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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
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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IDENTIFIKASI JENIS-JENIS ANGGREK (Orchidaceae) DI HUTAN LARANGAN ADAT IMBO PUTUI DESA PETAPAHAN KECAMATAN TAPUNG KABUPATEN KAMPAR Munzil Azim; Defri Yoza Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Natural orchid has not yet undergone crossbreeding that is still living naturally in attached forest habitats with humidity, light intensity, and soil conditions suitable for orchid growing needs. The purpose of this research was to see all types of orchids (Orchidaceae) and orchid habitat (Orchidaceae) in Imbo Putui Banned Indigenous Forest, Petapahan Village, Tapung District, Kampar Regency. The research was conducted in Imbo Putui Banned Indigenous Forest, Petapahan Village, Tapung District, Kampar Regency, Riau Province. This study used a purposive sampling technique using an exploration method system based on canopy density. The research location's total area is 6 Ha with three lines so that the line of observation has an area of 1000 m with a width of 20 m (10 m left and 10 m right). The results showed that in Imbo Putui Banned Indigenous Forest, and there were five types of orchids from 4 orchid genera, namely Merpati Orchid (Dendrobium crumenatum), Bamboo Orchid (Bromheadia finlaysoniana), Board Orchid (Cymbidium dayanum), Vanilla (Vanilla tahitiensis), and Vanilla sp. The species diversity index (H ') of orchids in Imbo Putui Banned Indigenous Forest is low with a species diversity value of 1.55, and habitat characteristics are tropical orchids with four types of epiphytes, 1 type of terrestrial orchid and inceptisol soil type, low rainfall, sunlight intensity of 554,49 lux, the temperature of 30,3 oC and humidity of 66%. Keywords : Banned indegoeus forest, habitat, orchid
DETEKSI PERUBAHAN TUTUPAN MANGROVE DENGAN MENGGUNAKAN CITRA MULTISENSOR DI SUNGAI LIONG PULAU BENGKALIS Gilda Pudikasari; Yossi Oktorini; Defri Yoza
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 2 (2014): Wisuda Oktober 2014
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This research has been done on Liong river, located in Bengkalis Island on December 2013 by using ALOS AVNIR-2 2009th and RapidEye 2011th. The aims of this research is to know the mangrove cover change on Liong river start from 2009thuntil 2011th. The research method are red green methode then continued by using classification maximum likelihood method and for the accuracy mapping was evaluated by confusion matrix. The results showed that the mangrove’s cover on Liong river has changed and increase. In 2009 mangrove cover from 792,01 ha and increase becoming 812,61 ha. It showed that the rate of mangrove cover located in Liong river which represent increase of 20,6 ha in two years periode. Keywords: mangrove, satellite imagery, change detection.
Strategy Of Management Forest Industry Collaboration Between Segati Village Community With Pt. Rapp Sub-District Langgam District Pelalawan Province Riau Masitah '; Defri Yoza; M. Mardhiansya '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Development of Industrial timber plantation (HTI) which give effect to the social, economic and environmental. The positive impacts are characterized by employment and the negative impact that is characterized by social conflict firms with community. One of to overcome this is to create a synergistic collaboration between company and community. This study aims to determine the forms of cooperation that occurred between the villagers of Segati with the company management and HTI management collaboration strategy to align the company with the community. Data is collected in this study conducted by direct interview to the respondents that referred to in the questionnaires. Data were analyzed using percentage analysis and SWOT analysis later described. The results showed that co-operation is done in the conservation area management and community empowerment. Collaboration have been done less than the maximum due to low participation and communication community are very less. Strategy that can be done is to involve local community in all activities of the collaboration is not against a particular group. Keywords: Strategy, collaboration, HTI, SWOT.
KARAKTERISTIK EKOLOGI LOKASI KEBAKARAN HUTAN DAN LAHAN DI DESA RANTAU BAIS KECAMATAN TANAH PUTIH KABUPATEN ROKAN HILIR Nino Vembrianto; Defri Yoza; Evi Sribudiani
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 1 (2015): Wisuda February 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Forest is a gift of nature that have the potential and function to maintain the environmental balance. Land and forest fires may degrade the quality of the environment. Rokan Hilir is a regency in Riau region that often happen forest fires. The purpose of this study was to determine the ecological characteristics which include temperature and humidity, rainfall, the volume and the water content of fuel and also the soil at the location of land and forest fires. This research was conducted in Rantau Bais Tanah Putih Rokan Hilir. The method of data collection by means of surveys. Data obtained during the study presented in a table based on the type of activities that can be taken to a conclusion. The results of this study showed that the average value of the temperature and humidity are 32.50C and 64.5%, rainfall is 212.62 mm, and the volume of forest fuel moisture content is 16.8 million m3 and 12.59%, the water content of soil  is 279.64%, bulk density was 0.1975, particle density is 1.0975, total pore space is 82.33%, permeability is 169 625 cm/h and C-Organic is 47.66%. Keyword: Forest, Land and Forest Fire, Ecology.
HABITAT OPTIMAL GAJAH SUMATERA (Elephas maximus sumatranus Temminck.) DI PUSAT LATIHAN GAJAH (PLG) MINAS Nur Suhada; Defri Yoza; Tuti Arlita
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 1 (2016): Wisuda Februari 2016
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Abstract

