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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
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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Ancaman Konversi Lahan Sawah Terhadap Kecukupan Beras di Kabupaten Musi Rawas Alamin Yang First; Baba Barus; Boedi Tjahjono
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.2023.7.1.42-57

Abstract

Rice production in 2019 decreased by 2.63 million tons or 7.75 percent compared to 2018, exacerbated by the increasingly massive conversion of agricultural land. One of the areas threatened by land conversion is Musi Rawas Regency in South Sumatra Province. This study aims to analyze changes in land use in 2000, 2010, 2020 and paddy fields for rice sufficiency in Musi Rawas Regency. The method used is Cellular Automata-Markov (CA-Markov), analysis of the surplus-deficit food balance, and paddy fields overlaying the spatial plan. Based on the results of the analysis, there was a change in land use in Musi Rawas Regency between 2000 to 2020, an increase in the area of plantation land by 128,867.74 ha. This increase is largely the result of conversion of paddy fields. The results of the calculation of the predicted demand for rice in 2030 show that in total there will be a rice deficit of -16,511 tons. It is predicted that there will be a rice deficit due to the decrease in the area of paddy fields which is affected by changes in land use from paddy fields to non-paddy fields. The suitability of existing paddy fields with the 2010 to 2030 RTRW shows an area of 7,598.73 ha of actual paddy fields in 2020 is suitable, 3,057.27 ha is not suitable. The incompatibility of paddy fields in 2020 with the RTRW can be input into the revision of the RTRW that will be carried out by the Musi Rawas Regency government, especially on the spatial pattern of paddy fields.
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): Edisi Bulan Juli
Publisher : Pendidikan Geografi Universitas Muhammadiyah Prof. Dr. Hamka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29405/jgel.v2i2.1517

Abstract

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
Modeling Landslide Hazard Using Machine Learning: A Case Study of Bogor, Indonesia Boedi Tjahjono; Indah Firdiana; Bambang Hendro Trisasongko
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 14 No 2 (2024): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.14.2.407

Abstract

Landslides occur in many parts of the world. Well-known drivers, such as geological activities, are often enhanced by violent precipitation in tropical regions, creating complex multi-hazard phenomena that complicate mitigation strategies. This research investigated the utility of spatial data, especially the digital elevation model of SRTM and Landsat 8 remotely sensed data, for the estimation of landslide distribution using a machine learning approach. Bogor Regency was chosen to demonstrate the approach considering its vast hilly/mountainous terrain and high rainfall. This study aimed to model landslide hazards in Sukajaya District using random forests and analyze the key variables contributing to the isolation of highly probable landslides. The initial model, using the default settings of random forest, demonstrated a notable accuracy of 93%, with an accuracy ranging from 91 to 94%. The three main predictors of landslides are rainfall, elevation, and slope inclination. Landslides were found to occur primarily in areas with high rainfall (2,668–3,228 mm),elevations of 500 to 1,500 m, and steep slopes (25–45%). Approximately 4,536 ha were potentially prone to landslides, while the remaining area (> 12,000 ha) appeared relatively sound.
Hydrological Modeling in the Capluk Watershed, Rembang Regency for Evaluation of Spatial Patterns Sri Harini; Boedi Tjahjono
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 14 No 4 (2024): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.14.4.801

Abstract

Rembang Regency has little annual rainfall, ranging from 1,000 to 2,000 mm. The Capluk Watershed in Rembang is the only one with a discharge station. The average rainfall of the watershed in 2011 to 2020 is relatively low (1,877 mm/year). Moors are the dominant land use in the watershed, so the watershed is prone to drought. This study aims to assess the water balance and land use planning to reduce water deficits. The FJ Mock modeling method is used to understand hydrological phenomena, where the results can help manage water resources by regulating land use by utilizing the exposed surface parameters in the model. The results show that the demand for water in the watershed for the 2011 to 2020 period reaches an average of 49,151,012 m3/year, while the availability of water is 132,512,172 m3/year. This condition shows that the total water balance experiences an average surplus of 83,361,160 m3/year but experiences a deficit in the dry season, an average of 3,452,278 m3/year. For land use planning, scenario 5 (a combination of regionalspatial plan maps, forest area maps, general plan for forest and land rehabilitation maps, and land use in 2020) is the best in reducing the water deficit by 20,383,274 m3 or can lower the water deficit to 4,957,173 m3.
Bibliometric Analysis of Tourism Development Based on Disaster Mitigation Through the Scopus Database Taufik Z. Karim; Hermanto Siregar; Sri Mulatsih; Boedi Tjahjono
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 14 No 4 (2024): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.14.4.719

