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All Journal Jurnal Ecosolum Journal of Tropical Soils Forum Geografi Jurnal Dinamika Pengabdian (JDP) MEDIAN Forest and Society JURNAL METEOROLOGI DAN GEOFISIKA Jurnal Meteorologi dan Geofisika
Asmita Ahmad
Departemen Ilmu Tanah Universitas Hasanuddin,Fakultas Pertanian Kampus Unhas Tamalarea Jl. Perintis Kemerdekaan Km.10 Makassar, 90245. Sulawesi Selatan, Indonesia
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science Physics Social Sciences Other

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Combination of Bonding, Bridging and Linking Social Capital in a Livelihood System: Nomadic Duck Herders Amid the Covid-19 Pandemic in South Sulawesi, Indonesia Salman, Darmawan; Kasim, Kasmiyati; Ahmad, Asmita; Sirimorok, Nurhady
Forest and Society Vol. 5 No. 1 (2021): APRIL
Publisher : Forestry Faculty, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/fs.v5i1.11813

Abstract

Livelihood systems of nomadic duck herders make a unique study subject due to the livelihood assets, strategies, and outcomes they manage, which involve interactions with various actors that keep moving around. Social capital the duck herders build in their interaction with other actors, namely rice farmers, play an important role to face different vulnerability context, including those brought by the Covid-19 pandemic. This study aims to characterize components of bonding, bridging and linking social capital in the context of relationships between duck herders and other actors, and seeks to find the essential role of the combination of the three types of social capital for livelihood outcomes, particularly in facing vulnerabilities due to the pandemic. The method of grounded theory research was applied for its ability to allow researchers to reveal processual relationships between duck herders and other actors. Data were collected through semi structured interviews, analyzed by open, axial, and selective coding. The duck herders combine components of bonding, bridging, and linking social capital selectively depending on the interests behind each interaction with different actors. The bridging and linking role that social capital plays in herders’ interactions with farmers and irrigation officials is undertaken in order to gain access to natural capital (rice fields and irrigated water), while in their interaction with egg traders, they utilize bridging social capital to gain access to financial capital (in the form of cash and loans). The vulnerability context due to the pandemic has shaken the livelihood system of the duck herders by upsetting the egg supply chain due to social restriction policies. Social capital therefore plays an important role in facing vulnerability, in the context of forming good will among egg traders that continued to buy eggs from the duck herders, which served as a kind of pay back for the loyalty of the duck herders. We find that social capital plays a vital role in a livelihood system, within which the access to livelihood assets depend on social relations. This study also explored the impact of the Covid-19 pandemic as it resonates more on supply chains than production processes.
Sandstone Provenance of Walanae Formation as a Parent Rock in Bulukumpa area, Bulukumba Regency, South Sulawesi: Provenance Batupasir Formasi Walanae sebagai Bahan Induk Tanah di Daerah Bulukumpa Kabupaten Bulukumba, Sulawesi Selatan Farida, Meutia; Burhan, Moh. Junaedy; Umar, Hamid; Imran, A M; Ikhwana, Nur; Ahmad, Asmita
Jurnal Ecosolum Vol. 12 No. 2 (2023): DESEMBER
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v12i2.31432

Abstract

The Walanae Formation has a wide distribution in the southern arm of Sulawesi, this rock formation was deposited during the formation of the basin due to the Walanae strike-slip fault. The Walanae Formation in the study area comprises sedimentary rocks and pyroclastic rocks, which give different soil characteristics. This study aims to determine the types of sandstones, rocks of origin, and provenance of sandstones in the study area by using spot sampling at representative stations and petrographic analysis. The sandstones of the study area are divided into two groups based on Folk (1974), namely arkose lithic and feldspathic litharenite. Based on the type of quartz, rock fragments, and associated minerals, the origin of the sandstones in the study area are plutonic igneous rocks, volcanic rocks, sedimentary rocks, and metamorphic rocks. The results show that the types of provenance sandstones in the study area are magmatic arc and recycled orogenic.
Geocomputation and Spatial Analysis Applied for Geological Mapping: A Case Study in Palopo, South Sulawesi, Indonesia Langkoke, Rohaya; Ahmad, Asmita; Thamrin, Meinarni; Husain, Ratna; Iqbal, Muhammad
Jurnal Ecosolum Vol. 13 No. 1 (2024): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v13i1.33157

