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All Journal Jurnal Ilmu Pertanian Indonesia Indonesian Journal of Geography Jurnal Ilmu Lingkungan JURNAL SAINS PERTANIAN EQUATOR Perkebunan dan Lahan Tropika Kinerja JTSL (Jurnal Tanah dan Sumberdaya Lahan) SEMIRATA 2015 JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Biodjati Window of Health : Jurnal Kesehatan Jurnal Pertanian Agros Jurnal Meteorologi Klimatologi dan Geofisika Buletin Ilmiah Marina : Sosial Ekonomi Kelautan dan Perikanan Abditani : Jurnal Pengabdian Masyarakat Agrotechnology Research Journal GEOGRAPHY : Jurnal Kajian, Penelitian dan Pengembangan Pendidikan Jurnal Ilmu Pertanian Tirtayasa Journal of Environmental Science and Sustainable Development Jurnal Borneo Akcaya : Jurnal Penelitian dan Pengembangan Pelayanan Publik Society : Jurnal Pengabdian dan Pemberdayaan Masyarakat Buletin Jalanidhitah Sarva Jivitam Jurnal Locus Penelitian dan Pengabdian Jurnal Teknologi Lingkungan Lahan Basah Jurnal Ilmiah Multidisiplin Indonesia Sulolipu: Media Komunikasi Sivitas Akademika dan Masyarakat
Evi Gusmayanti
Program Studi Magister Ilmu Lingkungan, Program Pascasarjana, Universitas Tanjungpura
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary Other

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Analisis Kandungan Tembaga (Cu) Dari Limbah Cair Pencucian Bauksit Di Kecamatan Tayan Hilir Dan Meliau, Kabupaten Sanggau, Kalimantan Barat Octadinata, Rizky; Gusmayanti, Evi; Ali Akbar , Aji
Jurnal Locus Penelitian dan Pengabdian Vol. 4 No. 9 (2025): : JURNAL LOCUS: Penelitian dan Pengabdian
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/locus.v4i9.4825

Abstract

One of the impacts of the bauxite washing process is liquid waste. Waste that is not managed properly and is thrown into surface water (rivers) will cause various impacts that will cause environmental damage and harm the people living around the mining location. The aim of this research is to determine the Copper (Cu) content found around the river which is the recipient of waste from bauxite washing waste by taking samples at 30 sample points. Cu analysis using Atomic Absorption Spectrophotometer (AAS). The results of the laboratory test analysis were compared with the Government Regulation of the Republic of Indonesia Number 22 of 2021 concerning the Implementation of Environmental Protection and Management and statistical analysis tests were carried out using the Kruskal Wallis test. The research results show that the Copper (Cu) content ranges from 0.03 – 0.05 mg/L, this value is above the environmental quality standard value. The statistical test results also show that there is no difference in the average Copper (Cu) content between the three research locations both in the morning and evening.
Soil Quality Index of Tropical Peatlands Affected by Canal Blockages Nusantara, Rossie Wiedya; Gusmayanti, Evi Gusmayanti; Sudrajat, Jajat Sudrajat
Indonesian Journal of Geography Vol 57, No 2 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.99247

Abstract

This study aimed to determine the Soil Quality Index (SQI) of peatlands where canal blocking was implemented. The research was conducted in two villages in Kubu Raya District, West Kalimantan Province e.g. Madu Sari and Teluk Empening. The sites in Madu Sari were impacted by permanent canal blocking with horticultural crops (M1) and corn (M2), while the sites in Teluk Empening had simple canal blocking with rubber (E1) and horticultural crops (E2). A total of 24 peat soil samples were collected from a depth of 0-20 cm. These samples were analyzed for nineteen physical, chemical, and biological indicators, including peat depth, water-table depth, bulk density, water content, total porosity, permeability, pH, organic carbon, total nitrogen, CN ratio, available phosphorus, exchangeable sodium, exchangeable potassium, exchangeable calcium, exchangeable magnesium, cation exchange capacity, base saturation, ash content, and earthworm. Statistical tests used ANOVA and brown-forsythe to determine the effect of location, as well as tukey test and howell games for further tests. The reduction from 19 to 13 indicators was based on the correlation of the constituent indicators with a value of r>0.5. There are 3 steps  to determine SQI, namely to identification of the minimum data set (MDS), (2) the scoring of the MDS indicators, and (3) the calculation of the SQI value. The SQI values for the sites were 0.64 (good) for M1, 0.56 (moderate) for M2, 0.50 (moderate) for E1, and 0.52 (moderate) for E2, reflecting varying levels of soil quality across the locations. The addition of organic matter from manure has a positive impact on soil quality compared to the application of inorganic fertilisers and intensive tillage.Received: 2024-08-19 Revised: 2024-11-15 Accepted: 2025-08-15 Published: 2025-08-19 
PERBANDINGAN KONSENTRASI SENYAWA TANIN PADA LAHAN BUDIDAYA PERTANIAN DAN SEMAK BELUKAR DI LAHAN GAMBUT Usela, Viesta Cahya; Gusmayanti, Evi; Anshari, Gusti Zakaria
Jurnal Sains Pertanian Equator Vol 15, No 1
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v15i1.99587

