Membangun Metode Identifikasi Longsor Berbasis Foto Udara Format Kecil Di Das Bompon, Magelang, Jawa Tengah

Masruroh, Heni; Sartohadi, Junun; Setiawan, Anggri

doi:10.22146/mgi.15640

Cited by 7 publications

(9 citation statements)

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“…This phenomenon can happen because the type of landslide at the research site is translational, so that the mixed and light material is on the toe. Masruroh [1] explained that the type of translational landslide has the characteristics of a planar-shaped landslide body so that the debris material is located at the toe of the landslide. Istiqomah [16] also explains that the toe of the landslide has the lowest height so that it becomes a deposition area or deposition of materials from above.…”

Section: Analysis Of the Availability Of Water On Landslide Depositsmentioning

confidence: 99%

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Soil water availability for crops on landslide deposits in Bompon Sub-Watershed, Magelang

Aliyyah

Pulungan

Sartohadi

2022

IOP Conf. Ser.: Earth Environ. Sci.

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One of the important factors in agricultural practices is the soil water availability for crops. This study was aimed to identify landslide deposits, assess the soil characteristics of each landslide zone, the effect of soil physical characteristics on the soil water availa bility for crops, and determine the availability of water for crops in landslide deposits. The soil sampling was carried out by purposive sampling method at 12 landslide points and 4 zones, i.e. crown, main-scarp, main-body, a nd toe-slope at two soil depths (0-100 cm and 100-200 cm). The data were analyzed with a regression test and standard deviation method. The results showed that the high soil water availability for crops occurred at the toe-slope zone, 0-100 cm depth and at the main-scarp zone, 100-200 cm depth. The soil physical properties clearly correlated with soil moisture content. Based on the soil water a vaila bility level, it might be suitable for annual crops (i.e. cassava, ginger, sweet potatoes, etc.) at the toe-slope zone and perennial crops i.e. Albizia chinensis, etc.) at the main- scarp zone. Therefore, landslides in the Bompon Sub-watershed, Magelang, is potentially utilized for agricultural development.

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Section: Analysis Of the Availability Of Water On Landslide Depositsmentioning

confidence: 99%

“…Bompon sub-watershed is an area with a high level of landslide vulnerability and hilly morphology. The soil in this area has a characteristic of thick pits [1]. Besides, most of the existing soil has a clay texture [2].…”

Section: Introductionmentioning

confidence: 99%

Soil water availability for crops on landslide deposits in Bompon Sub-Watershed, Magelang

Aliyyah

Pulungan

Sartohadi

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Generally, active landslides are characterized by slope conditions in the former steep landslides and have not been widely used. According to Masruroh (2016), active landslides provide an overview of the conditions of mixed soil. Varnes (1968) said that the absence of material movement during the last 12 months characterizes inactive landslides.…”

Section: Introductionmentioning

confidence: 99%

Variation of Surface Soil Characteristics in Landslide Deposition Areas Based on Landslide Activities and Slope Position in Bompon Sub-Watershed, Magelang

Sari¹,

Pulungan²,

Sartohadi³

2022

Proceedings of the 2nd International Conference on Smart and Innovative Agriculture (ICoSIA 2021)

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The physical characteristics of the surface soil are the crucial soil characteristics related to landslides. They can cause landslides and change due to landslides. The physical characteristics of the surface soil in agricultural land play an important role in providing nutrients and as a medium for plant growth. Landslide activities and slope position can change soil characteristics significantly. Studies on the physical characteristics of surface soil in landslide deposition areas have been studied previously, however most of those studies are not discussed yet in regarding with relation of this landslide deposition and agricultural land. The purpose of this study is to characterize and examine the variation of physical characteristics of the surface soil in landslide deposition areas among different landslide activities and slope positions. The method used in this study was purposive sampling based on landslide activities (active, inactive) and slope position (upper-, middle-, and lower slope). Soil samples were taken on the landslide deposits with a depth of 0-30 cm. Soil samples were 11 variations. The results showed that the physical characteristics of surface soil based on landslide activities or slope position were fine texture or clay; particle density, bulk density, and porosity were uniform; high atterberg numbers; slightly slow permeability; and low c-organic as well as organic matter content. Variation of the physical characteristics of surface soil showed high values on active landslides and lower slopes. The most influenced soil property due to landslide activities and slope position was soil permeability.

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“…Most of them who use the land do not pay attention to the physical condition of the slopes which then leads to landslide potential. Most of the area surfaces is hills with slope angle of 8-45% (Masruroh, 2016). Such hilly surface is very influential to the landslide potential, because land surface is related to angles and slope stability (Masruroh, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Altered soil conditions will be very soft when saturated with water. Thus, their existence can be one of the factors of cont plasticity of landslides in Bompon Sub-watershed (Masruroh, 2016).…”

Section: Introductionmentioning

confidence: 99%

Pedogenesis of Mt. Sumbing Volcanic Ash above The Alteration Clay Layer in The Formation of Landslide Susceptible Soils in Bompon Sub-Watershed

Wida

Maas

Sartohadi

2019

ipas

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Numerous researches on landslides have been carried out by many researches. However, studies on soil physical properties related to landslides potential in volcanic area are still rare. The objective of this study was to examine the effect of soil physical properties on landslides potential. To collect the soil sample, sampling area method was applied. The soil type used in this study was the residual soil. The values of clay liquid limit, plasticity limit, plasticity index, water content, COLE index were used to measure the physical properties of the soil. Organic material was used as the supporting data. The results showed that the soil in the command area showed high value of clay which exceeded 50%. Such high level conditions in each profile affect the liquid limit; plasticity limit, plasticity index, water content, COLE index and organic material. Based on the results, it can be concluded that residual soils with significantly high clay values illustrated the risk of landslide fields formation in Bompon sub-watershed. The clay soil layer was the controlled factor of soil movement.

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Membangun Metode Identifikasi Longsor Berbasis Foto Udara Format Kecil Di Das Bompon, Magelang, Jawa Tengah

Cited by 7 publications

References 0 publications

Soil water availability for crops on landslide deposits in Bompon Sub-Watershed, Magelang

Soil water availability for crops on landslide deposits in Bompon Sub-Watershed, Magelang

Variation of Surface Soil Characteristics in Landslide Deposition Areas Based on Landslide Activities and Slope Position in Bompon Sub-Watershed, Magelang

Pedogenesis of Mt. Sumbing Volcanic Ash above The Alteration Clay Layer in The Formation of Landslide Susceptible Soils in Bompon Sub-Watershed

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