Abstract

In searching for a track record of earth formation, people tend to interpret field data in a way that limits the potential of history and explanation, which is often less influenced by theory and available facts, this requires valid data gathered intellectually. Geocomputing, which is the digital processing of geographic data, is a relatively recent field that reflects a wide range of research methodologies and their application to help solve problems in machine learning, geostatistics, image processing, and spatial analysis, among other areas. The purpose of this study was to assess the effectiveness of using geocomputational methods with Avenza Map and ArcGIS. This study uses geocomputation and spatial analysis to carry out geological mapping at a scale of 1:25,000 located in the Battang area, West Wara District, Palopo City, South Sulawesi. Two aspects are the main focus in implementing this research method, namely when mapping by relying on Avenza with a base map sourced from the Rupa Bumi Indonesia (RBI) map and on data management using the ArcGIS application to become a 3D map. Lithological of the study area showed basalt, porphyry basalt, and phyllite. The geological structure that develops in the research area is joint and fault. Avenza Map work with spatial analysis in ArcGIS is obtained cognitively, involving the relationship between individual conditions, tools, and terrain conditions. It can be stated that the use of avenza on smartphones in this modernization condition is more effective. This research allows for a review of the practical level of use of computer methods ranging from mapping to data management. Regarding implementing cognitive mapping, Avenza Map and ArcGIS can be recommended tools in geo-computation techniques as more effective support for recording and managing data while still paying attention to noise that may occur as a barrier to data accuracy.
PENERAPAN PENGELOLAAN IRIGASI PARTISIPATIF (PIP) BAGI PERKUMPULAN PETANI PEMAKAI AIR (P3A) DI KECAMATAN TURATEA KABUPATEN JENEPONTO SULAWESI SELATAN Marupah, .; Kadir, Muhammad; Ahmad, Asmita
Jurnal Dinamika Pengabdian Vol. 1 No. 2 (2016): JURNAL DINAMIKA PENGABDIAN VOL. 1 NO. 2 MEI 2016
Publisher : Departemen Budidaya Pertanian Fakultas Pertanian UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jdp.v1i2.2194

Abstract

Pengembangan dan Pengelolaan Sistem Irigasi Partisipatif (PPSIP) merupakan mandat pengelolaan sistem irigasi nasional yang tertuang dalam Undang-Undang Nomor 7 Tahun 2004 tentang Sumber Daya Air dan Peraturan Pemerintah Nomor 20 Tahun 2006 tentang Pengelolaan Irigasi. Pemberdayaan kelembagaan tingkat kelompok petani yang berbasis pada peran serta (partisipasi) anggota dan kelompoknya dalam pengelolaan irigasi diharapkan dapat dilaksanakan dengan baik sehingga dapat mengatasi permasalahan pokok dalam pemanfaatan irigasi terutama di wilayah-wilayah dengan resiko kegagalan panen padi yang diakibatkan kurangnya pasokan air pada sistem pertaniannya. Hal ini yang mendasari program Pengabdian pada Masyarakat yang dilaksanakan di Kecamatan Turatea, Kabupaten Jeneponto Sulawesi Selatan. Upaya peningkatan pengetahuan teknis dan keterampilan anggota Perkumpulan Petani Pemakai Air (P3A) yang merupakan masalah prioritas yang dihadapi terutama di Desa Pa’sanrangan Beru. Kegiatan utama yang dilaksanakan berupa pemberdayaan kelompok dan pelatihan Pengelolaan Irigasi Partisipatif (PIP) sehingga kelembagaan petani pemakai air menjadi kuat dan mandiri serta berkelanjutan. Pelatihan bertujuan memberikan pengetahuan dan keterampilan untuk dapat menunjang peningkatan produksi pertanian dan pendapatan petani itu sendiri.  Kegiatan yang dilaksanakan pada mitra berupa: (1) Pelatihan, pemberdayaan dan pembenahan kelembagaan P3A dan GP3A dalam pengelolaan irigasi, (2) Pelatihan dan praktek Pengelolaan Irigasi Partisipatif (PIP) di lapangan berupa Rapid Study, dan (3) Pendampingan kelompok dalam pengembangan manajemen irigasi partisipatif.  Hasil kegiatan menghasilkan perbaikan manajemen kelembagan kelompok, tersusunnya Panduan Pengelolaan Sistem Irigasi Partisipatif bagi kelompok dan profil lembaga P3A/GP3A di Kecamatan Turatea Kabupaten Jeneponto. Kata kunci: pengelolaan, irigasi, partisipatif, P3A, GP3A, petani 
SIFAT FISIK TANAH YANG MEMENGARUHI KEJADIAN LONGSOR DI MAKALE SELATAN: The Physical Properties of Soil that Affected the Landslide Event in South Makale Patandung, Tania; Ahmad, Asmita; Rismaneswati
Jurnal Ecosolum Vol. 9 No. 2 (2020): DESEMBER
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i2.8952

