The Hydromechanics of Vegetation for Slope Stabilization

Mulyono, Asep; Subardja, Achmad; Ekasari, I; Lailati, M; Sudirja, Rija; Ningrum, W

doi:10.1088/1755-1315/118/1/012038

Cited by 25 publications

(14 citation statements)

References 9 publications

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“…In addition, the aboveground biomass acts as a buffer that reduces the velocity of raindrops hence reducing its kinetic energy and preventing splash erosion by reducing big raindrops into smaller raindrops ( Marc & Richard, 2009 ). The depletion of soil moisture as a result of root absorption induce the soils to crack ( Mulyono et al, 2018 ) thus the rate of infiltration is increased in presence of vegetation which then reduces run-off as more water is removed by evapotranspiration from the soil ( Noraini & Roslan, 2008 ). Infiltration is the process of water movement from the ground surface to the soil via gravitational force ( Ghestem & Sidle, 2011 ).…”

Section: Survey Methodologymentioning

confidence: 99%

“…The striking hydraulic effect of vegetation is the reduction in flow capacity due to the contact between the plant and flowing water ( Noraini & Roslan, 2008 ). On the other hand, the attribute of roughness is contributed by the stem and roots that limit the capacity of flowing water, hence limiting the detachment and transportation of soil sediment ( Mulyono et al, 2018 ). Besides, the presence of vegetation leads to a reduction in the inertial force of the surface runoff while the water flow around the vegetation increases the viscous force ( Zhao et al, 2019 ).…”

Section: Survey Methodologymentioning

confidence: 99%

“…The penetration of excess water from rainfall coupled with the existing groundwater elevate the ground water pressure and hence activate seepage flow in the soil which then reduces slope stability due to the increase in soil moisture content ( Aminudin, 2009 ). Hence, water has indisputably appeared to be the main inducing factor of a slope failure in absence of vegetation that leads to landslide as the water that is infiltrated into the ground will seep directly into the pore space of soil, weakening soil aggregation as the soil becomes saturated thus reducing its shear strength ( Mulyono et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

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Present practices and emerging opportunities in bioengineering for slope stabilization in Malaysia: An overview

Dorairaj

Osman

2021

PeerJ

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Population increase and the demand for infrastructure development such as construction of highways and road widening are intangible, leading up to mass land clearing. As flat terrains become scarce, infrastructure expansions have moved on to hilly terrains, cutting through slopes and forests. Unvegetated or bare slopes are prone to erosion due to the lack of or insufficient surface cover. The combination of exposed slope, uncontrolled slope management practices, poor slope planning and high rainfall as in Malaysia could steer towards slope failures which then results in landslides under acute situation. Moreover, due to the tropical weather, the soils undergo intense chemical weathering and leaching that elevates soil erosion and surface runoff. Mitigation measures are vital to address slope failures as they lead to economic loss and loss of lives. Since there is minimal or limited information and investigations on slope stabilization methods in Malaysia, this review deciphers into the current slope management practices such as geotextiles, brush layering, live poles, rock buttress and concrete structures. However, these methods have their drawbacks. Thus, as a way forward, we highlight the potential application of soil bioengineering methods especially on the use of whole plants. Here, we discuss the general attributions of a plant in slope stabilization including its mechanical, hydrological and hydraulic effects. Subsequently, we focus on species selection, and engineering properties of vegetation especially rooting structures and architecture. Finally, the review will dissect and assess the ecological principles for vegetation establishment with an emphasis on adopting the mix-culture approach as a slope failure mitigation measure. Nevertheless, the use of soil bioengineering is limited to low to moderate risk slopes only, while in high-risk slopes, the use of traditional engineering measure is deemed more appropriate and remain to be the solution for slope stabilization.

