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Prioritas Pengembangan dan Pengelolaan Jaringan Irigasi Tersier di D.I. Yogyakarta Menggunakan Multiple Attribute Decision Making Ansita Gupitakingkin Pradipta; Murtiningrum Murtiningrum; Niko Windy Dwi Febriyan; Fathi Alfinur Rizqi; Ngadisih Ngadisih
Jurnal Irigasi Vol 15, No 1 (2020): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31028/ji.v15.i1.55-69

There are five pillars in the irrigation network management, one of them is the improvement of irrigation network facilities and infrastructure. The improvement of irrigation network facilities and infrastructure is divided into two activities, namely development and management. Related to these activities, there are many locations in the irrigation area that require prior handling. This study purposed to analyze the priority of ten irrigation systems of district authority spread over D.I. Yogyakarta for optimizing the implementation of management of irrigation networks. The analysis used (Multiple Attribute Decision Making) MADM which consists of SAW, WP, TOPSIS, Electre and AHP methods. Five parameters used in the analysis, including main irrigation network infrastructure, tertiary irrigation network infrastructure, water availability, service area, and crop productivity. The study proved that the tertiary irrigation network in 10 irrigation systems of district authority in D.I. Yogyakarta suffered moderate to severe damage in a number of 65 locations. There were 11 locations that always appear at the top of each MADM, which were priority proposals for irrigation network development and management activities. In addition, there was a tendency that the higher the irrigated area, the higher the priority of development or management of a location. If there are several proposed locations with similar conditions, the determination of priorities can be determined based on the irrigated area.

Kajian Dampak Penambangan Pasir Terhadap Kualitas Air Sungai Untuk Irigasi di Indonesia Fahima, Sahidatun; Tanjung, Jeane Claudea; Sinatrya, Azka; Wulan, Indah Retno; Ngadisih, Ngadisih; Lestari, Prieskarinda
Jurnal Teknologi Lingkungan Lahan Basah Vol 12, No 1 (2024): Januari 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v12i1.74581

The high demand for sand as a material is in line with the increase in sand mining activities. The main sand mining location commonly takes place in rivers. Even though rivers are also used as the main source for agricultural irrigation. The sand mining activities could affect river water quality, which could also impact irrigation on plant growth and crop yields. This review aimed to analyze the impact of sand mining in several locations in Indonesia on river water quality for irrigation. The data collection method was carried out by searching for articles according to the topic on Google Scholar using several predetermined keywords. Analysis and review were carried out through several stages and 6 articles were obtained according to the topic. Sand mining activities in rivers are frequently carried out using manual and mechanical techniques. The use of manual techniques in mining can have an impact on river morphology as well as the physical and chemical quality of river water. Mechanical techniques have a greater impact on changes in river water quality, where most mining is carried out using manual techniques. Therefore, the sand mining with mechanical techniques, especially using excavators, can have a higher impact on the quality of river water for irrigation.

Enabling Precision Agriculture through a Web-Based Fertilization Management System for Nawungan Selopamioro Fruit Orchards Nugroho, Andri Prima; Wijaya, Fauzan Edy; Ngadisih, Ngadisih; Masithoh, Rudiati Evi; Sutiarso , Lilik
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 12 No 2 (2024): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v12i2.627

Precision Agriculture (PA) is an integrated farming system based on information and technology for managing agriculture to identify, analyze, and manage spatial and temporal diversity information in specific locations to obtain optimum and sustainable benefits while minimizing unwanted environmental impacts. Fertilization is one of the crucial phases in agricultural production process considering technical cultivation aspects, costs, and environmental impacts. The current fertilization process at Kebun Buah Nawungan Selopamioro (KBNS) is still conventional, so there is no standard rule in determining the fertilization dose. Therefore, a PA approach is needed to provide suitable fertilizer doses for agricultural production needs. This objective of this study was to develop of a web-based fertilizer management system, integrating with orchard management to enhance accessibility and decision-making. The system calculates fertilizer requirements by analyzing soil nutrient availability (N, P, K), cultivation area, crop type and age, and available fertilizer types. The development followed the waterfall methodology, encompassing stages from requirement analysis to system maintenance. The outcome is a web application that manages land assets, administrative activities, and fertilizer needs tailored to specific land blocks, crop characteristics, and nutrient inventories. Subsequent validation against field conditions ensures the accuracy of its recommendations. Although comprehensive testing confirmed a 100% success rate in functionality, the system currently operates within a limited scope of variables. Future enhancements are planned to incorporate broader agronomic factors, such as soil pH and texture, to augment the system's precision. Despite its limitations, this system represents a significant technological advance in precision agriculture, promising to improve fertilizer application efficiency and support sustainable farming practices.