Abstract

The soil susceptibility increases in line with decreased soil stability and the ability of soil to pass water which, affected by the soil's physical characteristics. The research aims to analyze the physical properties of soil that affected landslide events in South Makale. This research using the method of comparative analysis by comparing the soil characteristic in the landslide and non-landslide areas. The soil has 6 class textures namely silt loam, loam, clay loam, silty clay loam, silty clay, and sandy clay loam. Soil Permeability ranges 0.22-6.98 cm/h (slowly-rather quickly). On the non-landslide areas, soil permeability is relatively low with values of 0.55 to 0.72cm/hour. The soil liquid limit value on the landslide area reached the value max of 67.7%, with the plasticity index value max 21.77%. The liquid limit in the non-landslide area reached a value max of 45.0% with a plasticity index value max 8.56%. Soil with silt and clay fraction dominant have a relationship with the landslide event. Soil with the silt and clay fraction dominant causes a decrease in the permeability value and affects the increase in liquid limit value and soil plasticity index.
Identifikasi Kawasan Rawan Bencana Tanah Longsor di Desa Takandeang Kecamatan Tapalang Kabupaten Mamuju: Identification of Landslide-prone Areas in Takandeang Village, Tapalang District, Mamuju Regency S.M, Fhadly; Ahmad, Asmita; Fauzan Adzima, Ahmad
Jurnal Ecosolum Vol. 14 No. 1 (2025): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v14i1.31280

Abstract

Mamuju Regency is one of the areas in West Sulawesi that has a relatively high potential for landslides on a regional scale. Landslide-prone areas on a village scale have not been widely identified. One of the villages that often experience landslides, which result in fatalities and infrastructure damage, is Takandeang Village, Tapalang District, Mamuju Regency. Determining landslide-prone areas uses a weighting method with parameters: rainfall, soil erodibility, lithology, slope gradient, and land cover. Analysis of soil characteristics: soil erodibility, texture, permeability, and C-organic. Observations of soil structure and macroscopic rocks were conducted directly in the field. The weighting of landslide parameters showed a vulnerability value of 1.2 for rainfall, 0.67 for lithology, 0.6 for soil erodibility, 0.45 for slope gradient, and 0.4 for land cover. Landslide area identification in Takandeang Village shows three classes of vulnerability level, namely low class with an area of 522.86 ha (29%) spread across most of the Takandeang Village Hamlet area, medium vulnerability class with an area of 1115.21 ha (62%) spread across most of the eastern and the western regions of Takandeang Village which are forest areas, and high vulnerability class around 172.09 ha (9%) spread across Takandeang, Salubiru, Limbeng Hamlets, a small part of Benteng Kata, Taloba and Salumati Hamlets. The landslide vulnerability level of Takandeang Village is caused by rainfall as a triggering factor, while lithology and soil erodibility are controlling factors with the same weight in accelerating landslide events.
Soil Development from Volcanic Ash Based on Different Pyroclastic Composition Ahmad, Asmita; Solle, Muchtar Salam; Lopulisa, Christianto
JOURNAL OF TROPICAL SOILS Vol. 24 No. 3: September 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i3.135-140