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Section: Survey Methodologymentioning

confidence: 99%

Section: Survey Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Present practices and emerging opportunities in bioengineering for slope stabilization in Malaysia: An overview

Dorairaj

Osman

2021

PeerJ

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“…Various plant species have been studied for biological material in slope erosion control and slope stability [24][25][26][27][28]. Grasses have been a prevalent selection for slope erosion control as they can effectively offer surface coverage against rainfall impact and subsurface offer soil interparticle binding by plant root networking to increase the soil shear strength.…”

Section: Introductionmentioning

confidence: 99%

Root Tensile Resistance of Selected Pennisetum Species and Shear Strength of Root-Permeated Soil

Ettbeb

Rahman

Idris

et al. 2020

Applied and Environmental Soil Science

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It is widely recognized that vegetation plays a significant role in contrasting slope instability through the root reinforcement. The main objectives of this paper are to evaluate the root tensile of selected Pennisetum species, namely, P. pedicellatum (PPd) and P. polystachion (PPl), and to determine the soil shear strength of root-permeated soil from these species. The selected species were initially planted in the polybags using the hydroseeding technique. A mineral fertilizer of NPK ratio 10 : 8 : 10 was adopted in the hydroseeding mixture. Routine watering program was applied twice a day throughout growth observation for six months. Four replications were prepared for each species including a set of control polybags, which contained only soil for reference and comparison. The results of root tensile tests revealed the significant relationships between root diameter and tensile force. In comparison, the PPl was still indicated by higher values of root tensile force than PPd. The presence of roots clearly has contributed to the shear stress of root-permeated soils. The root density based on root biomass measurement attributed to the higher value of peak shear stress as achieved by PPl than PPd. The combined effects of root tensile and the soil shear strengths of this selected species can be used as biological materials in slope protection against erosion.

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“…The mountainous countries like Iran with numerous earthquake events and diverse geological and climatic conditions, has a high potential for this event (Pourghasemi et al, 2012). There are several factors affecting the occurrence of landslides, such as: Vegetation cover (Plants' roots cause stability of high slope hillside by absorbing water) (Mulyono, 2018), Geology (Rock type is the main criterion of sensitivity to landslides), Tectonic setting (Locating on areas with high tectonic activity leads to numerous landslides) (Guzzetti, et al, 1996), Precipitation and Snowmelt (Precipitation and the water generated as a result of snowmelt, lead to landslides because of increased weight of rock and soils and decreased resistance forces) (Paolini, et al, 2005), Height and Slope (Height and slope are some of the most important factors contributing to instability of a hillside. Higher slopes result in higher instability.…”

Section: Introductionmentioning

confidence: 99%

Application of Radar and Optical Satellite Imagery Data in Landslide Potential Mapping of Sheshpeer Sub-Catchment in Iran

Imanian

Tangestani

Asadi

2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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One of the serious dangers which threatens human communities especially those who are living in mountainous areas is the occurrence of landslides. Therefore, determination of the areas with potential for landslide events is very important for avoiding establishment of residential areas or industrial facilities. The aim of this study is to provide a landslide potential map in Sheshpeer sub-catchment, Iran, using an integration of remote sensing (RS) techniques and geographical information systems (GIS). Compared with the traditional approaches, these techniques are very fast, inexpensive and trustworthy in landslide mapping. For this purpose, we collected and produced seven data layers using GIS and RS, and then Analytic Hierarchy Process (AHP) method was applied for data analysis. Our results showed that among the twelve pervious landslide events in this area, nine of them are located in the regions with very high potentiality and the others are in highly potential regions for landslides occurrence.

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The Hydromechanics of Vegetation for Slope Stabilization

Cited by 25 publications

References 9 publications

Present practices and emerging opportunities in bioengineering for slope stabilization in Malaysia: An overview

Present practices and emerging opportunities in bioengineering for slope stabilization in Malaysia: An overview

Root Tensile Resistance of Selected Pennisetum Species and Shear Strength of Root-Permeated Soil

Application of Radar and Optical Satellite Imagery Data in Landslide Potential Mapping of Sheshpeer Sub-Catchment in Iran

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