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Typology of artisanal and small-scale gold mining sites along the Singingi River, Riau Province Okalia, Deno; Iskandar; Mulyanto, Budi; Sudadi, Untung
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.2025.125.8719

Abstract

Artisanal and small-scale gold mining (ASGM) in the Singingi Watershed has precipitated a multifaceted transformation of the landscape, resulting in severe geomorphological, sedimentological, and hydrological alterations. This study leveraged an integrative quantitative descriptive framework and advanced spatial analysis to systematically delineate post-mining land typologies along a 51.25 km stretch of the watershed, using high-resolution remote sensing data and validation from 243 strategically distributed sample points. Eight distinct land typologies (A-H) were identified based on detailed assessments of topographic attributes, particle size distribution, pit depth, and tailing mound characteristics. Notably, typology H—characterized by a flat terrain (slope <8%), shallow pit depths and tailing mound heights (<2 m), and a predominance of fine-textured soils—emerged as the most amenable to passive reclamation and natural vegetation regeneration. Overlay analyses further demonstrated that Sungai Paku Village harbors the largest expanse of typology H (108.16 ha), underscoring its critical priority for reclamation interventions. These findings provide a robust, evidence-based foundation for the development of adaptive reclamation strategies, offering valuable insights for restoring ecological and physical functions in mining-impacted environments. The study underscores the importance of integrating multidisciplinary spatial data to inform sustainable land management practices in regions severely affected by ASGM activities and as a reference for the community for reclamation priorities based on land typology.
Biomaterial Geotextile Berbahan Biomassa untuk Meningkatkan Produktivitas Pertanian di Desa Sidorejo Kabupaten Bojonegoro Nikmatin, Siti; Husin, Abd Djamil; Mulyanto, Budi; Adiati, Rima Fitria
Jurnal Pengabdian UNDIKMA Vol. 6 No. 2 (2025): May
Publisher : LPPM Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jpu.v6i2.15360

Abstract

This community service program aims to develop sustainable geotextiles made from local biomass. It involves training farmers in their production as an effort to reduce plastic use, improve soil health, and increase yields of papaya and chili crops. This community service implementation uses a participatory approach targeting farmers who are members of the "Karya Tani" farmer group in Desa Sidorejo, Bojonegoro Regency, East Java, with a total of 25 participants. The results of this service indicate that plastic mulch can be replaced with geotextiles made from local biomass in maintaining soil moisture, weed control, sunlight absorption, and water management. The best results were obtained from coconut coir geotextiles compared to straw, yielding 500 kg of papaya harvest from a 0.25-hectare plantation. Ultimately, this community development project aims to promote sustainable agriculture, empower rural communities, and contribute to a circular economy.
ANALISIS KESENJANGAN PADA PELAYANAN PENDAFTARAN TANAH PERTAMA KALI DI KANTOR PERTANAHAN KOTA BEKASI Sukirno, Nono; Mulyanto, Budi; Hakim, Dedi Budiman
Jurnal Ilmu Keluarga dan Konsumen Vol. 8 No. 2 (2015): Jurnal Ilmu Keluarga dan Konsumen
Publisher : Department of Family and Consumer Sciences, Faculty of Human Ecology, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.913 KB) | DOI: 10.24156/jikk.2015.8.2.106

Abstract

In order to increase service performance of government agencies, the stakeholders have to pay attention to the satisfaction of the public it serves. This study aimed to determine the level of public satisfaction and further willbe analyzed the gap between service performances of the agency and public satisfaction to the service of Land Office of Bekasi City. This research was conducted at the Land Office of Bekasi City; held from March to June 2014. The design used in this study was a cross-sectional study. The samples were chosen by convenience sampling technique. Analysis of the gap was measured by Importance Performance Analysis (IPA). The results showed that the quality of land registration services that was provided by the Land Office of Bekasi City had not meet people's satisfaction. This was indicated by the difference between the average score of the service performance (3,22) and an the average score of the expectations (3,77). This finding showed a gap of -0,55 that means the service performance of the agency still lower that public expectation for the services. Moreover, punctuality was indicator that that had high gap score between the service performance and public satisfaction. Therefore, Land Office of Bekasi should have a policy to discipline its employees to be on time in service of land registration.
Relationship between NDVI and soil physicochemical properties in the Martabe gold mine reclamation area, Indonesia Alfina, Rina; Iskandar, Iskandar; Suryaningtyas, Dyah Tjahyandari; Mulyanto, Budi; Nugraha, Candra; Asman, Auzia; Novfirman; Anwar, Syaiful; Pulungan, Yuni Hartinah
Journal of Degraded and Mining Lands Management Vol. 13 No. 2 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.132.9929