Abstract

Potential volcano in several provinces in Indonesia played a significant role in the formation and quality of soil development. Soils that developed from the volcanic ashes often thought to contribute greatly to improve soil fertility, without regard to the nature and composition of the volcanic ash produced. Volcanic ash generated from the results in volcanic activity has a different composition, there are basaltic, andesitic and granitic, thereby affecting the process of formation and characteristics of the soil. The Objective of this study is to determine the soil development from different types of pyroclastic generated from Lokon volcano in North Sulawesi. The coordinates of research was in 1o 21' 18.0" N and 124o 49' 20.2"E. this research used ARL Quant X (EDXRF Analyzer) for X-Ray Fluorescence (XRF), Shimadzu XRD-7000 for  X-Ray Diffractometer (XRD), geology map (scale 1:250,000), topographic map (scale 1:50,000), XRD software, GIS 10.3 software. Soil analysis for texture, pH, C-Organic, and cation exchange capacity (CEC). There are two types of pyroclastic as the source of soil development from volcanic ash, there are; 1) basaltic pyroclastic with 43.26% Si02 that are resulted from the first magmatic eruption and 2) andesitic pyroclastic with 5.09% Si02 that are resulted from the late magmatic eruption. Basaltic pyroclastic contains Fe 37.63%, Al 11.35%, Ca 13.17% and Mg 5.69%, while andesitic pyroclastic contains Fe 38.35%, Al 6.87%, and Ca 8.61%. Rainfall ranges from 2000-3500 mm/yr helped the soil formation and influenced the character of the soil, such as sandy loam of soil texture, 3.08% of soil C-organic content, 23.24 cmol+/kg of CEC and 148.93 cmol+/kg of clay CEC. Clay minerals content of the soil is vermiculite, kaolinite and, halloysite. Cation supply from basaltic pyroclastic influenced the formation of vermiculite mineral, whereas andesitic pyroclastic more influences the formation of the kaolinite mineral. Formation of soil texture with a predominance of the sand fraction is more influenced by the type of andesitic pyroclastic that more resistant to weathering processes.Keywords: Soil; volcanic ash; pyroclastic; vermiculite; kaolinite
Co-Authors AA Sudharmawan, AA Adzima, Ahmad Fauzan Alamudi, Zakina Fauzi Andi Detti Yunianti Annisa, Istiqama Maulidina Ardani, Nova Tries Asri Jaya Balqis Nur Aisyah Burhan, Moh. Junaedy Chairuddin, Zulkarnain Darmawan Salman Djamaluddin, Magfirah Fauzan Adzima, Ahmad Firmansyah Firmansyah Gani, Adiet Nurholis Al Hamid Umar Husain, Ratna Idul, Idul Ikhwana, Nur Ilham Alimuddin Imran, A M Jayadi, Muh Juita, Nirmala Kasmiyati Kasim Khairul Anami, Muhammad Fitrah Laban, Sartika Lias, Syamsul Arifin Lopulisa, Christianto Madjidi, Maksum Marupah, . Meinarni Thamrin Meutia Farida Muchtar S Solle Muchtar S Solle, Muchtar S Muh. Ansar, Muh. Muhammad Fitrah Khairul Anami Muhammad Kadir Mutmainna, Mutmainna Nurhikmayani, Risky Patandung, Tania Putra Pangestu, Kidung Rahmawati, Rahmawati Rismaneswati Rohaya Langkoke S, Sulfadli S.M, Fhadly Safruddim Safruddim Setiadi, Ahmad Tirta Sirimorok, Nurhady Solle, Muchtar Salam Syah, Ashar Ramadan Widaningsih, Yuyun Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Zakina Fauzi Alamudi