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Journal of Degraded and Mining Lands Management
Published by Universitas Brawijaya
ISSN : 2339076X     EISSN : 25022458     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
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 Sciences-China Papers dealing with result of original research, and critical reviews on aspects directed to the management of degraded and mining lands covering topography of a landscape, soil and water quality, biogeochemistry, ecosystem structure and function, and environmental, economic, social and health impacts are welcome with no page charge
Arjuna Subject : -
Articles 1,551 Documents
 149   150   151   152   153 
Spatial distribution of landslide potentials and landslide vulnerability in Sukawana and Awan Villages, Kintamani District, Bangli Regency, Bali Province Sumarniasih, Made Sri; Dewi, I Gusti Ayu Sintya; Diara, I Wayan
Journal of Degraded and Mining Lands Management Vol. 10 No. 4 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.104.4721

Abstract

Landslide is one of the disasters that often occurs in Indonesia. Bangli is one of the areas in Bali with a high potential for landslides, especially in Kintamani. This study aimed to identify the potential and vulnerability of landslides in Sukawana and Awan Villages, Kintamani District, Bangli Regency. This study used survey and scoring methods according to the Natural Disaster Center at Gadjah Mada University for the parameters that cause landslides, namely, landform, rainfall, slope, geological structure, land use, and soil type. The landslide potential in Sukawana Village is low landslide potential with an area of 71.97 ha (1.81%) in Banjar Kubusalya, a medium potential with an area of 2,198.07 ha (55.30%) in Banjar Kubusalya, Banjar Sukawana and Banjar Paketan and high potential with an area of 932.81 ha (23.47%) located in Banjar Kuum and Banjar Sukawana. Awan Village has medium potential with an area of 772.20 ha (19.43%). For areas with high vulnerability, settlements are 110.96 ha (69.97%) in Sukawana Village, and the road network is dominated by local roads along 28.82 km (34.81%), which are in Sukawana Village.
Spatio-temporal of landslide potential in upstream areas, Bali tourism destinations: remote sensing and geographic information approach Diara, I Wayan; Wiradharma, I Ketut Agus Wahyu; Suyarto, R; Wiyanti, W; Saifulloh, Moh
Journal of Degraded and Mining Lands Management Vol. 10 No. 4 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.104.4769

Abstract

Upstream Bali has tourist destinations with beautiful natural panoramas such as mountains, forest areas, and lakes. Characteristics of the area with steep slopes, high rainfall, and altitude above 1,500 masl. The area is inseparable from the threat of disasters, such as landslides, especially in the Baturiti District. This area often experiences landslides but has not been mapped spatially. Mitigation efforts are needed to minimize the impact of landslides. This study aimed to determine the potential for landslides and their distribution in different periods, namely 2000, 2010, and 2020. The scoring method considers four parameters: rainfall, slope, soil type, and vegetation density, using ArcGIS 10.8 Apps. Parameters extracted from remote sensing data include Landsat with ETM+ and OLI sensors, rainfall from the CHIRPS satellite, and slopes from DEMNAS. Geographic Information System (GIS) data includes soil types. Another role of GIS is to quantify raster data to build a landslide potential prediction model. Baturiti Subdistrict has a low to high potential for landslides, which are administratively distributed in Candikuning, Baturiti, Antapan, Batunya, and Bangli villages. The landslide potential in the high category in 2000, 2010, and 2020 respectively, is 70.12 ha (1%), 597.05 ha (5%), and 39.12 ha (1%). Based on the findings of this study, the leading cause of landslides is high rainfall followed by reduced vegetation density. Other factors include steep slopes (>45%) and soil types of Andosol and Regosol.
Index of contamination/pollution factor, geo-accumulation and ecological risk in ex-gold mining soil contaminated with mercury Maulana, Amsar; Harianti, Mimien; Prasetyo, Teguh Budi; Herviyanti, Herviyanti
Journal of Degraded and Mining Lands Management Vol. 10 No. 4 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.104.4791

