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Journal of Degraded and Mining Lands Management
Published by Universitas Brawijaya
ISSN : 2339076X     EISSN : 25022458     DOI : -
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 952 Documents
Land suitability for chili on the slopes of Raung Indonesia, towards sustainable agriculture Basuki, Basuki; Setiawati, Tri Candra; Hermiyanto, Bambang; Budiman, Subhan Arif; Sari, Vega Kartika
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9385

Abstract

Red chili consumption in Indonesia is recorded to increase by 6.78% or 40.42 thousand tons in 2024 from 1,650.75 thousand tons in 2022, while productivity in 2025 is projected to increase by 6.78%, while chili productivity in 2024 is 1,386.45 thousand tons. 37% of the land area in the Kesambi Sub-watershed is marginal and has potential for horticultural cultivation. The research aims to align land and chili cultivation management on the slopes of Mount Raung, Indonesia, toward sustainable agriculture and national food self-sufficiency. The method used is through data collection, both laboratory data and land biophysical data that are adjusted to match the suitability with plant growth requirements. The results of the study showed that the actual land suitability of red chili plants at 78.87% or 2,558.48 ha was dominated by the marginally suitable class (S3), and 21.13% or 685.58 ha were in the unsuitable category (N), with the most inhibiting factors being erosion hazards, nutrient retention, and air availability. Efforts to improve land quality to produce optimal production for crop achievement through the addition of agricultural fertilizers such as NPK, the provision of organic matter and dolomite, and slope improvement by making “gulud” terraces or providing mulch so that the potential land was achieved to 67.11% or 2,177.01 ha dominated by class S3, 21.13% or 685.58 ha were categorized as unsuitable class (N), and 11.76% or 381.47 ha were categorized as quite suitable class (S2).
Assessing long-term land use/land cover changes in Dong Thap Province, Upper Vietnamese Mekong Delta: A 33-year retrospective using satellite data Nguyen, Ho; Trung, Ta Hoang; Dinh, Tran The
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9131

Abstract

The Vietnamese Mekong Delta (VMD), Vietnam's “rice bowl”, is a vital agricultural hub due to its extensive network of rivers and fertile floodplains. This study evaluates land use/land cover (LULC) changes in the Upper Delta - Dong Thap Province from 1990 to 2023, using Landsat imagery and random forest algorithms. LULC maps were analyzed across five classes: cropland, wetlands, permanent crops, built-up areas, and open water. We monitored these classes at three points: 1990, 2005, and 2023, noting improvements in classification accuracy from 89% in 1990 to 94% in 2023. Significant transformations were observed; from 1990 to 2005, the most extensive change was the conversion of 477.32 km² of wetlands to cropland. Conversely, the minimal change involved only 0.55 km²  of open water area converted to built-up areas. Between 2005 and 2023, transitions from cropland to permanent crops dominated, peaking at 242.03 km². Over the three decades, the province experienced substantial shifts in LULC, primarily from wetlands to croplands, totaling 513.24 km². These changes reflect both natural dynamics and human impacts, underscoring the influence of past policies on land development. This longitudinal study provides crucial insights for policymakers, emphasizing the need for informed, sustainable land management strategies in Dong Thap Province.
Granulometric assessment of sediment accumulation for desilting the Toukomtoré agricultural water reservoir in Burkina Faso Ilboudo , Adama; Yameogo , P. Louis; Kabore , Joseph Nomwindé; Guébré , Daouda; Ouédraogo , Harouna; Hien, Edmond
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9141

