Identifikasi Perubahan Nilai Resistivitas Tanah Gambut Akibat Penyemprotan Herbisida Sistem Kontak Menggunakan Metode Geolistrik Resistivitas Konfigurasi Dipole Dipole
DOI:
https://doi.org/10.26418/pf.v3i3.13602Abstract
Telah dilakukan penelitian identifikasi perubahan nilai resistivitas tanah gambut akibat penyemprotan herbisida sistem kontak. Resistivitas tanah gambut diukur menggunakan metode geolistrik resistivitas konfigurasi Dipole-dipole. Pengambilan data dilakukan pada skala laboratorium dengan panjang lintasan 2 (dua) meter dan jarak antar elektroda 0,2 meter. Pengukuran resistivitas tanah gambut dilakukan dengan dua tahap yaitu sebelum dan sesudah diberikan herbisida sistem kontak. Data resistivitas tanah gambut dipetakan dalam bentuk 2 (dua) dimensi menggunakan perangkat lunak Res2Dinv dengan variasi rentang waktu dimulai dari 4 jam, 24 jam dan 7 hari. Hasil penelitian menunjukkan nilai resistivitas tanah gambut sebelum diberikan perlakuan 25,3-108 Ωm sedangkan nilai resistivitas tanah gambut pada rentang 4 jam setelah diberi perlakuan berkisar 10-76,6 Ωm, pada rentang 24 jam berkisar 0,793-48 Ωm dan pada rentang 7 hari berkisar 13,4-70,6 Ωm. Perubahan resistivitas tanah gambut yang paling signifikan terjadi pada rentang waktu 24 jam setelah penyemprotan.
Kata kunci : Resistivitas, herbisida, tanah gambut.
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Date: 24-05-2023
Prisma Fisika
Email: prismafisika@physics.untan.ac.id
