Journal of Degraded and Mining Lands Management
Vol 10, No 2 (2023)

The influence of land cover variation on soil erosion vulnerability around coal mining concession areas in South Borneo

Supandi Supandi (PT Borneo Indobara)
Yudha Hardiyanto Eka Saputra (PT Borneo Indobara)
Yusanto Nugroho (Faculty of Forestry, Universitas Lambung Mangkurat)
Suyanto Suyanto (Faculty of Forestry, Universitas Lambung Mangkurat)
Gusti Syeransyah Rudy (Faculty of Forestry, Universitas Lambung Mangkurat)
Pandu Yudha Adi Putra Wirabuana (Faculty of Forestry, Universitas Gadjah Mada)



Article Info

Publish Date
01 Jan 2023

Abstract

The availability of information about soil erosion vulnerability is necessary as a primary consideration to determine the effort of soil conservation, particularly in the coal mining area. This study aimed to estimate the potential risk of soil erosion from land cover variation in a coal mining concession site in South Borneo. Data were taken from 18 stations of soil erosion monitoring which were evenly distributed in each land cover. Soil erosion vulnerability was quantified using the Universal Soil Loss Equation (USLE) method. The comparison mean of soil erosion among land cover types was evaluated using the Kruskal-Wallis test and followed by the Nemenyi test with a significant level of 5%. Results found that the potential risk of soil erosion was significantly different among land covers (p<0.05). The highest soil erosion vulnerability was noted in the reclamation area of 1,012.3 t ha-1 year-1, while the lowest risk of soil erosion was observed in plantation forests of 47.9 t ha-1 year-1. Surprisingly, the potential risk of soil erosion in natural forests was four times higher than in oil palm plantations. Besides being located in hilly areas with high slope levels, the vegetation density in natural forests was relatively low. However, our study recorded there were two critical factors that highly correlated to soil erosion vulnerability, i.e., soil erodibility (R = 0.89; p<0.05) and slope length and steepness (R = 0.85; p<0.05).

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Journal Info

Abbrev

jdmlm

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

Journal of Degraded and Mining Lands Management is managed by the International Research Centre for the Management of Degraded and Mining Lands (IRC-MEDMIND), research collaboration between Brawijaya University, Mataram University, Massey University, and Institute of Geochemistry, Chinese Academy of ...