PENGENDALIAN DAERAH RAWAN LONGSOR BERDASARKAN KESESUAIAN LAHAN KAWASAN PERMUKIMAN DI PADUKUHAN GEDANG, KALURAHAN SAMBIREJO, KAPANEWON PRAMBANAN, KABUPATEN SLEMAN, DAERAH ISTIMEWA YOGYAKARTA

Muniroh, Salma Rosikhatul (2024) PENGENDALIAN DAERAH RAWAN LONGSOR BERDASARKAN KESESUAIAN LAHAN KAWASAN PERMUKIMAN DI PADUKUHAN GEDANG, KALURAHAN SAMBIREJO, KAPANEWON PRAMBANAN, KABUPATEN SLEMAN, DAERAH ISTIMEWA YOGYAKARTA. Other thesis, UPN Veteran Yogyajarta.

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Abstract

x
PENGENDALIAN DAERAH RAWAN LONGSOR
BERDASARKAN KESESUAIAN LAHAN KAWASAN PERMUKIMAN
DI PADUKUHAN GEDANG, KALURAHAN SAMBIREJO,
KAPANEWON PRAMBANAN, KABUPATEN SLEMAN,
DAERAH ISTIMEWA YOGYAKARTA
Oleh:
Salma Rosikhatul Muniroh
114180071
INTISARI
Penelitian ini didasarkan pada isu lingkungan daerah rawan bencana longsor di
Kapanewon Prambanan dan informasi dalam RTRW Kabupaten Sleman 2011-2031
yang berdampak terhadap pengembangan kawasan permukiman di daerah tersebut,
oleh karena itu perlu dilakukan analisis kemampuan lahan di Padukuhan Gedang dan
sekitarnya. Tujuan dari penelitian ini untuk menganalisis kemampuan lahan kawasan
permukiman berdasarkan Permen Pekerjaan Umum Nomor 20 tahun 2007,
menganalisis kesesuaian lahan berupa rasio tutupan lahan kawasan permukiman, dan
menentukan rekomendasi kesesuaian lahan kawasan permukiman daerah rawan
longsor di Padukuhan Gedang, Sambirejo.
Metode yang digunakan adalah pengharkatan dan pembobotan untuk analisis
spasial, serta analisis deskriptif kualitatif dengan parameter yang digunakan sesuai
Peraturan Menteri Pekerjaan Umum No 20 Tahun 2007. Analisis kemampuan lahan
meliputi Satuan Kemampuan Lahan (SKL) morfologi, kemudahan dikerjakan,
kestabilan lereng, kestabilan pondasi, ketersediaan air, drainase, erosi, pembuangan
limbah, dan bencana alam. Analisis kesesuaian lahan berupa rasio tutupan lahan
berupa bangunan permukiman didapatkan dari perbandingan luas lahan terbangun
suatu kelas dengan luas kelas kemampuan lahan terkait. Rekomendasi kesesuaian
lahan mempertimbangkan hasil kemampuan dan kesesuaian lahan daerah penelitian.
Hasil penelitian menunjukan daerah penelitian memiliki kelas kemampuan
lahan yaitu kelas kemampuan lahan B pengembangan rendah, dan C sedang. Analisis
kemampuan lahan tersebut dipertegas dengan hasil perhitungan nilai Faktor Keamanan
lereng dan erosi aktual di daerah penelitian. Nilai FK yang didapatkan yaitu sebesar
0,691 yang termasuk kategori tidak stabil pada lereng satu di bagian selatan, FK 0,695
pada lereng tiga di bagian barat, dan 1,835 yang termasuk kategori stabil pada lereng
dua di bagian utara. Erosi aktual yang telah diukur mendapatkan hasil sebesar 9.862,12
ton/ha, 4.966,13 ton/ha, 8.646,41 ton/ha, 2.306,25 ton/ha dan 2.164 ton/ha pada SKL
terhadap erosi sedang. Persentase maksimal tutupan lahan bangunan pada kelas B yaitu
10%, dan 20% pada kelas C. Hasil kesesuaian lahan berupa rasio tutupan lahan
permukiman pada kemampuan lahan kelas B, daerah yang dapat dilakukan
pengembangan seluas 7,06 Ha (4,6%) dari luas kelas B 153,5 Ha, dan pada kelas C
seluas 3,30 Ha (63%) dari luas kelas C 52,5 Ha, hasil tersebut tidak melampaui batasan
maksimal dan termasuk layak untuk dikembangkan pada kelas C. Pengembangan di
daerah tersebut boleh dilakukan dengan bersyarat karena faktor pembatas yang berupa
rawan bencana longsor. Arahan pengelolaan pada daerah yang berpotensi longsor
dapat berupa pembuatan penahan lereng, perubahan geometri lereng, melakukan