Abstract

Open-pit gold mining has greatly affected the ecological balance by altering soil properties and reducing natural vegetation cover. Reclamation efforts through soil and vegetation recovery are therefore essential to help rebuild the disturbed ecosystem. This study examined how the Normalized Difference Vegetation Index (NDVI) relates to soil physicochemical properties in the Martabe gold mine reclamation area, North Sumatra, Indonesia. Vegetation recovery at different reclamation ages was analyzed using multitemporal Landsat 8 images. Soil samples were taken from the same locations at depths of 0-15 cm and 15-30 cm to observe changes in soil characteristics. Data were analyzed using Principal Component Analysis (PCA) to identify the main factors linking vegetation and soil conditions. Key ecological indicators were determined through the Minimum Data Set (MDS) approach. The PCA results indicated that the primary components explained 90.7% of the variation in soil physical properties and 74.6% of the variation in chemical properties. Important indicators of the ecological recovery were NDVI, bulk density, porosity, aggregate stability, organic carbon, total nitrogen, cation exchange capacity (CEC), and base saturation. The rise in NDVI values coincided with improved soil conditions, showing a relationship between vegetation re-growth and soil quality improvement.
Maize nutrient translocation on artisanal gold mining soil ameliorated with EFB compost, clay, and lime Deno Okalia; Iskandar; Budi Mulyanto; Untung Sudadi
JOURNAL OF TROPICAL SOILS Vol. 31 No. 2: May 2026
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts..v31i2.71-81

Abstract

Artisanal gold mining generally produces coarse-textured soils with low nutrient-holding capacity, which limit plant growth and productivity. Soil reclamation in these conditions necessitates not only improved soil quality but also effective nutrient uptake and allocation within the plant. This study aims to evaluate the effects of oil palm empty fruit bunch (EFB) compost, clay soil, and lime, used as soil conditioners, on the concentrations of N, P, and K in various maize organs grown in soil formerly used for artisanal gold mining. The study was conducted in experimental pots using a completely randomized factorial design (CRF) with three factors: A) EFB compost at 6, 12, and 18 t ha-1; B) clay at 10 and 20%; and C) lime at 0.5 and 1.0 t ha-1. After harvest, maize plants were separated into roots, stems, leaves, and grain, and tissue concentrations of N, P, and K were determined. The results showed clear organ-specific patterns of nutrient accumulation. The highest N concentration was found in the grain (1.95%), the highest P in the roots (0.37%), and the highest K in the leaves (3.07%), all under treatment A3B1C1 (18 t ha-1 of EFB compost, 10% clay, and 0.5 t ha-1 of lime). The findings suggest that using EFB compost, clay soil, and lime together can effectively improve nutrient availability, uptake, and partitioning in maize grown on post-gold mining soil. This strategy has the potential to support the productive reuse of degraded artisanal gold mining land.
Soil fertility based on mineralogical properties to support sustainable agriculture management Hidayat, Wahyu; Suryaningtyas, Dyah Tjahyandari; Mulyanto, Budi
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 21, No 1 (2024): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v21i1.85502

