干旱区生态环境知识资源中心(Arid): Soil erosion-reducing efficiency of litter cover varies with litter shape and coverage in a desert ecosystem

Arid

DOI	10.1016/j.jaridenv.2021.104655
	Soil erosion-reducing efficiency of litter cover varies with litter shape and coverage in a desert ecosystem
	Wang, Shengqi; Baima, Gaweng; Ge, Jianzhen; Fu, Wenhui; Lin, Baojun; Zhao, Shuai; Tao, Runyu; Qiao, Qianluo; Guo, Liang; Kou, Jiancun
通讯作者	Kou, JC (corresponding author), Northwest A&F Univ, Coll Grassland Agr, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2022
卷号	196
英文摘要	Wind erosion happens frequently in winter and spring, when vegetation is bare and the surface soil is prone to erosion. Therefore, the erosion resistance provided by litter is important. To investigate the soil erosion-reducing efficiency of different types of litter, litter-covered sites of Populus simonii (LPS), Caragana korshinskii (LCK) and Bothriochloa ischaemum (LBI) were studied, respectively, and bare sandy land (BSL) was taken as a control. Results showed that litter cover increased the aerodynamic roughness by 44.9%-107.1% and the friction velocity by 11.5%-52.0%. Under the conditions of fixed coverage, changing wind speed and conditions of fixed wind speed, changing coverage, the average soil erosion-reducing efficiency both showed the highest in LBI, followed by LCK and LPS. According to the trend analysis, the critical coverage of litter of Populus simonii (PS), Caragana korshinskii (CK) and Bothriochloa ischaemum (BI) to reduce the soil erosion were 8.7%, 8.2% and 9.1%, respectively. We concluded that the soil erosion-reducing efficiency varied due to the shape of litter, and the difference was significant at high wind speed (10 m s(-1) and 12 m s(-1)). Besides, not all litter cover was effective in reducing erosion, and the critical coverage was a crucial factor that cannot be ignored.
英文关键词	Portable wind tunnel Wind speed Aerodynamic roughness Friction velocity Soil erosion rate
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000713010400004
WOS关键词	WATER EROSION ; WIND EROSION ; CRISSCROSS REGION ; SLOPING FIELDS ; TUNNEL ; VEGETATION ; FLOW ; TRANSPORT
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/2XILL650/374447
作者单位	[Wang, Shengqi; Baima, Gaweng; Ge, Jianzhen; Fu, Wenhui; Lin, Baojun; Zhao, Shuai; Tao, Runyu; Qiao, Qianluo; Guo, Liang; Kou, Jiancun] Northwest A&F Univ, Coll Grassland Agr, Yangling 712100, Shaanxi, Peoples R China; [Guo, Liang] Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shengqi,Baima, Gaweng,Ge, Jianzhen,et al. Soil erosion-reducing efficiency of litter cover varies with litter shape and coverage in a desert ecosystem[J],2022,196.
APA	Wang, Shengqi.,Baima, Gaweng.,Ge, Jianzhen.,Fu, Wenhui.,Lin, Baojun.,...&Kou, Jiancun.(2022).Soil erosion-reducing efficiency of litter cover varies with litter shape and coverage in a desert ecosystem.JOURNAL OF ARID ENVIRONMENTS,196.
MLA	Wang, Shengqi,et al."Soil erosion-reducing efficiency of litter cover varies with litter shape and coverage in a desert ecosystem".JOURNAL OF ARID ENVIRONMENTS 196(2022).