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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
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Articles 50 Documents
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Search results for , issue "Vol. 12 No. 4 (2025)" : 50 Documents clear
Landslide susceptibility analysis on road sections in Kaligesing District, Indonesia, using Frequency Ratio (FR) approaches Pertiwi, Rianita; Sartohadi, Junun; Setiawan, M. Anggri; Maulana, Edwin
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7913

Abstract

Road construction with intensive slope cutting increases landslide susceptibility along the road section, especially in hilly areas such as Kaligesing, Indonesia. This study aimed to compile a landslide susceptibility map along the road section in Kaligesing and evaluate the level of susceptibility based on the main causal factors. GIS approach and quantitative statistical analysis Frequency Ratio (FR) were used in the susceptibility model. Eighty-two landslide points were randomly divided into training (70%) and testing (30%) datasets. Twelve causal factors were used in the analysis: slope direction, elevation, lithology, slope gradient, curvature, hemeroby degree, Topographic Wetness Index (TWI), distance from the river, distance from the road, rainfall, soil texture, and soil aggregate. Model validation used the Area Under Curve (AUC) value to evaluate model performance. The findings showed that the model is accurate, with an AUC value of 0.75 for the training set and 0.71 for the testing set. Furthermore, the level of landslide susceptibility is divided into four classes, namely very high (73 km), high (70.77 km), moderate (0.07 km), and very low (0.03 km). Thus, the findings can be used to support decision-making and planning for more adaptive road infrastructure development in landslide-prone areas.
Land carrying capacity status and land utilization optimization strategy in South Sorong, Indonesia Kondong, Hendrik; Kurniawan, Andri; Santosa, Langgeng Wahyu
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7861

Abstract

Economic growth is the key to community welfare, especially in rural areas. Using land wisely is a simple way to improve the community's economic quality. At its core, the issue is whether the available land can be used most effectively since lousy management can lead to land degradation. This study aimed to identify the status of land carrying capacity and various strategies that can be carried out to optimize land in South Sorong, Indonesia. A spatial approach was used to analyze existing land conditions. Furthermore, the carrying capacity status was identified by considering land availability and potential community needs. Pressure State Responsibility (PSR) analysis was used to identify solutions that can be employed to maximize land resources. Research findings showed that existing land in South Sorong is dominated by forests (40.04%), swamps (36.47%), and mangroves (13.02%). The land carrying capacity status in South Sorong has a surplus value, meaning that existing land is more than sufficient to meet the population's needs, which depends on its productivity. Land development and optimization can be carried out but must involve multiple stakeholders and be carried out in a planned and careful manner so that environmental sustainability is maintained. Land optimization strategies that can be done are intensifying agriculture, adding infrastructure, and introducing mechanical technology in land management. Finally, the finding can be used as a basis for policymakers, especially in rural areas where the land carrying capacity status is still surplus.
Implementation of green infrastructure for rehabilitation of degraded lands in urban areas of Bali: Challenges and roles of universities Dwijendra, Ngakan Ketut Acwin; Winastri K, Desak Ayu Krystina; Krishna K, Dewa Ngakan Made Bagus
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7887

Abstract

Urban areas in Bali are facing increased risks due to the effects of climate change and intensive land degradation, resulting from rapid land conversion and non-environmentally friendly development processes. Green infrastructure provides an integrated and environmentally friendly solution for rehabilitating degraded lands and enhancing the resilience of cities. This research examines the application of green infrastructure in four urban locations in Bali—Denpasar, Badung, Gianyar, and Tabanan—emphasizing the rehabilitation of ecosystems and the role of universities as a central hub. Based on a qualitative case study approach corroborated by quantitative environmental data, the study evaluated the efficacy of green infrastructure projects in improving water and soil quality, minimizing erosion, and improving infiltration rates. Results indicated substantial ecological benefits with implementation, highlighting the role of institutions of higher learning in research, public education, and technological innovation. Although the findings are encouraging, numerous challenges remain, including inadequate financial support, sporadic project allocation, and limited public awareness. This study provided policy and practical recommendations for integrating green infrastructure into spatial planning and enhancing university-government collaboration to ensure sustainable urban development and land reclamation in climate-vulnerable regions.
Hydrological modeling of reclaimed catchment area and pit lake for the management of degraded post-mining land Triwibowo, Didik; Elma, Muthia; Suhartono, Eko; Riduan, Rony; Noor, Ihsan
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7901