Sumatran Elephant (Elephas maximus sumatranusTemminck.) is the one of animals was endangered and the largest animal that still alive and could be only found on the Sumatera Island. The aim of this research was identified optimal habitat sumatran elephant in the training centre of elephant (PLG) Minas and to knews suitability between sumatran elephant habitat at the training centre of elephant (PLG) Minas with criteria habitat in the nature. Data observation and direct observation in location and interview were conducted during the research arranged into the table. Data that could not displayed in the table were be treated descriptively. The needs of elephant in the nature are influencedby shelter availability, food availability,water availability, mineral salt, home range and security comfort. Result of this research can be concluded that there it has been obtained habitat optimal sumatran elephant in the training centre of elephant (PLG) Minas is : shelter, water, mineral salt and security comfort. The suitability habitat in the training centre of elephant (PLG) Minas with criteria of natureis : shelter, water, mineral salt and security comfort, while unsuitability is : food and home range. Keyword : Sumatran elephant, habitat, the training centre of elephant (PLG) Minas
GANGGUAN SATWA LIAR DI SEKITAR SUAKA MARGASATWA BUKIT RIMBANG BUKIT BALING STUDI KASUS DESA PETAI DAN DESA PULAU PADANG KABUPATEN KUANTAN SINGINGI Syafathisca Syafathisca; Defri Yoza; Viny Volcherina Darlis
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
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Abstract

Wildlife is one of the biodiversity in Indonesia which is partially disturbed by its existence and habitat by human activity which continues to increase every year. Conflict between humans and wildlife occurs as a result of a number of negative interaction both direct and indirect between humans and wildlife. The purpose of this study was to determine the form and types of wilflife disturbance and the factors that cause wildlife conflicts that often enter the community agricultural land around the Bukit Rimbang Bukit Baling Wildlife Reserve. This research was contucted on March 2020. The object if this research is the people who have agricultural land around the Bukit Rimbang Bukit Baling Wildlife Reserve. Based on the results of research on the forms and types of wildlife disturbance to community agricultural land, namely destroying crops, destroying community huts, attacking community, destroying land and destroying root. The cause of wildlife conflicts that often enter community agricultural lands are habitat destruction due to encroachment, increasing population and animal preferences for plant species. Keywords :Wildlife Disturbance, Community agriculturalland, SMBRBB     Keywords :Wildlife Disturbance, Community agriculturalland, SMBRBB
DAYA DUKUNG PAKAN GAJAH SUMATERA (Elephasmaximus sumatranus Temminck.) DI TAMAN NASIONAL TESSO NILO PROVINSI RIAU Sugi Ari Wardana; Defri Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Abstract

The sumatran elephant is rare animals wich spreadin almost all parts of sumatera island. The conflict between people with the sumatran elephants often occurred in the forest area alongside people settlement. The large amount of sumatran elephants population in Tesso Nilo National Park highly dependent on the carrying capacity of the habitat and the available feed. This research aims to know populationof sumatran elephants and carrying capacity of feedthe sumatran elephantin the area of Tesso Nilo National Park Province of Riau. The studywas usedthe method purposive sampling by determined the position of elephant on the track, determinationof sample plot offeed location the sumatran elephants and carrying capacity collected of feed the sumatran elephant. Data obtained areComposition Vegetation (species density, species frequency, species dominance), IndexValue Important (IVI), Species Diversity, Biomass Feed, CarryingCapacity of Feed and Carrying Capacity of habitat. The result of interviews with the mahout in the village Lubuk Kembang Bunga, there are 2 groups the sumatran elephants with the total as many 38 tail. The results of the research showed that the availability of feed in 1 Hectare areasin a Tesso Nilo National Park were not sufficient to 1 tail sumatran elephants.The carrying capacity of habitat sumatran elephant wich exists at Tesso Nilo National Park regional with broad area 1331.19 Hectare can not accommodate for sumatran elephants. Keywords: elephant, location, population, feed. 
KETERSEDIAAN JENIS PAKAN GAJAH SUMATERA (Elephas maximus sumateranus) DI AREAL HTI PT. RIMBA PERANAP INDAH Kesi Elisabeth Silvania Siregar; Defri Yoza; Viny Volcherina Darlis
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
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Abstract

