干旱区生态环境知识资源中心(Arid): Wind erosion of soil influenced by clay amendment in the inland Pacific Northwest,USA

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DOI	10.1002/ldr.3709
	Wind erosion of soil influenced by clay amendment in the inland Pacific Northwest,USA
	Pi, Huawei; Huggins, David R.; Sharratt, Brenton
通讯作者	Pi, HW
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
英文摘要	Soil clay content is one of the primary intrinsic soil properties affecting soil erodibility and ecological processes, but few studies have tested the effects of clay amendment on wind erosion of soil. The objective of this study was therefore to evaluate the effect of progressive clay amendment on wind erosion of soil in the inland Pacific Northwest, where there is a high soil erodibility risk due to the arid and semiarid environment and sandy soils. Clay amendment significantly increased crust crushing energy when physical soil crusts formed after simulated rainfall. Crusts were then subject to simulated tillage to create an erodible soil surface before determining wind erosion in a wind tunnel. Soil loss significantly decreased with increasing clay amendment, even for low clay amendments (2%), soil loss at this percentage of clay amendment was 13.1-99.7% lower as compared with a soil surface devoid of clay amendment for the four soil types. The rate of change in erosion decreased with increasing amounts of clay amendment. Clay amendment was more effective in decreasing soil loss for two sandy loams or soil types with lower clay content. Clay amendment decreased soil loss primarily due to its impact on increasing aggregate geometric mean diameter (GMD), but aggregate crushing energy is also important in decreasing soil loss in terms of decreasing abrasion flux. Clay amendment is thus an effective way to restrain land deterioration in terms of increasing crust crushing energy, aggregate GMD, and decreasing abrasion flux.
英文关键词	abrasion flux aggregate size crust crushing energy sandy loam silt loam
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000559392000001
WOS关键词	THRESHOLD FRICTION VELOCITY ; DRY AGGREGATE STABILITY ; WATER-USE EFFICIENCY ; WINDBLOWN DUST ; AIR-QUALITY ; TILLAGE ; ROUGHNESS ; SEDIMENT ; ELECTROLYTE ; PARAMETERS
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/2XILL650/328153
作者单位	[Pi, Huawei] Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA; [Huggins, David R.; Sharratt, Brenton] USDA ARS, Northwest Sustainable Agroecosyst Res Unit, Pullman, WA 99164 USA
推荐引用方式 GB/T 7714	Pi, Huawei,Huggins, David R.,Sharratt, Brenton. Wind erosion of soil influenced by clay amendment in the inland Pacific Northwest,USA[J].
APA	Pi, Huawei,Huggins, David R.,&Sharratt, Brenton.
MLA	Pi, Huawei,et al."Wind erosion of soil influenced by clay amendment in the inland Pacific Northwest,USA".LAND DEGRADATION & DEVELOPMENT