Abstract

Open-pit coal mining temporarily alters natural landscapes, resulting in degraded overburden dumps and the formation of pit lakes. In Indonesia, post-mining landforms must undergo reclamation to support sustainable land use. This study evaluates the hydrological capacity of a reclaimed area functioning as the catchment for the Paringin pit lake by applying two hydrological models: the National Rural Electric Cooperative Association (NRECA) and the F.J. Mock model. Using an integrated approach that combines remote sensing, GIS-based spatial analysis, and field-based observations—including meteorological data, real-time inflow monitoring using aerial sensors, and Total Suspended Solids (TSS) measurement—both models successfully simulated monthly inflow and showed good agreement with field observations. Under a tropical climate with over 3,000 mm of annual rainfall and evaporation exceeding 1,000 mm, the catchment-to-lake area ratio of 6.4:1 was found to support sustainable inflow volumes ranging from 0.078 to 0.103 m³/s throughout the year. Although the estimated erosion rate of 3.51 t/ha/year remains within acceptable limits, average TSS levels (89.13 mg/L) exceeded the regulatory threshold of 50 mg/L for raw water supply and aquaculture use. The results affirm the effectiveness of the NRECA and F.J. Mock model in supporting post-mining water management where monitoring data are scarce. This study contributes to the growing need for hydrological connectivity assessment in post-mining landscapes and supports improved planning and sustainable management of pit lakes as integrated components of degraded post-mining land.
Integrating electrical resistivity tomography and x-ray fluorescence for characterizing limestone in the Wapulaka Formation, Central Buton, Indonesia Syamsuddin, Erfan; Maulana, Adi; Assegaf, Alimuddin Hamzah; Irfan, Ulva Ria
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7871

Abstract

The Wapulaka Formation in Central Buton, Indonesia, is a tectonically complex carbonate system characterized by heterogeneous lithologies, including limestones, dolostones, and marls. This study integrates Electrical Resistivity Tomography (ERT) and X-Ray Fluorescence (XRF) to map the subsurface distribution and geochemical characteristics of limestone in the formation. Electrical Resistivity Tomography (ERT) surveys were conducted along four profiles, covering a total length of 495 meters, with an electrode spacing of 5 meters to identify resistivity variations linked to lithological changes, fractures, and karst formations. The collected data were processed and inverted with Res2DInv software, applying topographic corrections to produce high-resolution 2D resistivity models. The limestone samples were examined with an Epsilon 4 XRF spectrometer to ascertain the elemental concentrations, particularly the CaO and MgO levels. Borehole data were used to validate ERT findings and provide a lithological perspective. The amalgamation of the ERT and XRF datasets demonstrate a robust correlation between resistivity and chemical composition. High-resistivity zones (>5000 ?m) are associated with significant, high-purity limestone characterized by elevated CaO and reduced MgO levels, while low-resistivity regions (<1000 ?m) signify eroded, porous, or clay-rich portions with increased MgO and diminished CaO content. The Mg/Ca ratio, obtained from XRF analysis, acts as an indicator of dolomitization, with higher ratios linked to decreased resistivity values. This technology facilitated the creation of a predictive model for limestone quality utilizing resistivity, enhancing resource assessments and selective mining efficacy. This study illustrates the efficacy of integrating geophysical and geochemical methods to delineate intricate carbonate systems, providing insights into subsurface heterogeneity, diagenetic processes, and resource availability.
Development of an indigenous bacterial consortium for enhanced oil degradation in saline-contaminated soils Tuyen, Do Thi; Thuy, Tran Thi Thanh; Thanh, Nguyen Thi Kim; Cuong, Nguyen Viet; Loi, Nguyen Thi Thanh; Tien, Phi Quyet; Cuong, Ngo Cao
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7923

Abstract

This study developed the indigenous CR3.M3 bacterial consortium to enhance oil degradation in saline-contaminated soils. Seven hydrocarbon-degrading strains-closely related to Pseudomonas, Bacillus, and Niveispirillum species (92-99% 16S rRNA sequence similarity)-were isolated from polluted coastal soils using mineral salt media supplemented with crude oil and diesel. While phylogenetic analysis suggests close relationships to known oil-degrading species, formal taxonomic classification requires further genomic validation. The consortium degraded 70% of hydrocarbons within 13 days under saline conditions (?3% NaCl). Field trials in non-sterilized soils (3,542 mg/kg TPH) achieved 65.42% oil removal alongside microbial density increases from 6.26 to 8.11 Log??(CFU/g), confirming ecological compatibility. Its performance in both sterilized and native soils highlights adaptability for coastal bioremediation. Future research should optimize strain ratios, resolve taxonomic identities through whole-genome sequencing, and assess long-term ecological impacts to advance this sustainable remediation strategy.
Analysis of optimization of retention pond function and sediment deposit projection in flood control in Palembang City, South Sumatra, Indonesia Saputra, Erlianto Hona; Damiri , Nurhayati; Imanudin, Momon Sodik; Ngudiantoro, Ngudiantoro
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7933

Abstract

Palembang City frequently experienced flooding during the rainy season, necessitating effective urban water management strategies such as the development of retention ponds. This study employed several analytical methods, including erosion level assessment using the Universal Soil Loss Equation (USLE), sediment yield estimation through bedload traps and suspended sediment samplers, dead storage volume analysis by comparing storage capacities before and after sedimentation, sediment thickness rate calculation based on total erosion per unit area, and retention pond lifespan prediction using dead storage capacity, sediment discharge, and sediment specific weight. The results indicated extremely severe erosion rates ranging from 3,241 to 4,593 t/ha/year (>480 t/ha/year) and very high sediment yields between 4,368 and 7,018.5 t/year (>500 t/year). Sediment accumulation reduced storage efficiency, with dead storage volume reaching 44–61.11%. Siti Khadijah, RC reservoir, Talang Aman I, and IBA retention ponds were classified as having very large dead storage volumes, while Talang Aman II retention pond was in a large category. Sediment thickness rates ranged from 227.2 to 397.9 mm/year (>50 mm/year), indicating a very high sedimentation rate. Consequently, the estimated operational lifespan of the ponds was very short, between 1.86 and 6.36 years (<10 years). In conclusion, the retention pond areas in Palembang exhibited critical erosion and sedimentation issues, resulting in high sediment accumulation, reduced storage capacity, and significantly shortened pond lifespans. These findings highlight the urgent need for sustainable sediment management and maintenance strategies to enhance the effectiveness and longevity of urban retention ponds.
Groundwater management strategy to reduce the impact of land degradation in tropical karst areas Naufal, Muhammad; Adji, Tjahyo Nugroho; Haryono, Eko
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7965

