue arrays to identify the sheltering capability against wind erosion of these different vegetation patterns. The influence of crop residue density and lateral cover (total roughness frontal area to soil surface area) on Ut and Z (0) was tested in a wind-tunnel. The results indicated Ut increased linearly with residue density for the three residue types and a similar trend was found for Z (0). However, Ut and Z (0) varied among crop residue types at the same residue density or frontal area index (lambda). Based on the slope of regression analysis, Ut and Z (0) of garbanzo were 40 and 25% higher than winter wheat and 43 and 119% higher than canola. This study suggested that crop residue type is important in determining U*t and Z (0) when modeling wind erosion.
英文关键词	aerodynamic roughness crop residue density lateral cover plant-soil interactions wind erosion
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000526138000001
WOS关键词	WIND EROSION ; ROUGHNESS ELEMENTS ; VEGETATION COVER ; SAND TRANSPORT ; SOILS ; TUNNEL ; FIELD ; SEDIMENT ; DESERT ; FLUX
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315133
作者单位	1.Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA; 2.ARS, Northwest Sustainable Agroecosyst Res Unit, USDA, Pullman, WA 99164 USA; 3.Washington State Univ, USDA, ARS, 215 Johnson Hall, Pullman, WA 99164 USA
推荐引用方式 GB/T 7714	Pi, Huawei,Huggins, David R.,Sharratt, Brenton. Threshold friction velocities influenced by standing crop residue in the inland Pacific Northwest, USA[J],2020,31(16):2356-2368.
APA	Pi, Huawei,Huggins, David R.,&Sharratt, Brenton.(2020).Threshold friction velocities influenced by standing crop residue in the inland Pacific Northwest, USA.LAND DEGRADATION & DEVELOPMENT,31(16),2356-2368.
MLA	Pi, Huawei,et al."Threshold friction velocities influenced by standing crop residue in the inland Pacific Northwest, USA".LAND DEGRADATION & DEVELOPMENT 31.16(2020):2356-2368.