Abstract

Provinsi Kalimantan Barat memiliki lahan gambut seluas 1,55 juta ha. Lahan gambut merupakan lahan marjinal yang digunakan untuk budidaya pertanian. Tingkat kesuburan lahan gambut rendah dengan kandungan senyawa organik seperti lignin, selulosa, hemiselulosa, dan tanin. Penelitian ini bertujuan untuk membandingkan konsentrasi senyawa tanin pada lahan gambut yang digunakan untuk budidaya pertanian hortikultura dan semak belukar. Penelitian dilaksanakan dari bulan Mei sampai Juli 2024. Sampel diambil dari 3 plot masing-masing lahan dengan jumlah 4 titik pengambilan. Pengukuran kandungan total tanin dilakukan menggunakan metode Folin-Denis dengan Spektrofotometer Uv-Vis pada panjang gelombang 740 nm. Hasil uji T taraf 5% menunjukkan bahwa konsentrasi senyawa tanin pada lahan budidaya dan lahan semak belukar berbeda tidak nyata. Hal ini diperkirakan karena kedua lahan sama-sama terindikasi telah terdekomposisi. Kesimpulan sementara penelitian bahwa konsentrasi senyawa tanin pada lahan budidaya sayuran dan semak belukar tidak berbeda signifikan.
KANDUNGAN FENOL, TANIN, DAN TOTAL KOLONI BAKTERI PENDEGRADASI FENOL PADA LAHAN GAMBUT YANG DIRESTORASI HIDROLOGI Andeni, Octavia Yesie; Gusmayanti, Evi; Anshari, Gusti Zakaria
Agros Journal of Agriculture Science Vol 26, No 1 (2024): Januari
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i1.4050

Abstract

Phenolic compounds are one of the organic materials that can inhibit the decomposition process of peat, are toxic to plants, and difficult to degrade. Degradation of phenolic content can be done enzymatically by phenol-degrading bacteria. The purpose of this study was to compare the content of phenol, tannin, and total colonies of phenol-degrading bacteria on mixed agricultural land at upstream and downstream of the canal blocking built through the hydrological restoration program. The research was conducted from September 2022 to January 2023. Soil samples were taken from two transects (upstream and downstream of canal blocking) using a peat drill.  The samples were analyzed to measure phenol, tannin, and bacterial content.  The results showed insignificant differences in the content of phenol and tannin in peat samples collected from the two transects. The pH, water content, and C-organic content were found in a similar pattern. Total colonies of phenol-degrading bacteria tended to be higher in the transect located upstream compared to the downstream of canal blocking. Keywords: phenol, phenol-degrading bacteria, tannin.INTISARISenyawa fenolik merupakan salah satu bahan organik yang dapat menghambat proses dekomposisi gambut, bersifat racun bagi tanaman, dan sulit terdegradasi. Degradasi kandungan fenolik dapat dilakukan secara enzimatik oleh bakteri pendegradasi fenol. Tujuan penelitian ini adalah membandingkan kandungan fenol, tanin, dan total koloni bakteri pendegradasi fenol pada lahan pertanian campuran hulu dan hilir sekat kanal yang dibangun melalui program restorasi hidrologi. Penelitian dilaksanakan pada bulan September 2022 hingga Januari 2023. Sampel tanah diambil pada dua transek (hulu dan hilir sekat kanal) dengan menggunakan alat bor gambut. Sampel dianalisis untuk mengukur kandungan fenol, tanin, dan bakteri. Hasil penelitian menunjukkan adanya perbedaan yang tidak signifikan kandungan fenol dan tanin pada sampel gambut yang dikumpulkan dari kedua transek. PH, kadar air, dan kandungan C-organik ditemukan dalam pola yang sama. Total koloni bakteri pendegradasi fenol cenderung lebih tinggi pada transek yang terletak di bagian hulu dibandingkan di bagian hilir sekat saluran. Kata kunci: fenol, bakteri pendegradasi fenol, tanin
PENGUJIAN TIGA METODE PENGUKURAN BOBOT ISI PADA TANAH GAMBUT Sinaga, Christina; Nusantara, Rossie Wiedya; Gusmayanti, Evi; Anshari, Gusti Zakaria
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 2 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.2.9

