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All Journal Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Indonesian Journal of Geography Jurnal Pembangunan Wilayah dan Kota Jurnal Hortikultura JTSL (Jurnal Tanah dan Sumberdaya Lahan) Journal of Degraded and Mining Lands Management Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Tataloka JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) JURNAL ILMIAH GEOMATIKA MAJALAH ILMIAH GLOBE Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Geografi, Edukasi dan Lingkungan JEPA (Jurnal Ekonomi Pertanian dan Agribisnis) Journal of Regional and Rural Development Planning Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika Region : Jurnal Pembangunan Wilayah dan Perencanaan Partisipatif Geodika: Jurnal Kajian Ilmu dan Pendidikan Geografi Indonesian Journal of Electrical Engineering and Computer Science Makara Journal of Technology Eduvest - Journal of Universal Studies

Boedi Tjahjono

Departemen Ilmu Tanah Dan Sumberdaya Lahan, Fakultas Pertanian, Institut Pertanian Bogor, Kampus IPB Dramaga Bogor 16680 Indonesia

Author-ID : 242895

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Social Sciences

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ANALISIS KESESUAIAN LAHAN KOMODITAS UNGGULAN DAN ARAHAN PENGEMBANGANNYA DI WILAYAHKABUPATEN CIANJUR Wistha Nowar; Dwi Putro Tejo Baskoro; Boedi Tjahjono
TATALOKA Vol 17, No 2 (2015): Volume 17 Number 2, May 2015
Publisher : Diponegoro University

Regional development can be carried out with an emphasis on the basic sectors and leading commodities. The purpose of this study is twofold. The first is to determine the basic sectors, sub-sectors, and leading commodities, and the second is to analyze the suitability and allocation directives of land for leading commodities. The data used include gross regional domestic product (GDP) of West Java and the harvested area in 2011-2013.The other data are land suitability requirement, map soil types, rainfall, temperature, grade slope, erosion, map of soil units, land use, spatial plans, and administrative maps. Location Quotient (LQ) method is used to determine the basic sectors and sub-sectors. Meanwhile, the LQ and Differential Shift and Share are used to determine the leading commodities. The land suitability of leading commodities is spatially analyzed using Geographical Information System (GIS). The results have shown that the agriculture is the basic sector and food crop agriculture is and the basic sub-sector. The leading commodities are soybean, peanut, and rice. The land suitability classes are S2 and S3. The available allocation areas are 27.984 Hectares for wet-field paddy, 17.984 Hectares for peanuts, and 38.835 Hectares for soybean.

ARAHAN DAN STRATEGI PENGEMBANGAN AREAL BEKAS TAMBANG TIMAH SEBAGAI KAWASAN PARIWISATA DI KABUPATEN BANGKA Lia Meyana; Untung Sudadi; Boedi Tjahjono
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 5 No. 1 (2015): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.5.1.51

Bangka Island is known by the people of Indonesia and the world as the island's largest tin producer in Indonesia and has potential natural attractions such as beaches that surround the island of Bangka.This study is motivated by the former tin mining land that is not used optimally. One of waysis used to utilize former tin mine area is to develop it as a tourism area in Bangka Regency. The aim of this study is to identify and map the former tin mining area, to find out the priority areas of tourism development, to find out the types of tourism that can be developed, and to formulate strategies in the development of the former tin mining area as a tourism area. The analytical method used is the analysis of Geographic Information Systems (GIS), schallogram analysis, AHP and A'WOT (combination of AHP and SWOT). The result showed that the area of the former tin mines in Bangka spread six sub-districts. The priority areas for the development of the former tin mining area as a tourism area directed at Riau, Parit Padang, Kuto Panji and Kenanga Village. According to the perceptions of stakeholders, the types of tourism that can be developed on a former tin mining areas prioritized in the natural attractions of water recreation, culture tourism in the form of a tourist village, and artificial tourism in the form of edutourism. The main priority strategies that can be done is to develop mining tourism as a brand image. Keywords: former tin mining, mining tourism, development strategy