Abstract

The development of the world tourism industry in daily life still focuses on the beauty of tourist attractions and the economic income of a country. Still, it ignores crisis conditions, such as disasters in tourist areas. Therefore, disaster mitigation is expected to educate the public and tourists to prepare them for a disaster. The research objective is to universally analyze the development of tourism research topics based on disaster mitigation. The research method used was bibliometric analysis. Bibliometric analysis helps identify the distribution of articles published in Scopus-indexed journals, authors, institutions, citations, countries, topic trends, keywords, and networks between authors. The research results show that the disaster mitigation process refers to structural and nonstructural mitigation actions, such as infrastructure development, increasing public knowledge about disaster mitigation, creating disaster evacuation routes, and strengthening regulations. Meanwhile, the results of the bibliometric analysis show that the country that produces the most scientific writing on tourism and disaster mitigation is Indonesia, with 49 articles, followed by China with 16 articles, the United States with 12 articles, Japan with 5 articles, India and the UK with 4articles. These results indicate that Indonesian writers have contributed globally to tourism and disaster mitigation.
The Strategy for Developing an Arabica Coffee Plantation-Based Area in Banyumas Regency Dede Nurrahman Hakim; Boedi Tjahjono; Arief Hartono
Eduvest - Journal of Universal Studies Vol. 4 No. 7 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i7.1572

Abstract

The Gross Regional Domestic Product (GRDP) of Banyumas Regency has increased over the past 5 years, with the largest contributor to the Gross Value Added category being the Agriculture and Forestry sector. Arabica coffee varieties are one of the mainstay commodities in the region and a source of income for the people of Kabupaten Banyumas. The main objective of this research is to develop a strategy in planning the development of arabica coffee plantation area in Kabupaten Banyumas. The research area covers all 29 sub-districts starting from January to April 2024. In looking at the actual distribution of arabica coffee plantations, overlay analysis techniques were used using data from land use maps, elevation maps. Land availability was analyzed through overlay and matching techniques with ArcGIS software and direct measurement. Arabica coffee agribusiness system was analyzed through R/C ratio descriptively. The development strategy of Arabica coffee plantation area in Banyumas Regency was conducted using AWOT analysis. The results showed that the actual distribution of arabica coffee plantations in the cultivation area in Banyumas Regency covers several sub-districts and the area reaches 1,214 ha. Available and suitable land for the development of arabica coffee plantation in the cultivation area is indicated to reach an area of 20,471 ha, of which the largest area is located in Lumbir Sub-district with an area of 3,726 ha or 18.09% of the total available land area.
IDENTIFIKASI KARAKTERISTIK POLA SPASIAL HULU HILIR PADI ORGANIK DI KABUPATEN SERDANG BEDAGAI Annajmi, Nabila; Tjahjono, Boedi; Anwar, Syaiful
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 1 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.1.2

Abstract

Organic agriculture must be applied in an integrated manner, from upstream to downstream, forming a system. This subsystem is part of the market-oriented agribusiness concept by paying attention to quantity, quality, and continuity to gain income and agricultural productivity profits. This study aimed to look at the development of organic rice farming in the Serdang Bedagai Regency from a regional (spatial), agribusiness, and economic point of view. ANN analysis involves distance variables between agribusiness subsystems, road infrastructure, and transportation. The results of the analysis showed that the spatial pattern of organic rice formed in the Serdang Bedagai Regency was distributed, especially in Lubuk Bayas Village and Tanah Merah Village, with each having a value of R = 2.81 (R> 1) and R = 6.15 (R>1). Pematang Setrak Village had a clustered spatial pattern or had a value of R = 0.12 (R<1). This shows that the closer the locations between the subsystems are, the more profitable it is, thus saving production and transportation costs. The gains obtained were strengthened by the results of the R/C ratio produced, namely Tanah Merah Village with a value of 1.36, Lubuk Bayas Village with a value of 1.39, and Pematang Setrak Village with a value of 1.48. This means that farming activities are pretty efficient.
Degraded Peatlands and Their Utilization Opportunities in Kepulauan Meranti Regency, Riau Province, Indonesia Turmudi, Turmudi; Saharjo, Bambang Hero; Prasetyo, Lilik Budi; Tjahjono, Boedi
Indonesian Journal of Geography Vol 55, No 3 (2023): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.84986

