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All Journal Jurnal Silvikultur Tropika (JST) Jurnal Natur Indonesia Jurnal Online Mahasiswa (JOM) Bidang Pertanian Jurnal Biologi Universitas Andalas Jurnal Riau Biologia Jurnal Biologi Tropis Wahana Forestra: Jurnal Kehutanan JMM (Jurnal Masyarakat Mandiri) Ensiklopedia of Journal Jurnal Pembelajaran dan Biologi Nukleus Jurnal Hutan Tropika Unri Conference Series: Community Engagement ECOTONE Jurnal Zona Dinamika Lingkungan Indonesia Sagu CANANG: Jurnal Pengabdian Masyarakat Jurnal Ilmu-Ilmu Kehutanan Jurnal Pengabdian Masyarakat Bangsa Jurnal Senpling Multidisiplin Indonesia Jurnal Natur Indonesia

Defri Yoza

Departement Of Forestry, Faculty Of Agriculture, Riau University

Author-ID : 5352921

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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POTENSI DAN PRODUKSI PAKAN RUSA TIMOR (Cervus timorensis) DI KAMPUS UNIVERSITAS RIAU Ano Riyadi; Defri Yoza; Sonia Somadona
JURNAL ILMU-ILMU KEHUTANAN Vol 5, No 2 (2021)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.5.2.8-15

Timor deer (Cervus timorensis) is the second largest tropical deer after sambar. Compared to other Indonesian tropical deer, the timor deer (Cervus timorensis) is unique in that it is a deer that has many sub species, with a wide spread area. Timor deer (Cervus timorensis) are widely bred in various locations because they have high economic value, in which all parts can be utilized. The potential of timor deer can be developed as part of environmental services that have high value as recreational objects. The purpose of this study was to determine the potential of timor deer feed (Cervus timorensis) at the University of Riau and determine the production of timor deer feed (Cervus timorensis) at the University of Riau. The study was conducted at a prospective location for timor deer breeding (Cervus timorensis), Riau University campus covering an area of approximately 2.07 ha. Sampling was carried out using a plot of 41 plots, with a size of 1 m x 10 m. Riau University has potential as a location for timor deer breeding (Cervus timorensis). Production of all types of deer feed in captive breeding sites amounted to 2,878.67 gr/m.

POTENSI TUMBUHAN DAN SEBARAN TANAMAN BIOPESTISIDA DI KAMPUS UNIVERSITAS RIAU Agus Sutikno; Defri Yoza; Viny Volcherina Darlis
JURNAL ILMU-ILMU KEHUTANAN Vol 4, No 1 (2020)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.4.1.32-45

This study aims to determine the potential of plants as biopesticides found around Riau University campus. The method used consists of vegetation analysis and renaissance methods. The vegetation analysis method was used in the arboretum area of the Riau University while the renaissance survey was carried out on agricultural gardens, shrubs, and road shade plants. From the survey results, there were 25 types of botanical pesticides with the highest growth rate at the seedling and understorey plants.

ANALISIS PEMASARAN KEMENYAN (Styrax spp.) DI DESA SIMARIGUNG (STUDY KASUS DI DESA SIMARIGUNG, KEC. DOLOK SANGGUL, KAB. HUMBANG HASUNDUTAN Sori B M Lumban Gaol; Defri Yoza; Tuti Arlita
JURNAL ILMU-ILMU KEHUTANAN Vol 1, No 2 (2017)
Publisher : Fakultas Pertanian, Universitas Riau

The purpose of this research is to know margin, efficiency and profit so that it is known that marketing channel is the most profitable for the farmer and we can identify the problems faced by farmers and traders. The data colleted from farmers and traders of Simarigung Village, Village Office and BPS Humbang Hasundutan. The method used is a simple random sampling. From the research obtained that farmers and traders Simarigung Village has a cooperative relationship based on the principle of kinship, Patrilineal system on the tribe of Batak cause farmers and traders to deal with the closeness of kinship. The marketing channel of Simarigung Village is divided into 2 channels and a more profitable marketing channel for farmers is the second marketing channel. Marketing channel marketing margin I is Rp. 50.000,00 and marketing channel II Rp. 30.000,00 then efficiency of marketing channel I is 7,66% and marketing channel II is 7,33% then marketing profit of marketing channel I is Rp. 27.000,00 and marketing channel II is Rp. 8.000,00.

