Article Per Year (5 Year)
p-Index From 2021 - 2026
1.768
P-Index
This Author published in this journals
All Journal Jurnal Silvikultur Tropika (JST) Jurnal Biologi Tropis Jurnal Laot Ilmu Kelautan Unri Conference Series: Community Engagement Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal Ilmu-Ilmu Kehutanan Jurnal Pengabdian Masyarakat Bhinneka Jurnal Pengabdian Masyarakat Jurnal Riset dan Pengabdian Interdisipliner
Nugraha, Lefdi Agung
Jurusan Kehutanan, Fakultas Pertanian, Universitas Riau, Pekanbaru, 28293
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Library & Information Science Nursing Public Health Social Sciences Other

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 12 Documents
Search

 1   2 
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
-
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. 
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.
Peningkatan Pengetahuan Masyarakat Desa Kuala Tolam tentang Mitigasi Bencana Ekosistem Gambut Partisipatif Mohta, Gandhiko; Maryani, Maryani; Sabri, Erwanda Trio Bintan; Allasselcida, Anesha; Agustina, Dinda Tri; Nugraha, Lefdi Agung; Putra, Agung Kartika; Ikhsani, Hanifah; Sribudiani, Evi; Qomar, Nurul; Mardhiansyah, Muhammad
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 6, No 2 (2026): Abdira
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v6i2.1823

Abstract

This community service activity aimed to improve the knowledge of residents of Kuala Tolam Village regarding drought control, flood management, peatland ecosystems, and riverbank landslide mitigation in areas vulnerable to hydrometeorological hazards. The education program was conducted through material delivery, discussions, and pre-test and post-test evaluations using a questionnaire. Data were analyzed using IBM SPSS Statistics 20 to describe respondent characteristics and to examine knowledge improvement using a paired sample t-test. The results showed that 66.67% of participants were initially in the low knowledge category; however, after the intervention, all participants improved to the moderate and high categories. The mean knowledge score increased from 47.33 to 69.73, with a statistically significant difference (p 0.05). This improvement was supported by the relevance of the materials, including peatland hydrology, drought control, flood mitigation, and riverbank bioengineering. Participatory education is therefore important for strengthening community capacity and village preparedness in managing environmental risks in peatland ecosystems.
Mangrove Canopy Cover Analysis Using Hemispherical Photography in Muara Jeruju Village, Kubu Raya Regency, Indonesia Iwan Kuncoro; Ahmad Albar; Lefdi Agung Nugraha
Jurnal Laot Ilmu Kelautan Vol 8, No 1 (2026): Jurnal Laot Ilmu Kelautan
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jlik.v8i1.15029

Abstract

Muara Jeruju Village is an estuarine ecosystem influenced by the Kapuas River and anthropogenic activities of coastal communities in Kubu Raya Regency, Indonesia. These conditions generate considerable variability in mangrove growth dynamics. This study aims to quantify mangrove canopy cover using the Hemispherical Photography (HP) method as an indicator of ecosystem health. Data were collected from three stations representing the riverfront, middle, and hinterland zones, with a total of 15 hemispherical photographs (5 images per station) used as sampling units. Hemispherical images were processed using ImageJ software to estimate canopy cover percentages, which were subsequently classified according to the standards of the Geospatial Information Agency (BIG, 2014). The results indicate that canopy cover was 58.4 ± 1.85% in the riverfront zone, 72.8 ± 1.48% in the middle zone, and 65.1 ± 1.67% in the hinterland zone, indicating moderate to dense canopy categories. No sparse canopy class was identified across all stations. Overall, the mangrove ecosystem in Muara Jeruju Village can be categorized as being in moderate to dense condition based on canopy cover values (58.4–72.8%) according to the classification standard of the Geospatial Information Agency (BIG, 2014). However, the riverfront area experiences relatively higher environmental pressure due to sedimentation processes and water transportation activities.
Sosialisasi Agroforestri di Lahan Gambut untuk Ketahanan Pangan dan Mitigasi Perubahan Iklim Berbasis Pemberdayaan Masyarakat Pebriandi Pebriandi; Lefdi Agung Nugraha; Ewi Irfani; Wahyu Tegar Pratama; Eka Hidyatulah; Viny Volcerina Darlis; Maryani Maryani; Muhammad Mardhiansyah; Evi Sribudiani; Yossi Oktorini
Jurnal Pengabdian Masyarakat Bhinneka Vol. 4 No. 4 (2026): Juli
Publisher : Bhinneka Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58266/jpmb.v4i4.1333

