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Konversi Hutan Menjadi Tanaman Kayu Manis dan Kopi terhadap Kemantapan Agregat Andisol di Kecamatan Lembah Masurai Kabupaten Merangin Nasution, Hasriati; Suryanto, Suryanto; Saad, Asmadi
Bulletin of Community Engagement Vol. 4 No. 1 (2024): Bulletin of Community Engagement
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bce.v4i1.1065

Andisol is soil located in volcanic mountain areas with the characteristics of black or dark soil and is formed from volcanic ash. The main problem is that Andisol soil has andic properties if the soil is dry, the soil does not easily absorb water anymore and the aggregate stability is low so it is easy for soil particles to be eroded from the hill. andosol. The aim of the research was to examine the influence of cinnamon and coffee plants on the stability of Andisol aggregates, relatively similar to forest soil. The usefulness of research on cinnamon and coffee plants is expected to be able to replace forest vegetation in the physical properties of Andisol soil. The research was carried out in Lembah Masurai District, Merangin Regency. at an altitude of 1300 m above sea level with the Andisol type. The research was carried out over 4 months in 2024. Soil analysis was carried out at the Soil Physics and Chemistry Laboratory, Faculty of Agriculture, Jambi University. Soil sampling to determine soil aggregate density, organic matter content, bulk volume and soil permeability was carried out by survey using the Proportive Random Sampling method in areas planted with cinnamon, coffee, cinnamon mixed with coffee plants and forest soil on a slope of 8% - 15 %. The parameters observed were organic matter content, permeability, soil volume weight, total pore space, aggregate percentage, soil aggregate stability. Each treatment was repeated 15 times. To differentiate the physical properties of Andisol, cinnamon, coffee, cinnamon mixed with coffee and forest soil were planted. carried out with the Unpaired Middle Value Test at the 5% level (Steel and Torrie, 1995). From the results of the Unpaired Middle Value Test, it was found that replacing forest with cinnamon plants, the organic matter content, aggregate percentage, and aggregate stability were the same as forest soil but different from coffee plantings and mixed cinnamon and coffee plantations. Keywords: Forest Conversion to Cinnamon, Stability of Andisol, Andisol

Pengaruh Curah Hujan terhadap Tinggi Muka Air Tanah Gambut Saat Fenomena El Nino di Sub Kesatuan Hidrologis Gambut Sungai Mendahara-Sungai Lagan Suwananda, Erik; Saad, Asmadi; Aswandi, Aswandi
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 3 (2024): Oktober
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i3.5531

This research aims to analyze the effect of rainfall on the peat groundwater level (GWL) in the Mendahara River-Lagan River Peat Hydrological Sub Unit (sub KHG) during the El Nino phenomenon. The analysis was carried out using a simple linear regression method on 3 dominant land covers, namely private oil palm plantations, community oil palm plantations and secondary swamp forests, where 2023 is an El Nino year. The results of the research show that in the year private oil palm plantation land cover had the strongest influence on the amount of rainfall distribution compared to community oil palm plantation land cover and secondary swamp forest with R2 values of 76.14%, 58.03% and 51,42%. The value of the coefficient of determination (R2) means that the dynamics of TMAT fluctuations can be explained by the amount of rainfall distribution, while the rest is influenced by other variables not studied.

EFFECTS OF INITIAL SOIL CARBON AND METAL CONTENTS ON SORPTION OF DISSOLVED ORGANIC CARBON ON THE SOILS OF TROPICAL RAIN FOREST TRANSFORMATION SYSTEMS Ngatijo, Ngatijo; Muhammad, Damris; Saad, Asmadi; Bakar, Abu; Hamidah, Wanda
Analit : Analytical and Environmental Chemistry Vol. 6, No. 01 April (2021) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v6i1.2021.p12-21

Karbon organik terlarut (DOC) dalam tanah memainkan peran penting dalam distribusi nutrisi dan konsentrasinya dapat dipengaruhi oleh keberadaan partikel mineral tanah. Kandungan karbon tanah awal dapat mengurangi kapasitas tanah untuk menyerap DOC karena adanya tolakan muatan negatif. Penelitian ini mengkaji pengaruh kandungan karbon dan logam tanah awal terhadapa dsorpsi DOC yang ditambahkan pada tanah hutan tropis melalui percobaan batch. Kandungan logam berat tanah (Al dan Fe), total karbon organik dan kandungan DOC tanah ditentukan. Untuk menentukan apakah dan bagaimana variasi kandungan karbon tanah mempengaruhi adsorpsi DOC, maka dua tanah dengan kandungan logam dan karbon yang berbeda (tanah permukaan dan bawah permukaan) dari dua sistem transformasi (hutan tropis sekunder dataran rendah dan perkebunan sawit masyarakat digunakan. Karbon organik terlarut diekstraksi dari permukaan tanah yang kaya organik dengan air dan dipekatkan ketingkat yang diperlukan dan digunakan dalam percobaan batch. Karbon organik terlarut berkorelasi negatif dengan kandungan logam tanah terutama pada sub permukaan tanah. Dengan kandungan organik karbon tinggi korelasinya tidak signifikan. Ini mungkin menjelaskan adanya tolakan DOC yang membawa perubahan negatif oleh partikel tanah kaya organik.http://dx.doi.org/10.23960/aec.v6.i1.2021.p12-21