KEANEKARAGAMAN JENIS POHON DI HUTAN LARANGAN ADAT IMBO PUTUI DESA PETAPAHAN KABUPATEN KAMPAR PROVINSI RIAU Widia Safitri; Defri Yoza; Yossi Oktorini
JURNAL ILMU-ILMU KEHUTANAN Vol 3, No 2 (2019)
Publisher : Fakultas Pertanian, Universitas Riau

Imbo Putui Prohibition Forest was located in Petapahan Village, Tapung District, Kampar Regency, Riau Province. The area of Imbo Putui Prohibition Forest is 250 ha. Imbo Putui Prohibition Forest was known to store a great variety of species, both flora and fauna. There are 59 different types of trees from 24 different families and there are 6 types of trees that have an important value index (INP) of more than 15%, the type was medang, mempening, kelat, meranti, lalan and kempas. It was necessary to do research with the title of Tree Species Diversity in Imbo Putui Prohibition Forest in Petapahan Village, Kampar Regency, Riau Province, which aims to determine the diversity of tree species found in the Imbo Putui Indigenous Forest. So that the value of plant species diversity in the Imbo Putui Prohibition Forest was obtained was high, which was 3.28. The value of Imbo Putui Indigenous Forest Prohibition species was high, which was 8.68. The evenness index value in the Imbo Putui Prohibition Forest was high at 0.80.

PERCEPTION OF THE SOCIETY ABOUT OPENING LAND WITHOUT BURNING AND THE INCENTIVE TO PREVENTION AND CONTROL FOREST FIRES IN RIMBO PANJANG VILLAGE KAMPAR REGENCY Dewi Sriyanti; Defri Yoza; Tuti Arlita
JURNAL ILMU-ILMU KEHUTANAN Vol 1, No 1 (2017)
Publisher : Fakultas Pertanian, Universitas Riau

Forest fires is one of the main causes of deforestation that could interfere with the preservation of forests. In 2015, there was a major fire that occurred again in Riau Province, one of them is in the village of Rimbo Panjang Kampar regency. Opening land by burning has become society’s habbit. This happens because there was no other alternative of society foropening land so they keep using fire in any opening land. This study aims to identify the information about forest and land fires that occurred in the village of Rimbo Panjang Kampar Regency, society’s perception in opening land without burning in Rimbo Panjang village of Kampar Regency and identify opportunities for incentives to the societyforopening land without burning. The results show that the number of fires from 2011 to 2015 in the village of Rimbo Panjang were 42 hotspots. Land and forest fires occur mostly during the dry season. The condition of land consist of shrubs and peat cause flammable. Society’s perception aboutopening land without burning describes that the public agrees with the activities of opening land systems without burning (PLTB) because it was considered more advantageous for the environment. The society do not know about the opportunities the incentive because the society has less knowledge about it, but if incentives are conducted, the society expect to be facilitated in the form of the provision of heavy equipment.

KONTRIBUSI HASIL HUTAN BUKAN KAYU TERHADAP PENDAPATAN MASYARAKAT SEKITAR HUTAN LARANGAN ADAT GHIMBO POTAI KECAMATAN KAMPAR KABUPATEN KAMPAR PROVINSI RIAU Sutami Sutami; Muhammad Mardhiansyah; Defri Yoza
JURNAL ILMU-ILMU KEHUTANAN Vol 5, No 2 (2021)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.5.2.21-26

Ghimbo Potai Banned Indigenous Forest is a prohibited forest that has a variety of wood species and non-timber forest products used by communities around the forest, along with the times, the use of non-timber forest products began to decline. The purpose of this study was to determine the types of non-timber forest products that are used by the community in Ghimbo Potai Banned Indigenous Forest and to determine the contribution of non-timber forest products to the community income around Ghimbo Potai Banned Indigenous Forest . This research was conducted with a qualitative descriptive method. The number of respondents was 170 respondents from Koto Tibun Village and Pulau Tinggi Village. The result show that Ghimbo Potai Banned Indigenous Forest still has non-timber forest products that can still be used such as chempedak (Artocarpus integer), petai (Parkia speciosa), long jack (Eurycomma longifolia), rattan (Calamus rotang), rambutan (Nephellium sp.), langsat (Lansium domesticum Corr), tampoi (Beccauera sp.), tempunik (Artocarpus rigidus), durian (Durio zibethinus), jelutong (Dyera costulata), terap (Artocarpus sp.), pulasan (Nephelium mutabile), dogfruit (Archidendron pauciflorum) and the eyebrowed thrush (Turdus obscurus). The contribution of non-timber forest products in Koto Tibun Village was Rp. 596,400,000.00 per year, so the percentage of non-timber forest product revenue to total income was 19.56% and Pulau Tinggi Village no longer takes or utilizes existing non-timber forest products in Ghimbo Potai Banned Indigenous Forest .

