Analisis Intensitas Erosi Melalui Pemetaan Erosi Dengan Metode Revised Universal Soil Loss Equation (RUSLE) (Studi Kasus : DAS Kambeng, Kabupaten Pasuruan, Jawa Timur)

Vindianingrum, Adifa (2025) Analisis Intensitas Erosi Melalui Pemetaan Erosi Dengan Metode Revised Universal Soil Loss Equation (RUSLE) (Studi Kasus : DAS Kambeng, Kabupaten Pasuruan, Jawa Timur). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Erosi merupakan salah satu indikator penting mengenai permasalahan degradasi lahan dan dampak yang ditimbulkan terhadap lingkungan. DAS Kambeng yang merupakan bagian dari sub DAS Porong dan sub DAS Brantas termasuk dalam salah satu DAS yang dikategorikan butuh pemulihan menurut informasi yang diperoleh melalui ForDAS Kabupaten Pasuruan. DAS Kambeng sering mengalami penggerusan tanah akibat aliran air hujan, yang memicu proses erosi dan meningkatkkan resiko banjir di wilayah di wilayah dengan topografi yang lebih rendah akibat terbawanya partikel tanah dari daerah yang lebih tinggi oleh aliran permukaan. Penelitian ini menggunakan metode Revised Universal Soil Loss Equation (RUSLE) yang terintegrasi dengan Sistem Informasi Geografis (SIG) untuk menghitung estimasi kehilangan tanah berdasarkan beberapa parameter, yaitu data curah hujan, jenis tanah, kelerengan, tutupan lahan. Penelitian ini memiliki tujuan untuk mengetahui gambaran pemetaan distribusi kejadian erosi serta area yang paling rentan terhadap degradasi, menghitung estimasi kehilangan tanah, dan estimasi sedimentasi akibat erosi di DAS Kambeng. Hasil pemetaan menunjukkan bahwa area yang menaglami degradasi paling tinggi di DAS Kambeng berada di Kecamatan Prigen, dengan estimasi intensitas erosi sebesar 21.228,994 ton/ha/tahun. Sementara itu, estimasi erosi keseluruhan yang terjadi di DAS Kambeng yaitu sebesar 58.165,85 ton/ha/tahun dengan volume estimasi sedimentasi yang terjadi yaitu sebesar 1.207,53 ton/tahun yang merupakan 2,08% dari potensi erosi yang terjadi.
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Erosion is one of the important indicators of land degradation and its impact on the environment. The Kambeng watershed, which is part of the Porong sub-watershed and Brantas sub-watershed, is one of the watersheds categorized as needing recovery according to information obtained through ForDAS Pasuruan Regency. Kambeng watershed often experiences soil erosion due to rainwater flow, which triggers erosion processes and increases the risk of flooding in areas with lower topography due to the carrying of soil particles from higher areas by surface flow. This research uses the Revised Universal Soil Loss Equation (RUSLE) method integrated with Geographic Information Systems (GIS) to calculate soil loss estimates based on several parameters, namely rainfall data, soil type, slope, land cover. This study aims to determine the distribution mapping of erosion events and areas that are most vulnerable to degradation, calculate the estimated soil loss, and estimate sedimentation due to erosion in the Kambeng watershed. The mapping results show that the most degraded area in the Kambeng watershed is in Prigen Subdistrict, with an estimated erosion intensity of 21,228.994 tons/ha/year. Meanwhile, the overall estimated erosion that occurs in the Kambeng watershed is 58,165.855 tons/ha/year with an estimated sedimentation volume of 1,207.529 tons/year which is 2.08% of the potential erosion that occurs.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	DAS, Erosi, Pemetaan, RUSLE.
Subjects:	G Geography. Anthropology. Recreation > G Geography (General) > G70.212 ArcGIS. Geographic information systems. G Geography. Anthropology. Recreation > G Geography (General) > G70.217 Geospatial data G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography > GA105.3 Cartography. G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography > GA139 Digital Elevation Model (computer program) G Geography. Anthropology. Recreation > GE Environmental Sciences > GE195.5 Green movement
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User:	Adifa Vindianingrum
Date Deposited:	16 Jul 2025 06:05
Last Modified:	16 Jul 2025 06:05
URI:	http://repository.its.ac.id/id/eprint/119862

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