O
Onrizal Onrizal
Researcher at University of North Sumatra
Publications - 23
Citations - 547
Onrizal Onrizal is an academic researcher from University of North Sumatra. The author has contributed to research in topics: Mangrove & Vegetation. The author has an hindex of 6, co-authored 18 publications receiving 409 citations.
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Journal ArticleDOI
Large trees drive forest aboveground biomass variation in moist lowland forests across the tropics
J. W. Ferry Slik,Gary D. Paoli,Krista L. McGuire,Iêda Leão do Amaral,Jorcely Barroso,Meredith L. Bastian,Lilian Blanc,Frans Bongers,Patrick Boundja,Connie J. Clark,Murray Collins,Murray Collins,Gilles Dauby,Yi Ding,Jean-Louis Doucet,Eduardo Schmidt Eler,Leandro Valle Ferreira,Olle Forshed,Gabriella Fredriksson,Jean-François Gillet,David Harris,Miguel E. Leal,Yves Laumonier,Yadvinder Malhi,Asyraf Mansor,Emanuel H. Martin,Kazuki Miyamoto,Alejandro Araujo-Murakami,Hidetoshi Nagamasu,Reuben Nilus,Eddy Nurtjahya,Atila Alves de Oliveira,Onrizal Onrizal,Alexander Parada-Gutierrez,Andrea Permana,Lourens Poorter,John R. Poulsen,Hirma Ramírez-Angulo,Jan Reitsma,Francesco Rovero,Andes Hamuraby Rozak,Douglas Sheil,Douglas Sheil,Javier E. Silva-Espejo,Marcos Silveira,Wilson Roberto Spironelo,Hans ter Steege,Tariq Stévart,Gilberto Enrique Navarro-Aguilar,Terry Sunderland,Eizi Suzuki,Jianwei Tang,Ida Theilade,Geertje M. F. van der Heijden,Geertje M. F. van der Heijden,Johan van Valkenburg,Tran Van Do,Emilio Vilanova,Vincent A. Vos,Serge A. Wich,Hannsjoerg Wöll,Tsuyoshi Yoneda,Runguo Zang,Ming-Gang Zhang,Nicole Zweifel +64 more
TL;DR: In this paper, the importance of large trees for tropical forest biomass storage and explore which intrinsic (species trait) and extrinsic (environment) variables are associated with the density of trees and forest biomass at continental and pan-tropical scales.
Journal ArticleDOI
The global abundance of tree palms
Robert Muscarella,Robert Muscarella,Thaise Emilio,Thaise Emilio,Oliver L. Phillips,Simon L. Lewis,Simon L. Lewis,Ferry Slik,William J. Baker,Thomas L. P. Couvreur,Wolf L. Eiserhardt,Wolf L. Eiserhardt,Jens-Christian Svenning,Kofi Affum-Baffoe,Shin-ichiro Aiba,Everton Cristo de Almeida,Samuel Almeida,Edmar Almeida de Oliveira,Esteban Álvarez-Dávila,Luciana F. Alves,Carlos Mariano Alvez-Valles,Fabrício Alvim Carvalho,Fernando Alzate Guarin,Ana Andrade,Luis E.O.C. Aragao,Luis E.O.C. Aragao,Alejandro Araujo Murakami,Luzmila Arroyo,Peter S. Ashton,Gerardo A.Aymard Corredor,Timothy R. Baker,Plínio Barbosa de Camargo,Jos Barlow,Jean-François Bastin,Natacha Nssi Bengone,Erika Berenguer,Erika Berenguer,Nicholas J. Berry,Lilian Blanc,Katrin Böhning-Gaese,Damien Bonal,Frans Bongers,Matt Bradford,Fabian Brambach,Francis Q. Brearley,Steven W. Brewer,José Luís Camargo,David Campbell,Carolina V. Castilho,Wendeson Castro,Damien Catchpole,Carlos E. Cerón Martínez,Shengbin Chen,Phourin Chhang,Percival Cho,Wanlop Chutipong,Connie J. Clark,Murray Collins,James A. Comiskey,James A. Comiskey,Massiel Corrales Medina,Flávia R. C. Costa,Heike Culmsee,Heriberto David-Higuita,Priya Davidar,Jhon del Aguila-Pasquel,Géraldine Derroire,Anthony Di Fiore,Tran Van Do,Jean-Louis Doucet,Aurélie Dourdain,Donald R. Drake,Andreas Ensslin,Terry L. Erwin,Corneille E. N. Ewango,Robert M. Ewers,Sophie Fauset,Ted R. Feldpausch,Joice Ferreira,Leandro Valle Ferreira,Markus Fischer,Janet Franklin,Gabriella Fredriksson,Thomas W. Gillespie,Martin Gilpin,Christelle Gonmadje,Arachchige Upali Nimal Gunatilleke,Khalid Rehman Hakeem,Jefferson S. Hall,Keith C. Hamer,David Harris,Rhett D. Harrison,Andy Hector,Andreas Hemp,Bruno Hérault,Carlos Gabriel Hidalgo Pizango,Eurídice N. Honorio Coronado,Wannes Hubau,Wannes Hubau,Mohammad Shah Hussain,Faridah Hanum Ibrahim,Nobuo Imai,Carlos Alfredo Joly,Shijo Joseph,K. Anitha,Kuswata