THE CONTRIBUTION OF NON TIMBER FOREST PRODUCTS TOWARD COMMUNITY REVENUE AROUND BUKIT RIMBANG BUKIT BALING WILDLIFE SANCTUARY Kevin Natama Pardede; Evi Sribudiani; Defri Yoza
JURNAL ILMU-ILMU KEHUTANAN Vol 2, No 2 (2018)
Publisher : Fakultas Pertanian, Universitas Riau

The forest-based activities in Indonesia that were judged to increase the income of the state, leading to massive decline of forest cover. Based on this, the government has established several conservation areas. One of the areas established by the government as a conservation area is the Bukit Rimbang Bukit Baling Wildlife Sanctuary. The communities surrounding the forest generally use existing forest products, especially Non Timber Forest Products (NTFPs), so it is important to know the amount of the contribution of NTFPs to the people's income. This research was conducted in Koto Lamo Village around of Bukit Rimbang Bukit Baling Wildlife Sanctuary area, Kampar Kiri Sub-district, Kampar District, Riau Province. The research that has been done shows the economic value of each NTFPs that is utilized, namely: jengkol is Rp 245.194.444, petai is Rp 179.648.780, durian is Rp 176.685.185, kulit resak is Rp 136.123.200, kembang semangkuk is Rp 121.309.756, duku is Rp 111.100.000, rotan manau is Rp 88.698.750, fruit rotan manau is Rp 79.195.000, langsat is Rp 62.515.384, idan is Rp 38.157.473, forest rambutan is Rp 35.828.000, tampui is Rp 31.119.121, mangosteen is Rp 17.054.074, biga bambu is Rp 14.280.000, rambai is Rp 13.368.750, kulit medang is Rp 10.971.428, honey is Rp 10.368.000, cempedak is Rp 9.173.333 and kabau is Rp 2.425 .833 and contributed to the income of the Koto Lamo Village community by 43.65%.

POPULASI GAJAH SUMATERA (Elephas maximus sumatranus Temminck) DI BAGIAN TIMUR LAUT TAMAN NASIONAL TESSO NILO PROVINSI RIAU Umum Juwanto; Defri Yoza; Viny Volcherina Darlis
JURNAL ILMU-ILMU KEHUTANAN Vol 4, No 2 (2020)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jiik.4.2.1-6

Tesso Nilo National Park (TNTN) is one of the national parks in Indonesia located in Riau Province. The TNTN area is a habitat for several animals and one of which is the sumatran elephant (Elephas maximus sumatranus Temminck). Sumatran elephant is one of the largest land mammals on earth and is an animal protected by Indonesian law Number 5 of 1990. The purpose of this study was to determine the population of sumatran elephants in the TNTN northeastern area. The benefit of this research is to provide relevant information about the Sumatran elephant population in the TNTN area. The method used for this research observation is the transect line method and made in 4 different locations. in this study 49 elephants were found from 4 research locations. The highest number was found on the Restoration Camp track, which is 19 elephants, while the smallest number is in Lubuk Kembang Bunga Village track, which is 2 elephants. For population density, the highest density was found in the Restoration Camp with a density of 1,87/km², while the smallest density was found in Lubuk Kembang Bunga Village with a density of 0,12/km²

TINGKAT KENYAMANAN LINGKUNGAN KAWASAN HUTAN KOTA BERDASARKAN KARAKTERISTIK HUTAN KOTA DI KOTA KISARAN Dewi Sri Amela Nainggolan; Defri Yoza; Rudianda Sulaeman
JURNAL ILMU-ILMU KEHUTANAN Vol 1, No 2 (2017)
Publisher : Fakultas Pertanian, Universitas Riau

Negative impacts due to development that are not environmentally friendly in urban area need to be reduced through the provision of green open-space. One of the green open-space in urban high aesthetic value and which can be used as a means of recreation is the urban forest. Urban forest that has the composition or richness of floristic tropical forests as well as the relatively large densities associated with environmental conditions such as climate, soil and light. Comformity level in Kisaran City is currently in the range uncomfortable category (HI value = >26). The management of urban forest that still prioritize aesthetic functions rather than hydrological functions has a role in determining the sense of comfort for people around the city forest.