HUBUNGAN TINGGI MUKA AIR TERHADAP BEBERAPA SIFAT FISIK GAMBUT PADA BERBAGAI UMUR TANAMAN KELAPA SAWIT DI DESA KARYA BHAKTI KECAMATAN RANTAU RASAU KABUPATEN TANJUNG JABUNG TIMUR Nasution, Hasriati; Yusfanety, Yusfanety; Saad, Asmadi; Suryanto, Suryanto
Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian Vol. 8 No. 2 (2025): Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian
Publisher : Jambi University, Fakultas Pertanian, Program Studi Agroekoteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/agroecotania.v8i2.50977

ABSTRACT Over time, peatland is now changing its function into plantation land such as oil palm plantations on peatland. However, in the management of peatland, it is necessary to pay attention to the nature of peat and soil ir levels, including the regulation of groundwater level. Based on the physical properties of peat soil can be used as an indicator in determining the productivity of oil palm plants on peatlands. Where the important karesteritic in peatland is the water content, soil volume weight, the content of organic matter and the ability to withstand the load of subsidence and non-return dry. Oil palm plants (Elaeis guineensis Jacq.) come from Nigeria, West Africa. Yes, oil palm plants thrive outside their native areas, such as Malaysia, Indonesia, Thailand, and Papua New Guinea. Oil palm plants have an important meaning for the development of national plantations. In addition to being able to create job opportunities and lead to the welfare of the community, palm oil is also a source of foreign exchange for the country and Indonesia is one of the main producers of palm oil. This research was conducted in Karya Bhakti Village, Rantau Rasau District, East Tanjung Jabung Regency. Soil analysis was carried out at the Soil Laboratory of the Faculty of Agriculture, Jambi University. The research was conducted by survey using Proportional Random Sampling. The observed parameters are the height of the water level in the soil, the height of the canal water level, the content of organic matter. Volume Weight, Total Pore Space., peat depth, peat maturity. Each age of palm oil plants, 10 samples were taken at three ages of palm oil plantations 0-5 years, 6- 10 years and eleven years and above. Data interpretation on the age of oil palm oil plants 0 - 5 years, 6 - 10 years and > 11 years was carried out using the Unpaired Middle Value Test on the parameters of soil water level, canal water level height, organic matter content, soil volume weight, peat soil water content. To see the relationship between the height of the peat soil water level with several physical properties of the soil, it was carried out using the Simple Regression Test. The results of the study by using the Unpaired Middle Value Test on the parameters of the groundwater level and the height of the canal water level in palm oil aged 0 - 5 years are clearly different from oil palm plants aged 6 - 10 years and palm oil aged > 11 years. Based on the Linear Regression Test, there is a relationship between the water level of the peat soil and the average water level of the canal in the mustard coconut plant as much as R = 73,33% Keywords: Groundwater Level and Physical Properties of Peat, Palm Oil Plants.

The Relationship Between Soil Layer Depth and Macro Nutrients N P K In Oil Palm Plantations In Sungai Tawar Village Tanjung Jabung Timur Regency Nasution, Hasriati; Suryanto, Suryanto; Saad, Asmadi
International Journal on Advanced Science, Education, and Religion Vol 8 No 3 (2025): IJoASER (International Journal on Advanced Science, Education)
Publisher : Sekolah Tinggi Agama Islam Al-Furqan, Makassar - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33648/ijoaser.v8i3.830