penampungan air hujan, pembuatan saluran air, dan penanaman vegetasi penutup
lahan yang beraturan.
xi
CONTROL OF LANDSLIDE PRONE AREAS ACCORDING TO LAND
SUITABILITY IN SETTLEMENT AREAS AT GEDANG AREA, SAMBIREJO
VILLAGE, PRAMBANAN SUBDISTRICT, REGENCY OF SLEMAN,
SPECIAL REGION OF YOGYAKARTA
By:
Salma Rosikhatul Muniroh
114180071
ABSTRACT
The study was based on environmental issues in landslide prone areas in
Kapanewon Prambanan and information by RTRW of Sleman Regency 2011-2031
which has an impact for the regional development of settlement areas in the future.
Therefore it needs an analysis of the land capability in Padukuhan Gedang, Kalurahan
Sambirejo, Prambanan, DIY. The purpose of this study was to discover the potential
of settlement areas according to Ministry of Public Works No. 20 2007, to analyze
land suitability in the form of land cover ratio for settlement areas, and determine
recommendations for land suitability for settlement areas prone to landslides in
Padukuhan Gedang, Sambirejo.
The methods used were scoring and descriptive-qualitative analysis within the
parameters used according to Ministry of Public Works No. 20 2007. The land-
capability analysis covers the units of morphological land capability, land level of
ease to work, slope stability, foundation stability, the availability of water, drainage,
erosion, waste disposal, and natural disasters. Analysis of land suitability in the form
of settlement land cover ratio obtained from the comparison of the built-up land area
of a class with the land area of the corresponding land capability class. Land
suitability recommendations consider the results of the land capability dan suitability
in the research area.
Research shows that the study area had a classes of land capability with
classification including class B land capability or low development capability, and
class C or rather moderate development capability. The analysis of land capability is
enhanced by data of the calculation results of the slope safety factor and actual erosion
in research area. The score result of safety factors was 0.691 which was included in
the unstable category on slope 1 in the south area, SF was 0.695 on slope 3 in the west
area, and 1.835 which was included in the stable category on slope 2 in the north area.
The result of the actual erosion that had been measured is 9,862.12 tons/ha, 4,966.13
tons/ha, 8,646.41 tons/ha, 2,306.25 tons/ha and 2,164 tons/ha in units of land
capability against moderate erosion. The maximum percentage of building land cover
in class B is 10%, and 20% in class C. The results of land suitability in the form of
settlement land cover ratio on land capability class B area that can be developed are
7.06 Ha (4.6%) of the total class B area of 153.5 Ha, on class C are 3.30 Ha (6.3%)
of the total class C area of 52.5 Ha, these results are not exceed the maximum limit
and still considered feasible for develop. The development may be carried out
conditionally due to the limiting factor of the area being prone to landslides.
Management directions for potential landslide areas can be in the form of slope
retaining, changes the slope geometry, rainwater harvesting, water channeling, and
planting of regular cover crops.

Item Type: Thesis (Other)
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Eko Yuli
Date Deposited: 16 Jan 2024 04:38
Last Modified: 16 Jan 2024 04:38
URI: http://eprints.upnyk.ac.id/id/eprint/38684

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