KEANEKARAGAMAN JENIS MAMALIA DI ARBORETUM UNIVERSITAS RIAU KOTA PEKANBARU PROVINSI RIAU Dwi Seprina; Defri Yoza; Evi Sribudiani
JURNAL ILMU-ILMU KEHUTANAN Vol 2, No 1 (2018)
Publisher : Fakultas Pertanian, Universitas Riau

Arboretum of Riau University is a habitat whom build a one connection potential habitat for wildlife and more organism. As a supporting tool that provides useful information for various purposes, booth in terms of education, social, economic and ecology. It is necessary to support the complete data by conducting research on the animals in the Arboretum of Riau University, especially mamals, to find out the large index of diversity and richness of mammals species contained in Arboretum of Riau University. This Research held on November 2016 until Januari 2017. Method used for this research is a line transects method and trap. On research location obtained result is there 9 of mammals from 6 family founded with 63 individu that founded. The indeks of species diversity in both dry line (1,93) and wet line (1,73) was moderate. Richness indeks good varieties dry line (1,97) wet line (1,80) is low. Most of mammals on Arboretum of Riau University are animals living on forest floor (teresterial), small flying mammals are met for while research only bats and kind of living animals on canopy area crown and the middle of the canopy crown (arboreal).

Co-Authors ', Bustami ', Rosmimi , MISNA Ade Ilham Ade Ilham Adelia Hayati Ananta Adelia Hayati Ananta Adi Saputra Affhart Chata Agus Hikmat Agus Sutikno Agus Sutikno Ahmad Baiquni Ahmad Baiquni Rangkuti Akhmad Rafdi Azhimi Al-Reza, Dimaz Danang Aldi Ardiansyah Putra Alpian Munandar Alpino Alpino Alpino Amela Nainggolan, Dewi Sri Ananda, Taufik Anastasia hutasoit Angraini, Riris Ano Riyadi Ano Riyadi Aprian, Aprian Ardiansyah Ardiansyah Arie Febriyan Rianto Aripan Yunas Arta Pansiska T Arya Arismaya Metananda Arya Arismaya Metananda Arya Arismaya Metananda Aryodamar Muhammad Jati Asprizatul Azlan Asri Gumilar Asri Gumilar Astriana Pujacita Suhandi Atika Azharo Atmansyah, Atmansyah Bayu Dewanto Bayu Suhendra Br Brahmana1, DwiDamiaty BrahmiPutri Bucika Parta Gezali Budi Azwar Budi Helianto Budiani, Evi Sri Budiani, Evi Sri Bustami ' Darli, Viny Volcherina Darwan Suganda Darwan Suganda Darwis Gidion Deddy Samuel Defrizal Defrizal Dewi Sri Amela Nainggolan Dewi Sriyanti Dian Marliana Dimas Nugraha Pamungkas Dina Rina Rosinta Dolly Kuswara Harahap Dwi Seprina DwiDamiaty BrahmiPutri Br Brahmana1 Efendi, Meizar Efriyeldi, Efriyeldi Eka Surya Ahmadi Elfana, Risa Elfiandri Elfiandri Eni Rita Rosady Erpino Erpino Erpino Ervizal AM Zuhud Evi Sri Budiani Evi Sribudiani Fakhdian Setiawan Fanda Asnita Yusefa Ambarita Fanny Kusuma Akmal Farib Hamdani Febriyanti, Fani Fernando, Git Fifi Puspita Gaol, Sori B M Lumban Gilda Pudikasari Gusmita Sari Gusnaini, Nurmutia Halawa, Ernawati Kristina Hamidi, M. Rasyid