Abstract

Sedimentation of small reservoirs is a critical factor in the degradation of land and water resources in the Sudano-Sahelian zone. Such infrastructure underpins agricultural resilience and rural livelihoods. This study used an integrated granulometric, morphometric, and spatial analysis to evaluate sediment accumulation in the Toukomtoré reservoir in Koubri, central Burkina Faso, and to inform degraded land management strategies. Ten sediment cores (maximum depth: 1.50 m) were collected along transects spanning the upstream-downstream and center-periphery axes. Thirty samples were analyzed for particle size distribution, and key parameters such as the Hazen uniformity coefficient (Cu) and the classification coefficient (Cc) were computed. Spatial interpolation was performed using QGIS, and statistical analyses were performed using R 4.4.3. The results indicate a mean sediment deposition of 90 cm, peaking at 119 cm in the upstream and central zones, which are dominated by sand (64%-80%). Subsurface layers are predominantly sandy (80%), while surface horizons show enrichment of silt and clay, indicating recent deposition. The bulk density ranged from 1.55 to 1.63 g/cm³. Critical degradation drivers include a steep watershed slope of 10.5 m/km, sparse vegetation, unsustainable tillage practices, and the absence of soil conservation structures. This sedimentation process severely reduces reservoir storage capacity and accelerates land degradation. To mitigate erosion and prolong infrastructure lifespan, this study recommends integrated watershed interventions, including vegetative buffers, check dams, and agroforestry. This study provides policymakers who manage small reservoirs in semi-arid, degraded landscapes with actionable data.
Application of organic matter-enriched biochar for improving degraded acid sulfate soil properties in rice (Oryza sativa L.) cultivation Masulili, Agusalim; Rahayu, Sri; Suci, Ida Ayu; Kurniadi, Edi
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9177

Abstract

Acid sulfate soils pose significant challenges for rice cultivation due to  their extreme acidity (pH<4.0) and associated nutrient deficiencies. This study investigated the effectiveness of biochar enriched with various organic amendments in improving soil properties and rice growth in degraded acid sulfate soils. A randomized block design was employed with seven treatments: control (B0), biochar enriched with Chromolaena odorata (B1), rice straw (B2), chicken manure (B3), cattle manure (B4), Tithonia sp. compost (B5), and NPK fertilizer at half the recommended dose (B6), each applied at 10 t/ha. The experiment was conducted under greenhouse conditions using 10 kg of soil per polybag with four replications. Soil samples from Sungai Kakap, West Kalimantan,  exhibited severe constraints, including pH levels of 3.75-3.87, organic carbon content of 0.82-0.98%, and high Al and Fe contents (>3%). Results demonstrated that organic matter-enriched biochar treatments significantly improved soil chemical properties (p<0.01). Rice straw-enriched biochar (B2) achieved the highest available P (117.93 ppm) and K (1.09 cmol(+)/kg), while cattle manure-enriched biochar (B4) showed maximum organic C increase (1.30%). Plant growth parameters showed significant improvement, with B2 producing the tallest plants (137.43 cm) and B5 (Tithonia sp.) yielding the highest productive tillers (38.83). The findings indicate that biochar enriched with local organic materials, particularly rice straw and Tithonia sp., offers a sustainable solution for rehabilitating degraded acid sulfate soils while enhancing rice productivity.
Modeling of groundwater conservation zone using the modified GOD method on part of the southern slope of Merapi Volcano, Yogyakarta, Indonesia Sejati, Sadewa Purba; Neritarani, Rivi
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9303

Abstract

Studying groundwater conservation zones is vital for maintaining groundwater sustainability. A model for groundwater conservation zones should be based on groundwater pollution vulnerability to ensure that groundwater resource sustainability addresses both quantity and quality. Still, few studies have been conducted on groundwater conservation zone models based on groundwater pollution vulnerability zones. This study used the modified GOD method to explore a groundwater conservation zone model based on groundwater pollution vulnerability zones. The research variables included groundwater depth, aquifer type, natural materials of the aeration zone, and land use. The data was collected through a field survey and literature reviews, and then processed using scoring and overlay techniques through geographic information system software. The results indicated that the modified GOD generated a model with better accuracy. The modified GOD produces a model of groundwater conservation priority zones with four classifications: groundwater conservation priority zone I is in areas with high pollution vulnerability; zones II and III are in areas with medium and low pollution vulnerability, respectively; and zone IV is in areas with no pollution vulnerability.
After mining catastrophe: the language of economic survival of the Sipalay mine people at Sipalay, Negros Occidental, Philippines Barrientos, Rubie Lyn C.; Pilar, John Gerald A.
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9239

