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All Journal Journal of Tropical Soils Journal of Degraded and Mining Lands Management EnviroScienteae Journal of Applied Data Sciences
Saidy, Akhmad Rizalli
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Environmental Science

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ANALISIS LAJU EROSI MENGGUNAKAN METODE UNIVERSAL SOIL LOSS EQUATION (USLE) DAN ANALISIS TINGKAT BAHAYA EROSI Fahruddin, Moh Zely; Saidy, Akhmad Rizalli; Mizwar, Andi; Badaruddin, Badaruddin
EnviroScienteae Vol 19, No 3 (2023): ENVIROSCIENTEAE VOLUME 19 NOMOR 3, AGUSTUS 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v19i3.17282

Abstract

Changes in properties of reclaimed-mine soil, plant growth, and metal accumulation in plants with application of coal fly ash and empty fruit bunches of oil palm Saidy, Akhmad Rizalli; Priatmadi, Bambang Joko; Septiana, Meldia; Ratna, Ratna; Fachruzi, Ismet; Ifansyah, Hairil; Hayati, Afiah; Mahbub, Muhammad; Haris, Abdul
Journal of Degraded and Mining Lands Management Vol. 11 No. 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.113.5767

Abstract

Reclaimed-mining soil (RMS) is characterized by low fertility, acidic pH, and high heavy metal contents. As a result, adding amendments becomes essential to support plant growth. Therefore, this research measured alterations in the characteristics of RMS, plant growth, and metal accumulation in plants with the co-application of coal fly ash (CFA) and empty fruit bunches of oil palm (EFBOP). In the first experiment, various levels of CFA (0, 75, and 150 Mg ha-1) and EFBOP (0, 25, and 50 Mg ha-1) were added to the RMS and then incubated at 70% water holding capacity for 45 days to determine their effect on changes in soil properties. In the second experiment, four treatments: control, CFA, EFBOP, and CFA+EFBOP were tested in the greenhouse to quantify their effects on the growth and metal accumulation of plants. Results of the study showed that the co-application of CFA and EFBOP significantly affected bulk density, pH, mineral nitrogen (NH4+ and NO3-), available phosphorus, and exchangeable Ca and Mg in RMS. CFA application increased exchangeable Al by 82-160%, while EFBOP resulted in a decrease of 24-119%. CEC decreased with CFA application and increased with the use of EFBOP. Plant growth increased with the co-application of CFA and EFBOP. The addition of CFA to soils results in increasing metal contents in plant tissue; however, the presence of EFBOP reduced the concentrations of metal in plant tissue. These results highlight the potential of CFA and EFBOP, which are industrial and agricultural wastes, as valuable soil amendments.
Design of Green City with Lower Carbon based on Vegetation in Banjarbaru using Sentinel-2 Nirwana, Hanifah Dwi; Saidy, Akhmad Rizalli; Hatta, Gusti Muhammad; Nugroho, Agung
Journal of Applied Data Sciences Vol 5, No 2: MAY 2024
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v5i2.218

Abstract

In addressing the pervasive issue of Urban Heat Islands (UHI) and the related carbon sequestration challenges in urban settings, this study utilizes Sentinel-2 imagery to propose a vegetative blueprint for the design green city with lower carbon in Banjarbaru. This research intricately links the role of increased vegetation cover in mitigating UHI effects and enhancing carbon absorption in urban environments. By employing a combination of Geographic Information Systems (GIS), field data, and real-time data via Wireless Sensor Networks (WSN), the study highlights the significant cooling and environmental benefits of strategically increasing green spaces in urban areas. Moreover, the study identifies specific zones within Banjarbaru that are optimal for the strategic placement of vegetation to maximize thermal comfort and carbon storage. This focus on localized green infrastructure development not only provides a pathway to more sustainable urban living conditions but also serves as a model for other cities facing similar ecological and climatic challenges. The integrated approach adopted here emphasizes continuous monitoring and dynamic adjustments in urban planning, ensuring long-term sustainability and resilience against the ongoing threats posed by climate change and urban expansion.
Relationship between Water Content and Mineralization of Carbon and Nitrogen in Soils Varying in Physical and Chemical Characteristics Saidy, Akhmad Rizalli
JOURNAL OF TROPICAL SOILS Vol. 18 No. 1: January 2013
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2013.v18i1.45-52

Abstract

An understanding on relationship between water content and mineralization of carbon (C) and nitrogen (N) across soils varying in physical and chemical characteristics is required to assess the influence of soil physico-chemical properties on soil organic matter decomposition. However, such information is rarely available. Relationship between C and N mineralization of three soils varying in physico-chemical properties with different measurements of water content (water-filled pore space, gravimetric water content, volumetric water content, and water holding capacity) was studied through an incubation experiment for 8 weeks. Results of the experiment showed that C and N mineralization increased with increasing water content, reached a maximum, and then decreased with subsequent increasing water content levels. Maximum C and N mineralizations were observed at 70-80% and 50% water-filled pore space (WFPS),  respectively. The ranges of WFPS for C and N mineralization were the narrowest among other measurements of water content. Therefore, it was likely that a single WFPS could be used in subsequent incubations to examine either C or N  mineralization of soils with different characteristics. Result of this study suggests that the preliminary experiment on the   relationship between mineralization of C and N and water content is necessary to do where mineralization is needed to be assessed in soils that have different physico-chemical  characteristics.Keywords: Carbon and nitrogen mineralization, percent of water-filled pore space, water content[How to Cite : Saidy AR. 2013. Relationship between Water Content and Mineralization of Carbon and Nitrogen in Soils Varying in Physical and Chemical Characteristics. J Trop Soils, 18 (1) : 45-52. doi: 10.5400/jts.2013.18.1.45][Permalink/DOI: www.dx.doi.org/10.5400/jts.2013.18.1.45]
Co-Authors Abdul Haris Afiah Hayati Badaruddin Badaruddin Bambang Joko Priatmadi Fachruzi, Ismet Fahruddin, Moh Zely Gusti Muhammad Hatta Hairil Ifansyah Meldia Septiana Mizwar, Andi Muhammad Mahbub, Muhammad Nirwana, Hanifah Dwi Nugroho, Agung Ratna Ratna