Effect of herbaceous plant root density on slope stability in a shallow landslide-prone area

To evaluate the effects of herbaceous plants’ roots density on soil structure and slope stability in a shallow landslide-affected area, we determined the mechanical characteristics of roots of four herbs ( Cynodon dactylon, Artemisia sacrorum, Digitaria sanguinalis, and Clematis florida ) growing on...

Full description

Saved in:
Bibliographic Details
Published in:Natural hazards (Dordrecht) 2022-07, Vol.112 (3), p.2337-2360
Main Authors: Li, Jia, Wang, Xia, Jia, Haixia, Liu, Yang, Zhao, Yunfei, Shi, Changming, Zhang, Furong
Format: Article
Language:English
Subjects:
Bulk density
Civil Engineering
Cohesion
Earth and Environmental Science
Earth Sciences
Environmental Management
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Growth rate
Herbs
Hydrogeology
Landslide effects
Landslides
Landslides & mudslides
Mechanical properties
Mineral nutrients
Natural Hazards
Nutrient content
Nutrients
Original Paper
Physicochemical processes
Physicochemical properties
Plant roots
Plant species
Planting density
Porosity
Rhizosphere
Roots
Safety factors
Shear strength
Slope stability
Soil improvement
Soil mechanics
Soil nutrients
Soil porosity
Soil properties
Soil stability
Soil stabilization
Soil strength
Soil structure
Stability analysis
Structural stability
Tensile strength
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:To evaluate the effects of herbaceous plants’ roots density on soil structure and slope stability in a shallow landslide-affected area, we determined the mechanical characteristics of roots of four herbs ( Cynodon dactylon, Artemisia sacrorum, Digitaria sanguinalis, and Clematis florida ) growing on slopes prone to landslides and analyzed their effects on soil physicochemical properties. Root tensile strength and shear strength of root–soil composites were determined at different root densities. The slope safety factor was simulated using the strength reduction method. Compared with bare land soil, rhizosphere soils were characterized by higher bulk density, porosity, nutrient content, aggregate content, and greater stability ( p  
ISSN:0921-030X
1573-0840
DOI:10.1007/s11069-022-05268-0