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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 905 Documents
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Application of bentonite-chitosan nanocomposites for the adsorptive removal of iron and natural organic matter in peat water Permana, Edwin; Naswir, M.; Wijaya, Dhian Eka; Hidayat, Ali Nurdin; Nurjamil, Dimas Setya; Prayogi, Andrian Setyarestu
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.2025.124.8107

Abstract

Peat water, commonly found in peatland regions, often poses a challenge as a water source due to its high content of iron and natural organic matter (NOM). This research investigated the development and application of bentonite–chitosan nanocomposites as an effective adsorbent for reducing iron metal and NOM concentrations in peat water. Chitosan was synthesized from tilapia fish scales through demineralization, deproteinization, and deacetylation processes, then characterized for moisture content (7.4%), ash content (5.4%), and functional groups using FTIR spectroscopy. Bentonite was thermally and chemically activated with sulfuric acid to increase its adsorption capacity. Nanocomposites were prepared with varied bentonite-to-chitosan ratios (90:10, 70:30, 50:50) using sodium tripolyphosphate (STPP) as a crosslinker. FTIR and XRD analyses confirmed the formation of nanocomposites and revealed structural changes post-adsorption, including reduced crystallinity and increased particle size. Adsorption studies showed that the 90%Bt-10%Ch3 formulation achieved the highest iron removal efficiency (68.6%) with an adsorption capacity of 0.084 mg/g. Meanwhile, the 50%Bt-50%Ch3 formulation demonstrated the highest NOM removal efficiency (36.8%) with a capacity of 36.80 mg/g. The results indicate that bentonite is more effective for iron adsorption, while chitosan plays a key role in removing NOM due to its amine and hydroxyl functional groups. This study highlights the potential of utilizing fishery waste and natural minerals to produce low-cost, eco-friendly nanocomposites for improving water quality in peatland environments.
Integrated rice husk biochar and compost to improve acid sulfate soil properties and corn growth Maharani, Puspita Harum; Maftu'ah, Eni; Sulaeman, Yiyi; Napisah, Khairatun; Masganti, Masganti; Mukhlis, Mukhlis; Anwar, Khairil; Ningsih, Rina Dirgahayu; Chairuman, Novia
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.2025.124.8097

Abstract

Acid sulfate soils are of poor quality and characterized by extreme acidity, nutrient deficiency, and high Al and Fe toxicity. Developing soil amendments from local resources is crucial to reduce input costs. This study investigated the effect of the integrated soil amendments (biochar, compost, and lime) on corn growth and the acid sulfate soil quality. Using randomized block design, this study tested nine type soil amendments, namely A (100% rice husk ash), B (100% rice husk biochar), C (100% compost), D (100% dolomite), H (100% humate), ACD (30% rice husk ash + 30% compost + 40% dolomite), BCD (30% rice husk biochar + 30% compost + 40% dolomite), AHD (30% rice husk ash + 30% humate + 40% dolomite), BHD (30% rice husk biochar+30% humate+40% dolomite), and control (no amendment). The application of soil amendments significantly increased soil pH (31%), available P (310%), reduced exchangeable Al (19%), and increased corn growth (163%). The BCD amendment type increased available phosphorus from 10 to 43 mg kg-1, reduced exchangeable Al from 3.45 to 2.01 cmol(+) kg-1, and enhanced corn growth and leaves' P level. Integrating rice husk biochar and compost could reduce the need for agricultural lime, improve acid sulfate soil quality, and enhance land productivity. This combination has the potential to be an effective soil amendment for degraded acid sulfate soils, thereby further boosting land productivity and promoting agricultural sustainability.
Subsurface characterization and seismic risk mapping in Padang City using HVSR and resistivity data Octova, Adree; Razi, Pakhrur; Anaperta, Yoszi Mingsi
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.2025.124.8127

Abstract

Padang City, situated in a seismically active region, faces significant earthquake risk due to its complex geological structure. This study integrates passive seismic and geoelectrical resistivity methods to characterize subsurface conditions and map seismic vulnerability across 11 districts. Passive seismic data, collected from 84 microtremor stations, were analyzed using the Horizontal-to-Vertical Spectral Ratio (HVSR) method to derive dominant frequency (f?), amplification factor (A?), and seismic vulnerability index (Kg). High Kg values, indicating elevated seismic amplification potential, were observed in Koto Tangah, Kuranji, and parts of South and West Padang. Subsequently, geoelectrical surveys along five targeted lines revealed subsurface heterogeneities, including groundwater-saturated layers and weak sediment zones that heighten liquefaction risk. The integration of HVSR and resistivity data provided a robust framework for identifying high-risk areas with greater precision than single-method approaches. These findings offer critical input for seismic microzonation and urban disaster mitigation planning, underscoring the need for multi-method geophysical assessments in earthquake-prone urban settings.
Geoinformatics-based assessment of land degradation and ecological recovery (2004-2024) in the Phung River Basin, Northeast Thailand Ruksajai, Narathip; Saraphirom, Phayom; Lohpaisankrit , Worapong
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.2025.124.8159