Kartawinata,Kuswata Kartawinata,Justin Kassi,Timothy J. Killeen,Kanehiro Kitayama,Bente B. Klitgård,Robert M. Kooyman,Nicolas Labrière,Eileen Larney,Yves Laumonier,Susan G. Laurance,William F. Laurance,Michael J. Lawes,Aurora Levesley,Janvier Lisingo,Thomas E. Lovejoy,Jon C. Lovett,Jon C. Lovett,Xinghui Lu,Anne Mette Lykke,William E. Magnusson,Ni Putu Diana Mahayani,Yadvinder Malhi,Asyraf Mansor,José Luís Marcelo Peña,José Luís Marcelo Peña,Ben Hur Marimon-Junior,Andrew R. Marshall,Andrew R. Marshall,Karina Melgaço,Casimiro Mendoza Bautista,Vianet Mihindou,Jérôme Millet,William Milliken,D. Mohandass,Abel Monteagudo Mendoza,Badru Mugerwa,Hidetoshi Nagamasu,Laszlo Nagy,Naret Seuaturien,Marcelo Trindade Nascimento,David A. Neill,Luiz Menini Neto,Rueben Nilus,Mario Percy Núñez Vargas,Eddy Nurtjahya,R. Nazaré O. de Araújo,Onrizal Onrizal,Walter A. Palacios,Sonia Palacios-Ramos,Marc P. E. Parren,Ekananda Paudel,Paulo S. Morandi,R. Toby Pennington,R. Toby Pennington,Georgia Pickavance,John Pipoly,Nigel C. A. Pitman,Erny Poedjirahajoe,Lourens Poorter,John R. Poulsen,P. Rama Chandra Prasad,Adriana Prieto,Jean Philippe Puyravaud,Lan Qie,Carlos A. Quesada,Hirma Ramírez-Angulo,Jean Claude Razafimahaimodison,Jan Reitsma,Edilson J. Requena-Rojas,Zorayda Restrepo Correa,Carlos Reynel Rodriguez,Anand Roopsind,Francesco Rovero,Andes Hamuraby Rozak,Agustín Rudas Lleras,Ervan Rutishauser,Gemma Rutten,Ruwan Punchi-Manage,Rafael de Paiva Salomão,Rafael de Paiva Salomão,Hoang Van Sam,Swapan Kumar Sarker,Manichanh Satdichanh,Manichanh Satdichanh,Juliana Schietti,Christine B. Schmitt,Christine B. Schmitt,Beatriz Schwantes Marimon,Feyera Senbeta,Lila Nath Sharma,Douglas Sheil,Rodrigo Sierra,Javier E. Silva-Espejo,Marcos Silveira,Bonaventure Sonké,Marc K. Steininger,Robert Steinmetz,Tariq Stévart,Raman Sukumar,Aisha Sultana,Terry Sunderland,Terry Sunderland,Hebbalalu S. Suresh,Jianwei Tang,Edmund V. J. Tanner,Hans ter Steege,Hans ter Steege,John Terborgh,John Terborgh,Ida Theilade,Jonathan Timberlake,Armando Torres-Lezama,Peter M. Umunay,María Uriarte,Luis Valenzuela Gamarra,Martin van de Bult,Peter van der Hout,Rodolfo Vásquez Martínez,Ima Célia Guimarães Vieira,Simone Aparecida Vieira,Emilio Vilanova,Jeanneth Villalobos Cayo,Ophelia Wang,Campbell O. Webb,Edward L. Webb,Lee J. T. White,Timothy J. S. Whitfeld,Serge A. Wich,Serge A. Wich,Simon Willcock,Susan K. Wiser,Kenneth R. Young,Rahmad Zakaria,Runguo Zang,Charles E. Zartman,Irie Casimir Zo-Bi,Henrik Balslev +242 more
TL;DR: In this paper, the relative abundance of tree palms in tropical and subtropical moist forests was quantified to help improve understanding of tropical forests and reduce uncertainty about these ecosystems under climate change.
Journal ArticleDOI
Tapanuli orangutan endangered by Sumatran hydropower scheme
William F. Laurance,Serge A. Wich,Serge A. Wich,Onrizal Onrizal,Gabriella Fredriksson,Gabriella Fredriksson,Graham Usher,Truly Santika,Dirck Byler,Russell A. Mittermeier,Rebecca Kormos,Elizabeth A. Williamson,Erik Meijaard +12 more
TL;DR: The Tapanuli orangutan survives today in less than 1,200 km2 of rainforest in northern Sumatra, Indonesia, in an area known as Batang Toru, where it was scientifically discovered in 1997.
Perubahan Tutupan Hutan Mangrove di Pantai Timur Sumatera Utara Periode 1977-2006
TL;DR: In this article, the authors analyzed the land cover change of mangrove forests in eastern coastal of North Sumatra based on previous inventory in period 1997 to 2006 and acquired the factors of disturbance in the areas.
Journal ArticleDOI
Ecological study on mangrove forest in East Coast of North Sumatra
Onrizal Onrizal,Cecep Kusmana +1 more
TL;DR: In this article, a study on floristic composition, abrasion, green belt, soil properties, and water quality of mangroves in East Coast of North Sumatra has been carried out.