PEMODELAN SPASIAL BAHAYA LONGSOR DI DAS CILIWUNG HULU, KABUPATEN BOGOR Muhamad Rizal Gojali; Boedi Tjahjono; Ernan Rustiadi
KOMPUTASI Vol 17, No 1 (2020): Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika
Publisher : Ilmu Komputer, FMIPA, Universitas Pakuan

Landslide is a natural phenomenon that occurs because nature is looking for a balance due to disturbance affecting the land at the point of the landslide. Bogor Regency is categorized into a medium to high level ground vulnerable zone by BNPB, in this case the Cilwung Hulu watershed is an area that often experiences landslides. This study aims to develop a spatial model of landslides in the Ciliwung Hulu watershed using a PCA-based assessment method of the factors causing landslides. The results showed that there are seven parameters that can be used for spatial modeling of landslides, namely landform, land use, slope, rainfall, straightness, soil type, and lithology. Based on the results of the analysis it was found that the weight of each parameter is 0.347; 0.223; 0,200; 0,100; 0.071; 0.049; and 0.010. In this case landform has the highest weight as a determinant of landslide hazards. The area of landslide hazard class (low, medium, and high) obtained from the results of modeling are 4,651.53 ha (31%), 6,637.72 ha (43%), and 3,941.41 ha (26%) with accuracy overall of 57.8.

ANALISIS MORFOMETRI UNTUK MENENTUKAN RISIKO ALIRAN LAHAR GUNUNG GEDE DI KABUPATEN CIANJUR PROVINSI JAWA BARAT Supriyati Supriyati; Boedi Tjahjono
Jurnal Geografi, Edukasi dan Lingkungan (JGEL) Vol. 2 No. 2 (2018): Jurnal Geografi, Edukasi dan Lingkungan (JGEL)
Publisher : Pendidikan Geografi Universitas Muhammadiyah Prof. Dr. Hamka

Aset penting di sekitar Gunung Gede dan perkembangan pemukiman hingga jarak 6 km dari puncak gunung, memberikan risiko yang tinggi akan dampak bahaya aliran lahar. Pengurangan risiko dampak bencana erupsi Gunung Gede, perlu dilakukan mitigasi bencana dengan mengetahui daerah mana saja yang akan dilalui aliran lahar. Pembuatan peta bahaya aliran lahar Gunung Gede dibagi menjadi dua kawasan, yaitu daerah proksimal serta daerah medial dan distal yang jauh dari pusat letusan. Metode penilaian bahaya proksimal menggunakan variabel curah hujan, kerapatan aliran sungai (drained density), dan gradien lembah. Penilaian bahaya di daerah medial dan distal, menggunakan variabel morfometri sungai-sungai utama yang mempunyai hulu di DAS-DAS proksimal seperti daya tampung atau kapasitas maksimal lembah yang dihitung melalui volume lembah sungai. Hasil analisis menunjukkan bahwa aliran lahar medial dan distal Gunung Gede di Kecamatan Cugenang dan Kecamatan Cianjur mempunyai risiko sedang-tinggi. Rekomendasi yang dapat diberikan untuk mengurangi risiko aliran lahar melalui mitigasi non-struktural dengan penetapan peraturan, kesadaran masyarakat dan program pendidikan serta modifikasi perilaku. Rekomendasi mitigasi struktural dapat dilakukan dengan cara membangun tanggul sungai pada daerah yang berpotensi mengalami banjir lahar atau membuat sabo dam, serta meningkatkan kapasitas daya tampung lahar. Kata Kunci: Morfometri, Aliran Lahar, Risiko

Hubungan Indeks Osilasi Selatan dan Indeks Curah Hujan terhadap Kejadian Kekeringan di Kabupaten Indramayu, Jawa Barat, Indonesia BOEDI TJAHJONO; BABA BARUS; NINA WIDIANA DAROJATI
Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangunan Wilayah dan Perdesaan) Vol. 1 No. 1 (2017): Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangu
Publisher : P4W LPPM IPB