Pendekatan Komprehensif Kesesuaian Lahan Budidaya Tanaman Padi Sawah di Kabupaten Paser, Provinsi Kalimantan Timur Ngadisih, Ngadisih; Fitriana, Lely; Susanto, Sahid; Arief, Sigit Supadmo; Zaki, Muhamad Khoiru; Setyawan, Chandra
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 12 No 2 (2024): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v12i2.661

This study aimed to present a comprehensive evaluation of land suitability for wetland paddy cultivation in Paser Regency, East Kalimantan Province using the Simple Additive Weighting (SAW) process and Geographic Information System (GIS) techniques. The ten factors determining land suitability selected were soil texture, soil depth, soil drainage, soil type, rainfall, temperature, slope, distance from roads, distance from rivers and land use. The factor weights were considered the same, for the suitability analysis of the use of rice development in the study area. Then, after carrying out a weighted sum analysis, Paser Regency was qualitatively categorized as very suitable, quite suitable, marginally suitable, not currently suitable for rice land development with values of 20, 39, 28, 13% respectively. Meanwhile, taking into account land use, the very suitable category was 20% and quite suitable was reduced to 33% of the total research area. Based on the available land, the opportunity for developing rice plantations in Paser Regency was relatively large. The study revealed that the SAW approach technique was acceptable for identifying appropriate land for rice development in the study area.

Biogas Technology for Strengthening Soil and Water Conservation: A Case Study in Leksana Village, Merawu Subwatershed Suryatmojo, Hatma; Ngadisih, Ngadisih; Nugroho, Joko; Nugroho, Nunung Puji; Cahyono, Sigit Andy
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 10, No 2 (2024): June
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.90737

Soil and water conservation is one of the keys to preserving natural resources. Livestock development can optimize the use of grass for soil and water conservation. However, livestock manure waste is a problem for the environment and health. This study aimed to explore the role of biogas technology in supporting the strengthening of soil and water conservation in the Merawu Subwatershed. Through a community empowerment approach, this research included educational programs, implementation of biogas technology, and evaluation of impacts on the environment and economic welfare of the community. After implementing the education program, the results showed a significant increase in public awareness related to environmental conservation. Biogas technology has been successfully installed in households as a pilot project and can operate the biogas system independently. It found positive environmental impacts, including improved soil quality and decreased organic waste load in local water sources. Increased economic welfare is also recorded through a decrease in costs for cooking fuel by 75%; moreover, there is a potential decrease in farming costs with organic fertilizers. The successful implementation of this biogas can be an inspiring model for households and other regions, demonstrating the potential of biogas technology as a holistic solution to soil and water conservation challenges. Although successful, the study identified several challenges, including the resilience of biogas systems to weather fluctuations and the program's expansion to a broader region. Recommendations were given to expand community education, improve technical sustainability, and strengthen stakeholder cooperation. In conclusion, this research makes significant contributions to the literature and practices of community empowerment and natural resource conservation, affirming that biogas technology can be a motor of sustainable positive change at the local level.

