Hartawan, M.Bobby and Dr. Ery Suhartanto, ST., MT. and Sri Wahyuni, ST., MT., Ph.D. (2020) Analisa erosi sedimentasi berbasis sistem informasi geografis (SIG) pada bagian hulu DAS WAY Rarem Kabupaten Lampung Utara. Sarjana thesis, Universitas Brawijaya.
Abstract
Penelitian ini bertujuan untuk mengetahui besarnya laju erosi pada Sub DAS Way Rarem dan mengetahui besar sedimen yang masuk ke waduk. Semua proses pengolahan data yang diperoleh untuk menentukan batasan Sub DAS, besarnya laju erosi, tingkat bahaya erosi, tingkat kekritisan lahan, tingkat kemampuan lahan, dan arahan perubahan tata guna lahan tersebut akan dilakukan dengan bantuan SIG. Hasil dari penelitian menunjukkan bahwa, 1) hasil kondisi eksisting rata – rata laju erosi 1560745.504 ton/tahun, 2) didapatkan 5 kriteria dengan beberapa tingkat kekritisan lahan, dan 3) fungsi kawasan pada DAS Way Rarem merupakan kawasan lindung, kawasan penyangga dan kawasan budidaya, usaha konservasi yang dilakukan dengan membangun bangunan pengendali sedimen (checkdam). 4) sedimen yang masuk ke waduk dan umur layanan waduk maka direncakan separuh dari jumlah sedimen bisa dikendalikan di daerah hulu waduk. Berbagai tipe perhitungan bangunan checkdam sudah diperhitungkan menurut SNI-2851.
English Abstract
This study aims to determine the amount of erosion rate in the Way Rarem sub-watershed and determine the sediment amount that enters the reservoir. All data processing processes obtained to determine the boundaries of the sub-watershed, the magnitude of the erosion rate, the level of erosion hazard, the level of criticality of the land, the level of land capability, and the direction of land-use change will be carried out with the help of GIS. The research show that, 1) the existing average erosion rate of 1560745.504 tonnes/year,(2)based on the simulation results of the scenario erosion rate using the Erosion Hazard Index (IBE) equation with a total area of 298.63 ha of watershed area, obtained five criteria with several levels of land criticality, 3) the area function in the Way Rarem watershed is a protected area, an area buffer and cultivation areas, conservation efforts carried out by constructing sediment control structure (check dam).4)sediment that enters the reservoir and the service life of the reservoir, it is planned that half the amount of sediment can be controlled in the upstream area of the reservoir. Various types of checkdam building have been taken according to SNI-2851
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0521070174 |
| Uncontrolled Keywords: | Kata Kunci: Bangunan Pengendali Sedimen, Erosi, Sedimen, Sistem Informasi Geografis |
| Subjects: | 600 Technology (Applied sciences) > 627 Hydraulic engineering > 627.5 Reclamations, Irrigation, related topics > 627.52 Irrigation |
| Divisions: | Fakultas Teknik > Teknik Pengairan |
| Depositing User: | yulia Chasanah |
| Date Deposited: | 06 Jan 2022 02:28 |
| Last Modified: | 12 Apr 2023 02:18 |
| URI: | http://repository.ub.ac.id/id/eprint/186973 |
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