Elephas maximus sumateranus are a type of animal whose food is mostly found in forest are as.      Elephas maximus sumateranus consume various types of plants and are needed in large quantities. PT. Rimba Peranap Indah have a protected area that has an ecological role for the flora and fauna in this area, including a habitat for elephant. This study aims to determine the type and availability of elephant feed in the concession area in the PT. Rimba Peranap Indah. The method used in this        research is direct and indirect survey methods. Sampling was carried out using path transects with the purposive sampling method. The result showed that the type of elephant feed in the concession area of PT. Rimba Peranap Indah were found as many as 42 species from 12 families, the dominant family found is the family Myrtaceae. The availability of food for elephant in the concession area of          PT. Rimba Peranap Indah are not sufficient. The area of the conservation area can only be sufficient for ± 20 elephants out of 40 elephants crossing the concession area of PT. Rimba Peranap Indah. Keywords : Elephas maximus sumateranus, habitat, feed
TINGKAT KEBERHASILAN PERPINDAHAN KOLONI Trigona spp. PADA SARANG BUATAN DI HUTAN LARANGAN ADAT DESA RUMBIO KABUPATEN KAMPAR Asprizatul Azlan; Defri Yoza; M. Mardhiansyah
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Abstract

Trigona spp. is include into stingless bee honey. Trigona spp. has another names, such as, galo-galo (Sumatera), klanceng, lenceng (Jawa), andteuweul (Sunda). The population of Trigona spp. in many areas in indonesia. Trigona spp. produce are honey, pollen, royal jelly, propolis and beeswax. People do not know much yet about the benefit and how to cultivation of Trigona spp. type, material and size of bee’s nest. The purpose of this research is to know successfull affectiveness movement of Trigona spp. in type, material and size of artificial nest. This research used two method, survey and experiment. The first survey got 19 bee’s nest of Trigona spp. in 7 trees. In the next experiment, the resercher tried to test 6 artificial nests (2 bee’s nest made by half of a coconut shell, 2 bee’s nest made by bamboo and 2 bee’s nest made by wooden box) and the different size of box. The experiment of 6 artificial nests was a theory of eduction/attachment. The artificial nest affixed to red chelate tree (Syzygium sp.), kempas (Koompassia malaccensis), jackfruit (Artocarpus heterophyllus) and red chelate tree was moudly/dead. The result of this research show that type of Trigona spp. that lifeatThe Prohibition Forest of Indigenous Village of Rumbio Kampar Regency. There are three kinds : Trigona collina, Trigona incica andTrigona terminata. The preferred and ideal artificial nest of Trigona spp. was wooden box 3 segment in Ttot = 65 cm, basic segment T1 =30 cm, middle segment T2 =25 cm andtop segment T3 = 10 cm.Key words:Trigona spp., The Prohibition Indigenous Forest, artificial nests 
IDENTIFIKASI JENIS DAN KARAKTERISTIK POHON PENGHASIL BUAH-BUAHAN DI HUTAN LARANGAN ADAT KENEGERIAN RUMBIO KECAMATAN KAMPAR KABUPATEN KAMPAR PROVINSI RIAU Ika Purnama; Defri Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

The Forest Reserve of  Kenegerian Rumbio has potential as producing trees of forest fruit. Research on the identification of the type and characteristics of the fruit-producing trees in surrounding the Forest Reserve of  Kenegerian Rumbio has not been done, so the data and clearer information of the fruit-producing trees has not been available. This study aims to determine the type and characteristics of the fruit-producing trees in Panoghan zone and Sialang Layang zone of the Forest Reserve of  Kenegerian Rumbio. This research was conducted by using the method of track / transect with a width of 20 meters and a length of 500 meters. The transect position in the field was determined by using Purposive Sampling technique. Based on observations from both transects, 15 species of fruit-producing trees with the number of individuals 58 fruit-producing trees were found , which each transect has different individual number. Results of tree species diversity index of fruit-producing trees in Panoghan zone is 1.96 and Sialang Layang Zone is 2.3, which means included in the medium category.Keywords: Identification of Species,Fruit- Producing Trees, Species Diversity Index, Forest Reserve of  Kenegerian Rumbio
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