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All Journal Jurnal Biologi Tropis Unri Conference Series: Community Engagement Jurnal Ilmu-Ilmu Kehutanan Jurnal Riset dan Pengabdian Interdisipliner
Nugraha, Lefdi Agung
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Education Environmental Science Immunology & microbiology Social Sciences Other

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Persepsi Stakeholder terhadap Fungsi Hutan dalam Upaya Mempertahankan Kawasan Hutan di Desa Kuala Tolam, Kabupaten Pelalawan Hutasuhut, Ika Lestari; Maryani, Maryani; Allasselcida, Anesha; Agustina, Dinda Tri; Sabri, Erwanda Tri Bintan; Ikhsani, Hanifah; Nugraha, Lefdi Agung; Mohta, Gandhiko; Putra, Agung Kartika
Jurnal Ilmu Ilmu Kehutanan Vol. 9 No. 2 (2025)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.9.2.%p

Abstract

Kuala Tolam Village, Pelalawan Regency, has forest areas and peatland ecosystems that play an important role ecologically, economically, and socially for the community. However, these areas have been experiencing continuous decline and pressure due to industrial activities and land-clearing practices. This condition requires a deeper understanding of stakeholder perceptions of forest functions, as an essential basis for building a commitment to preserve and maintain the remaining forest areas. The purpose of this study is to analyze stakeholder perceptions of forest functions in efforts to maintain forest areas in Kuala Tolam Village, focusing on three aspects: economic, social, and ecological. The research employed both quantitative and qualitative approaches, using interviews with stakeholders who were involved in discussion forums for the formation of commitments to protect forest areas in Kuala Tolam Village. The results show that stakeholder perceptions of forest functions in Kuala Tolam Village fall into the “agree” category across all measured aspects economic, ecological, and social. The positive perceptions of stakeholders regarding forest functions indicate a collective awareness of the importance of forests for life. This awareness serves as social capital for building a shared commitment to safeguarding forest functions and areas.
Pengaruh Pemberian Abu Boiler Kelapa Sawit Terhadap Pertumbuhan Semai Mahoni (Swietenia mahagoni) pada Media Gambut Pebriandi; Fadli, Zulkhoiri; Mardhiansyah, Muhammad; Darlis, Viny Volcherina; Somadona, Sonia; Sribudiani, Evi; Nugraha, Lefdi Agung; Irfani, Ewi; Suhada, Nur
Jurnal Ilmu Ilmu Kehutanan Vol. 9 No. 2 (2025)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.9.2.113-118

Abstract

Swietenia mahagoni can grow on marginal land and is suitable for use as a revegetation plant. Peat is classified as marginal soil due to its high organic acid content and low levels of macronutrients. One approach to improving the productivity of peat soil is the application of ameliorants, one of which is oil palm boiler ash. This study aimed to evaluate the effect of mixing peat with oil palm boiler ash and to determine the optimal composition of this mixture for the growth of mahogany seedlings. A completely randomized design (CRD) was employed, consisting of five treatments with four replications, resulting in a total of 20 experimental units. The planting media compositions tested were: P0 = 100% peat soil (control), P1 = 10% boiler ash + 90% peat soil, P2 = 15% boiler ash + 85% peat soil, P3 = 20% oil palm boiler ash + 80% peat soil, and P4 = 25% oil palm boiler ash + 75% peat soil. Data were analyzed using SPSS version 26.0. The application of oil palm boiler ash had a significant effect on the growth of mahogany seedlings. The optimal composition was 15% boiler ash and 85% peat, which resulted in an average seedling height increase of 10.01 cm and an average dry weight of 6.61 g.
Peningkatan Kompetensi Videografi Drone bagi Siswa Jurusan Kehutanan SMK Negeri 1 Tualang, Siak Ikhsani, Hanifah; Sabri, Erwanda Trio Bintan; Nugraha, Lefdi Agung; Agustina, Dinda Tri; Putra, Agung Kartika; Allasselcida, Anesha; Maryani, Maryani; Mohta, Gandhiko
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v2i4.37083

