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All Journal Majalah Geografi Indonesia Caraka Tani: Journal of Sustainable Agriculture
Eko Haryono
Departemen Geografi Lingkungan, Fakultas Geografi, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Sidik Cepat Potensi Karst Rocky Desertification (KRD) Menggunakan Citra Landsat 8 OLI: Studi di Kawasan Karst Gunungsewu Bagian Barat Pendi Tri Sutrisno; Sigit Heru Murti; Eko Haryono
Majalah Geografi Indonesia Vol 34, No 2 (2020): Majalah Geografi Indonesia
Publisher : Fakultas Geografi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mgi.43013

Abstract

 Abstrak. Proses identifikasi kondisi lingkungan dapat dilakukan melalui adanya sidik cepat pemetaan Karst Rocky Desertification (KRD), termasuk di kawasan karst Gunungsewu bagian barat. Tujuan dari kajian ini adalah untuk mengetahui secara cepat potensi intensitas proses KRD yang terjadi di wilayah kajian, menggunakan metode analisis data citra penginderaan jauh multispektral. Metode yang digunakan adalah pengolahan citra secara digital menjadi citra indeks NDVI dan BI ditunjang dengan menggunakan analisis Digital Elevation Model (DEM) untuk menghasilkan data kemiringan lereng. Kriteria kelas potensi terjadinya KRD yang dihasilkan yaitu non KRD, potensi KRD rendah, potensi KRD sedang dan potensi KRD tinggi dengan luas total wilayah kajian 56.686,17 Ha. Wilayah kajian masih didominasi kelas non KRD dengan luas 32.140,56 Ha, sedangkan potensi KRD rendah seluas 24.447,72 Ha, kelas potensi KRD sedang seluas 96,53 Ha dan potensi KRD tinggi seluas 1,36 Ha. Abstract. Identification of environmental conditions can be done through the rapid mapping of karst rocky desertification (KRD) process. The purpose of this study is to know rapidly the potential of KRD processes, using Landsat 8 OLI multispectral image that covering the western part of Gunungsewu karst area. The method used is digital image processing of NDVI and BI index supported by using Digital Elevation Model (DEM) analysis to produce slope data. Criteria of KRD potential in this study are non KRD, low KRD potential, medium KRD potential and high KRD potential for total study area of 56.686,17 Ha. The study area dominated by non-KRD class with an area of 32.140,56 Ha, while the low KRD potential is 24.447,72 Ha, the medium KRD potential is 96,53 Ha and high KRD potential is 1,36 Ha.
ALIRAN BAHAN ORGANIK PADA SAWAH PADI ORGANIK DI DUSUN JAYAN DESA KEBONAGUNG KEC. IMOGIRI KAB. BANTUL D.I. YOGYAKARTA Arif Anshori; Bambang Hendro Sunarminto; Eko Haryono
Caraka Tani: Journal of Sustainable Agriculture Vol 31, No 1 (2016): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.138 KB) | DOI: 10.20961/carakatani.v31i1.11942

Abstract

Organic farming uses natural resources to improve the health and productivity of soil and plants. Nutrients are lost or transported through crops, erosion, leaching and volatilization must be replaced naturally and through the return of organic matter. This research aims to study the conditions of organic rice fields, specifically in terms of organic matter flow, in Jayan Kebonagung Imogiri Bantul. The organic rice field data obtained from interviews and archive farmers. The results indicate that the organic rice field in Jayan under a transition from conventional to organic rice field. Dose of organic fertilizer 10 tons/ha were given during the transition period. Organic fertilizer 5-10 tons/ha have been giving during the organic rice fields. Returns organic matter to agricultural land through land-crop-land, land-plant-livestock-land and land-crop-livestock-biogas-land. Manure, weeds and paddy field plants, crop waste, waste from agricultural products processing and non-agricultural organic wastes involved in the flow of organic matter. Farmers monitor the health and productivity of soil and plants as the basis in the management of organic rice field.
Co-Authors Arif Anshori Bambang Hendro Sunarminto Pendi Tri Sutrisno Sigit Heru Murti