KAJIAN TINGKAT BAHAYA EROSI DI SUB DAS BEKALA

Andika, Fachri Rawi (2015) KAJIAN TINGKAT BAHAYA EROSI DI SUB DAS BEKALA. Undergraduate thesis, UNIMED.

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Abstract

Penelitian ini dilakukan pada tahun 2015 di Sub DAS Bekala. Populasi dalam penelitian ini adalah seluruh satuan lahan yang ada di Sub DAS Bekala dengan luas 4.425,806 Ha dengan sampel 13 satuan lahan yang diambil dengan tehnik Stratified Purposive Sampling. Tehnik pengumpulan data yang digunakan adalah tehnik observasi, tehnik pengukuran dan studi dokumenter yang kemudian dianalisis dengan analisis deskriptif kualitatif. Hasil penelitian menunjukkan bahwa : (1) Bahaya erosi di Sub DAS Bekala berkisar antara 0,24 ton/Ha/tahun sampai 40,14 ton/Ha/tahun dengan rata-rata bahaya erosi 8,76 ton/Ha/tahun dan berada pada kelas bahaya erosi I sampai II. Kelas bahaya erosi terluas persebarannya berada pada kelas bahaya erosi I pada satuan lahan AIP, AIR, AIUc, AIUs, AIIR, LIUc, LIUs, LIP, LIIUc, LIIUs meliputi 3.685,22 Ha dari luas Sub DAS Bekala. Bahaya erosi terbesar terdapat pada satuan lahan AIIIUc sebesar 40,14 ton/Ha/tahun, meliputi 11,05 Ha dari luas Sub DAS Bekala dan berada di bagian hulu Sub DAS Bekala. (2) Tingkat bahaya erosi yang terjadi di Sub DAS Bekala meliputi tingkat bahaya erosi ringan, sedang dan berat. Tingkat bahaya erosi yang mendominasi di Sub DAS Bekala yaitu tingkat bahaya erosi ringan yang terdapat pada satuan lahan LIUc, LIUs, LIP, LIIUc, LIIUs di Kecamatan Pancur Batu dan Medan Tuntungan meliputi 2.000,32 Ha dari luas Sub DAS Bekala 4.425,806 Ha. Tingkat bahaya erosi terberat berada pada satuan lahan AIIUc, AIIUs, AIIIUc, meliputi 338,29 Ha dari luas Sub DAS Bekala dan berada di bagian hulu Sub DAS Bekala.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
UNSPECIFIEDSimanungkalit, Nahor M196205271987032002
Call Number: SK-2016 GEO 002
Keywords: DAS;Bekala;Tehnik Pengukuran
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions: Fakultas Ilmu Sosial > Pendidikan Geografi
Depositing User: Mr Maknun
Date Deposited: 24 May 2016 11:53
URI: http://digilib.unimed.ac.id/id/eprint/5433

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