Abstract

Agroforestri merupakan salah satu pendekatan pengelolaan lahan yang mampu mendukung ketahanan pangan sekaligus berkontribusi dalam mitigasi perubahan iklim melalui integrasi tanaman kehutanan dan pertanian. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pemahaman peserta mengenai konsep dan implementasi agroforestri dalam pengelolaan lahan berkelanjutan. Kegiatan dilaksanakan pada tanggal 11 April 2026 di Aula Hotel Dika Raya, Kota Pangkalan Kerinci, Kabupaten Pelalawan dengan jumlah peserta sebanyak 18 orang yang berasal dari LSM Daemeter, LPHD, SPLP, serta mahasiswa Jurusan Kehutanan Universitas Riau. Metode pelaksanaan menggunakan pendekatan partisipatif yang meliputi penyampaian materi, diskusi, sharing session, dan tanya jawab. Hasil kegiatan menunjukkan adanya peningkatan pemahaman peserta terhadap konsep agroforestri, manfaatnya dalam meningkatkan produktivitas lahan, serta perannya dalam penyerapan karbon dan konservasi lingkungan. Selain itu, interaksi aktif antar peserta melalui diskusi dan berbagi pengalaman turut memperkuat pemahaman kontekstual dan mendorong potensi adopsi praktik agroforestri di tingkat masyarakat. Dengan demikian, kegiatan ini memberikan kontribusi positif dalam meningkatkan kapasitas masyarakat serta mendukung pengelolaan sumber daya lahan yang berkelanjutan.
Pengenalan Penggunaan Chainsaw sebagai Alat Semi Mekanis Pada Kegiatan Pemanenan Kayu Bagi Siswa SMK Kehutanan Negeri Pekanbaru Ika Lestari; Anesha Allasselcida; Dinda Tri Agustina; Lefdi Agung Nugraha; Hanifah Ikhsani; Agung Kartika Putra; Maryani Maryani; Viny Volcherina Darlis; Pebriandi Pebriandi; Ewi Irfani
Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2026): Juni 2026
Publisher : Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/japamas.v5i1.428

Abstract

Pemanenan kayu merupakan proses penting dalam pengelolaan hutan yang melibatkan penebangan pohon dengan berbagai alat, termasuk chainsaw sebagai alat semi mekanis. Chainsaw memerlukan keterampilan khusus agar penggunaanya efektif dan aman. Kegiatan ini bertujuan mengenalkan penggunaan chainsaw kepada siswa SMK Kehutanan Negeri Pekanbaru dan meningkatkan pengetahuan dan wawasan siswa terkait chainsaw baik penggunaanya, komponen-komponen alat dan aspek K3. Metode yang digunakan adalah sosialisasi dan partisipatif dengan pendekatan kualitatif melalui pemberian materi, diskusi, pengenalan komponen chainsaw dan video simulasi penggunaan alat, serta pendekatan kuantitatif dengan pre-test dan post-test untuk mengukur peningkatan pengetahuan siswa. Responden dipilih secara purposive sampling dari siswa SMK Kehutanan Negeri Pekanbaru sebanyak 30 siswa yang memili minat  pada mata pelajaran pemanenan hasil hutan. Hasil menunjukkan peningkatan pemahaman siswa setelah pelatihan, dengan rata-rata skor pre-test 66 meningkat menjadi 91 pada post-test, yaitu peningkatan rata-rata 24 poin. Siswa menunjukkan antusiasme tinggi pada sesi teori, pengenalan komponen, dan simulasi video. Kegiatan ini juga menekankan pentingnya penggunaan alat pelindung diri (APD) untuk keselamatan kerja. Kesimpulan dari kegiatan ini adalah pengenalan penggunaan chainsaw efektif meningkatkan wawasan dan pengetahuan siswa. Pendekatan pembelajaran yang menggabungkan teori dan simulasi praktik mendukung pemahaman yang lebih baik dan memperkuat kesiapan siswa dalam menghadapi dunia kerja dibidang kehutanan.
Nilai Ekonomi Pemanfaatan Hasil Hutan Bukan Kayu Di Taman Nasional Tesso Nilo Oleh Masyarakat Desa Lubuk Kembang Bunga Kabupaten Pelalawan, Provinsi Riau Pebriandi; Lefdi Agung Nugraha; Defri Yoza; Yossi Oktorini; Muhammad Mardhiansyah; Ewi Irfani; Sonia Somadona; Evi Sribudiani; Feny Oktaningsih; Ika Lestari Hutasuhut
Jurnal Ilmu Ilmu Kehutanan Vol. 10 No. 1 (2026)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.10.1.%p

