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INDONESIA
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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Groundwater quality assessment using groundwater pollution index (PIG) and non-carcinogenic human health risk assessment of fluoride and nitrate (HHR) in a semi-arid region of Mascara (northwestern of Algeria) Benamina, Benyelkhlef; Bentabet, Abdelkader; Azzaz, Habib; Dahmani, Ali; Hamimed, Abderrahmane
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7705

Abstract

This article discusses nitrate and fluoride contamination and potential health risks for men, women, and children in the Mascara region (northwestern Algeria). To achieve this objective, the Groundwater Pollution Index (PIG) was used to assess the health risks caused by fluoride and nitrates in water. The concentration of nitrate varied, between 2 and 144 mg/L, was observed, with 44% of samples exceeding the WHO permitted limit of 50 mg/L. The study revealed that groundwater with high F concentration is found in evaporite formation as well as cultivated soils. In the studied points, fluoride concentrations range from 0.06 to 3.06 mg/L, with 11% of groundwater exceeding the fluoride guidelines (1.5 mg/L). However, 52%, 58%, and 61% of the region's waters are considered to be at high risk for men, women, and children, respectively, according to the distribution of HQNO3 risk quotient values. The HQF values ??were highest for children (an average of 0.60) and women (an average of 0.52), followed by the lowest values ??for men (an average of 0.45. HHRA results show that 69% of the region's water is considered to pose a high risk for men and women and 78% children respectively. It was observed that nitrate levels have a greater impact on the waters of the region. The calculated PIG values ??range from 0.35 to 1.15, which classifies 95% of the current study area in the insignificant pollution zone (PIG: < 1.0), and the rest (5%) in the low pollution zone (PIG: 1.0 to 1.5).
Enhancing composting efficiency: Impact of microbial consortia on cow manure decomposition Priyadi, Priyadi; Rahmadi, Rizky; Rochman, Fajar; Dulbari, Dulbari; Sari, Evi Yunita; Buana, Arum Sekar; Sudrajat, Denny; Surahman, Suryansyah
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7659

Abstract

Composting organic waste is significantly gaining attention as a sustainable and environmentally friendly material. This is because the use of microorganisms or microbial consortia in the composting process can enhance the quality of compost. Therefore, this study aimed to examine the impact of microbial consortia on cow manure composting efficiency and nutrient content. The experiment was conducted at the Polinela Organic Farm, Department of Food Crop Cultivation. A randomized block design was used with multiple treatments combining fresh cow manure and microbial inoculants, including catalyst, Bacillus, and Trichoderma. The parameters evaluated were the effects of water content, pH, temperature fluctuations, and macronutrient levels on composting, including nitrogen, phosphorus, and potassium. The results showed that microbial consortia significantly improved composting parameters such as moisture retention and temperature as a function of higher doses?of the inoculum. The highest total nitrogen (3.6%) and potassium (1.67%) content were obtained from Trichoderma treatment,?while the highest phosphorus (0.47%) content was obtained from Bacillus treatment. This?implied that microbial consortia could improve the quality and availability of composted nutrients in addition to the effectiveness of agricultural waste management and soil fertility practices. However, more research should be conducted?to determine the optimal microbial mixtures for various conditions of composting and the quality of the best compost produced.  
Land management and conservation of the habitat of Bruguiera hainesii C.G. Rogers in Vietnam Pham, Mai Phuong; Hoang, Thi Thu Trang; Nguyen, Xuan Dao; Nguyen, Quoc Khanh; Vu, Dinh Duy
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7753

Abstract

Comprehending the bidirectional interactions between ecosystems and plant communities is essential for ensuring the conservation and sustainable development of Bruguiera hainesii. The study identified nine accompanying plant species within a range of 1.2-5.5 m, including five frequently encountered species and four commonly found ones. The research site is influenced by two distinct wind seasons: the Northeast monsoon (November to April) and the Southwest monsoon during the rainy season, with an average wind speed of 1.77 m/s. Correspondingly, the wave regime alternates with these seasons, featuring opposing directions. During the Northeast monsoon, wave heights average 2-2.5 m, while during the Southwest monsoon, they decrease to 1.5-1.7 m. The tidal regime in Con Dao is mixed semi-diurnal, with tidal ranges of 3-4 m at high tide and 1.5-2 m at low tide. Tidal currents primarily drive the flow regime, with dominant Northeast flow during early summer and seasonal shifts between winter and summer. Flow velocities range from 0.15 to 0.92 m/s, influenced by the Manning roughness coefficient. Sediment dynamics reveal that increased settling velocities correlate with higher suspended sediment concentrations, with total suspended sediment at point P1 approximately 70% greater than at point P2. These findings elucidate the seasonal and hourly dynamics of tidal waves and sediment transport, offering critical insights to support the effective conservation of B. hainesii.
Land characterization and management in the marine-volcanic area of Mount Semeru, Indonesia: A case study of sugarcane commodities Basuki, Basuki; Adib , Affan Rizwanda; Destiawan, Hisyam Azhar; Sari, Vega Kartika
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7765

