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Journal : Jurnal Geografi

Penilaian Erosi Berdasarkan Metode USLE dan Arahan Konservasi Pada DAS Air Dingin Bagian Hulu Kota Padang-Sumatera Barat Aprizon Putra; Triyatno Triyatno; Azhari Syarief; Dedi Hermon
JURNAL GEOGRAFI Vol 10, No 1 (2018): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v10i1.7176

Abstract

Abstrak Penelitian ini dilakukan untuk mengidentifikasi penggunaan lahan pada DAS Air Dingin bagian hulu di Kota Padang berdasarkan tingkat bahaya erosi dan arahan konservasi. Metode penelitian yang digunakan untuk mengetahui tingkat bahaya erosi ditentukan berdasarkan rumus Universal Soil Loss Equation (USLE) dan arahan konservasi mengacu pada modifikasi dari Kumajas (1992). Hasil penelitian menunjukan bahaya erosi sangat ringan yaitu 5.93 ton/ha/tahun dengan luas 58.61 ha, erosi ringan yaitu 43.9 ton/ha/tahun dengan luas 24.49 ha, erosi sedang yaitu 181.64 ton/ha/tahun dengan luas 3.91 ha, dan erosi berat yaitu 74.91 ton/ha/tahun dengan luas 4.33 ha. Sedangkan arahan konservasi pada erosi sangat ringan dibiarkan dalam keadaan alami, erosi ringan dilakukan dengan pembuatan teras bangku, erosi sedang dilakukan dengan rotasi tanaman dengan teras berdasarkan lebar (pemanfaatan mulsa), dan erosi berat dilakukan dengan teras bangku (penggarapan dengan tenaga manusia).Kata Kunci: Erosi, Konservasi, DAS, Air Dingin bagian hulu, Kota Padang Abstract This research was conducted to identify the land use on the upstream part of Air Dingin Watershed in Koto Tangah Sub-district, Padang City based on the level of erosion and conservation directives. The method used to determine the level of erosion is determined based on Universal Soil Loss Equation (USLE) formula and conservation directives refers to the modification by Kumajas(1992). The results showed very mild erosion is 5.93 tons/ha/year with an area of 58.61 ha, mild erosion is 43.9 tons/ha/year with an area of 24.49 ha, moderate erosion is 181.64 tons/ha/year with an area of 3.91 ha, and heavy erosion is 74.91 tons/ha/year with broad 4.33 ha. While conservation directives on very mild erosion were left in a natural state, mild erosion is performed with a bench terracing, moderate erosion is being done by crop rotation with a terrace based on a width (mulsa utilization), and heavy erosion is done with a bench porch (cultivating with human labour).Keywords: Erosion, Conservation, Watershed, Upstream Part of Air Dingin, Padang City
Co-Authors - Ilham A. Riza Farhan Abdul Hadi Putra Abdul Razak Abellia Fanny Aldeta Aditya Herfianda Aditya Saputra Adli Attamimi Agustian, CH. andi, febriandi Apriadi Agussalim Arlius Arlius, Arlius Arman A Azhari Syarief Baqi, Ahmad Iqbal Bayu Wijayanto Cipta Estri Sekarrini Damanhuri, Harfiandri Deded Chandra Dedi Hermon Dian Adhetya Arif Dwi Marsiska Driptufany Efriyeldi, Efriyeldi Eni Kamal Eni Kamal Eri Barlian Erianjoni Erianjoni Fadhilah, Lamis Tharra Fajrin Fajrin Fredinan Yulianda Fuji Astuti Febria Gunardi Kusumah Gunardi Kusumah Gunardi Kusumah H L Salim Hadi Sofyan Handayuni, Linda Heldi Heldi, Heldi Helfia Edial Hendry Frananda Henny Yulius Herdiana Mutmainah Herdiana Mutmainah, Herdiana Husrin, Semeidi Ilham . Ilham Ilham Ilham Ilham Ilham, Ilham Indang Dewata irwan meilano Iswandi U Iswandi Umar Jaya Kelvin Koko Ondara Kusumah, Gunardi Lailatur Rahmi Lia Hasmita Lionar, Uun M Ramdhan Memo Memito Mira Hasti Hasmira Muhammad Hidayat Mulya Gusman Mustapha, Muzzneena Ahmad N Nofrion Nia Naelul Hasanah Nita Yuanita Nova, Sari Novio, Rery Novitri, Awinda Nurfadhilla Nurfadhilla Nurul Rahmadilla Edgar Oktorie, Olivia Olivia Oktorie Osronita Osronita Pratama, Roka Putri, Sri Kandi Radha Karina Putri Rahmadi Prasetijo Ramadhan, Riski Rammadani Yusran Randu Prayoga Putra Ratna Wilis Roka Pratama Rusdi Rusdi Semeidi Husrin Semeidi Husrin Semeidi Husrin Semeidi Husrin Semeidi Husrin Semeidi Husrin Semeidi Husrin Semeidi Husrin Semeidi Husrin Semeidi Husrin Serly Mutia Sari Shintia Franzela Sri Mariya Suparno . T A Tanto Tanto, Try Al Tanto, Try Al Tasa Anike Triyatno Triyatno Triyatno Triyatno Triyatno, . Try Al Tanto Try Al Tanto Try Al Tanto Try Al Tanto Try Al Tanto Try Al Tanto Try Al Tanto, Try Try Al Tanto, Try Al Ulung Jantama Wisha Ulung Jantama Wisha Ulung Jantama Wisha Ulung Jantama Wisha Widodo S Pranowo Widodo S Pranowo Widodo S. Pranowo Widya Prarikeslan Wilson Novarino Wisha, Ulung Jantama Yulius Yulius Yunhendri Danhas Yurni Suasti