Kerawanan Bencana Banjir di Kabupaten Gunungkidul Yogyakarta, Indonesia Dewi, Ni Luh Trisna Candra; Sulastri, Ni Nyoman; Ngadisih, Ngadisih; Arthawan, I Gusti Ketut Arya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i01.p02

Gunungkidul merupakan salah satu kabupaten yang ada di Daerah Istimewa Yogyakarta. Tahun 2020 Kabupaten Gunungkidul memiliki intensitas curah hujan yang tinggi yang dapat berpotensi untuk terjadinya banjir. Penelitian ini bertujuan untuk mengetahui dan membuat peta tingkat potensi kerawanan banjir di Kabupaten Gunungkidul. Proses identifikasi daerah rawan ini, menggunakan metode skoring dan pembobotan. Metode ini dilakukan dengan memberikan nilai skor dan bobot pada masing-masing parameter curah hujan, kemiringan lereng, ketinggian, jenis tanah, penggunaan lahan sehingga sehingga menghasilkan Peta Kerawanan Banjir di Kabupaten Gunungkidul. Hasil penelitian menunjukkan bahwa Kabupaten Gunungkidul memiliki curah hujan yang berkategori sedang 2161-2287 mm/th dengan luas wilayah 67.862,24 ha sekitar 45,69%, kemiringan lereng datar dengan luas wilayah 50.037 ha sekitar 33,69 %, ketinggian <100 m dengan luas wilayah 67.939,4 ha sekitar 53,48 %, Jenis tanah didominasi mediteran dengan luas 79.254,82 ha sekitar 53,37% dan penggunaan lahan didominasi tegalan dengan luas 56.228,93 ha sekitar 37,86%, sehingga mendapatkan hasil berupa 3 kelas tingkat kerawanan banjir yaitu tingkat rawan banjir rendah dengan luas 93.930,19 ha sekitar 62,58% dari luas wilayah, tingkat rawan sedang dengan luas 53.509,45 ha sekitar 35,51% dari luas wilayah, tingkat kerawanan banjir tinggi dengan luas 1.091,81 ha sekitar 0,71% luas wilayah Kabupaten Gunungkidul. ABSTRACT Gunungkidul is one of the regencies in the Special Region of Yogyakarta. In 2020 Gunungkidul Regency had a high intensity of rainfall which has the potential for flooding. This study aims to determine the potential level of flood vulnerability in Gunungkidul Regency and to create a map. The process of identifying these vulnerable areas used a scoring and weighting method. This method is carried out by assigning a score and weight to each rainfall parameter, slope, height, soil type, and land use to produce a Flood Vulnerability Map in Gunungkidul Regency. The results show Gunungkidul Regency has a moderate rainfall category (2161-2287 mm/year) with an area of 67.862.24 ha (45.69%), a flat slope with an area of 50.037 ha (3.69%), a height of <100 m with an area of 67.939.4 ha (53.48%). The Mediterranean dominates soil type with an area of 79.254.82 ha (53.37%). Land use is dominated by moor with an area of 56.228.93 ha (37.86%). The level of vulnerability was categorized into three groups. About 62.58% of the area is classified as low flood vulnerability. Approximately 35.51% of the area is at a medium flood vulnerability level. About 0.71% is the area with a high flood vulnerability.

Kajian Kerawanan Bencana Kekeringan di Kabupaten Gunungkidul di Yogyakarta, Indonesia Dewi, Luh Wiwin Pradnya; Sulastri, Ni Nyoman; Ngadisih, Ngadisih; Sucipta, I Nyoman
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i01.p01