Hamka Sari Budiman Hanifah Ikhsani Hardi Yuda Haris Gunawan Harnuda, Muhammad Rafi Hasanah, Hafiz Husni Thamrin Ichwan, Fadli Ika Gussuwana Ika Gussuwana, Ika Ika Lestari, Ika Ika Purnama Ilen Purnama Sari Ilyas, Engki Indah Sulistyo Ningrum, Indah Sulistyo Indrayati ' Irham, Wirdayati Ismenni Banjar Nahor, Ismenni Banjar Ita Yulia Jheni Astuti, Jheni Kausar ' Kesi Elisabeth Silvania Siregar Kevin Natama Pardede khairul anwar Khairul Anwar KHAIRUL ANWAR Khalid Afif Khikmanisa, Tiwi Kukuh Kurniawan Lamsari Efrida Gulo, Lamsari Efrida Lestari, Antisa Tria Lisman, Aprizal Luh Putu Ratna Sundari M. Mardhiansya ' Mandala Yohannes Saputra Mandala Yohannes Saputra Manullang, Kristian H Masitah ' Masruri, Niskan Masruri, Niskan Walid Meizar Efendi Meriza Melyana, Meriza Merry Syafrida Metananda, Arya Arismaya Mhd. saputra pane Miranti Putri R.G Morista Latersia Tarigan Morista Latersia Tarigan Muhamad Fadly Muhammad Khaerul Anwar Muhammad Mardhiansyah Muhammad Rivai Muhammad Rudy Hidayat Muhammad Rudy Hidayat Muhammad Vikko Alshar Mukhamadun, Mukhamadun Mukhtar, Ade Mulya Rolina Mulya Rolina Munzil Azim Muthia Zilyani Putri Nasib Tuah Nino Vembrianto Niskan Walid Masruri Nofri Sandria Nur Fitriana Nur Fitriana Nur Suhada, Nur Nurhaliza Nurlistiani Fitrianingsih Nursaila ' Nursal Nursal Nurul Qomar Nurul Qomar Nuryasin ' Ofrinaldi ' Pangestu, Wibowo Pardede, Kevin Natama Pebriandi, Pebriandi Perkasa, Wahyu Andi Pretti Sepsi Nola Putra, Ade Eka Putra, Ezza Islami Putriani, Chirin Ni’mah Rahlem, Dedek Rahmad Dani Rahmad Fadillah Raja Febrianto Rangkuti, Ahmad Baiquni Rangkuti, Rangkuti Rendra Mai Rizal Ridho Affan Mustayyib Ridwan Manda Putra Ridwan Manda Putra Rifda Ningsih Rika Kurniawan Rinta Hermiza Ningsih Riri Syafni Marjuli Riyan Sumitran Rizky Budi Susanto RONNY, ABDUL Rosita Marito Hasugian Rosmimi ' Rostika, Lina Rudianda Sulaeman Rudianda Sulaeman Rudianda Sulaeman Rudianda Sulaeman Sabaruddin Sabaruddin Sakinah Lubis Sami Rafles Handika Seprina, Dwi Septian Hardi Yanto Shobby, Afiyah Sholihin, Khoirul Sinaga, Ave Nova Sofan Sofiyanto Somadona, Sonia Sori B M Lumban Gaol Sri Catur Setyawatiningsih Sriyanti, Dewi Stevi Istiqfar Sugi Ari Wardana Suhardianto, Suhardianto Susi Marlina Sutami Sutami Sutami Syafathisca Syafathisca SYAPUTRA, ARI Syukri, Zulhusni Tasman Adi Teddy Noor Hidayat Teguh Imanto Tengku Muhammad Ulul Azmi Tiara Septa Yunanda Tika Zulkarnain Tri Wahyudi Muslim Tuti Arlita Uci Oktavia Ulul Azmi, Tengku Muhammad Umum Juwanto Umum Juwanto Valvi Anita Sinaga Vini Volcherina Darlis Viny Volcerina Darlis Viny Volcherina Volcerina Darlis, Viny Volcherina, Viny Wan Muhammad Yunus, Wan Muhammad Wardati Wardati . Wendy Fitrah Widia Safitri Wienda Lestari Br. Gurusinga Wirdayati Irham Wishnu Sukmantoro Yelfi Dwi Ningsih Yetti Elfina Yoga Yudhatama Yossi Oktorini Yusni Ikhwan Siregar

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