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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Media Komunikasi Geografi AKADEMIKA Jurnal Wilayah dan Lingkungan JURNAL SPASIAL Jurnal Agribisnis Jurnal Geocelebes IJEMS (Indonesian Journal of Environmental Management and Sustainability) J SIG (Jurnal Sains Informasi Geografi) Jurnal Agronomi Tanaman Tropika (JUATIKA) Indonesian Journal of Electrical Engineering and Computer Science Journal of Empowerment Community Jurnal Abdimas Dosma Jurnal Azimut Jurnal Abdimas Dosma
Ivan Taslim
Program Studi Geografi Uiversitas Muhammadiyah Gorontalo
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Nursing Public Health Social Sciences Other

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Soil Fertility Assessment and Spatio-Temporal Analysis of Paddy Field Change In Gorontalo Under LP2B Policy Yusriyah Atikah Gobel; Merita Ayu Indrianti; Aditya Djaini; Ivan Taslim
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.4998

Abstract

This study quantitatively assessed the intrinsic soil quality and spatio-temporal dynamics of paddy field conversion in Gorontalo Regency between 2017 and 2023, specifically under the Sustainable Food Agricultural Land (LP2B) policy. The fundamental inquiry of this research concerns the real efficacy of passive regulatory policy instruments in protecting agricultural natural capital against intense development pressures. Utilizing Sentinel satellite imagery and the Random Forest algorithm within the Google Earth Engine (GEE), detailed change detection and zonal analyses were performed. This was augmented by empirical field sampling and laboratory analysis to quantify the mean levels of critical soil fertility indicators, including Organic Carbon (OC) and Total Nitrogen (TN), in protected and newly established areas. A significant policy paradox was identified. While the regency experienced a net increase of 4,226.54 ha in total paddy field area, the legally protected LP2B zones suffered an undeniable net loss of 23.76 ha. Crucially, the soils lost from LP2B areas were intrinsically superior, exhibiting significantly higher mean levels of OC (3.15% vs. 1.88%) and TN (0.28% vs. 0.15%) compared to the newly established areas outside the LP2B boundary, which utilized lower-quality, marginal land. The most important findings highlight that the policy has failed to preserve the highest quality land, resulting in resource substitution (quality for quantity). This study strongly recommends the adoption of spatially targeted incentive strategies and the integration of a Weighted Land Loss Metric, based on soil fertility parameters, into policy monitoring to ensure the long-term sustainability and resilience of regional food production systems.
Co-Authors Aditya Djaini Aditya Djaini Ahmad Fudholi Ahmad Syamsu Rijal Anggun Farwati Abdullah Aryadi Nurfalaq Ayuba, Sri Rahayu Bahuwa, Kardina Dewi Rahmawaty Isa Djibran, Moh. Muchlis Dwi Randayani Butulipu Elpin Ibrahim Fauzul Chaidir A. Usman Fazleena Musthafa, Mariyam Fitrotun Aliyah Herman Saleh Intan Noviantari Manyoe Jamaluddin Jamaluddin Jaya, Risman Kamaruzzaman Sopian Kamaruzzaman Sopian Koto, Arthur Gani Masrin Melangi Merita Ayu Indrianti Moh Muchlis Djibran Mohamad Mokoginta Mokoginta, Meity M Muh. Firyal Akbar Muhammad Adam Marnas Muhammad Ridho Kayambo Muhammad Zohri Muhammad Zohri, Muhammad Muhardi Mustafa Mustapha, Muslizainun Nurhajidah Muhsin Nurul Shahirah Binti Rukman Nurul Shahirah Binti Rukman Nurul Shahirah Binti Rukman Permana, Aang Panji Prasetyawati Umar, Emi Ratna Sari Madusila Ronal Hutagalung Sambas Basuni Santikayasa, I Putu Sartika Moha Siti Suhartini Napu Siti Suhartini S. Napu Sopian, Kamaruzzaman Sri Rahayu Ayuba Tedy Harianto Salama Titin Umi Rahayu Uce Lestari Uce Lestari Ulfan R. Ake Wa Ode Emiria Srikandi Ndangi Yasin Septian Yusof Othman, Mohd Yusriyah Atikah Gobel