Abstract

Mercury is a hazardous contaminant, and it is necessary to clean up Hg contamination on an ongoing basis. However, Hg contamination and ecological risks have not become a particular concern in the community. As a first step, this study evaluated the environmental risk assessment of Hg contamination/pollution in ex-gold mining soil. The results showed that the average total Hg in ex-gold mining soil was 4.11 and 4.25 mg kg-1 for depths 0-20 and 20-40 cm, respectively, greater than the threshold limit set nationally (0.3 mg kg-1) and internationally (0.05-1 mg kg-1). The index of contamination/pollution factor and geo-accumulation of Hg were 13.70 and 1.39 at a depth of 0-20 cm, and 14.16 and 1.47 at a depth of 20-40 cm. The prospective ecological risk index and risk quotient were 5.48E2 and 1.03E2 at a depth of 0-20 cm, and 5.66E2 and 1.06E2 at a depth of 20-40 cm. The contamination/ pollution factor and ecological risk index indicate high Hg contamination and pollution in the soil. Therefore, appropriate technology is needed for the remediation process of ex-gold mining soil that considers all elements to a user-friendly level, such as amelioration technology with heavy metal inactivation techniques.
Durability characterization of landslide material from mudrock of Jatiluhur formation Misbahudin, Misbahudin; Pardede, Ismail Suny
Journal of Degraded and Mining Lands Management Vol. 10 No. 4 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.104.4801

Abstract

The infrastructure project has many lies on the mudrock foundation. Some reports in Hambalang, West Java, Indonesia, state the engineering problem related to landslides and foundation failure due to mudrock material's existence. The mudrock originated from Jatiluhur Formation. The problem is also present in slope stability, such as surface erosion and landslide on the many slopes. Landslide material from mudrock material has easily broken into smaller fragments. This research used the wet-dry cycle to evaluate mudrock's durability to weathering on a laboratory scale. The preparation of the test samples in the form of intact rock with a weight of 450-550 grams and then open exposure under sun dry was conducted. The sample was then immersed in water for 24 hours. ISRM physical properties were conducted and correlated with statistical analyses to determine factors affecting the mudrock's durability. From the index of durability, mudrock in Jatiluhur Formation in this research area had various degrees of disintegration. The siltstone samples remained intact until the 15th cycle, unlike shale and claystone samples had expressed low durability and rapid disintegration rate. A series of investigation durability characteristics of mudrock in this study can be applied to other samples and formations that are quantitively and qualitatively.
Heavy metal contamination of Batanghari River, Jambi, Indonesia: determination based on sediment enrichment factor value Badariah, Badariah; Sukmawati, Nisa; Heraningsih, Sarah Fiebrina; Rainiyati, Rainiyati; Riduan, Ahmad; Putri, Riski Dwimalida
Journal of Degraded and Mining Lands Management Vol. 10 No. 4 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.104.4761

Abstract

Batanghari River is the primary source of water for the people of Jambi. Batanghari River’s condition nowadays is worrying because its color is no longer clear. This research focused on determining the content of heavy metals in the Batanghari River's water and sediment. The conducted analysis is an ICP-MS analysis to determine the level of heavy metal (Cu, Cr, Co, Cd, Hg), and an enrichment factor calculation is conducted to determine the source of pollution. The enrichment factor value from the Batanghari River sediment sample declined with the following sequence Cd>Hg>Cu>Cr>Co, in 10 pinpoint locations. These indicate a high degree of anthropogenic activities along the Batanghari River which become the source of heavy metals entering the Batanghari River. The average concentration of heavy metals in the Batanghari River showed that the metal concentrations of Cd, Cu, and Hg are higher than the quality standards that have been set, whereas the metal concentrations of Cr and Co are still by the quality standards that have been set in PP 22 the year 2021.
The concentration of heavy metals and pollution indices in a selected abandoned mine in the State of Pahang, Malaysia Abdullah, Mohd Zahari; Sulaiman, Fazrul Razman; Zainuddin, Nur Sha’adah; Ab Manan, Wan Noni Afida; Ahmad, Nazree
Journal of Degraded and Mining Lands Management Vol. 10 No. 4 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.104.4829

