干旱区生态环境知识资源中心(Arid): Estimating slope stability by the root reinforcement mechanism of Artemisia sacrorum on the Loess Plateau of China

Arid

DOI	10.1016/j.ecolmodel.2021.109473
	Estimating slope stability by the root reinforcement mechanism of Artemisia sacrorum on the Loess Plateau of China
	Su, Xuemeng; Zhou, Zhengchao; Liu, Jun'e; Cao, Liguo; Liu, Junyang; Wang, Peipei
通讯作者	Zhou, ZC ; Liu, JE (corresponding author), Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Peoples R China.
来源期刊	ECOLOGICAL MODELLING
ISSN	0304-3800
EISSN	1872-7026
出版年	2021
卷号	444
英文摘要	Root reinforcement is considered an important factor contributing to vegetated hillslope stability. The study aims to extend the understanding of spatial variance in the distributions of roots and mechanical characteristics of Artemisia sacrorum (Artemisia gmelinii Web.) regarding root reinforcement after returning cropland to forestland and grassland on the Loess Plateau of China. The Wu and Waldron model (WW model) and infinite slope method were adopted to estimate the sensitivity of root reinforcement to the mechanical characteristics and the distributions of roots. The results demonstrated that 1) over 80% of root parameters were found in the top 0.3 m soil layer, in which the proportions of the densities of root length (RLD), root surface area (RSAD) and root volume (RVD) were 81.7%, 89.9% and 92.7%, respectively. The root parameters declined with increasing soil depth. 2) The tensile characteristics (tensile strength and force) were significantly correlated with the root diameters as power functions. There was a significant difference in tensile strength between the 0 similar to 0.7 mm and other diameter classes, while there was no significant difference amongst the five gauge lengths. 3) The slope safety factor (F-s) of Artemisia sacrorum was always larger than 1, both in different soil depths (0.1 m, 0.2 m and 0.3 m) and at slopes < 45 degrees Artemisia sacrorum could mainly stabilise the slope in the silt loam area of the Loess Plateau of China. These conclusions have a theoretical and practical significance for the slope stability, surface landslides and other geological hazards in arid environments.
英文关键词	Root reinforcement Distribution of roots Tensile strength Slope stability Loess plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000624994300001
WOS类目	Ecology
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/2XILL650/368944
作者单位	[Su, Xuemeng; Zhou, Zhengchao; Liu, Jun'e; Cao, Liguo; Liu, Junyang; Wang, Peipei] Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Peoples R China; [Su, Xuemeng; Zhou, Zhengchao; Liu, Jun'e; Cao, Liguo; Liu, Junyang; Wang, Peipei] Shaanxi Normal Univ, Natl Demonstrat Ctr Expt Geog Educ, Xian 710119, Peoples R China
推荐引用方式 GB/T 7714	Su, Xuemeng,Zhou, Zhengchao,Liu, Jun'e,et al. Estimating slope stability by the root reinforcement mechanism of Artemisia sacrorum on the Loess Plateau of China[J],2021,444.
APA	Su, Xuemeng,Zhou, Zhengchao,Liu, Jun'e,Cao, Liguo,Liu, Junyang,&Wang, Peipei.(2021).Estimating slope stability by the root reinforcement mechanism of Artemisia sacrorum on the Loess Plateau of China.ECOLOGICAL MODELLING,444.
MLA	Su, Xuemeng,et al."Estimating slope stability by the root reinforcement mechanism of Artemisia sacrorum on the Loess Plateau of China".ECOLOGICAL MODELLING 444(2021).