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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 905 Documents
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Degradation of soils around the Kattakurgan Reservoir and its impact on soil properties Jabbarov, Zafarjon; Abdullaev, Shokhrukh; Rakhmatullaeva, Guljakhon; Abdurakhmonov, Nodirjon; Ismonov, Abduvaxob; Kalandarov, Nazimkhon; Yuldashev, Iskandar; Pulatov, Muxiddin; Mamajanova, Uktamxon; Djabborov, Shavkat
Journal of Degraded and Mining Lands Management Vol. 12 No. 5 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.125.8957

Abstract

This study investigated hydromorphic processes in soils surrounding the Kattakurgan Reservoir and examines the influence of groundwater on their physicochemical properties. Soil samples were analyzed for particle-size distribution, pH, electrical conductivity (EC), total organic carbon (TOC), and major ion content. Particle-size analysis indicated an increase in the proportion of physical clay from 41.2% to 48.3%, confirming a pronounced hydromorphic impact on soil structure in areas where the groundwater table was within the 85-155 cm range. ANOVA and regression analyses revealed strong positive correlations between sand-silt (? = 0.922) and sande-clay (? = 0.391) fractions, whereas TOC and EC exhibited statistically significant negative relationships with sand content. The results further indicated that physical clay content was substantially higher at locations near the reservoir, where hydromorphic conditions were more intense, reflecting the compaction of soil structure associated with elevated groundwater levels. Overall, these findings highlight the critical role of groundwater fluctuations in driving structural changes in soils, with direct implications for their physicochemical properties.  
Flood risk assessment and channel roughness adjustment modeling in a degraded Baliase River basin, Indonesia Yumna, Yumna; Sapareng , Sukriming; Nur , Burhanuddin; Akmal , Akmal; Soma, Andang Suryana
Journal of Degraded and Mining Lands Management Vol. 12 No. 5 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.125.8997

Abstract

Land degradation in the Baliase River Basin continues to worsen due to increasingly complex hydrological phenomena. This study aimed to evaluate peak discharge as a flood reference for a return period of 2–200 years, estimate channel capacity, determine flood risk status, and simulate hydraulic responses to variations in Manning's n value. Peak discharge calculations use the Nakayasu synthetic unit hydrograph method, with field geometric data modeled using HEC-RAS 6.0 software in a steady-state manner. Four technical scenarios were tested: (1) river normalization, (2) clearing of wild vegetation, (3) bank hardening, and (4) channel deepening/straightening. The analysis results indicate that the Baliase River Basin is generally in critical flood conditions, especially in the downstream and central areas (Stations 6-14). Most river segments are unable to accommodate peak discharges for a repeat period of 2 years. The variation in the n value in each scenario suggests that technical intervention can significantly alter the hydraulic characteristics. Adjusting n values can reduce flood risk, primarily through changes in hydraulic form. Scenario 4 is most effective because it increases the cross-sectional area and hydraulic radius, while Scenarios 1 and 3 contribute by reducing channel roughness. Scenario 2 serves as a support strategy and is ideally combined with other strategies. Priority is given to Scenario 4 in areas where discharge exceeds channel capacity.
Integrated treatment and energy recovery from palm oil mill effluent using laccase-producing microalgae in a microbial fuel cell system Kongthong, Alisa; Yooyen, Thanapon; Chaijak, Pimprapa
Journal of Degraded and Mining Lands Management Vol. 12 No. 5 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.125.8987

Abstract

The treatment of palm oil mill effluent (POME) remains a significant environmental challenge due to its high organic load, complex pigmentation, and dark color. This study aimed to develop a sustainable low-input approach for POME treatment and bioelectricity generation using a photosynthetic microbial fuel cell (PMFC) under the environmental conditions. The heterotrophic green microalgae Choricystis parasitica SW-03 and the photosynthetic bacterial consortium have been used for pigment degradation and electricity generation. The degraded metabolites were determined using gas chromatography-mass spectrophotometry (GC-MS). The results showed the maximal open circuit voltage (OCV) of 0.702±0.02 V. Maximum current and power densities reached 19.20?±?2.40?mA/m3 and 2.81?±?0.61?mW/m3, respectively. The co-culture also demonstrated strong bioremediation performance. GC-MS analysis identified key degraded metabolites, including cyclotrisiloxane, hexamethyl; benzene,  1,3-dimethyl; benzene, 1,2,4-trimethyl; and cyclotetrasiloxane, octamethyl. These findings demonstrate that integrating microalgae SW-03 with photosynthetic bacteria in a PMFC presents an effective and eco-friendly strategy for POME treatment.
Evaluation of groundwater quality in Palu-Sigi Biromaru post-liquefaction, Central Sulawesi, Indonesia Afandi, Moh Fahri; Wilopo, Wahyu; Pranantya, Pulung Arya
Journal of Degraded and Mining Lands Management Vol. 12 No. 5 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.125.9041

Abstract

The liquefaction phenomenon on September 28, 2018, in Palu, particularly in Petobo and Jono Oge, caused severe damage and disrupted the shallow aquifer system. This study compared groundwater quality in the non-liquefaction area and the liquefaction area before and after the 2018 earthquake in South Palu and Sigi Biromaru, Central Sulawesi, Indonesia. The data were collected through field and laboratory analyses in 2025 and secondary data in 2018, before the earthquake, from previous researchers. The parameters of groundwater, including physicochemical properties, major ions, stable isotopes (?¹?O-?²H), and E. coli. The results show that non-liquefaction areas remained stable, characterized by Ca-HCO? facies and isotopes close to LMWL, which reflect local meteoric recharge. In contrast, post-liquefaction areas exhibited significant increases in Na?, Cl?, SO?²?, and NO?? along with high content of E. coli bacteria, resulting from a combination of geological processes and anthropogenic activities. Liquefaction also causes land degradation due to the loss of the soil's humus layer, as well as soil pollution from the remains of building materials that collapse during the liquefaction process. These findings confirm that liquefaction accelerates ion mobilization, increases the biological vulnerability of aquifers, and reduces soil quality.
Assessing groundwater recharge zones through land use analysis for sustainable management of degraded catchments in Cokro Spring area of Klaten Regency, Indonesia Riyanto, Dwi Siswo; Hendrayana, Heru; Erwindy, Jossi
Journal of Degraded and Mining Lands Management Vol. 12 No. 5 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.125.9023

Abstract

Sustainable groundwater availability depends on the optimal functioning of recharge zones, particularly in spring catchments that supply clean water. This study delineates groundwater recharge zones in the 81 km² Cokro Spring catchment, Klaten Regency, using an integrated approach combining Vertical Electrical Sounding (VES) geophysical data with a GIS-based Analytical Hierarchy Process (AHP). Eight parameters were analyzed: lithology, rainfall, land use land cover, soil, drainage density, groundwater level, slope, and topography. The resulting recharge map was validated using Receiver Operating Characteristic (ROC) analysis, incorporating both spring observation points and random data points. Results indicated three recharge categories: good (38%), dominated by lapilli tuff and fractured lava, moderate (35%), located in the western fine tuff zone, and poor (27%), in the central area characterized by massive lava and built-up land. Land use changes from 2019 to 2022 revealed increased settlements and reduced infiltration areas, which contributed to a decline in recharge potential. Groundwater levels from 2012 to 2025 decreased at all measurement points, likely driven by LULC changes and increased abstraction. The study demonstrated the effectiveness of the integrated VES-AHP-GIS approach for mapping recharge zones, providing a scientific basis for targeted groundwater conservation and sustainable resource planning in volcanic catchments.

Page 91 of 91 | Total Record : 905

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