Abstract

Abandoned iron ore mining soil was analyzed for its metal contamination. Pollution indices were calculated and used to examine the potential of the area to be polluted by the metals. The samples were collected in triplicate from ten sampling points spread throughout the mining area. The energy dispersive X-ray fluorescence (EDXRF) analytical method was used to determine the concentrations of Cd, Cu, Co, Pb, Zn, Fe, Cr, Ni, and Mn. The order of the mean metal concentrations (mg/kg) in soil samples taken at random from ten locations near the chosen iron ore mines is Fe, Mn, Cr, Pb, Cu, Zn, Co, Ni, and Cd. The Geoaccumulation Index (Igeo) results showed that the area was moderately contaminated, especially with Fe, whereas the results of the Enrichment Factor (EF) and the Quantification of Contamination (QoC) showed that metal enrichment was strongly related to anthropogenic origins. EF and Quantification of Contamination (QoC) results revealed that metal enrichment was strongly related to anthropogenic origins. The ecological risk based on individual metals followed the following order: Cd > Pb > Co > Cu > Cr > Fe > Ni > Mn > Zn, and the average Potential Ecological Risk Index (PERI) was recorded at the severely high-risk level. The findings clearly showed that the study area might pose a serious threat to environmental health.
Physiological responses and heavy metal detoxification potential of soil bacteria from bioslurry and Lapindo mud Qardhawiy, Hafanie Firdaus; Arbani, Alya Mufida; Lubis, Susi Mulianti; Fitriana, Ilma; Sanjaya, Wilhelmus Terang Arga; Santosa, Dwi Andreas
Journal of Degraded and Mining Lands Management Vol. 13 No. 4 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.134.11289

Abstract

Heavy metal pollution, especially lead (Pb) and chromium (Cr), poses an environmental problem that requires effective, sustainable remedial technologies. The objective of this study was to characterize the physiological responses and detoxification potential of bacterial isolates from bioslurry and Lapindo mud under Pb and Cr stress and to evaluate their potential as biostimulants. The isolates were morphologically, physiologically, and biochemically characterized and molecularly characterized using the 16S rRNA gene. Then they were evaluated for metal tolerance, Pb and Cr reduction capabilities in liquid media and soil, and detoxification efficiency through bioassays using Macrobrachium sp. The identification results showed that the bioslurry isolate was Paenibacillus polymyxa, and the Lapindo mud isolate was Lysinibacillus xylanilyticus. P. polymyxa showed better exopolysaccharide (EPS) production, phosphate solubilization, indole-3-acetic acid (IAA) synthesis, and nitrogen fixation capabilities, while L. xylanilyticus showed better biofilm formation capabilities. Both isolates were able to withstand metal stress. Bacterial inoculation reduced Pb and Cr residues in both liquid media and soil compared to controls; the highest reduction efficiency was achieved by a consortium of both isolates, 85.0% for Pb and 97.2% for Cr, lowering soil metal residues to 0.558 mg L-¹ (Pb) and 0.057 mg L-¹ (Cr). Detoxified water also supported the survival of Macrobrachium sp., in contrast to treatments without bacteria. These findings indicate that both isolates have the potential to be developed as bioremediation agents and biostimulants to support the restoration of heavy metal-contaminated soil and water bodies.
Fractionation and mobility of nickel between water–sediment interface in a mining-impacted tropical river basin Farahnaz, Ibtisani; Syafila, Mindriany; Abfertiawan, Muhammad Sonny; Handajani, Marisa
Journal of Degraded and Mining Lands Management Vol. 13 No. 4 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.134.10859