Gunungkidul merupakan salah satu kabupaten di Daerah Istimewa Yogyakarta yang wilayahnya didominasi oleh perbukitan karst. Gunungkidul memiliki curah hujan rata-rata 1.881,94 mm/tahun yang menjadikan daerah ini berpotensi mengalami kekeringan. Penelitian ini bertujuan untuk mengetahui dan membuat peta kerawanan kekeringan di wilayah Gunungkidul. Metode yang akan digunakan dalam menganalisis data yakni dengan pemberian skor dan bobot pada masing-masing parameter curah hujan, jenis tanah, penggunaan lahan, kemiringan lereng dan suhu permukaan untuk menghasilkan peta kerawanan kekeringan. Hasil penelitian ini menunjukan bahwa Gunungkidul memiliki curah hujan sedang dengan intensitas berkisar 2100-2385 mm/tahun dengan jenis tanah yang didominasi oleh jenis tanah mediteranian dengan luasan 79.254,8 ha atau sekitar 54% dari seluruh wilayah penelitian. Penggunaan lahan didominasi oleh tegalan dengan 56.229 ha atau sekitar 38% dari seluruh wilayah penelitian dengan kemiringan lereng datar yang luas wilayahnya 50.037 sekitar 33,69% dari seluruh wilayah penelitian dan suhu permukaan yang homogen yakni 26,74oC. Data tersebut kemudian di overlay dengan penentuan indeks bahaya kekeringan yang diklasifikasikan menjadi 4 kelas yakni aman, agak rawan, rawan, dan sangat rawan. Dari hasil analisis dapat disimpulkan bahwa Gunungkidul secara umum sangat rentan terhadap bencana kekeringan dengan kekeringan yang terjadi adalah kekeringan geometeorologis dimana tingkat kerawanan kekeringan paling besar dipengaruhi oleh curah hujan, jenis tanah dan penggunaan lahan. ABSTRACT Gunungkidul is a district in the Special Region of Yogyakarta whose territory is dominated by karst hills. Gunungkidul has an average rainfall of 1.881,94 mm/year which makes this area potentially experience drought. This study aims to determine and create a drought vulnerability map in the Gunungkidul region. The method that will be used in analyzing the data is by giving scores and weights to each parameter of rainfall, soil type, land use, slope, and surface temperature to produce a drought vulnerability map. The results of this study indicate that Gunungkidul has moderate rainfall with intensities ranging from 2100-2385 mm/year with soil types dominated by Mediterranean soil types with an area of ??79.254,8 ha or around 54% of the entire study area. Land use is dominated by moor areas with 56.229 ha or around 38% of the entire study area with flat slopes with an area of ??50.037 or about 33.69% of the entire study area and a homogeneous surface temperature of 26.74 oC. The data is then overlaid by determining the drought hazard index which is classified into 4 classes namely safe, somewhat vulnerable, vulnerable, and very vulnerable. From the results of the analysis, it can be concluded that Gunungkidul, in general, is very vulnerable to drought the drought that occurs is a geometeorological drought where the level of drought vulnerability is most influenced by rainfall, soil type, and land use.

PENERAPAN TATA LETAK TANAMAN DAN REAKTOR PIROLISIS BIOMASSA KONVERSI MENJADI BIOCHAR BERBAHAN BAKU SAMPAH PERKOTAAN Sugiarto, Tris; Sartohadi, Junun; Praharto, YB; Ngadisih, Ngadisih; Hidayati, Nurul; Harlin Jennie Pulungan, Nur Ainun
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol 6, No 3 (2024): BUDIMAS : Jurnal Pengabdian Masyarakat
Publisher : LPPM ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/budimas.v6i3.15602

