Analisis Kerentanan Tanah Longsor Menggunakan Metode Frequency Ratio di Kabupaten Bandung Barat, Jawa Barat

Nugroho, Danang Dwi; Nugroho, Hary

doi:10.12962/j24423998.v16i1.7680

Cited by 9 publications

(9 citation statements)

References 1 publication

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“…The high intensity of rainfall and the favorable slope of the slopes cause landslides to occur frequently. In the same opinion from Arsyad (2010) in Nugroho and Nugroho (2020) suggests that landslides can occur if three conditions are met, namely (1) the slope is quite steep, (2) there is a layer below the soil surface which is impermeable and soft as a sliding surface, and (3) there is sufficient water in the soil so that the soil layer immediately above the impermeable layer becomes saturated [3]. This natural event can generally occur in areas that have various mountain and hilly paths.…”

Section: Introductionmentioning

confidence: 66%

Analysis of Landslide Susceptibility Using Frequency Ratio Methods in the Lisu Watershed, Barru Regency

Arsyad,

Hikmah

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Barru Regency is an area with a relatively high frequency of landslides according to BNPB data for 2015. This can be seen in several incidents from 2017 to 2021. The purpose of this research is to identify and determine the level of vulnerability of landslides that occur in an area by utilizing the method Frequency Ratio. The Lisu watershed study area is a research study because it is included in the largest local watershed in Barru Regency. This study uses landslide occurrence point data by including nine factors that cause landslides such as land cover, slope, slope aspect, elevation, rainfall, curvature, distance from river, distance from fault, and lithology. These nine factors are divided into five classes, namely very low, low, medium, high, and very high. The results of the analysis show that the AUC model success rate and prediction accuracy are 0.80 and 0.83. The very high vulnerability to landslides is spread over the Tanete Riaja and Pujananting Districts. This indicates that the frequency ratio method is appropriate as a basis for analyzing the level of landslide vulnerability in the Lisu watershed.

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Section: Introductionmentioning

confidence: 66%

Analysis of Landslide Susceptibility Using Frequency Ratio Methods in the Lisu Watershed, Barru Regency

Arsyad,

Hikmah

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…ROC (Receiver Operating Characteristic) analysis is a method used to describe, organize, and classify several predefined categories in a statistical model based on its performance. The application of ROC analysis has expanded to describe and analyze the behavior of diagnostic systems (Nugroho & Nugroho, 2020). A probability…”

Section: Map Validation Using Roc Analysis Methodsmentioning

confidence: 99%

Erosion Prediction and Soil and Water Conservation Scenario Using The SWAT Model

Candra Dewi,

Sulastri,

Arya Arthawan

et al. 2024

JTEP-L

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Increasing population and development has resulted in inappropriate land use within watersheds that increase soil erosion. One of the hydrologic models that can be used to predict erosion and soil and water conservation in a watershed is SWAT. This research was conducted to predict erosion and the guidance of soil and water conservation in the Yeh Empas Watershed. This research was carried out in several stages, including data collection, data analysis and map validation using the ROC (receiver operating characteristic) and AUC (area under curve) methods. Results revealed that Yeh Empas Watershed had a very light EHL (erosion hazard level) category was found in the downstream area with an annual erosion value of 0 – 14.68 t/ha. In the middle area, the EHL was categorized as light with an erosion value of 15.44 – 57.22 t.ha-1.y-1. The upstream area has moderate EHL with a value of 65.20 – 178.64 t.ha-1.y-1. The validation of the EHL map using the ROC method showed a result of 0.83. This value was classified as very good. It can be concluded that SWAT predictions can be used in estimating erosion and soil and water conservation scenario to reduce 85% erosion. Keywords: Erosion prediction, Soil and water conservation scenario, SWAT models, Yeh Empas Watershed.

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“…Peneliti terdahulu menyebutkan bahwa tanah longsor dipicu oleh kondisi topografi yang berubah (D. D. Nugroho & Nugroho, 2020). Kemudian tanah longsor juga dipengaruhi intensitas hujan tinggi pada wilayah dengan penggunaan lahan yang memiliki sifat jenuh terhadap air (Robbi et al, 2022).…”

Section: Pendahuluanunclassified

Pendekatan Analisis Spasial untuk Deteksi Kerawanan Longsor di Kecamatan Kedungadem Kabupaten Bojonegoro

Miftakhul Huda,

Zainul Ikhwan,

Insan Rendra

2024

INFORMASI

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Kecamatan Kedungadem adalah salah satu kecamatan di Kabupaten Bojonegoro yang sering mengalami kejadian tanah longsor. Kejadian tersebut dipicu dengan kondisi topografi curam serta hujan harian yang terjadi dalam kurun waktu yang lama. Tujuan penelitian yang dilakukan yaitu untuk memberikan informasi terkait daerah yang rawan akan bencana tanah longsor dengan pendekatan Sistem Informasi Geografis. Kemudian untuk analisis data menggunakan teknik weighted overlay yang diterapkan pada parameter yang berpengaruh terhadap terjadinya tanah longsor. Penelitian ini juga menambahkan survei lapangan untuk membuktikan tingkat akurasi hasil analisis spasial. Hasil analisis spasial rawan tanah longsor di Kecamatan Kedungadem dibedakan menjadi 4 tingkat kerawanan antara lain tingkat kerawanan rendah memiliki luas area 8.53 km2, untuk tingkat kerawanan sedang memiliki luas area 63.51 km2, pada tingkat kerawanan tinggi memiliki luas area 74.97 km2 dengan dan untuk tingkat kerawanan sangat tinggi memiliki luas area 7.48 km2. Sedangkan hasil survei lapangan di Kecamatan Kedungadem terdapat 6 lokasi kejadian tanah longsor yaitu berada pada Desa Kedungrejo, Desa Geger, Desa Dayu Kidul dan Desa Kedungadem. Lokasi tersebut sesuai dengan hasil analisis spasial dengan berada pada tingkat kerawanan longsor sedang sampai tingkat kerawanan longsor tinggi. Hasil penelitian ini dapat dijadikan sebagai dasar pengampilan keputusan untuk pemerintah dalam upaya mitigasi bencana khususnya bencana tanah longsor.

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Analisis Kerentanan Tanah Longsor Menggunakan Metode Frequency Ratio di Kabupaten Bandung Barat, Jawa Barat

Cited by 9 publications

References 1 publication

Analysis of Landslide Susceptibility Using Frequency Ratio Methods in the Lisu Watershed, Barru Regency

Analysis of Landslide Susceptibility Using Frequency Ratio Methods in the Lisu Watershed, Barru Regency

Erosion Prediction and Soil and Water Conservation Scenario Using The SWAT Model

Pendekatan Analisis Spasial untuk Deteksi Kerawanan Longsor di Kecamatan Kedungadem Kabupaten Bojonegoro

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