Abstract

Indonesia has targeted achieving national sugar self-sufficiency in 2035 through intensification and extensification. Marginal land, including in geological formation areas originating from marine-volcanic influences, is considered for utilization. Efforts to increase the productivity of sugarcane cultivation land on marginal land require an evaluation of the suitability of varieties and fertilizer inputs. The study aimed to characterize and manage land in the marine-volcanic area of ??Mount Semeru for sugarcane cultivation. The method used to answer the challenges of marginal land for sugarcane cultivation was divided into stages: environmental identification, climate identification, soil characteristic identification, resistant typology evaluation, sugarcane maturity type evaluation, variety suitability identification, and fertilizer dosage. The results of the study showed that marine-volcanic land can be utilized for sugarcane cultivation to produce high productivity above 80 t/ha by placing location-specific varieties and appropriate fertilizer management. Environmental and soil characteristics include rainfall of >2,000 mm/year and flat-sloping land topography dominated by an average sand texture fraction of > 30%. The appropriate varieties are Kidang Kencana, Bululawang/, NXI 4T, VMC 76-16, VMC 86-550, and NX03. The type of maturity of sugarcane varieties at the research location partly changed, such as the NX03 and VMC 76-16 varieties, which were originally middle-late ripe and changed to early-middle, which affected the fertilizer given at each location and the influence of clay percentage. The amount of fertilizer in the research area on average for plantcane was 151.75 kg/ha, 62 kg/haP2O5, and 103.5 kg/haK2O, and for ratoon 227.63 kg/ha, 38 kg/haP2O5, and 146.5 kg/haK2O.
Slope stability analysis by integration of seismic refraction method and geotechnical soil testing: Case study of landslide in Bulobulo Village, Barru Regency, Indonesia Sam, Dwi Nurfajriana; Massinai, Muhammad Altin; Pramatadie, Andi Muhamad
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.123.7779

Abstract

This research investigated slope stability issues in Bulobulo Village, Barru Regency in Indonesia, which is known to experience very high landslide occurrences, particularly in steep slopes with seasonally altered overburden rocks through refraction seismic method and geotechnical analysis. This study conducted mechanical and physical soil tests in the laboratory, and the geophysics study investigated subsurface configuration. The set of data collected also reflected some seismic velocity anomalies, which are signs of variations in the arrangement of the substructure. A geotechnical investigation of the slope showed low cohesiveness and high water content, which were detrimental to stability. The factor of safety (FoS) calculated using the limit equilibrium technique established some slopes as being in a critical state and, hence, at risk of landslides. Such integration of methods allows one to make data-driven proposals for landslide prevention and provides a comprehensive comprehension of slope performance.
Geo-engineering characterization of mining material: A case study in Yogyakarta, Indonesia Budianta, Wawan; Warmada, I Wayan; Hideki, Ohta; Takemura, Jiro
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7839

Abstract

The extraction and processing of aggregates in quarrying operations leads to environmental degradation through various engineering methods. This study investigated the geo-engineering properties of tertiary volcanic rocks mined from various sites in Sleman and Bantul District, Yogyakarta Province. A total of twelve rock samples were obtained from the study area. This study conducted mineralogical and geotechnical engineering investigations, including microscopic analysis, unconfined compressive strength (UCS) tests, abrasiveness tests (CAI), and rock abrasivity index (RAI) calculations. Mineralogical observation using polarisation microscopy indicated that the rock samples consist of quartz, plagioclase, lithic fragments, and volcanic glass. The UCS test showed varying rock strengths due to resistant minerals in the samples. Similarly, the CAI values varied and were influenced by the quartz mineral content, which is representative of resistant minerals. The Rock Abrasivity Index (RAI) calculation classified the samples as less abrasive, and this characteristic is also affected by quartz content. A significant correlation was observed between the quartz mineral content and the UCS, CAI, and RAI values. This relationship suggests that the quartz mineral content substantially affects the UCS, CAI, and RAI values of the rock samples in the study area. The findings of this study can be used to enhance mining practices and minimize their ecological impact.
The effect of organic fertilizer application on phytoremediation of heavy metals-contaminated rice fields using Cordyline fruticose and Excoecaria cochinchinensis Karamina, Hidayati; Barunawati, Nunun; Kurniawan, Syahrul; Maghfoer, Moch Dawam
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7789