Abstract

Degraded peatlands are caused by various factors, including land fires, water mismanagement, and mining activities. Indicators of degraded peatlands can be identified through the type of land cover observed in the field, which commonly includes shrubs and barren land (open areas of ex-mining land). Therefore, this study aimed to determine the dynamics of the existence of degraded land and its utilization opportunities using spatial, image, and time series analysis methodDepartment Forest Resources Conservation & Ecotourism, Forestry Faculty, Bogor Agricultural University Kampus IPB Darmaga PO.Box 168 Bogor-Indonesias. To conduct the analysis, various data sources were employed, including Landsat imagery, the Regional Spatial Planning (RTRW) map, hotspots data, rainfall data, landforms maps, peatlands data, and soil information. The results of the study showed that between 1999 and 2019, the average area of degraded peatlands amounted to 198,084.54 hectares. Furthermore, the optimal area of degraded peatlands utilized for agriculture amounted to 7,122.45 hectares . Inventory of degraded peatland using the land cover approach can be obtained faster, cheaper, easier than the terrestrial method. Opportunities for using degraded land for agricultural purposes were also identified through the selection of plant species that exhibited adaptability to peatlands and held economic value. These selected plants, including sago, rubber, areca nut, and liberika coffee, were developed within the Meranti Islands Regency. 
Analisis Kemandirian Pangan Berbasis Perubahan Penggunaan Lahan di Kota Metro, Provinsi Lampung Saputra, Roby; Tjahjono, Boedi; Pravitasari, Andrea Emma
Jurnal Pembangunan Wilayah dan Kota Vol 18, No 4 (2022): JPWK Volume 18 No. 4 December 2022
Publisher : Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/pwk.v18i4.38728

Abstract

Kota Metro merupakan wilayah di Provinsi Lampung yang memiliki luas sawah hampir separuh dari luas wilayahnya. Setidaknya 95 % lahan sawah tersebut merupakan lahan sawah beririgasi teknis. Perkembangan Kota Metro cukup pesat seiring dengan meningkatnya populasi penduduk dan aktivitas ekonomi. Kondisi ini mengakibatkan meningkatnya alih fungsi lahan, terutama sawah menjadi non sawah. Tujuan penelitian ini adalah menganalisis kemampuan Kota Metro dalam memenuhi produksi pangan secara mandiri berdasarkan dinamika perubahan penggunaan lahan yang terjadi. Perubahan penggunaan lahan diidentifikasi dengan cara overlay peta penggunaan lahan hasil interpretasi visual citra SPOT tahun 2007, 2013 dan 2019. Prediksi penggunaan lahan tahun 2031 menggunakan pendekatan modul Cellular Automata – Markov dengan menggunakan dua skenario, yaitu skenario business as usual dan skenario konservatif. Analisis kemandirian pangan dengan menghitung neraca produksi dan konsumsi beras berdasarkan luas sawah hasil prediksi. Hasil menunjukkan penggunaan lahan didominasi pada penggunaan lahan sebagai bangunan permukiman dan sawah dengan persentase keduanya mencapai 87 %, penggunaan lahan lainnya berupa bangunan non permukiman, kebun campuran, tegalan, semak belukar, RTH dan tubuh air. Pada tahun 2019 neraca pangan pokok masih berstatus surplus, namun tahun 2031 status neraca pangan pokok menjadi defisit, kondisi status neraca pangan surplus dapat dipertahankan dengan adanya intervensi pemerintah untuk mempertahankan lahan sawah eksisting.
Understanding the impact of land use change on urban flood susceptibility mapping assessment: A review Giofandi, Eggy Arya; Tjahjono, Boedi; Mahir Rachman, Latief
Journal of Degraded and Mining Lands Management Vol. 11 No. 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.113.6025

Abstract

Over the past few years, numerous urban areas have been identified in floodplains and coastal regions. These areas should be repurposed as water storage zones to enhance surface water infiltration. The escalating demand for land in flat areas adds complexity to the susceptibility of urban areas to flood hazards. The observation focuses on understanding how land use change influences urban flood susceptibility assessment. Several aspects assumed to have a significant relationship with the flood phenomenon include the impact of land use change, environmental health impact, modification of land typology, explanation of urban flooding, appropriate model for flood-prone assessment, current state of research, appropriate steps in decision-making in susceptibility areas, and challenges of the scenario-based flood-prone mapping model in the future. Additionally, the assessment aspect should consider the impact of land degradation resulting from land use change. Integrated measures are necessary to guide future studies aimed at improving ecological quality and restoring environmental health. The availability of free and open-source datasets facilitates conducting studies to support decision-making both locally and regionally.
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