Abstract

This research aims to compare the methods of bulk density measurements in peat soils. The methods are ring sample, peat auger, and syringe. The research was conducted in peat soils in Pontianak City. The research was carried out from June to December 2023. Peat samples were the surface peat (0-10 cm). The samples were collected from five plots, and five replications. On average, the value of bulk density measured by the ring sample was 0.27 g cm-3, which is significantly different from bulk density values measured by the peat auger and syringe: 0.11 g cm-3 and 0.09 g cm-3, respectively. Bulk densities of peat auger and syringe are statistically indifferent. Soil compaction during sampling causes the ring sample's high bulk density value. Accordingly, carbon stock calculation based on ring sample bulk density is significantly higher than carbon stocks calculated by bulk densities of auger and syringe. The bulk density measurement with a peat auger took longer because a water displacement approach must measure the sample volume. Collecting bulk-density samples with a syringe is the easiest and fastest. The volume of the syringe sample is only 10 cm3, and the sample can be taken until the mineral substratum. The number of sample collected by syringe can be significantly increased at 5 cm sampling interval, or equals to 10 sub-samples per 50 cm peat core. Pearson linear correlations of these three methods are sufficiently strong.
RESPON PERTUMBUHAN DAN HASIL BAWANG DAUN TERHADAP PEMBERIAN KOMPOS ECENG GONDOK DAN UREA PADA TANAH ALUVIAL Rohim, Mulyadi; Surachman, Surachman; Gusmayanti, Evi
Jurnal Sains Pertanian Equator Vol 13, No 1
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v13i1.70024

Abstract

Salah satu upaya yang dapat dilakukan dalam memperbaiki tanah aluvial untuk budidaya tanaman adalah pemberian kompos eceng gondok sebagai amelioran dan pemberian urea sebagai perbaikan hara tanah. Penelitian ini bertujuan untuk menganalisis interaksi dan mendapatkan dosis interaksi kompos eceng gondok dan urea yang terbaik untuk pertumbuhan dan hasil tanaman bawang daun pada tanah aluvial. Penelitian ini dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Tanjungpura dimulai dari Maret - Mei 2023. Penelitian menggunakan rancangan Faktorial dengan pola Rancangan Acak Lengkap yang terdiri dari dua faktor, yaitu dosis kompos eceng gongok (k) dan dosis pupuk urea (n). masing-masing factor terdiri dari tiga taraf dan pada setiap kombinasi perlakuan terdapat empat tanaman sampel, sehingga terdapat 108 tanaman. Perlakuan kompos eceng gondok yaitu k₁ = 40 ton/ha, kâ‚‚ = 50 ton/ha, dan k₃ = 60 ton/ha, sedangkan dosis urea terdiri dari n₁ = 150kg/ha, nâ‚‚ = 200kg/ha, dan n₃ = 250kg/ha. Hasil penelitian menunjukkan bahwa terjadi interaksi pemberian kompos eceng gondok dan urea terhadap pertumbuhan bawang daun pada tanah aluvial. Hasil penelitian menunjukan tidak ditemukan dosis interaksi antara kompos eceng gondok dan urea terhadap pertumbuhan dan hasil bawang daun pada tanah aluvial, namun interaksi kompos eceng gondok dosis 50 ton/ha setara dengan 150 g/polybag dan urea 150 kg/ha setara dengan 0,75 g/tanaman sudah efektif untuk pertumbuhan dan hasil bawang daun pada tanah aluvial.  
The Effect of The Internal Control System, Leadership Style, Organizational Culture, Organizational Commitment, and Good Government Governance on The Performance of The Local Government (Survey on All SKPD in Magelang Regency) Jatmiko, Bambang; Gusmayanti, Deviana
KINERJA Vol. 26 No. 2 (2022): KINERJA
Publisher : Faculty of Business and Economics Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/kinerja.v26i2.6115

