干旱区生态环境知识资源中心(Arid): Assessment of wind erosion and physical and mechanical properties of bentonite clay mulch in an arid region

Arid

DOI	10.1016/j.jaridenv.2023.104974
	Assessment of wind erosion and physical and mechanical properties of bentonite clay mulch in an arid region
	Javiz, Elnaz; Jalalian, Ahmad; Mosaddeghi, Mohammad Reza; Chavoshi, Elham; Honarjoo, Naser
通讯作者	Mosaddeghi, MR
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2023
卷号	213
英文摘要	This study was conducted to assess the effect of bentonite-based mulch on wind erosion and soil physical and mechanical properties. The texture of majority of the soils in the study area was loam. Suspension of purified 20 mu m calcium-saturated bentonite clay was applied at a rate of 240 kg ha-1. Wind erosion rate was measured in situ using a portable wind tunnel device (height and width of 0.3 m, and length of 2.5 m) at 20 points of mulched area and 12 points of unmulched area. The results showed that the wind erosion rate varied in the range 0.50-1.05 kg m- 2 h-1 in the mulched area which was significantly reduced when compared with the control/unmulched area (i.e., 28.5 kg m- 2 h-1). Clay mulch application resulted in larger particles/aggregates than the control parts, because the bentonite clay was effective in structure formation as characterized by greater mean weight diameter (MWD of 0.68 mm) and geometric mean diameter (GMD of 0.73 mm) compared to their corresponding values of 0.18 and 0.40 mm in unmulched area. Clay mulching significantly increased the shear strength and penetration resistance of surface crust (9.37 and 175.2 kPa) compared to unmulched area (3.1 and 59 kPa) and lowered soil erodibility. Wind erosion rate had inverse and non-linear relationships with MWD, GMD, percent of aggregates larger than 0.25 mm (DSA>0.25 mm), shear strength and penetration resistance. The DSA>0.25 mm and shear strength showed the greatest effect on the wind erosion in the studied area.
英文关键词	Clay mulch Calcium-saturated bentonite Soil erosion Shear strength Penetration resistance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000966440000001
WOS关键词	SHEAR-STRENGTH ; SOIL-EROSION ; IN-SITU ; LAND
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/2XILL650/397148
推荐引用方式 GB/T 7714	Javiz, Elnaz,Jalalian, Ahmad,Mosaddeghi, Mohammad Reza,et al. Assessment of wind erosion and physical and mechanical properties of bentonite clay mulch in an arid region[J],2023,213.
APA	Javiz, Elnaz,Jalalian, Ahmad,Mosaddeghi, Mohammad Reza,Chavoshi, Elham,&Honarjoo, Naser.(2023).Assessment of wind erosion and physical and mechanical properties of bentonite clay mulch in an arid region.JOURNAL OF ARID ENVIRONMENTS,213.
MLA	Javiz, Elnaz,et al."Assessment of wind erosion and physical and mechanical properties of bentonite clay mulch in an arid region".JOURNAL OF ARID ENVIRONMENTS 213(2023).