Peatland characteristics are an important consideration in land management for agricultural development. As peat depth increases, nutrient availability and microbial activity tend to decline, while soil acidity (pH) increases. Thicker peat layers therefore have a significant influence on soil fertility. Oil palm (Elaeis guineensis Jacq.), originating from Nigeria in West Africa, is widely cultivated in Malaysia, Indonesia, Thailand, and Papua New Guinea. Oil palm plays a strategic role in national plantation development by creating employment opportunities, improving community welfare, and contributing substantially to national foreign exchange earnings, with Indonesia being one of the world’s major palm oil producers. This study was conducted at an oil palm plantation in Sungai Tawar Village, Geragai Subdistrict, East Tanjung Jabung Regency. The research was carried out over four months during 2024–2025. Soil analyses were performed at the Soil Laboratory, Faculty of Agriculture, Universitas Jambi. The study used a survey method with purposive random sampling. Observed parameters included groundwater table depth, soil organic carbon (C-organic), peat depth, macronutrient content (N, P, and K), and peat maturity. Observations were conducted on oil palm stands aged 11 and 16 years, with ten soil sampling replications for each plant age. Data interpretation to identify differences in soil depth and NPK content between oil palm ages was conducted using an independent t-test for C-organic content, N, P, and K levels, groundwater table depth, peat thickness, and peat maturity. The relationship between C-organic content and NPK was analyzed using simple linear regression. Results showed strong correlations between peat layer depth, groundwater level, and nitrogen availability, as well as between soil C-organic content and total nitrogen, available phosphorus, and total potassium across different oil palm ages.

The Relationship Between Soil Layer Depth and Macro Nutrients N P K In Oil Palm Plantations In Sungai Tawar Village Tanjung Jabung Timur Regency Nasution, Hasriati; Suryanto, Suryanto; Saad, Asmadi
International Journal on Advanced Science, Education, and Religion Vol 8 No 3 (2025): IJoASER (International Journal on Advanced Science, Education)
Publisher : Sekolah Tinggi Agama Islam Al-Furqan, Makassar - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33648/ijoaser.v8i3.830

Peatland characteristics are an important consideration in land management for agricultural development. As peat depth increases, nutrient availability and microbial activity tend to decline, while soil acidity (pH) increases. Thicker peat layers therefore have a significant influence on soil fertility. Oil palm (Elaeis guineensis Jacq.), originating from Nigeria in West Africa, is widely cultivated in Malaysia, Indonesia, Thailand, and Papua New Guinea. Oil palm plays a strategic role in national plantation development by creating employment opportunities, improving community welfare, and contributing substantially to national foreign exchange earnings, with Indonesia being one of the world’s major palm oil producers. This study was conducted at an oil palm plantation in Sungai Tawar Village, Geragai Subdistrict, East Tanjung Jabung Regency. The research was carried out over four months during 2024–2025. Soil analyses were performed at the Soil Laboratory, Faculty of Agriculture, Universitas Jambi. The study used a survey method with purposive random sampling. Observed parameters included groundwater table depth, soil organic carbon (C-organic), peat depth, macronutrient content (N, P, and K), and peat maturity. Observations were conducted on oil palm stands aged 11 and 16 years, with ten soil sampling replications for each plant age. Data interpretation to identify differences in soil depth and NPK content between oil palm ages was conducted using an independent t-test for C-organic content, N, P, and K levels, groundwater table depth, peat thickness, and peat maturity. The relationship between C-organic content and NPK was analyzed using simple linear regression. Results showed strong correlations between peat layer depth, groundwater level, and nitrogen availability, as well as between soil C-organic content and total nitrogen, available phosphorus, and total potassium across different oil palm ages.

Hubungan Kadar C-Organik Tanah Gambut Terhadap Ketersedian Unsur Hara Makro N P K di Perkebunan Kelapa Sawit PTPN IV Unit di Desa Langan Tengah Kecamatan Bebdahara Kabupaten Tanjung Jabung Timur Yusfaneti, Yusfaneti; Nasution, Hasriati; Saad, Asmadi; Mulyati, Sri
Jurnal Inovasi Global Vol. 3 No. 12 (2025): Jurnal Inovasi Global
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jig.v3i12.483

This study aims to analyze the effect of peat thickness, organic C content, and macronutrients (N, P, K) on land productivity in oil palm plantations. The study was conducted at the PTPN IV Oil Palm Plantation, Lagan Tengah Village Unit, Bendahara District, East Tanjung Jabung Regency, using survey and Proportional Random Sampling methods. The parameters observed included peat groundwater level, organic C content, N, P, K nutrient content, peat depth, and peat maturity in oil palm plants aged 6, 11, and 16 years. Data analysis was carried out using the Unpaired Mean Value Test and Simple Linear Regression Test. The results showed a significant relationship between peat depth and groundwater level at the age of 6 years (R = 72.3%) and 11 years (R = 81.0%). The relationship between organic C and total soil nitrogen in oil palm plants aged 6 years (R = 85%) and 11 years (R = 72%) was also significant. In addition, there was a positive relationship between organic carbon and available phosphorus (6-year-old, R = 0.79; 11-year-old, R = 0.65) and total soil potassium (6-year-old, R = 0.80; 11-year-old, R = 0.758). These results demonstrate the importance of peat depth and nutrient management in increasing oil palm productivity.

