Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia

Besri Nasrul; Muhamad Yusa; Idwar Idwar; Nurhidayati Nurhidayati; Arman Effendi; M. Amrul Khoiri; Nurhayati Nurhayati

doi:10.18393/ejss.1920872

Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia

Abstract

Peat depth reflects the humification process and the diversity of physical properties. The study examined vertical physical properties and their dynamic relationship with peat depth in an ombrogenous peat dome system. Observations were made on five profiles representing a variety of land elevations. These profiles are arranged sequentially from the edge of the dome to its peak. Profile locations were extracted from DTM LiDAR, while thickness was measured using an Eijkelkamp drill. Profile descriptions were made at every 20 cm interval above the drill bit, totaling 123 layers. Laboratory analysis included moisture content (gravimetric), bulk density/BD (ring), and fiber content (syringe). Statistical analysis employed Pearson correlation and simple linear regression at a 5% significance level. Vertical autocorrelation of peat properties is expected to be evident in adjacent peat depth layers. Profile P3 at the top of the dome I showed the strongest and most significant relationship, with the distributions of fiber content, moisture content, and BD strongly influenced by depth. A relatively deeper groundwater table promotes greater surface aeration and enhanced humification. Profile P4 in dome II also shows a significant relationship, indicating the role of BD in shaping the vertical distribution of peat. In contrast, the low coefficients of determination for P1, P2, and P5 indicate that variations in moisture content and BD are influenced more by groundwater-level fluctuations than by depth alone, whereas fiber content remains strongly correlated with depth. Although Profiles P4 and P5 are located within the same dome, they display different vertical patterns. At Profile P4, moisture content and fiber content do not vary systematically with depth. This deviation is attributed to intensive mixed-crop cultivation, which disrupts the peat dome structure and weakens the natural relationship between depth and peat physical properties.

Keywords

Supporting Institution

Research and Public Services Agency (LPPM), Universitas Riau

Project Number

847/UN.19.5.1.3/PT.01.03/2020

Thanks

The authors are grateful for the funding from ADB-AKSI LN 3749-INO and the Research and Public Services Agency (LPPM), contract no. 847/UN.19.5.1.3/PT.01.03/2020, Universitas Riau, which made this research possible.

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Details

Primary Language

English

Subjects

Soil Sciences and Plant Nutrition (Other)

Journal Section

Research Article

Authors

Besri Nasrul ^* This is me
0000-0002-5018-1271
Indonesia

Muhamad Yusa This is me
0000-0001-9748-6307
Indonesia

Idwar Idwar This is me
0009-0006-6604-1886
Indonesia

Nurhidayati Nurhidayati This is me
0009-0009-5366-3485
Indonesia

Arman Effendi This is me
0000-0002-5788-5773
Indonesia

M. Amrul Khoiri This is me
0009-0000-5771-7924
Indonesia

Nurhayati Nurhayati This is me
0000-0003-3897-2748
Indonesia

Publication Date

June 30, 2026

Submission Date

July 7, 2025

Acceptance Date

March 24, 2026

Published in Issue

Year 2026 Volume: 15 Number: 3

DOI

https://doi.org/10.18393/ejss.1920872

IZ

https://izlik.org/JA27WZ26DR

Cite

RIS / Bibtex

APA

Nasrul, B., Yusa, M., Idwar, I., Nurhidayati, N., Effendi, A., Khoiri, M. A., & Nurhayati, N. (2026). Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia. Eurasian Journal of Soil Science, 15(3), 325-334. https://doi.org/10.18393/ejss.1920872

AMA

1.Nasrul B, Yusa M, Idwar I, et al. Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia. EJSS. 2026;15(3):325-334. doi:10.18393/ejss.1920872

Chicago

Nasrul, Besri, Muhamad Yusa, Idwar Idwar, et al. 2026. “Vertical Dynamics of Ombrogenous Peat Physical Properties on Bengkalis Island, Indonesia”. Eurasian Journal of Soil Science 15 (3): 325-34. https://doi.org/10.18393/ejss.1920872.

EndNote

Nasrul B, Yusa M, Idwar I, Nurhidayati N, Effendi A, Khoiri MA, Nurhayati N (June 1, 2026) Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia. Eurasian Journal of Soil Science 15 3 325–334.

IEEE

[1]B. Nasrul et al., “Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia”, EJSS, vol. 15, no. 3, pp. 325–334, June 2026, doi: 10.18393/ejss.1920872.

ISNAD

Nasrul, Besri - Yusa, Muhamad - Idwar, Idwar - Nurhidayati, Nurhidayati - Effendi, Arman - Khoiri, M. Amrul - Nurhayati, Nurhayati. “Vertical Dynamics of Ombrogenous Peat Physical Properties on Bengkalis Island, Indonesia”. Eurasian Journal of Soil Science 15/3 (June 1, 2026): 325-334. https://doi.org/10.18393/ejss.1920872.

JAMA

1.Nasrul B, Yusa M, Idwar I, Nurhidayati N, Effendi A, Khoiri MA, Nurhayati N. Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia. EJSS. 2026;15:325–334.

MLA

Nasrul, Besri, et al. “Vertical Dynamics of Ombrogenous Peat Physical Properties on Bengkalis Island, Indonesia”. Eurasian Journal of Soil Science, vol. 15, no. 3, June 2026, pp. 325-34, doi:10.18393/ejss.1920872.

Vancouver

1.Besri Nasrul, Muhamad Yusa, Idwar Idwar, Nurhidayati Nurhidayati, Arman Effendi, M. Amrul Khoiri, Nurhayati Nurhayati. Vertical dynamics of Ombrogenous peat physical properties on Bengkalis island, Indonesia. EJSS. 2026 Jun. 1;15(3):325-34. doi:10.18393/ejss.1920872