Abstract

A geoinformatics-based assessment of land degradation and early ecological recovery was conducted in the Phung River Basin, Northeast Thailand between 2004 and 2024. Multi-temporal Landsat imagery, NDVI-based vegetation indices, and centimeter-level UAV RTK GNSS ground validation were integrated to detect land cover changes and ecological dynamics. Significant declines in cropland and forest areas were observed, largely due to urbanization and the expansion of plantations. Localized NDVI improvements suggested early signs of vegetative regeneration. The integrated classification framework achieved high accuracies—93.4% in 2004 and 86.9% in 2024—validating its robustness for land transformation analysis. The findings of this study contribute to landscape monitoring practices and provide actionable insights for policymakers to achieve SDG 15.3 on land degradation neutrality.
Application of floating fly ash-bottom ash for acid mine drainage remediation Husada, Muhamad Hadid; Fauzi, Anas Miftah; Mansur, Irdika; Suharyono, Suharyono
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.2025.124.8261

Abstract

Acid mine drainage (AMD) is formed because rocks containing sulfide minerals, such as pyrite (FeS?), are exposed to oxygen and water. AMD treatment is generally carried out with lime, but this method is relatively expensive and unsustainable. Fly ash-bottom ash (FABA), a type of coal combustion waste can potentially replace lime in treating acid mine drainage (AMD). This study aimed to elucidate the potential use of FABA to neutralize pH of AMD. The method used was a floating FABA system using styrofoam with three treatments: floating FABA with dimensions (cm length x cm width x cm height) of 33x33x8 (F1 30), floating FABA of 28x28x8 (F2 25), and floating FABA of 23x23x8 (F3 20). The floating FABA consisted of 85% FABA and 15% cement, with a 120 L AMD. The results showed that the F1 30 treatment reached a pH of 6.06 from an initial pH of 4.2 within 3 days. The floating FABA application also reduced the concentration of heavy metals (Fe and Mn) and total suspended solids (TSS) in the F2 25 treatment. Micro XRF analysis indicated a high element distribution in the floating treatment zone, supporting the neutralization mechanism of precipitation and adsorption. The results of the statistical analysis showed no significant difference between treatments, indicating that all treatments were effective and could be considered based on cost efficiency and retention time. Overall, the floating FABA application increased pH and progressively reduced heavy metal content, supporting its use as an efficient and sustainable AMD neutralization solution.
Urban Heat Island phenomenon and the role of urban green spaces in regulating thermal comfort in Bogor City, Indonesia Deviro, Sonya Okta; Karlinasari, Lina; Nurhayati, Ati Dwi
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.2025.124.8391

Abstract

This study examined the intensification of the Urban Heat Island (UHI) phenomenon in Bogor City, Indonesia, over a ten-year period from 2013 to 2023. Rapid urbanization has led to extensive changes in land cover, primarily the conversion of vegetated areas into built-up zones. This research integrated remote sensing analysis using Landsat 8 OLI/TIRS imagery with field-based measurements of the Temperature Humidity Index (THI) to assess spatial patterns of Land Surface Temperature (LST), vegetation cover (NDVI), and built-up area expansion (NDBI). The results indicated a notable increase in UHI intensity, as reflected in the expansion of high LST zones (29-32 °C) and a reduction in cooler zones (23-26 °C). Built-up areas increased most significantly in Tanah Sareal (11.98%) and West Bogor (8.49%), while vegetation cover declined sharply, especially in North and Central Bogor. Regression analysis showed a strong negative correlation between NDVI and LST (R² = 0.59) and a positive correlation between NDBI and LST (R² = 0.60), confirming the thermal buffering role of vegetation and the heat-amplifying effect of built surfaces. THI measurements indicate widespread thermal discomfort (THI >27 °C) in densely populated urban areas. However, Central Bogor maintains lower LST and THI values, indicating better thermal comfort. These findings highlight the crucial role of urban green infrastructure in mitigating urban heat island (UHI) effects, underscoring the importance of adopting nature-based solutions, such as expanding green spaces and implementing sustainable land management practices, to enhance urban climate resilience.
Short-term natural restoration effects on groundwater table in several peatland conditions of Acacia plantation forests Qalbi, Andria Harfani; Tarigan, Suria Darma; Barus, Baba; Sudadi , Untung
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.2025.124.8191

Abstract

One significant approach to restore the ecosystem function of degraded peatlands is natural restoration. This study evaluated the effect of short-term natural restoration on groundwater table in several peatland conditions in the Acacia plantation retired since 2016. Four types of land: burned land, Acacia post-harvest land, retired Acacia plantation forest, and the natural forest were considered as our study area. This study analyzed soil properties and remote sensing using the NDVI index to evaluate vegetation density in 2016, 2019, and 2022. This study found that natural restoration in the period of 2016-2022 increased vegetation density, almost similar to natural forest vegetation. Both soil properties and groundwater table on Acacia plantation forest and natural forest were not significantly different. High saturated hydraulic conductivity and low bulk density on both areas supported the stability of peat hydrology. In addition, variations in rainfall affected the pattern of changes in groundwater table, with a decrease during the dry season and an increase during the rainy season. The findings of this study confirm that short-term natural restoration can restore hydrological and vegetation functions in degraded peatlands, especially in Acacia plantation areas. These findings can be scientific recommendations for sustainable peatland management.
Maintaining the critical water threshold in degraded Histosols to maximize soybean (Glycine max L. Merr.) growth Masulili, Agusalim; Sutikarini; Suci, Ida Ayu; Kurniadi, Edi
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.2025.124.8169.