Abstract

Tesso Nilo National Park (TNNP) is one of the national parks in the province of Riau. TNNP is also one of the national parks that has great potential such as protected animals both Sumatran Elephants, Sumatran Tigers, HHK, and NTFPs. The existence of the forest is very important for the survival of the people living around the forest as well as the animals living in it. The diversity of types of forest products, especially NTFPs in the TNNP, are used by the people around the National Park, especially the people of Lubuk Kembang Bunga Village The use of NTFPs from national parks for both domestic needs and economic needs has different types and types, NTFPs used by the community, such as rattan, resin, honey, pandan and medicine from forest areas.
Keanekaragaman Burung pada Berbagai Tipe Vegetasi di Resort Aikmel, Taman Nasional Gunung Rinjani, Nusa Tenggara Barat Anesha Allasselcida; Dinda Tri Agustina; Niskan Walid Masruri; Viny Volcherina Darlis; Lefdi Agung Nugraha; Hanifah Ikhsani
Jurnal Ilmu Ilmu Kehutanan Vol. 10 No. 1 (2026)
Publisher : Jurusan Kehutanan Fakultas Pertanian Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.10.1.%p

Abstract

Birds are important components of ecosystems whose diversity is strongly influenced by habitat conditions, vegetation structure, and food availability. This study aimed to analyze bird diversity across different vegetation types in Aikmel Resort, Mount Rinjani National Park, including primary dryland forest, secondary dryland forest, savanna, and post-encroachment areas (PKTI). Bird observations were conducted using the point count method with a 50 m observation radius at 20 sampling points. Analyses included species encounters, diversity index, species richness, dominance, and species similarity among vegetation types. A total of 503 individuals representing 22 species and 16 families were recorded during the study. The PKTI area showed the highest number of individuals (250 individuals; 13 species), whereas the savanna had the lowest (42 individuals; 8 species). Primary dryland forest exhibited the highest diversity index (  = 2,14), likely due to its dense canopy cover and more complex vegetation structure. Secondary dryland forest had the highest species richness index (  = 2,43), while the savanna was dominated by Collocalia linchi. The highest species similarity index was observed between primary and secondary dryland forests (0,35). Differences in vegetation structure and habitat complexity influenced bird composition and diversity across vegetation types. These findings highlight the importance of habitat heterogeneity in supporting bird conservation within Mount Rinjani National Park.
Co-Authors Ahmad Albar Anesha Allasselcida Defri Yoza Desvita, Zeki Dinda Tri Agustina Eka Hidyatulah Erwanda Trio Bintan Sabri Evi Sribudiani Ewi Irfani Fadli, Zulkhoiri Feny Oktaningsih Gandhiko Mohta Hanifah Ikhsani Ika Lestari Ika Lestari Hutasuhut Ika Lestari Hutasuhut Jesi Meirani KUNCORO, IWAN - Marsanda, Gilang Panca Maryani Maryani Maryani Maryani Maryani Maryani Muhammad Mardhiansyah Niskan Walid Masruri Nur Suhada, Nur Nurul Qomar Pebriandi, Pebriandi Pertiwi, Hutami Indah Putra, Agung Kartika Sabri, Erwanda Tri Bintan Sari, Efilda Somadona, Sonia Viny Volcerina Darlis Viny Volcherina Darlis Wahyu Tegar Pratama Yossi Oktorini