Abstract

This research aims to test and prove the effectiveness of the principle of the internal control system, leadership style, organizational culture, organizational commitment, and good government governance on the performance of the local government of Magelang Regency. As for the problem in this research, the work program in the regional work unit in Magelang Regency is very low and not efficient. This study used a survey to collect the data. The object of this research is the Regional Work Unit (SKPD) of Magelang Regency. The sample of this study is all SKPD in Magelang Regency, with a total of 20 SKPD. The analytical tool used in this research is regression analysis. This study found that the internal control system, leadership style, organizational culture, organizational commitment, and good government governance positively affect the performance of local governments.
Farming Sustainability in Peatlands Following Restoration Programme in West Kalimantan Sudrajat, Jajat; Gusmayanti, Evi; Nusantara, Rossie Wiedya; Sawerah, Siti
Jurnal Ilmu Pertanian Indonesia Vol. 31 No. 1 (2026): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.31.1.83

Abstract

The Indonesian government's peat restoration program, which began in 2016, is alleged to have an impact on the sustainability of peatland farming, because rewetting has the potential to cause waterlogging, limiting the crop commodities that can be cultivated. This project will look at the viability of small-scale farming on restored peatlands. To fulfill the study's objectives, we used a combination of quantitative and qualitative methods. The quantitative technique included an analysis of agricultural income to determine the economic sustainability, whereas the qualitative approach explains social sustainability. The environmental sustainability was assessed using the carbon rescue acquired after rewetting. The findings revealed that rewetting had little effect on the income from vegetable and fruit crops. The farming income, which remains relatively high, demonstrates that farming's economic sustainability is viable. Similarly, the social dimension does not detract from the sustainability aspect, because the rewetting of the land did not significantly alter the social structures and institutions that had been built in the farmer's community. Meanwhile, from an environmental standpoint, the impact of rewetting is quite favorable, as every 1 cm increase in water table level has the potential to conserve at least 0.71 tons of CO2 per acre per year, or around IDR 13,888−26,993. Keywords: carbon rescue, farming, peatland restoration, rewetting
GREEN INNOVATION: OPTIMIZING THE POTENTIAL OF PLASTIC WASTE AS AN ALTERNATIVE TO FOSSIL FUELS Alfiyani, Hani; Gusmayanti, Evi; Wahyuni, Nelly
Journal of Environmental Science and Sustainable Development Vol. 8, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Plastic bag waste has the potential to be converted into alternative fuel oil through the pyrolysis method. This study applies the principle of thermal pyrolysis, conducted without oxygen, at the Edelweis Integrated Waste Management Site. The purpose is to analyze the characteristics of fuel oil derived from plastic bag waste based on parameters such as density, viscosity, calorific value, and acid number, as well as to estimate the potential fuel oil yield from plastic bag waste in Pontianak City. The results show that the density, viscosity, and calorific value of the produced fuel oil meet or closely approach standard requirements. However, the acid number measurements exceed the acceptable limits, 0.75 mg KOH/g for gasoline, 0.94 mg KOH/g for kerosene), and 0.50 mg KOH/g for diesel. This is likely due to high levels of chlorine (Cl) and silicon (Si) detected through X-Ray Fluorescence (XRF), which may originate from the plastic materials and red soil used as an adsorbent. Gas Chromatography-Mass Spectrometry (GC-MS) analysis confirms that the fuel oil contains hydrocarbon compounds similar to those found in commercial fuels, though in different proportions. Before the implementation of Circular Letter (CL) Number 43 of 2024, which prohibits businesses from providing plastic bags, the potential fuel oil production is estimated at 1,048,923.59 liters in 2024 and 1,259,375.52 liters in 2045. If this policy is fully implemented, fuel oil production is expected to decrease by approximately 16.52 percent in 2025 and 22.68 percent in 2045, due to the reduced use of plastic bags. This approach could be an effective way to reduce dependence on fossil fuels an estimated by 1 to 1.5 percent in 2025 and 0.8 to 1.7 percent in 2045. Although the results are promising, further testing is necessary to ensure full compliance with fuel standards.
Profile of Phenolic Compounds and Phenol-Degrading Bacterial Colonies in Secondary Peat Forest Soil Fiko Jervannes; Gusti Z. Anshari; Evi Gusmayanti; Yulita Andriyani
Jurnal Biodjati Vol 10 No 2 (2025): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v10i2.47139

