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All Journal Natural Science: Journal of Science and Technology Jurnal Bios Logos Warta Rimba Biocelebes KOVALEN: Jurnal Riset Kimia Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Journal of Health and Nutrition Research Mitra Sains Berita Biologi
Ramadanil Pitopang
Jurusan Biologi Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Tadulako Kampus Bumi Tadulako Tondo Palu, Sulawesi Tengah
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health

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Physical and Chemical Characteristics of Soil in the Habitat of Gymnostoma rumphianum (Miq.) L.A.S. Johnson in Tojo Una-Una Regency, Central Sulawesi Rahmawati; Yusran; Zulkaidhah; Retno Wulandari; Rukmi; Ramadanil Pitopang
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.15120

Abstract

Sulawesi, particularly the Wallacea region, has a unique yet extreme ultramafic ecosystem for vegetation growth due to nutrient limitations and high heavy metal concentrations. This study aims to analyze the characteristics of the physical and chemical properties of the soil in the habitat of Gymnostoma rumphianum (Miq.) L.A.S. Johnson in Tojo Una-Una Regency, Central Sulawesi. The study was conducted in Betaua and Podi Villages by dividing the locations based on distance from the river flow. Physical parameters analyzed included bulk density, soil texture, and permeability, while chemical parameters included N, P, K, pH, organic C, C/N ratio, and electrical conductivity (DHL). The results showed that the soil texture in Betaua Village was dominated by sand fractions, while Podi Village was dominated by silt fractions due to the influence of river sedimentation. Chemically, the soil is alkaline (pH 8.05–8.28) with low to very low nitrogen and phosphorus content, but has moderate potassium availability. The presence of G. rumphianum, an actinorhizal plant capable of fixing nitrogen, is a key factor in the adaptation and sustainability of vegetation in this marginal land. This study concludes that despite extreme edaphic constraints, soil-plant interactions and local environmental dynamics such as fluviality significantly determine the structure of the ultramafic habitat in the region.
Co-Authors Achmad Ramli Adhil, Adhil Alvionita Alvionita Andi Saifah Andi Wirdani Pettalolo Annawaty Annawaty, Annawaty Ardiputra, Muh Akbar Ariyanti Ariyanti Bambang Sardi Bratawinata, Ariffien Dandy Prayoga Eka Putri Dayanti Endang Lestari Eny Yuniati Erwin Taslim Evanjeli Evanjeli Fat Hulia Fitriani Dg. Kalla Grisnayanti Guli, Musjaya Hijrah Hijrah I Nengah Suwastika Iis Salihat Imran Rachman Inayanti, Fanny Is Patuh Hallianah Kambuno, Iring R. F. Kurniawan P. Bandjolu M Saleh, M Fajri Ramadan Mochammad Hatta Moh Iqbal Moh Iqbal Moh. Iqbal, Moh. Mohammad Ihsan Mustafid Rasyiid Muthmainnah Muthmainnah Naharuddin Naharuddin Neneng Sukmawati Nunung Safriana Nur Afiyah Labambe Nurwijayanti Orryani Lambui Paserang, Asri P. Pratama, Mohammad Yant Prawiro, Sumarno Reto Prismawiryanti Prismawiryanti PUTI ANDALUSIA BANILAI PUTI ANDALUSIA SARIGANDO Banilai Rahma Rahma Rahmatillah Rahmawati Rahmawati, Nurul Dina Ramawangsa, Panji Retno Sari Retno Wulandari Risma Risma Rizaldi, Reza Roland P P Ahmad Rudy, Sri Utami Rukmi Rusmin Rusmin Saleh, M. Fajri R.M. Samsurizal, M. Sulaeman Sari, Riska Satria Dhika Saputra Sigit Hardwinarto, Sigit Stevani Tamawiwi Syam, Nurfadilah Umrah Umrah Wahyu Harso Yayang Istikana Yusran , Yusran Yusran Yusran Yusran Yusran Zubair Zubair Zulkaidhah