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All Journal Journal of Applied Agricultural Science and Technology Jurnal Penelitian Kehutanan Wallacea
Chania, Lady
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Agriculture, Biological Sciences & Forestry

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Sustainable Competitiveness of Red Onion through Collective Action of Farmers in West Sumatra Silfia, Silfia; Nicolas, Amelia R.; Fitri, Elfa Rahmi; Yulita, Resa; Chania, Lady
Journal of Applied Agricultural Science and Technology Vol. 9 No. 3 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i3.372

Abstract

The competitiveness and sustainability of agriculture are closely related to small-scale farming efforts. This research contributes to the transformation of individual farmers into a collective for small-scale farm enterprises, which face constraints necessitating the development of synergies. This is particularly relevant for red onion farmers in the high plains of the Gumanti Valley, Western Sumatra. The research questions are: How do the community's strengths sustain competitiveness and sustainability? What strategies can be formulated to enhance these aspects for the red onion farming community? The study aims to explore the strengths of onion farmers' communities and strategies to reinforce them, thereby promoting sustainability and competitiveness. Conducted in the agricultural area of the Gumanti Valley district of Solok Province from 2019 to 2020, this descriptive research employs CEEI, SWOT, and QSPM methodologies. The findings indicate that the competitiveness and sustainability of the red onion business have improved, with increases observed in collective innovation, supply chain management, and access to economic resources and opportunities, leading to enhanced income accumulation and profit sharing.
Ecological Disaster in Northern Sumatra: How Extreme Rainfall and Land-Cover Disturbance Triggered Widespread Flash Flooding Nasri, Nasri; Nursaputra, Munajat; Arif, Abdur Rahman; Dwiyani, Risye; Chania, Lady; Agastya, Ida Bagus Oka; Arif, Dian Adhetya Arif
Jurnal Penelitian Kehutanan Wallacea Vol. 14 No. 2 (2025)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/jpkwallacea.v14i2.48907

Abstract

In November 2025, Northern Sumatra experienced one of the most extreme flood disasters in recent history, triggered by a rare combination of sustained high-intensity rainfall and long-term land-cover disturbance. Using satellite-based rainfall estimates, historical rainfall records, and land-cover change analysis, this study examines the spatial and temporal dynamics of the event. The rainfall produced over 950 mm within four days, with daily accumulation exceeding 390 mm and hourly peaks surpassing 40 mm/hr. Statistical analysis using the Generalized Extreme Value (GEV) distribution estimated a return period of approximately 192 years for the daily maximum. Land-cover analysis revealed extensive deforestation between 1990 and 2024, including in designated protection and conservation forest zones. Flood impacts were concentrated in watersheds with high forest loss and recent land disturbance, particularly in Aceh and North Sumatra. This study highlights how compounding hydroclimatic extremes and upstream land degradation can significantly amplify flood risk. The findings underscore the importance of integrating forest conservation and multi-day rainfall indicators into regional flood risk assessments and early warning systems.
Co-Authors Abdur Rahman Arif, Abdur Rahman Agastya, Ida Bagus Oka Amelia R. Nicolas, Amelia R. Arif, Dian Adhetya Arif Dwiyani, Risye Fitri, Elfa Rahmi Munajat Nursaputra, Munajat Nasri Nasri, Nasri Silfia Silfia, Silfia Yulita, Resa