Abstract

Detailed information on soil mineral composition has been crucial in providing the basis for designing sustainable agricultural practices, as this information offers long-term insights into natural soil fertility. This research aimed to further investigate the characteristics of soil mineral composition as a basis for managing soil fertility. Three soil profiles representing three different parent materials have been examined in the field, and soil samples have been collected for laboratory analysis. Profile 1 originates from the Raung Volcano Rock Formation (Qhvr). Profile 2 originates from the Sukamade Formation (Toms). Profile 3 originates from Puger Formation (Tmp). The presence of Mount Raung volcanic influence results in distinct soil characteristics in Profiles 2 and 3 compared to typical sedimentary and karst rock soils. The sand fraction minerals in all three profiles are predominantly composed of opaque minerals, followed by rock fragments, ferromagnesian mineral series (olivine, augite, hypersthene, and hornblende), plagioclase minerals (anorthite, biotite, and labradorite), iron concretions, epidote, and tourmaline. The clay fraction minerals in all three profiles consist of illite, kaolinite, and quartz. The minerals illite and ferromagnesian groups in all three profiles play a significant role in increasing the availability of potassium, calcium, and magnesium nutrients, thereby reducing the need for fertilizers for these elements. The soils in all three profiles naturally possess good fertility; however, designing a sustainable agricultural system requires consideration of the morphology, landform, and climate of all three profiles.
Optimalisasi Peran Pemerintah Melalui Badan Bank Tanah Sebagai Land Manager Negara Dalam Pengelolaan Penyediaan Tanah Bagi Kepentingan Pembangunan: Optimising The Government Role Through Indonesia Land Bank Authority As The State Land Manager In Managing Land Provision For Development Himawan Arief Sugoto; M. Syamsul Maarif; Budi Mulyanto; Harianto
Jurnal Aplikasi Bisnis dan Manajemen Vol. 10 No. 1 (2024): JABM, Vol. 10 No. 1, January 2024
Publisher : School of Business, Bogor Agricultural University (SB-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17358/jabm.10.1.275

Abstract

The limited availability of land and the high price of land make it difficult for the government to carry out sectoral development. To overcome this problem, the government has established a special agency (sui generis) in 2021, the Indonesia Land Bank Authority. The purpose of this study is to conduct a study of the regulations and legal entities that manage the provision of land using the Regulatory Impact Assessment (RIA) research method. The scope of the study is limited to regulations and institutions related to land provision management, namely Perumnas, BP Batam, Land Bank Agency and Private Enterprises. The results show the limited role of the Ministry of ATR/BPN and the suboptimal role of various forms of institutions as state land managers in managing land supply, especially in relation to overlapping land acquisition functions in existing agencies. In conclusion, this research proposes a policy that the only appropriate institution as the State Land Manager is the Land Bank Agency due to its specificity (sui generis), which can flexibly carry out public and private interests in land supply management. However, in its implementation, this agency needs regulatory support to effectively become the state land manager, namely through a one-door policy for the government's land acquisition function. Keywords: state land manager, Indonesia land bank authority, ria, public and private interest, land provision management
Application of Filter Cake on Growth of Upland Sugarcanes , Purwono; Didy Sopandie; Sri Setyati Harjadi; Budi Mulyanto
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.246 KB) | DOI: 10.24831/jai.v39i2.13197

Abstract

Recently planting site of sugarcane was shifted from lowland to upland area. Sugar cane cultivation in upland has many constraints, especially limited water supply and low nutrition availability. The objectives of this research were to study the influence of application of composted filter cake on growth and water use efficiency of upland sugar cane. The research was conducted in Jengkol, Kediri. Treatments consist of three factors: frequency of irrigation (once every 1 week, once every 2 weeks, and once every 3 weeks); sugarcane varieties (PS-862 and PS-864); and compost doses (0, 2.5, 5, and 7.5 ton ha-1). Split plot design with three replications was used in each irrigation treatment, using composted filter cake as main plots and sugarcane varieties as sub plots. The results showed that the highest sugar content was reached at application of 5 ton ha-1 compost and the greatest crystal sugar was reached at 3.09 ton ha-1 compost. Compost application at 5 ton ha-1 on each planted row can reduce frequency of irrigation from once a week to once every 2 weeks.