Abstract

The mining industry has intimate ties to the environment, economy, and society. Its life cycle impacts communities in both positive and negative ways, affecting the community. This research investigated the experiences of miners from the Sipalay Mine, which was owned by Maricalum Mining Corporation, formerly Marinduque Mining Industrial Corporation. Using a qualitative approach and ethical research standards, ten purposively selected informants shared their stories. The informants demonstrated resilience by adjusting to challenging situations, striving for a better life, implementing mitigation strategies, and finding contentment in their current circumstances. Following the closure of the mine, former miners faced unemployment and limited resources, but they positively turned to self-determination, exploiting their resource management and entrepreneurial talents. This study proposed the ENCOMTRACOM (Engagement Community, Transitioning Community) collaborative model to ensure sustainable development. This model promotes community involvement, fosters economic growth through livelihood projects, encourages stakeholder collaboration, and facilitates effective communication. Moreover, three layers of scaffolding frameworks: (1) the challenges miners faced post-closure, including unemployment and resource scarcity; (2) the miners’ strengths in resource management, entrepreneurship, and training; and (3) their ability to build resilience through community support, safer livelihoods, and skill development. Overall, the Sipalay miners have demonstrated their adaptability by striving for improvement, reducing risks, and finding fulfillment. This research advocates for the development of future programs on community assistance, entrepreneurship training, and collaboration among universities, local government, and NGOs. While this study may be limited for researchers, this research provides valuable insights for future initiatives on sustainable recovery in post-mining communities.
Land cover and socio-economic dynamics of coffee to oil palm land conversion in Way Kanan, Indonesia Hernanda, Tiara Aprilia Putri; Fauzi, Akhmad; Barus, Baba; Arifin, Bustanul
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9271

Abstract

The expansion of oil palm in Indonesia increasingly occurs at the expense of traditional perennial crops such as coffee, reshaping land systems and livelihoods. This study analyzed coffee to oil palm conversion in Way Kanan Regency, Lampung Province, from 2018 to 2024 through GIS-based classification, satellite imagery, and field validation. Results revealed a sharp decline in forest cover of around 63% during those periods and the dominance of agricultural lands (197,000 ha), driven primarily by oil palm expansion. Results showed that in Kasui, coffee agroforestry followed a boom and bust trajectory with a 59% increase, but was later displaced by oil palm, which surged by 52%. Results indicated that in Rebang Tangkas, coffee maintained a modest presence with a 36% increase, while oil palm expanded aggressively by 329%, underscoring its dominant role in reshaping land use dynamics. Conversion patterns were amplified by topography and accessibility, with oil palm concentrated in lowlands and coffee surviving in uplands. Institutional frameworks and economic incentives reinforced oil palm dominance, while rising coffee prices have triggered localized reconversion. These findings highlight a dual transition: oil palm consolidation in accessible lowlands and the persistence of coffee agroforestry in upland niches. The study underscores the urgency of place-based governance to reconcile economic drivers with ecological sustainability and rural livelihood resilience.
Spatial modeling of soil erosion in the Teesta River Basin in Bangladesh using RUSLE and remote sensing data in Google Earth Engine Butar Butar, Erni Saurmalinda; Thepvongsa, Jedtavong
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9473