Abstract

This community service activity aimed to enhance the competencies of Forestry students at SMK Negeri 1 Tualang, Siak Regency, in drone-based videography using Unmanned Aerial Vehicle (UAV) technology. The training was conducted through an experiential learning approach that integrated theoretical instruction, technical demonstrations, and hands-on field practice. Training materials covered UAV fundamentals, flight safety, and aerial videography techniques relevant to forestry applications. The effectiveness of the program was evaluated using pre-test and post-test methods, supported by observations and interviews. The results indicated a substantial increase in the participants’ average scores, from 57.91% before the training to 96.51% after the training. The Wilcoxon Signed Rank Test revealed a statistically significant difference between pre-test and post-test results (p 0.05), confirming the positive impact of the training on students’ knowledge and technical skills. In addition, the program fostered improved confidence, discipline, and responsibility in drone operation. This activity contributes to strengthening vocational competencies and technological literacy in forestry education. 
Peningkatan Pengetahuan Masyarakat akan Fungsi Hutan untuk Mewujudkan Pengelolaan Hutan Lestari di Desa Kuala Tolam, Kabupaten Pelalawan, Provinsi Riau Lestari, Ika; Maryani, Maryani; Agustina, Dinda Tri; Ikhsani, Hanifah; Nugraha, Lefdi Agung; Mohta, Gandhiko; Allasselcida, Anesha; Putra, Agung Kartika; Sabri, Erwanda Trio Bintan; Qomar, Nurul; Pebriandi, Pebriandi; Irfani, Ewi
Unri Conference Series: Community Engagement Vol 7 (2025): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.7.236-245

Abstract

Kuala Tolam Village, Pelalawan Regency, Riau Province, is one of the regions that still possesses significant peatland forests, which are ecologically, socially, and economically important. However, pressures from plantation expansion, land conversion, and limited community knowledge about forest functions have made this area vulnerable to degradation. This community service activity aimed to enhance public knowledge of the importance of forests. The method employed was socialization through an educational, participatory, and interactive approach combined with small group discussions. The respondents in this activity were stakeholders involved in community deliberations with the Siak Pelalawan Landscape Program in the context of forming a collective commitment to maintain forest functions and areas. The results of this activity showed an increase in community knowledge about forest functions as measured by several aspects, namely forest definition, forest types, and forest functions. Community understanding of the definition of forests increased by 39%, knowledge of forest types around Kuala Tolam Village increased by 36%, and knowledge of forest functions increased by 30%. These findings indicate that the socialization and educational approaches applied were successful in raising public awareness of the importance of forests in supporting the community’s commitment to preserving forest functions and areas. Furthermore, the formation of such commitment, supported by enhanced knowledge and understanding, is expected to serve as a strong foundation for establishing a forest patrol and monitoring team in Kuala Tolam Village, Pelalawan Regency.
Analysis of the Physical and Chemical Properties of Soil in the Riau University Arboretum Pebriandi, Pebriandi; Marsanda, Gilang Panca; Desvita, Zeki; Sari, Efilda; Darlis, Vinny Volcherina; Oktorini, Yossi; Irfani, Ewi; Nugraha, Lefdi Agung; Pertiwi, Hutami Indah
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.10805

Abstract

Soil is an important component of forest ecosystems because it acts as a provider of nutrients, a support for vegetation, and a regulator of biogeochemical cycles. Variations in the physical and chemical properties of soil are greatly influenced by vegetation cover and soil depth. This study aims to analyse the chemical properties of soil in two types of vegetation cover, namely dense and moderate cover, in the Riau University Arboretum, which was determined using the Normalised Difference Vegetation Index (NDVI) method. Soil samples were taken at three depths (0–10 cm, 10–20 cm, and 20–30 cm) to determine the vertical variation in soil chemical properties. The parameters analysed included pH, organic carbon (organic C), total nitrogen (total N), phosphorus (P₂O₅), and potassium (K₂O). The results showed that soil pH was in the acidic category, ranging from 4.43 to 5.21. Organic carbon content was higher in the surface layer than in the lower layers, with the highest value of 5.14% in medium cover. Total N content was low in all samples (0.11–0.25%), indicating a limitation of nitrogen as a factor restricting vegetation growth. The nutrient elements P₂O₅ and K₂O tended to be higher in the surface layer, especially in dense cover (P₂O₅ = 26.66 mg/100 g; K₂O = 24.56 mg/100 g). In general, dense cover was able to maintain nutrient availability better than medium cover, although medium cover had relatively higher organic C content on the surface. These findings confirm that vegetation cover plays an important role in maintaining soil quality, and the preservation of dense vegetation needs to be optimised to support soil fertility and the sustainable conservation function of the arboretum.
Co-Authors Agustina, Dinda Tri Allasselcida, Anesha Darli, Viny Volcherina Darlis, Vinny Volcherina Desvita, Zeki Erwanda Trio Bintan Sabri Evi Sribudiani Ewi Irfani Fadli, Zulkhoiri Gandhiko Mohta Hanifah Ikhsani Ika Lestari Hutasuhut Ika Lestari, Ika Marsanda, Gilang Panca Maryani Maryani Muhammad Mardhiansyah Nur Suhada, Nur Nurul Qomar Pebriandi, Pebriandi Pertiwi, Hutami Indah Putra, Agung Kartika Sabri, Erwanda Tri Bintan Sari, Efilda Somadona, Sonia Yossi Oktorini