Abstract

Histosols pose considerable potential for soybean cultivation but are highly susceptible to degradation. One critical constraint is the soil water threshold required to maximize soybean growth. This study aimed to determine the critical soil water content of degraded Histosols amended with rice husk ash and to assess its effect on soybean development. The experiment was conducted in a greenhouse and laboratory at the Faculty of Agriculture, Science and Technology, Universitas Panca Bhakti, from January to March 2024. A randomized complete block design with a factorial arrangement was employed, comprising two factors: rice husk ash at three application rates (12, 18, and 24 t ha-¹) and soil moisture levels at three percentages (25% below field capacity, at field capacity, and 25% above field capacity). Results indicated that leaf water potential, as an indicator of water availability for soybeans, was significantly influenced by soil moisture level. In contrast, rice husk ash treatment did not exert a significant effect. To attain the critical soil water threshold for optimal soybean performance on degraded Histosols, a moisture level 25% above field capacity was required. The best soybean growth was observed under the combined treatment of 12 t ha-¹ rice husk ash and soil moisture 25% above field capacity.
Coal fly ash amendment: affecting soil resistance, water retention, and root growth in sandy soils Jubaedah, Jubaedah; Iskandar, Iskandar; Baskoro, Dwi Putro Tejo; Mulyanto, Budi; Nurida, Neneng Laela; Yustika, Rahmah Dewi; Maswar, Maswar
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.2025.124.8421

Abstract

Studies have shown that coal fly ash (CFA) can improve soil physical properties (such as bulk density) and increase available water content. However, its pozzolanic properties may also contribute to soil compaction. The overall impact of these contrasting effects on soil behavior remains insufficiently understood. This study investigated the effects of CFA amendment on soil resistance, water retention, and corn root growth in sandy soil. Using a completely randomized design, the research was conducted at the Taman Bogo Agricultural Station in East Lampung for two planting seasons (October 2022 - June 2023). Four CFA rates (0%, 3%, 6%, and 12% w/w) were applied in lysimeter plots with five replications. The results demonstrated that CFA application reduced soil bulk density (BD) at 6% and 12% rates due to CFA’s lower BD than the soil. However, higher CFA doses increased soil penetration resistance (PR), likely due to surface crust formation rather than pozzolanic reactions. Plant available water capacity (PAWC) significantly increased by 6% and 12% CFA, thus improving soil water retention. Improving physical properties in the second season promoted root growth at the 12% CFA rate. The use of CFA in sandy soils leads to improvement in selected physical properties and enhances water retention. Therefore, while CFA enhances water retention, its effects on soil compaction and root growth must be carefully managed to ensure optimal results.
Impact of wave energy and sediment transport on shoreline changes: A multi-temporal satellite image analysis in Galesong, Takalar Regency, Indonesia Sakka, Sakka; Assegaf, Alimuddin Hamzah; Amiruddin, Amiruddin; Saaduddin, Saaduddin; Azis, Siti Nur Azisah Aprianti; Ismail, Andi Muhammad Imran
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.2025.124.8179

Abstract

Galesong Beach, located in Takalar Regency, South Sulawesi, is a coastal area that has experienced significant shoreline changes due to anthropogenic activities, such as coastal development and land use, and oceanographic factors, particularly wave activity. This study aimed to analyze the magnitude and direction of wave-induced sediment transport and its influence on erosion and accretion rates along Galesong Beach. Wave height was calculated using the Coastal Engineering Manual (CEM) method based on wind data, while sediment transport volume was estimated using the Van Rijn method. Shoreline change rates were identified using Landsat 7 ETM+ and Landsat 8 OLI imagery from 2010 to 2023, analyzed with the Digital Shoreline Analysis System (DSAS) to determine annual erosion and accretion distances and rates. The study area was divided into seven zones, each with varying coastal dynamics. Results showed that monthly wave heights peaked in December, January, and February, ranging from 1.54 to 2.21 m. Sediment transport was estimated at 2,894.9 to 13,703.42 m³/year northward and 5,405.77 to 13,956.26 m³/year southward, resulting in both erosion and accretion. The maximum annual accretion rate reached 10.77 m/year, while the maximum erosion rate was 3.28 m/year. The furthest accretion reached 141.27 m, and the greatest erosion extended to -43.05 m. The highest accretion occurred in North Boddia, while the most severe erosion was found in Bontoloe. This study offers insights into local coastal dynamics and serves as a foundation for effective and sustainable coastal management strategies.

Page 85 of 91 | Total Record : 905

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