Indramayu district experiences frequent droughts that leads to many paddy fields harvest failure. Since the district is one of the national granary, this disaster needs to be addressed urgently. This study aimed to assess the level of dryness in Indramayu using Standard Precipitation Index (SPI) and its relation with the Southern Oscillation Index (SOI). The study used monthly rainfall data from 1996 to 2013 observed by 19 stations and the score of SOI that came from the Bureau of Meteorology of Australia. The method used quantitative approach using SPI and software SPI_sl_6.exe. Drought indices was measured in four different time scale which are 1, 3, and 6 month(s) (for the short term period) and the 12 months time scale (for the long term period). SPI’s assessment was classified in accordance with the classification of WMO (World Meteorological Organization) which consist of seven classes, ranging from wet extreme to dry extreme class. The results showed that the occurence of "very dry" to "dry extreme“ drought was occured mainly from February 1997 to January 1998 at most stations, while for some stations, it lasted until March 1998. The drought period was lasted from nine to ten months. In 2002 to 2003, the droughts that classified as "very dry" on a 3 and 6 months time scale lasted about five months, while the 12 months time scale was lasted about nine months. SPI value that obtained from different time scales has a strong relation with the value of SOI. The negative value of SOI tends to be followed by the negative value of SPI, and vice versa. SOI that has negative value below -7 and occured in a long period (more than three months) indicates a prolonged El Nino which occurred in 1997 and 2002/2003 when the research area was struck by "being dry" to "dry extreme" drought state.

Spatial Modeling in Landslide Susceptibility Dwi Shanty Apriliani Gunadi; I Nengah Surati Jaya; Boedi Tjahjono
Indonesian Journal of Electrical Engineering and Computer Science Vol 5, No 1: January 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v5.i1.pp139-146

Landslide Susceptibility Mapping is one of the mitigation effort to detect vulnerable areas for minimizing the risk of landslide disasters. This paper describes spatial model development for assessing landslide susceptibility by considering human and biophysical factors. The main objective of this research is to develop a spatial modeling of landslide susceptibility, particularly in several regencies of West Java Province. The data analysis include data pre-processing, regression analysis, correlation analysis, score development, and weight determination using Principal Component Analysis (PCA). The study found that the most important factors that contributed to landslide susceptibility within the research area is the Landuse/Landcover, then followed by Slope, Distance to River, Soil Type, Annual Rainfall, Population Density, Geology Age, Climate Type, and Geomorphology. The first three highest factors occupied almost 53% of the total weight. The model successfully estimated the spatial distribution and degree of landslide susceptibility into 3 classes having overall accuracy of about 68%.

Simulation on the Use of LOSAT Data for Rice Field Mapping Trisasongko, Bambang H.; Panuju, Dyah R; Tjahjono, Boedi; Barus, Baba; Wijayanto, Hari; Raimadoya, Mahmud A.; Irzaman, Irzaman
Makara Journal of Technology Vol. 14, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Simulation on the Use of LOSAT Data for Rice Field Mapping. Since the launch of LAPAN-TUBSAT satellite in 2007, Indonesia has been developing mission on earth observation missions for various applications. The next generation mission, called LAPAN-ORARI Satellite (LOSAT), is currently under development and expected to be launched in 2011. In order to facilitate the applications, a thorough assessment of the sensor should be made. This paper presents an examination of simulated LOSAT data for rice monitoring and mapping purposes coupled with QUEST statistical tree. We found that three-band simulated LOSAT data were suitable for the task with reasonably high accuracy.