Desa Rawalo, Kabupaten Banyumas, berdasarkan data biogeofisik memiliki kontur dan bentang wilayah berupa dataran dengan sebagian besar berupa area perkebunan dengan area perbukitan dengan area tertinggi 300 mdpl. Desa ini memiliki unit pengelolaan sampah kapasitas 9-10 ton/hari yang menghasilkan sampah pilahan plastik dan organik. Sampah organik oleh kelompok tani diolah menjadi pupuk melalui dekomposisi alami tetapi membutuhkan waktu proses 30 hari dan menimbulkan timbunan diarea hanggar. Unit pengelola sampah membutuhkan penetrasi dan peningkatan teknologi untuk mendukung ketahanan pangan dan produktivitas pertanian. Metode yang diterapkan meliputi penerapan teknologi pirolisis menggunakan reaktor ganda untuk mengonversi sampah organik menjadi biochar, produk berkarbon tinggi yang memiliki potensi besar dalam memperbaiki kualitas tanah pertanian. Biochar berfungsi sebagai pembenah tanah, meningkatkan kapasitas penyimpanan air dan nutrisi, serta mendukung pertumbuhan tanaman. Produksi biochar diintegrasikan dengan tata letak tanaman yang disusun secara optimal sesuai kebutuhan nutrisi dan struktur akar untuk menciptakan lingkungan tumbuh tanaman pangan lebih sinergis. Metode tata letak ini diberikan untuk penataan tanaman yang leboh produktif. Penggunaan biochar diaplikasikan pada area lahan petani secara terbatas, terutama pada lokasi tanah yang sudah hilang lapisan humusnya. Teknologi tepat guna Mesin pencuci asap vortex wet scrubber dan sealer paking pupuk/biochar. Penguatan manajamen melalui Forum Diskusi, workshop dan aplikasi dilapangan dengan menggunakan teknologi tepat guna memastikan proses produksi yang ramah lingkungan. Kinerja pengelolaan sampah didukung dengan website yang terintegrasi layanan penjualan produk. Penguatan Pendekatan ini diharapkan menjadi model pengelolaan sampah organik yang berkelanjutan dan berdampak positif bagi ketahanan pangan lokal. Kata kunci: Sampah, Organik, Pirolisis, Biochar, Tata Letak Tanaman, Biomassa. Abstract Based on biogeophysical data, Rawalo Village, Banyumas Regency, is situated on flat terrain dominated by agricultural areas and hill regions with an elevation of up to 300 meters above sea level. This village operates a waste management unit with a capacity of 9-10 tons per day, producing sorted plastic and organic waste. Organic waste is processed by farmer groups into compost through natural decomposition, a process that requires 30 days and results in stockpiling in hangar areas. The waste management unit requires technological penetration and enhancement to support food security and agricultural productivity. The approach involves the application of pyrolysis technology using a dual-reactor system to convert organic waste into biochar a high-carbon product with considerable potential for improving soil quality in agricultural land. Biochar functions as a soil amendment, increasing water retention and nutrient availability, while also supporting plant growth. In its application, biochar production is integrated with an optimal crop layout tailored to nutrient needs and root structures, creating a synergistic environment for food crops. This layout method optimizes plant arrangement for greater productivity. Biochar use is applied on a limited basis to farming areas, primarily where soil has lost its humus layer. Appropriate technology such as the vortex wet scrubber for smoke filtering and packaging sealers for fertilizers/biochar is utilized. Management is strengthened through discussion forums, workshops, and field applications using appropriate technology to ensure an environmentally friendly production process. Waste management performance is further supported by an integrated website offering product sales services. This approach is expected to serve as a sustainable model for organic waste management and to positively impact local food security. Keywords: Waste, Organic, Pyrolysis, Biochar, Plant spatial arrangement, Biomass resources.

PENERAPAN TATA LETAK TANAMAN DAN REAKTOR PIROLISIS BIOMASSA KONVERSI MENJADI BIOCHAR BERBAHAN BAKU SAMPAH PERKOTAAN Sugiarto, Tris; Sartohadi, Junun; Praharto, YB; Ngadisih, Ngadisih; Hidayati, Nurul; Harlin Jennie Pulungan, Nur Ainun
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol. 6 No. 3 (2024): BUDIMAS : Jurnal Pengabdian Masyarakat
Publisher : LPPM ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/budimas.v6i3.15602