The Relationship Between Soil Layer Depth and Macro Nutrients N P K In Oil Palm Plantations In Sungai Tawar Village Tanjung Jabung Timur Regency Nasution, Hasriati; Suryanto, Suryanto; Saad, Asmadi
International Journal on Advanced Science, Education, and Religion Vol 8 No 3 (2025): IJoASER (International Journal on Advanced Science, Education)
Publisher : Sekolah Tinggi Agama Islam Al-Furqan, Makassar - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33648/ijoaser.v8i3.830

Peatland characteristics are an important consideration in land management for agricultural development. As peat depth increases, nutrient availability and microbial activity tend to decline, while soil acidity (pH) increases. Thicker peat layers therefore have a significant influence on soil fertility. Oil palm (Elaeis guineensis Jacq.), originating from Nigeria in West Africa, is widely cultivated in Malaysia, Indonesia, Thailand, and Papua New Guinea. Oil palm plays a strategic role in national plantation development by creating employment opportunities, improving community welfare, and contributing substantially to national foreign exchange earnings, with Indonesia being one of the world’s major palm oil producers. This study was conducted at an oil palm plantation in Sungai Tawar Village, Geragai Subdistrict, East Tanjung Jabung Regency. The research was carried out over four months during 2024–2025. Soil analyses were performed at the Soil Laboratory, Faculty of Agriculture, Universitas Jambi. The study used a survey method with purposive random sampling. Observed parameters included groundwater table depth, soil organic carbon (C-organic), peat depth, macronutrient content (N, P, and K), and peat maturity. Observations were conducted on oil palm stands aged 11 and 16 years, with ten soil sampling replications for each plant age. Data interpretation to identify differences in soil depth and NPK content between oil palm ages was conducted using an independent t-test for C-organic content, N, P, and K levels, groundwater table depth, peat thickness, and peat maturity. The relationship between C-organic content and NPK was analyzed using simple linear regression. Results showed strong correlations between peat layer depth, groundwater level, and nitrogen availability, as well as between soil C-organic content and total nitrogen, available phosphorus, and total potassium across different oil palm ages.

Characteristics and Influence of Squall Line on Moderate to Heavy Rain Phenomenon in Jambi Province Herdyansyah HB, M Randy; Syarifuddin , Hutwan; Saad, Asmadi
Jurnal KESANS : Kesehatan dan Sains Vol 5 No 3 (2025): KESANS: International Journal of Health and Science
Publisher : Rifa'Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54543/kesans.v5i3.529

Introduction: Jambi Province is a region prone to moderate to heavy rainfall events that are often triggered by mesoscale convective systems such as squall lines. This study aims to analyze atmospheric conditions, squall line characteristics, and their impact on surface rainfall. Three squall line events on May 7, 2024, June 21, 2024, and May 17, 2025, were selected as case studies. Methods: The research methods include analysis of 3000 ft wind data, 850–500 mb layer humidity, 925 mb air pressure, Himawari-08/09 satellite imagery, weather radar data, and AWS rainfall. Radar data were processed using Rainbow software, while satellite data were analyzed using Sataid. Results and Discussion: The results show that the three squall line events are supported by high air humidity (70–90%), wind deflection, and a low pressure center along Sumatra. Weather radar is able to clearly display the formation and decay of squall lines, with a linear convective structure that is not detected by satellite imagery. Measured rainfall varied from light to heavy rain in areas crossed by the squall line. Conclusion: Weather radar is the most effective instrument in identifying the squall line in Jambi, while satellite imagery only supports monitoring convective clouds. These results are important as a basis for improving the accuracy of early warnings for extreme weather.

Extreme Climate Index Projection using the Shared Socioeconomic Pathways Model (SSP 5-8.5) in Jambi Province 2026-2100 Riza, Moch Nurul; Saad, Asmadi; Zuhdi, Mohd
Jurnal KESANS : Kesehatan dan Sains Vol 5 No 4 (2026): KESANS: International Journal of Health and Science
Publisher : Rifa'Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54543/kesans.v5i4.542

Introduction: Global climate change has caused an increase in the frequency and intensity of extreme rain events, including in Jambi Province which is vulnerable due to geographical conditions, land use intensity and the dominance of the plantation sector. Extreme rain events have the potential to cause flooding, damage infrastructure and disrupt food security, resulting in future climate projections to support mitigation and adaptation efforts. . Objective: The aim of the research is to project changes in extreme climate indices and analyze their spatial distribution patterns and impacts. Methods: The data used includes observed rainfall from 41 BMKG rain posts, CHIRPS reanalysis data, and CMIP6 model data for historical and projection periods. Results and Discussion: The research results show that most extreme rainfall indices have increased until the end of the 21st century. Intensity indices such as PRCPTot, RX1day, RX5day, R95p, and R99p show a significant upward trend, indicating an increase in very heavy rain events. Conclusion: Spatially, the central region is the area most vulnerable to increased rainfall extremes.

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