Abstract

Peat contains high levels of phenols and lignin, which are resistant to decomposition. Drainage canals lower the groundwater table, promoting microbial degradation. This study investigated microbial decomposition in a secondary peat swamp forest by quantifying phenol-degrading bacterial colonies and measuring phenol concentrations in peat soil from Malikian Village, Mempawah Regency, West Kalimantan. Samples were collected from three plots at two depths, the aerobic layer and the anaerobic layer, with fifteen (15) samples from each depth. Bacterial colonies were counted via mineral salt medium (MSM) with up to five dilutions, whereas phenolic compounds were measured via the Folin–Ciocalteu method. Paired t-tests revealed highly significant differences in both phenol concentration (p-value < 0.001) and the number of phenol-degrading bacterial colonies (p-value < 0.003) between the aerobic layer and the anaerobic layers. These findings indicate that peat decomposition is more pronounced in the aerobic surface layer than in the permanently waterlogged layer. This observation is attributed to the greater number of phenol-degrading bacterial colonies and lower phenol concentration in the surface layer than in the deeper layer. Consequently, the aerobic conditions in the surface layer of the secondary peat swamp forest facilitate accelerated peat decomposition
Co-Authors - - Agustina - - Hidayat - Warganda Abdul Jabbar Adhitiyawarman, Adhitiyawarman Agustina Listiawati Ahmad Subuh Aji Ali Akbar Akbar, Aji Ali Alfiyani, Hani Ali Akbar , Aji aliamin aliamin Aliamin Aliamin Andeni, Octavia Yesie Anggraeny, Feneranda Anshari, Gusti Z. Anshari, Gusti Zakaria Aripin, Samsun Asmadi asmadi Bambang Jatmiko Basuni Bewa Mulyatama Chairani Siregar Dadan Kusnandar Darussalam Darussalam, Darussalam Debi Sumarlin Dika Riyani Dwi Zulfita Dwi Zulfita ersandi sandi Evinsyah Putra Nasution Fanni Aditya Farah Diba Fathmawati Fathmawati Fiko Jervannes Gultom, Ester Romatua Gusti Z. Anshari Gusti Zakaria Anshari Gusti Zakaria Anshari Gusti Zakaria Anshari Gusti Zulkifli Mulki Hardiyanti Ningsih Hasibuan Havid Aqoma Henny Sulistyowati Henny Sulistyowati Henny Sulistyowati Indah Budiastutik Iva Tifani Iwan Sasli J.K. Simamora, Cico Jajat Sudrajat Jamaludin . Jamaludin Jamaludin Josua Parulian Hutajulu Kristin, Valenti Lutfiando, Muhammad Fadli Malik Saepudin Muhammad Elifant Yuggotomo Muhammad Iqbal Muhammad Pramulya Muhammad Pramulya Muhti Dewi Prihutami Murni, Sri Dewi Nelly Wahyuni NORMALA NORMALA Octadinata, Rizky PATRIANI PATRIANI PATRIANI PATRIANI Rakhmad Perkasa Harahap Ratna Yulita Resky Nanda Pranaka Rio, Kornelius Rohim, Mulyadi Rossie Wiedya Nusantara Rossie Wiedya Nusantara Rossie Wiedya Nusantara Saifuddin saifuddin Shandra Andina Rahsia Sholahuddin Simamora, Cico Jhon Karunia Sinaga, Christina Sisdamantri, Atmi Ayu Siswahyudianto Siti Sawerah Sudrajat, Jajat Sudrajat Surachman Surachman Sutikno Sutikno Tangti Yosepa Togatorop, Marthin Jonathan Triatmojo, Leo Pamungkas ULYA SRI RAHAYU Usela, Viesta Cahya USWATUN HASANAH Wandanil, Wandanil Widadi Padmarsari Soetignya Yulita Andriyani Z. Anshari, Gusti Zapariza, Rudi