Abstract

Nickel mining in high?rainfall tropical regions produces metal?rich runoff that can substantially alter biogeochemical processes at the water–sediment interface. However, the mechanisms governing nickel partitioning into dissolved, particulate, and sedimentary geochemical fractions in tropical river systems remain insufficiently resolved. This study investigates the fractionation and mobility of Ni, Fe, Mn, Cr, Cu, and Zn in a mining?impacted river in North Maluku, Indonesia, by integrating dissolved–particulate metal separation in water with five?step sequential extraction in sediments. Most metals in sediments were predominantly bound to the residual (RES) fraction, reflecting strong lithogenic control and incorporation into mineral lattices. In contrast, the exchangeable (EXC) fraction—representing the most mobile geochemical phase—followed the order Ni > Zn > Cu > Cr > Mn > Fe, indicating higher potential mobility for nickel relative to other metals. River water showed elevated proportions of dissolved Ni compared to its particulate form, suggesting substantial anthropogenic contributions from mining?derived geochemical runoff. The contrasting dominance of residual?bound metals in sediments and dissolved metals in water highlights a dual?source system in which sedimentary metals are primarily geogenic, whereas dissolved metals are strongly influenced by mining effluents. These findings advance understanding of nickel behavior at the water–sediment interface in tropical rivers and provide a mechanistic basis for predicting metal mobility and ecological risks in mining?impacted environments.
Geospatial analysis of ionic concentrations in borehole and geothermal spring waters of Baleni Village, South Africa Mahlaule, Ntiyiso Ally; Maluleke, Confidence; Makungo, Rachel
Journal of Degraded and Mining Lands Management Vol. 13 No. 4 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.134.11079

Abstract

The research presents a geographic study examining ionic levels in both borehole and geothermal spring water across Baleni Village, South Africa, which has active geothermal sites and relies on groundwater for its cultural practices. The study examined how spatial variations in hydrogeochemical properties affect water quality, resource management, and energy production. The study aimed to measure ionic levels while mapping their distribution to create baseline data for hydrochemical research. The study analysed 10 water samples, including 5 borehole and 5 geothermal samples, using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), and applied Geographic Information Systems (GIS) and Ordinary kriging interpolation to create maps of ionic distribution. The study showed that pH levels meet acceptable standards. The study found that electrical conductivity, salinity, and total dissolved solids levels exceeded acceptable limits, particularly in geothermal samples. Sodium emerged as the dominant ion, with higher levels resulting from geothermal processes and water–rock interactions. The geological controls created two separate zones, which showed different levels of ionic enrichment. The study recommends continuous monitoring, along with the implementation of water treatment and additional feasibility assessments, to achieve sustainable utilisation, including potential electrochemical energy generation.
The potential use of post-coal mining land of PT Bukit Asam Ombilin Mining Unit, Sawahlunto City, West Sumatra, Indonesia, for animal feed production Azwir, Deni; Mahdi, Mahdi; Yonariza, Yonariza; Fitriana, Widya; Fajri, Muhammad
Journal of Degraded and Mining Lands Management Vol. 13 No. 4 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.134.10997

Abstract

Post-mining land in the Ombilin Mining Unit is a state-owned asset managed by PT Bukit Asam (PTBA) and cannot be transferred to private ownership. However, several parties have utilized the land for productive activities without a clear legal basis. Recognizing the economic and ecological benefits, PTBA subsequently granted limited-use rights to livestock farming groups to cultivate forage to support local economic empowerment and environmental restoration. This study was conducted in Sawahlunto City, West Sumatra Province, on the post-coal mining land managed by PTBA's Ombilin Mining Unit. The research objective was to describe the regulatory framework for post-mining land use and to analyze its economic prospects through forage farming. A mixed-methods approach was employed, combining qualitative and quantitative descriptive analyses. Qualitative data were obtained through observation, in-depth interviews, and documentation studies covering aspects of policy, licensing, governance, implementation, monitoring, and evaluation. Quantitative data were collected through a census questionnaire administered to PTBA-assisted farmer groups to assess the feasibility of the forage business using cost, income, and revenue-to-cost (R/C) ratio analysis. The results showed that the regulatory framework for land utilization still lacks legal certainty. Nevertheless, governance mechanisms are well-structured, and the forage business demonstrates economic feasibility, as reflected by a positive R/C ratio. Therefore, the productive utilization of post-mining land represents a sustainable strategy for strengthening the local economy while maintaining the land's ecological functions.

Page 151 of 156 | Total Record : 1551

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