Desa Rawalo, Kabupaten Banyumas, berdasarkan data biogeofisik memiliki kontur dan bentang wilayah berupa dataran dengan sebagian besar berupa area perkebunan dengan area perbukitan dengan area tertinggi 300 mdpl. Desa ini memiliki unit pengelolaan sampah kapasitas 9-10 ton/hari yang menghasilkan sampah pilahan plastik dan organik. Sampah organik oleh kelompok tani diolah menjadi pupuk melalui dekomposisi alami tetapi membutuhkan waktu proses 30 hari dan menimbulkan timbunan diarea hanggar. Unit pengelola sampah membutuhkan penetrasi dan peningkatan teknologi untuk mendukung ketahanan pangan dan produktivitas pertanian. Metode yang diterapkan meliputi penerapan teknologi pirolisis menggunakan reaktor ganda untuk mengonversi sampah organik menjadi biochar, produk berkarbon tinggi yang memiliki potensi besar dalam memperbaiki kualitas tanah pertanian. Biochar berfungsi sebagai pembenah tanah, meningkatkan kapasitas penyimpanan air dan nutrisi, serta mendukung pertumbuhan tanaman. Produksi biochar diintegrasikan dengan tata letak tanaman yang disusun secara optimal sesuai kebutuhan nutrisi dan struktur akar untuk menciptakan lingkungan tumbuh tanaman pangan lebih sinergis. Metode tata letak ini diberikan untuk penataan tanaman yang leboh produktif. Penggunaan biochar diaplikasikan pada area lahan petani secara terbatas, terutama pada lokasi tanah yang sudah hilang lapisan humusnya. Teknologi tepat guna Mesin pencuci asap vortex wet scrubber dan sealer paking pupuk/biochar. Penguatan manajamen melalui Forum Diskusi, workshop dan aplikasi dilapangan dengan menggunakan teknologi tepat guna memastikan proses produksi yang ramah lingkungan. Kinerja pengelolaan sampah didukung dengan website yang terintegrasi layanan penjualan produk. Penguatan Pendekatan ini diharapkan menjadi model pengelolaan sampah organik yang berkelanjutan dan berdampak positif bagi ketahanan pangan lokal. Kata kunci: Sampah, Organik, Pirolisis, Biochar, Tata Letak Tanaman, Biomassa. Abstract Based on biogeophysical data, Rawalo Village, Banyumas Regency, is situated on flat terrain dominated by agricultural areas and hill regions with an elevation of up to 300 meters above sea level. This village operates a waste management unit with a capacity of 9-10 tons per day, producing sorted plastic and organic waste. Organic waste is processed by farmer groups into compost through natural decomposition, a process that requires 30 days and results in stockpiling in hangar areas. The waste management unit requires technological penetration and enhancement to support food security and agricultural productivity. The approach involves the application of pyrolysis technology using a dual-reactor system to convert organic waste into biochar a high-carbon product with considerable potential for improving soil quality in agricultural land. Biochar functions as a soil amendment, increasing water retention and nutrient availability, while also supporting plant growth. In its application, biochar production is integrated with an optimal crop layout tailored to nutrient needs and root structures, creating a synergistic environment for food crops. This layout method optimizes plant arrangement for greater productivity. Biochar use is applied on a limited basis to farming areas, primarily where soil has lost its humus layer. Appropriate technology such as the vortex wet scrubber for smoke filtering and packaging sealers for fertilizers/biochar is utilized. Management is strengthened through discussion forums, workshops, and field applications using appropriate technology to ensure an environmentally friendly production process. Waste management performance is further supported by an integrated website offering product sales services. This approach is expected to serve as a sustainable model for organic waste management and to positively impact local food security. Keywords: Waste, Organic, Pyrolysis, Biochar, Plant spatial arrangement, Biomass resources.

Spatial Analysis of Landslide Potential in Agricultural Areas of Wadaslintang Catchment Area, Central Java Province Indonesia Nafisa, Gina Isna; Setyawan, Chandra; Ngadisih, Ngadisih; Susanto, Sahid; Pulungan, Nur Ainun Harlin Jennie
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 13 No 1 (2025): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v13i1.678

Landslides have occurred in several tropical regions of Indonesia and caused many losses in both upstream and downstream areas. This study aims to identify landslide prone areas in the Wadaslintang catchment area, Central Java Province Indonesia. Nine parameters were used to analyze landslide potential such as land use, land slope, rainfall, constituent rocks, soil type, soil permeability, population density, drainage density and runoff coefficient. Each parameter has five possibility scores (1 to 5) determined based on certain criteria. The value of each parameter was presented in a raster map with 15 meters of resolution and analyzed in ArcGIS 10.8. The level of landslide susceptibility was classified into five categories. The relationship between landslides and the triggered factor was analyzed using Frequency Ratio (FR). The result showed that the parameters with the highest FR values were land use, land slope, rainfall, and soil permeability, indicating a strong influence on landslides. Very high vulnerability areas were found in mixed farmland and settlements especially on steep slopes. Area with moderate and low categories of landslide vulnerability covers the largest area of the study site with an occupied area of 98.54 km2 (51.04% of the total area) and 57.91 km2 (29.99% of the total area), respectively. While the others i.e., areas with the very low, high and very high categories, occupy around of 3.74 km2 (1.94% of the total area), 30.94 km2 (16.02% of the total area), and 1.93 km2 (1% of the total area) respectively. Validation results indicated that landslides mostly occurred in areas with medium and high categories of landslide vulnerability.

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