Abstract

Inadequate industrial waste management has led to heavy metal contamination in agricultural lands, threatening food productivity and sustainability. This study aimed to evaluate the effect of organic fertilizer application on the phytoremediation of heavy metals (Pb and Cd) contaminated rice fields surrounding the industrial area of Pagak, Malang Regency. The study was initiated by identifying the distribution of Pb and Cd in soil, water, and rice plants. The soil identified with the highest Pb and Cd concentrations was then subjected to a phytoremediation experiment using Cordyline fruticose and Excoecaria cochinchinensis as metal accumulator plants. Organic fertilizers used for the evaluation of the phytoremediation effectiveness were chicken manure, Thitonia, and sugarcane waste. Phytoremediation effectiveness was evaluated based on the Bioaccumulation Factor (BAF) and Translocation Factor (TF). The results of the soil characterization study showed that Pb and Cd concentrations at soil depths of 0-20 cm and 20-40 cm exceeded the permissible limits, with Pb concentrations ranging from 41.62 to 74.93 ppm and Cd concentrations ranging from 0.58 to 1.10 ppm. The results of the phytoremediation experiment showed that Cordyline fruticose exhibited higher Pb and Cd absorption capacity than Excoecaria cochinchinensis at 30 and 60 days after planting), indicated by BAF values of >1. In all treatments, however, both plant species have TF values of <1, indicating that the two plant species are considered suitable for phytostabilization as heavy metals in the soils were more concentrated in the plant roots rather than in the plant shoots.
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.
The impact of sand and clay substratum types on the properties of tropical peat soils and oil palm (Elaeis guineensis) production Naspendra, Zuldadan; Hijri, Nurul; Awalina, Rahmi; Harianti, Mimien; Hermansah, Hermansah
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7817

Abstract

Research on peatlands has become increasingly interesting in recent years, particularly in tropical regions. In these regions, including Indonesia, peatlands develop over sand and clay substrata and are widely utilized for oil palm cultivation. However, the influence of substratum type on palm yield remains poorly understood. This study aimed to a) investigate the morphological and physical characteristics of peat soils formed over sand and clay substrata and b) examine the relationship between peat soil substratum types (sand and clay) and oil palm production. Soil samples were collected from three blocks of an oil palm plantation in Pesisir Selatan, West Sumatra, and then were analyzed in a soil laboratory. Additionally, fresh fruit bunch (FFB) yield data from the past six years for each block were also collected from the plantation records. The results indicated that peat soil formed over clay substratum (L) was more mature (sapric), with lower fiber content, higher ash content, lower organic matter content, higher moisture content, and higher pH compared to peat soils formed over sand substratum (P1 and P2). The average annual fresh fruit bunch production from palms cultivated on peat soil with a clay substratum (19.68-20.85 t/ha/yr) was 11-16% higher than that of palms on peat soil with sand substratum (23.52 t/ha/yr). Among the peat soil properties analyzed, water content, ash content, and soil pH had the most significant positive effects on oil palm production. These findings highlight the critical role of substratum type in influencing oil palm yield.
The potential of phosphate solubilizing microorganisms (PSM) isolated from different ecosystems on calcareous soils in Timor Island, Indonesia Adu Tae, Anthonius S. J.; Nur, Mahmuddin S.M.; Benggu , Yoke Ivonny; Ishaq, Lily F.; Soetedjo, I N. Prijo; Widinugraheni, Sri; Kasim, Muhammad
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7803

Abstract

The study was conducted in three different ecosystems: mamar (a typical local ecosystem close to water catchment areas), farm, and coastal ecosystems. In each ecosystem, soil samples were taken from the rhizosphere of five different plants to investigate the occurrence of PSM, molecularly identify the potential isolates, and evaluate their ability to increase soil phosphorus (P) availability and mungbean yield. The highest population of phosphate-solubilizing bacteria (PSB) was found in the mamar ecosystem. Phosphate-solubilizing fungi were only found in the farm and coastal ecosystems, with low populations, and restricted to the rhizosphere of a few plants. The number of PSB isolates was higher in the coastal ecosystem, followed by the farm and mamar ecosystems. The phosphate solubilizing index of the isolate was quite high, ranging from 210 to 300. One isolate from the five molecularly selected isolates from Kupang regency was identified as Aspergillus sp. (cassava rhizosphere origin), one isolate from the farm ecosystem (Moringa rhizosphere origin), and three isolates from the coastal ecosystem (Jatropha gossypiifolioa, Scheichera oleosa and Calotropis gigantea L. rhizosphere origin) were all identified as Pseudomonas sp. Two selected isolates from a previous study in Timor Tengah Selatan regency, collected from the mamar ecosystem (bamboo and Leuchaena leucocephala rhizosphere), were both identified as Acinetobacter baumannii. Inoculation of PSB resulted in higher available soil P compared to the uninoculated treatment. PSB inoculation also provided higher tissue P than the uninoculated treatment. PSB from coastal areas gave the highest pod weight and seed weight compared to other inoculation treatments.  

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