Strategi Pengembangan Usahatani Padi Organik di Kabupaten Serdang Bedagai Nabila Annajmi; Boedi Tjahjono; Syaiful Anwar
Jurnal Ekonomi Pertanian dan Agribisnis Vol 6, No 4 (2022)
Publisher : Department of Agricultural Social Economics, Faculty of Agriculture, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jepa.2022.006.04.29

Sumatera Utara menjadi salah satu sentra penghasil beras organik di Indonesia. Alokasi lahan untuk usahatani padi organik di Provinsi Sumatera Utara saat ini mencapai 200 hektar yang tersebar di beberapa kabupaten dengan luas lahan masing-masing 20 hektar, salah satunya adalah Kabupaten Serdang Bedagai. Di Kabupaten Serdang Bedagai, padi organik telah dikembangkan di tiga desa diantaranya berada di Desa Tanah Merah, Desa Lubuk Bayas, dan Desa Pematang Setrak yang telah memegang sertifikat organik dari LeSOS. Penelitian ini bertujuan untuk melihat potensi pengembangan padi organik di Kabupaten Serdang Bedagai dari segi ekonomi serta merumuskan strategi yang cocok untuk mengembangkan padi organik di Kabupaten Serdang Bedagai. Analisis R/C rasio digunakan untuk mengetahui pendapatan petani dan kelayakan usahatani dan analisis AWOT untuk menyusun strategi pengembangan padi organik yang lebih tepat. Hasil R/C rasio menunjukkan nilai sebesar >1, yaitu 2,51 (atas biaya tunai) dan 2,33 (atas biaya total), yang berarti bahwa padi organik di Kabupaten Serdang Bedagai berpotensi untuk dikembangkan. Sementara itu analisis AWOT menunjukkan bahwa prioritas utama yang harus dilakukan dalam pengembangan padi organik adalah mempertahankan kualitas dan sertifikasi beras organik serta memperbaharui kemasan untuk meningkatkan daya tarik konsumen untuk membeli.

PENENTUAN PEMETAAN KADAR AIR TANAH OPTIMAL PADA LAHAN PERKEBUNAN KELAPA SAWIT (STUDI KASUS: KEBUN CIKASUNGKA, PT PERKEBUNAN NUSANTARA VIII, CIMULANG, BOGOR) Siti Faizah Zauhairah; Baba Barus; Enni Dwi Wahjunie; Boedi Tjahjono; Alfin Murtadho
Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Soil water content is one of the dynamics of water conditions that can be a limiting factor in achieving optimal oil palm productivity. The extensive oil palm plantations make it difficult to acquire soil moisture content data. Soil water content conditions can be estimated by remote sensing technology through the vegetation and drought index, and also can be mapped using an interpolation approach. This study aimed to map the optimal soil water content in oil palm plantations based on Normalized Difference Vegetation Index (NDVI), Normalized Multi-band Drought Index (NMDI), and Interpolation. The results showed that the highest soil moisture was found on 0-3% slope gradient and the lowest on 8-15% slope gradient. Vegetation density based on NDVI analysis result was quite high, while the level of dryness based on NMDI analysis result was quite humid. Mapping of soil water content based on NDVI and NMDI had a very weak correlation with soil water content so both indices are less responsive in describing soil moisture conditions in the field. Interpolated water content value had a fairly strong relationship with the soil water content and had the highest suitability, so the interpolation approach can be recommended for mapping soil water content in an oil palm plantation area.

Perencanaan Pengembangan Kawasan Perkebunan Kopi Arabika di Kabupaten Bener Meriah Ilham iwan Tona; Boedi Tjahjono; Iskandar Lubis
Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangunan Wilayah dan Perdesaan) Vol. 7 No. 1 (2023): Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangu
Publisher : P4W LPPM IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jp2wd.2023.7.1.118-137