Abstract

The study aimed to determine the level of pollution sensitivity associated with fertilization activities in agricultural land in two karst spring catchment areas (Beton and Guntur). The aquifer characteristics of these two springs differ; the Beton Spring has a more developed allogenic channel development, whereas the Guntur Spring has a less developed autogenic system. In this study, the COCKPIT-PLUS and Master Recession Curve (MRC) techniques are combined to define land use zoning and the degree of aquifer sensitivity to pollution. Field sampling and stakeholder interviews were also conducted to assess land management practices and pollutant concentrations in the springs. The results show that due to the influence of more intensive and varied land use, Beton Spring has a higher sensitivity to pollution, as evidenced by higher concentrations of nitrate, phosphate, and Escherichia coli. In contrast, lower pollution levels in Guntur Spring occur due to the narrower recharge zone area supported by a more consistent planting pattern. Various strategies, including vegetative restoration, drainage planning, land use regulation, and communicative education, were formulated using the DPSIR framework. Strategies are critical in areas with high sensitivity, such as the Beton and Jomblangan recharge zones, which also highlight the necessity of land use restrictions based on upstream-downstream interactions. This study emphasized the importance of adapting the protection plan for karst aquifer recharge zones in response to land use intensity and degradation. It proposes an evidence-based integrated management model that focuses on decreasing the effects of land degradation in tropical karst aquifer systems.
Effect of gamma irradiation on silica-enriched biochar and biofertilizer on the productivity of rice grown on degraded Latosol soil Robifahmi, Nur; Hanani, Muftia; Bachtiar, Taufiq; Flatian, Anggi Nico; Slamet, Sudono; Citraresmini, Ania
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8471

Abstract

The degraded Latosol soil is characterized by its acidity and low organic matter content, which limits rice productivity. Improving the chemical properties of the soil is crucial for supporting the sustainability of paddy fields. This study aimed to enhance these properties using silica-enriched biochar through gamma irradiation as a biofertilizer carrier. Rice husk biochar was selected for its resistance to decomposition and was enriched with SiO? to fulfill the nutritional needs of rice plants. The treatments tested were combinations of biochar-silica formulas (F0 = no formula, F1 = biochar-silica with rice husk ash, and F2 = biochar-silica with zeolite) and NPK fertilizer doses (R0 = no fertilizer, R1 = 50% recommended dose, R2 = 100% recommended dose). The results showed that the F1 formula combined with the full NPK dose (R2) significantly improved soil structure, increased organic carbon content, and enhanced nutrient uptake efficiency, which in turn, promoted higher rice productivity. The use of silica-enriched biochar as a carrier for biofertilizers has proven effective in supporting the sustainability of paddy soils. The F1 formula with a full dose of NPK can be recommended to enhance rice productivity while maintaining soil fertility.
Remediation of heavy metal-contaminated paddy soils using biochar and its effect on corn growth and yield Mayadewi, Ni Nyoman Ari; Rai, I Nyoman; Indrayuni, Dewa Ayu Bulan
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8325

Abstract

Badung River, a primary irrigation source for the subak system in South Denpasar, has been reported to contain excessive levels of heavy metals, exceeding the standard quality for irrigation water. Corn cultivated on subak systems irrigated by this irrigation source had heavy metal residues in its roots and kernels. Long-term consumption of corn containing heavy metals such as Pb, Cd, Cu, Cr, and Hg will cause toxicity to plant tissues and the human body. This study examined the content of heavy metals in soil and corn plants in subak systems in South Denpasar, which are irrigated with water from the Badung River. Remediation of the soils contaminated by heavy metals was conducted using rice straw and husk biochar (Br), coconut coir and shell biochar (Bc), vegetable and fruit waste biochar (Bw), and lignohumic biochar (Bl). The study also evaluated the effect of applying biochar on growth and yield of corn grown on soils contaminated by heavy metals. The results of this study showed that the heavy metal contents in the soil and irrigation exceeded the threshold for soil and water quality standards. The application of Bl yielded the highest biomass fresh weight and seed weight at 14% moisture content compared to other treatments. The Bl treatment also resulted in the best performance in binding and translocating heavy metals based on the bioaccumulation and translocation values ??of the biochar types. Hence, it can be concluded that the most suitable biochar for the remediation of heavy metal-contaminated paddy soils in subak systems is lignohumic biochar.

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