ANALISIS POTENSI EROSI PADA DAS BEKASI

Mahdia Raisa Hanifa Arifin, - (2024) ANALISIS POTENSI EROSI PADA DAS BEKASI. S1 thesis, Universitas Pendidikan Indonesia.

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Official URL: https://repository.upi.edu

Abstract

Erosi daerah aliran sungai (DAS) merupakan proses pengikisan tanah yang terjadi akibat pengaruh air, angin dan aktivitas manusia dan memiliki dampak yang signifikan terhadap kualitas lingkungan. Dari pemasalahan tersebut diambil studi kasus DAS Bekasi untuk mengetahui hubungan faktor-faktor erosi dengan erosi. Model RUSLE (Revised Universal Soil Loss Equation) merupakan salah satu model yang digunakan dalam memprediksi erosi dengan mengkalikan indeks faktor erosi berupa erosivitas hujan, erodibilitas tanah, kemiringan lereng, tutupan lahan dan konsevasi lahan. SDR (Sediment Delevery Rasio) dibutuhkan untuk mengetahui besar sediemen potensial yang terjadi. Teknik pengumpulan data dilakukan dengan cara mengumpulkan data sekunder pada instansi terkait yang kemudian diolah menggunakan softwere ArcGIS. Hasil analisis menyatakan bahwa faktor erosivitas hujan sangat berpengaruh akan terjadinya erosi dan faktor lainya dianggap konstan atau tetap tiap tahunnya terhadap erosi. Berdasarkan perhitungan didapatkan erosi aktual pada DAS Bekasi 8,15 juta ton/tahun dengan tingkat bahaya erosi (TBE) sangat rendah atau tingkat I dan Sedimentasi potensial dikisaran sebesar 1,3 juta ton/tahun dengan besaran SDR 0,087 atau 8,77%. Erosion of the watershed area (DAS) is a process of soil erosion caused by the influence of water, wind, and human activities, which has a significant impact on environmental quality. A case study of the Bekasi watershed is used to understand the relationship between erosion factors and erosion. The RUSLE (Revised Universal Soil Loss Equation) model is one of the models used to predict erosion by multiplying indices of erosion factors such as rainfall erosivity, soil erodibility, slope gradient, land cover, and land conservation. SDR (Sediment Delivery Ratio) is needed to determine the magnitude of potential sedimentation. Data collection was carried out by gathering secondary data from relevant agencies, which was then processed using ArcGIS software. The analysis results indicate that rainfall erosivity is a major factor influencing erosion, while other factors are considered constant or unchanged each year regarding erosion. Based on calculations, the actual erosion in the Bekasi watershed is 8,15 million tons/year with an erosion hazard level (TBE) classified as very low or level I, and the potential sedimentation is approximately 1,3 million tons/year with an SDR of 0.087 or 8.77%.

Item Type: Thesis (S1)
Additional Information: ID SINTA Dosen Pembimbing: RAKHMAT YUSUF: 6003508
Uncontrolled Keywords: DAS, Faktor Erosi, RUSLE, Sedimentasi Watershed, Erosion Factors, RUSLE, Sedimentation
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Sipil > Program Studi Teknik Sipil
Depositing User: Mahdia Raisa Hanifa Arifin
Date Deposited: 07 Nov 2024 09:41
Last Modified: 07 Nov 2024 09:41
URI: http://repository.upi.edu/id/eprint/128081

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