ADRIYANTO, TEGUH (2022) TINGKAT KERENTANAN TANAH TERHADAP POTENSI LONGSOR DI DESA PESANGKALAN KECAMATAN PAGEDONGAN KABUPATEN BANJARNEGARA. Other thesis, UPN 'Veteran" Yogyakarta.
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Abstract
TINGKAT KERENTANAN TANAH TERHADAP POTENSI LONGSOR
DI DESA PESANGKALAN KECAMATAN PAGEDONGAN
KABUPATEN BANJARNEGARA
Oleh: Teguh Adriyanto
Dibimbing Oleh: Djoko Mulyanto dan Susila Herlambang
ABSTRAK
Desa Pesangkalan memiliki topografi perbukitan bergelombang dengan kemiringan
lereng curam, serta curah hujan tinggi yang dapat memicu terjadinya longsor.
Tujuan penelitian ini yaitu untuk menetapkan dan memetakan klasifikasi serta
sebaran tingkat kerentanan tanah terhadap potensi longsor di Desa Pesangkalan.
Penelitian ini dilakukan dengan survei di lapangan serta ditunjang analisis tanah di
laboratorium dan pemetaan SIG dengan ArcMap. Proses analisis menggunakan
Sistem Informasi Geografi (SIG) dengan menganalisis parameter kerentanan tanah
terhadap longsor di Desa Pesangkalan. Metode yang digunakan yaitu scoring atau
pembobotan. Parameter-parameter yang digunakan untuk menentukan tingkat
kerentanan adalah jenis batuan, tekstur tanah atas, tekstur tanah bawah, kemiringan
lereng, permeabilitas, ketebalan tanah, penggunaan lahan, dan curah hujan. Setiap
parameter memiliki skor dikalikan dengan bobot masing-masing parameter, hasil
perkalian skor dan bobot dijumlahkan berdasarkan lokasi geografisnya. Penentuan
klasifikasi tingkat kerentanan tanah terhadap potensi longsor terdapat 5 kelas. Hasil
penelitian menunjukkan bahwa daerah dengan tingkat kerentanan tinggi terhadap
potensi longsor di Desa Pesangkalan terdapat pada Sistem Lahan KTM-H-A, KTM�H-C, Ktog-H-A, TMP-H-C, dan TMW-H-C dengan total luas 651,49 ha atau
48,22%. Tingkat kerentanan sedang terhadap potensi longsor terdapat pada Sistem
Lahan Ktog-H-L, Ktog-P-L, TMP-H-A, TMP-H-L, dan TMW-H-A dengan total
luas 412,9 ha atau 30,56%. Tingkat kerentanan rendah terhadap potensi longsor
terdapat pada Sistem Lahan KTM-H-L, KTM-P-D, dan KTM-P-L dengan total luas
286,56 ha atau 21,21%.
Kata kunci: kerentanan, longsor, sistem informasi geografi.
LEVEL OF SOIL VULNERABILITY TO LANDSLIDE POTENTIAL
IN THE PESANGKALAN VILLAGE PAGEDONGAN DISTRICT
BANJARNEGARA REGENCY
By: Teguh Adriyanto
Supervised by: Djoko Mulyanto and Susila Herlambang
ABSTRACT
Pesangkalan Village is one of the villages in Pagedongan District, Banjarnegara
Regency which has a bumpy hill topography with steep slopes, and high rainfall
that can trigger soil mass movements. The purpose of this research is to determine
and map the classification and distribution of soil susceptibility levels to potential
landslides in Pesangkalan Village. This research was conducted through field
surveys and supported by soil analysis in the laboratory and GIS mapping with
ArcMap. The analysis process uses a Geographic Information System (GIS) by
analyzing the parameters of the vulnerability of soil mass movement in Pesangkalan
Village. The method used is scoring or weighting. The parameters used to
determine the level of vulnerability are rock type, topsoil texture, subsoil texture,
slope, permeability, soil thickness, land use, and rainfall. Each parameter has a
score multiplied by the weight of each parameter, the results of the multiplication
of scores and weights are added up based on their geographical location.
Determining the classification of the level of soil vulnerability to landslides
potential there are 5 classes. The results of the study show that areas with a high
level of vulnerability to potential landslides in Pesangkalan Village are in the KTM�H-A, KTM-H-C, Ktog-H-A, TMP-H-C, and TMW-H-C Land Systems with a total
area of 651.49 ha or 48.22 %. The moderate level of vulnerability to potential
landslides is found in the Ktog-H-L, Ktog-P-L, TMP-H-A, TMP-H-L, and TMW-H�A Land Systems with a total area of 412.9 ha or 30.56%. The low level of
vulnerability to potential landslides is found in the KTM-H-L, KTM-P-D, and KTM�P-L Land Systems with a total area of 286.56 ha or 21.21%.
Keywords: vulnerability, landslide, geographic information systems.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | vulnerability, landslide, geographic information systems. |
| Subjects: | S Agriculture > S Agriculture (General) |
| Divisions: | Faculty of Medicine, Health and Life Sciences > School of Biological Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 26 Dec 2022 02:14 |
| Last Modified: | 26 Dec 2022 02:14 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/32040 |
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