Abstract

Soil erosion posed a significant environmental challenge in river basin environments, threatening agricultural productivity, compromising water quality, and eroding ecosystem integrity. The Teesta River Basin, an ecologically sensitive and economically important region, is increasingly affected by erosion driven by natural and anthropogenic factors. This study employed the Revised Universal Soil Loss Equation (RUSLE) alongside Google Earth Engine (GEE) and Geographic Information System (GIS) tools to evaluate the spatial distribution of soil erosion. The model incorporates rainfall erosivity (R), soil erodibility (K), slope length and steepness (LS), cover management (C), and support practices (P), processed with high-resolution remote sensing datasets. Results indicate strong spatial variability, with average soil loss estimated at 11.25 t/ha/yr. About 44% of the basin experiences very low erosion, 21% low, 6% moderate, 10% severe, and 7% very severe erosion. Agricultural land, the dominant cover type (391,796.9 ha), shows the highest average soil loss (112 t/ha/yr), largely due to continuous tillage, residue removal, and unsustainable practices. Nearly 59% of cropland faces high erosion risk compared to other land covers. Prioritization of erosion-prone areas reveals that 7% of the basin falls into high priority (very severe), 10% medium priority (severe), and over 70% low priority (low and very low). These findings offer crucial guidance for implementing targeted soil conservation measures and informing sustainable land use planning. The study highlights the effectiveness of integrating RUSLE with GEE for large-scale erosion assessment and watershed management.
Predictive model for California Bearing Ratio (CBR) in expansive coastal subgrades: a rapid geotechnical assessment for degraded and marginal lowland areas Nugroho, Soewignjo Agus; Satibi, Syawal; Putra, Agus Ika; Zulkifli, Zulkifli; Sutikno, Sigit; Yusa, Muhamad; Rinaldi, Rinaldi; Yamamoto, Koichi
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9329

Abstract

In geotechnical engineering, professional actions and expert judgment are often essential in soil investigation methods. In lowland and coastal areas, expansive, fine-grained soils and sandy sedimentation lead to reduced bearing capacity, posing significant challenges for sustainable infrastructure development on marginal and degraded lands. Such conditions are prevalent in post-mining or naturally poor coastal environments, necessitating cost-effective and rapid assessment tools. This study modeled a clayey sand mixture using bentonite and kaolin as fine fractions, which exhibit expansive behavior and poor gradation, simulating worst-case geotechnically degraded subgrades. The mechanical behavior of the soil was evaluated through modified compaction, using the CBR test and CPT test as bearing capacity parameters. Soil mixtures were simulated with sand fractions ?65% and bentonite-kaolin compositions with ?50% bentonite. Compaction was modeled using variations in energy compaction and water content under conditions below the maximum dry density. CBR prediction was conducted using Qc as the primary predictor and dry density as a supporting predictor. A hybrid stepwise regression analysis in the         Z-score scale identified positively correlated predictors: +3.00 (Qc), +0.55 (?dry), and +1.28 (Qc ?dry interaction). The regression model showed strong statistical performance with R² = 0.84 and high significance with the lowest p-values. The resulting regression equation offers an applicable approach to rapidly evaluate the bearing capacity of subgrade soils in degraded coastal or marginal conditions, thereby facilitating geotechnical engineering design and initial site assessment crucial for land management and rehabilitation actions.
Rehabilitation of disturbed land in bauxite mining: Challenges and prospects in Sanggau, West Kalimantan, Indonesia Wanda, Wanda; Akbar, Aji Ali; Putri, Erisa Ayu Waspadi; Suhartoyo, Aji
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9259

Abstract

Bauxite is the primary raw material for aluminum production, and its mining activities are widespread, including in Indonesia. However, land cover changes caused by bauxite mining can significantly disrupt ecosystem balance. This study aimed to analyze land cover change rehabilitation strategies in response to bauxite mining in Sanggau Regency, Indonesia. Using Geographic Information Systems (GIS) with an overlay technique, land cover data from 2009, 2015, 2022, and 2024, along with soil quality data, were examined. The findings indicate that between 2009 and 2024, approximately 4,363.52 hectares of land were converted into mining areas, including swamp shrubland (308.67 ha), secondary swamp forest (289.28 ha), plantations (74.01 ha), primary dryland forest (3,318.92 ha), and open land (190.99 ha). Recommended rehabilitation strategies include the application of red mud waste mixed with cattle manure as fertilizer, as well as the use of cocopeat as a topsoil substitute to enhance soil quality.