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All Journal Journal of Degraded and Mining Lands Management Jurnal Rekayasa Sipil Seminar Nasional Lahan Suboptimal
Kusairi, Muhammad
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Engineering Transportation Other

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Analisis Neraca Air Lahan Gambut pada Kesatuan Hidrologis Gambut Pulau Rupat Provinsi Riau Kusairi, Muhammad; Sutikno, Sigit; Yusa, Muhamad; Hendri, Andy; Rinaldi, Rinaldi
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 “Revital
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Kusairi, M., Sutikno, S., Yusa, M., Hendri, A., Rinaldi, R. (2024). Analysis of peatland water balance in the peatland hydrological unit Pulau Rupat, Riau Province. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang 21 Oktober 2024. (pp. 649–658).  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Peatlands are the largest place that can be used as water storage. Peatlands consist of 90% water and 10% organic matter, most of which is carbon. With a very large water content, water balance analysis is very appropriate to be used to determine the characteristics of PHU Pulau Rupat. Water balance analysis is a very important analysis to see the condition of the volume of water available spatially and temporally. This study aimed to analyze the condition of the water balance in PHU Pulau Rupat. The analysis is based on the condition of the water balance of each Sub PHU using the MONALAGA water balance model. Based on this method, it was found that PHU Pulau Rupat has two periods of deficit conditions each year. This condition is in accordance with the characteristics of the dry season in Riau Province. The difference between surplus and deficit was -80.46 million m3 in 2014, this condition is in accordance with the presence of 1,216 hotspots in sub PHU-2. The deficit month period that is prone to fires occurs in January to March, then in the period from June to August. Based on these conditions, it can be the basis for water management in controlling peatland fire disasters. So that the level of fire vulnerability in PHU Pulau Rupat can be reduced through collaboration between parties in dealing with deficit months.
Mapping peat thickness and groundwater level using a portable electromagnetic instrument in Indragiri Hilir, Riau, Indonesia Sutikno, Sigit; Yusa, Muhamad; Andy Hendri; Kusairi, Muhammad; Ahmad Muhammad; Nurul Qomar
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7431

Abstract

Peatlands play a crucial role in the global carbon cycle, water regulation, biodiversity conservation, research, education, and recreation. Peat thickness and groundwater level (GWL) are key parameters for optimizing these peatland functions; therefore, mapping peat thickness and GWL quickly, accurately, and cost-effectively is essential. This study applied a geophysical survey using a portable electromagnetic instrument to estimate peat thickness and GWL. The instrument, which is simple to operate and wirelessly connected to a mobile phone, enables rapid measurement and visualization of subsurface resistivity. A research site in Indragiri Hilir Regency, Riau Province, Indonesia, was picked up as an experiment site to test the instrument. Three transects with measurement path lengths of 100 m each and a distance of about 1.4 km each were designed for the experiment. To validate the resistivity data against subsurface stratigraphy, core sampling was conducted at three points along each transect. The results demonstrated that the electromagnetic method effectively identified the interface between peat soil and the underlying marine clay. Analysis revealed that the resistivity values for unsaturated peat, saturated peat, and saturated clay were 68-81 ohm m, 75-96 ohm m, and 82-115 ohm m, respectively. These findings suggest that GWL mapping and peat stratigraphy characterization can be accurately achieved using this method.
ANALISIS LUAS PEMBASAHAN LAHAN AKIBAT PENYEKATAN KANAL UNTUK RESTORASI GAMBUT Sutikno, Sigit; Gunawan, Haris; Budisusanti, SPM; Askary, Muhammad; Kusairi, Muhammad
Jurnal Rekayasa Sipil Vol. 21 No. 1 (2025)
Publisher : Civil Engineering Departement, Andalas University

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Abstract

Menjaga tinggi muka air tanah (TMAT) merupakan kunci dalam melindungi dan merestorasi ekosistem gambut. Untuk menjaga TMAT, pemerintah Indonesia bersama berbagai pemangku kepentingan telah membangun sekat-sekat kanal sebagai bagian dari program pembasahan kembali (rewetting) lahan gambut yang terdegradasi untuk tujuan restorasi. Kegiatan pembasahan kembali dinilai optimal apabila luas lahan gambut yang terbasahi dapat dimaksimalkan dengan biaya pembangunan sekat kanal seminimal mungkin. Namun, efektivitas dan luas area yang berhasil dibasahi akibat pembangunan sekat kanal tersebut hingga kini belum diketahui secara pasti dan perlu dikaji lebih lanjut. Penelitian ini bertujuan menganalisis dampak penyekatan kanal terhadap luas area pembasahan lahan gambut. Penelitian dilakukan melalui analisis dan pemantauan lapangan terhadap dampak hidrologis di beberapa Kesatuan Hidrologis Gambut (KHG) di Provinsi Riau, yaitu KHG Pulau Tebing Tinggi, KHG Sungai Siak–Sungai Kampar, KHG Sungai Kampar–Sungai Gaung, dan KHG Sungai Gaung–Batang Tuaka. Luas area terdampak dianalisis menggunakan sistem informasi geografis (SIG). Hasil penelitian menunjukkan bahwa dampak pembasahan dari setiap sekat kanal individu berkisar antara 15 hingga 35 hektar. Variasi luas dampak ini sangat dipengaruhi oleh kondisi hidrotopografi, tutupan lahan, sifat material gambut, geometri kanal, dan kinerja sekat kanal
Co-Authors Ahmad Muhammad Andy Hendri, MT, Andy Askary, Muhammad Budisusanti, SPM Haris Gunawan Muhamad Yusa Nurul Qomar Rinaldi Rinaldi Sutikno, Sigit