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All Journal Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science
Rahmah Dewi Yustika, Rahmah Dewi
Balai Penelitian Tanah
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Sustainability Status of Peatland in Different Types of Land Use Yustika, Rahmah Dewi; Tyasmoro, Setyono Yudo; Suratman, Suratman
AGRIVITA Journal of Agricultural Science Vol 47, No 2 (2025)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v47i2.4734

Abstract

Peatlands are fragile ecosystems, making any utilization susceptible to changes that can disrupt the balance of natural resources and the environment. Three critical aspects that play a significant role in preserving peatland ecosystems (ecological, economic, and social) must be carefully considered in peatland use. A study of biophysical data and peatland usage was conducted in Pelalawan District, Riau Province, Indonesia, followed by a quantitative analysis of sustainability using Multidimensional Scaling (MDS) with the support of modified Rapfish software, referred to as Rapid Appraisal for Peat (RapPeat). The study aimed to assess the sustainability level of various peatland land use types and identify leverage attributes for targeted interventions to improve sustainability status. The research findings suggest that the peatland areas are less sustainable across these three assessed dimensions. The ecological dimension was the most sustainable, followed by the economic and social dimensions. Rubber and oil palm plantation land use types are more sustainable than the other land use types. Improving peatland sustainability involves targeted actions on leverage attributes to facilitate more sustainable practices across all dimensions.
Spatial distribution of water quality in water bodies influenced by agricultural activities Yustika, Rahmah Dewi; Sukarjo, Sukarjo; Dewi, Triyani; Yustiawati, Yustiawati; Handayani, Cicik Oktasari; Yanti, Delvi; Dariah, Ai
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.2025.124.8367

Abstract

Agriculture is a major contributor to non-point source pollution due to the intensive use of agrochemicals. This study examined the spatial distribution of pollutants from agricultural activities in the Sumani sub-catchment, West Sumatra, Indonesia, which drains into Lake Singkarak. Thirteen water quality parameters were measured, including electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), dissolved oxygen (DO), sulfate, nitrate, calcium, sodium, total phosphorus (TP), potassium, magnesium, chlorpyrifos, and mancozeb. Results showed significant variation in water quality across the sampling sites. Downstream areas had higher levels of TSS, TDS, and major ions, mainly due to agricultural and urban activities. The lowest TSS levels were recorded at a site within the lake, likely due to sediment settling. River water generally met drinking water standards; however, TP and DO concentrations in the lake exceeded regulatory limits, potentially influenced by floating net cage aquaculture. Principal Component Analysis identified three main sources of pollution: agricultural activities (34.87%), combined agricultural and urban influences (20.15%), and soil erosion (12.15%). These findings highlight the need for better erosion control, sustainable farming practices, and consistent water quality monitoring. Further research is crucial to understand the long-term effects of agriculture on water resources and to develop strategies that reduce environmental impacts.
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.
Co-Authors AI DARIAH Budi Mulyanto Dwi Putro Tejo Baskoro Handayani, Cicik Oktasari Iskandar Iskandar JUBAEDAH JUBAEDAH, JUBAEDAH Maswar Maswar Neneng Laela Nurida Setyono Yudo Tyasmoro Sukarjo Sukarjo, Sukarjo Suratman Suratman Triyani Dewi Yanti, Delvi Yustiawati, Yustiawati