Regional development is one of the efforts to increase socio-economic growth and reduce regional disparities. The Arabica coffee variety is one of the mainstay commodities in this region and a source of income for the people in Bener Meriah Regency. Land use planning based on superior commodities is expected to be able to overcome problems related to the effectiveness of land use, through this land use planning, land allocation will be determined according to its designation. The purpose of this study was to formulate a strategy in planning the development of Arabica coffee plantation areas in Bener Meriah Regency, through the stages of identifying the distribution of coffee plantations, analyzing potential availability and land suitability, analyzing agribusiness systems and analyzing the level of availability of regional facilities and infrastructure. The results of the analysis show that the distribution of Arabica coffee plantations in Bener Meriah Regency reaches an area of 46,167 ha. As for the extensive development of coffee plantations, this district has a suitable land area of 7,401.1 ha. The most dominant land suitability class is N with a height limiting factor with an area of 3,581.92 ha. Farming coffee farmers carried out by farmers is efficient because it has an R/C ratio = 2. The availability of facilities and infrastructure shows that the 2 sub-districts that have the highest level of service and development, namely Bukit District and Weh Pesam District, are classified as developed or Hierarchy I. Based on the AWOT, the suggested alternative strategy for the development of Arabica coffee plantations in Bener Meriah Regency is to optimize the availability of land and the use of infrastructure needed to support the improvement of the quality of plants and products.

Co-Authors A Kasno A.A. Ketut Agung Cahyawan W Abdjad Asih Nawangsih Achmad, Alfredian Alamin Yang First Alfin Murtadho Amalia Ratnasari Andrea Emma Pravitasari, Andrea Emma Annajmi, Nabila ANTONIUS KASNO Arief Hartono Asdar Iswati Atang Sutandi Aufa H. A. Syafril, Aufa H. A. Baba Barus Bambang Hendro Trisasongko Bambang Hendro Trisasongko Bambang Hero Saharjo Budi Marwoto Chiharu Hongo, Chiharu D.P. Tejo baskoro Darmawan Dede Nurrahman Hakim Despry Nur Annisa Ahmad, Despry Nur Annisa Diah Listyarini Dinik Indrihastuti Dinik Indrihastuti Dwi Putro Tedjo Baskoro Dwi Putro Tejo Baskoro Dwi Shanty Apriliani Gunadi Dyah R Panuju Dyah R. Panuju Dyah R. Panuju Edwin Hidayat, Edwin Ema Suhaema Enni Dwi Wahjunie Ernan Rustiadi Euis Sunarti Febria Heidina, Febria Fifi Gus Dwiyanti Giofandi, Eggy Arya H.A. Syafril, H.A. Hanudin Hanudin Hari Wijayanto Haris, Fikri Dwi Hermanto Siregar I Nengah Surati Jaya Ikqra Ikqra Ilham iwan Tona Imas Sukaesih Sitanggang Indah Firdiana Irzaman, Irzaman Iskandar Lubis Khursatul Munibah Komarsa Gandasasmita Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono Lailan Syaufina Lia Meyana LILIK BUDIPRASETYO Luluk Dwi Wulan Handayani M. Galih Permadi Mahir Rachman, Latief Mahmud A. Raimadoya Mahmud A. Raimadoya Mazlan Muhaimin Muhaimin Muhamad Rizal Gojali Muhammad Fitrah Irawan Muhammad Pramulya Muya Avicienna Nabila Annajmi NINA WIDIANA DAROJATI Nuniek Sutanti Nurwajedi Nurwajedi Panuju, Dyah R. Rakhmad Fadillah Rival Rahman, Rival Rusdi Mahardi Sakti, Harry Hardian SANTUN R.P SITORUS Santun R.P Sitorus Saputra, Roby Sigit, Gunardi Siti Faizah Zauhairah Sobri Effendy Sri Harini Sri Mulatsih Sumardani Kusmajaya Supriyati Supriyati Supriyati Supriyati Suria Darma Tarigan Susanti, Dwi Rahayu Syaiful Anwar Taufik Z. Karim Turmudi Uciningsih, Winda Untung Sudadi Wicaksono Tri Wuryanto Widiatmaka Wistha Nowar Zulham Husein

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