Helder Viana
Helder Viana
Agricultural High School. Polytechnic Institute of Viseu
Verified email at - Homepage
Cited by
Cited by
Positive biodiversity-productivity relationship predominant in global forests
L Jingjing, TW Crowther, N Picard, S Wiser, Z Mo, G Alberti, ED Schulze, ...
Science 354 (6309), 2016
Climatic controls of decomposition drive the global biogeography of forest-tree symbioses
KGPG B. S. Steidinger, T. W. Crowther, J. Liang, M. E. Van Nuland, G. D. A ...
Nature 569, 404 - 408, 2019
Assessment of forest biomass for use as energy. GIS-based analysis of geographical availability and locations of wood-fired power plants in Portugal
H Viana, WB Cohen, D Lopes, J Aranha
Applied Energy 87 (8), 2551-2560, 2010
Late-spring frost risk between 1959 and 2017 decreased in North America but increased in Europe and Asia
CM Zohner, L Mo, SS Renner, JC Svenning, Y Vitasse, BM Benito, ...
Proceedings of the National Academy of Sciences 117 (22), 12192-12200, 2020
The number of tree species on Earth
R Cazzolla Gatti, PB Reich, JGP Gamarra, T Crowther, C Hui, A Morera, ...
Proceedings of the National Academy of Sciences 119 (6), e2115329119, 2022
Estimation of crown biomass of Pinus pinaster stands and shrubland above-ground biomass using forest inventory data, remotely sensed imagery and spatial prediction models
H Viana, J Aranha, D Lopes, WB Cohen
Ecological Modelling 226, 22-35, 2012
Fuel characterization and biomass combustion properties of selected native woody shrub species from central Portugal and NW Spain
H Viana, DJ Vega-Nieva, L Ortiz Torres, J Lousada, J Aranha
Fuel 102, 737-745, 2012
Evaluation of the Physical, Chemical and Thermal Properties of Portuguese Maritime Pine Biomass
H Viana, A Rodrigues, R Godina, J Matias, L Nunes
Sustainability 10 (8), 2877, 2018
Silvicultural Guidelines for European Coppice Forests
VN Nicolescu, J Carvalho, E Hochbichler, V Bruckman, M Piqué-Nicolau, ...
Co-limitation towards lower latitudes shapes global forest diversity gradients
J Liang, JGP Gamarra, N Picard, M Zhou, B Pijanowski, DF Jacobs, ...
Nature ecology & evolution 6 (10), 1423-1437, 2022
Erratum: The number of tree species on Earth (Proceedings of the National Academy of Sciences of the United States of America (2022) 119 (e2115329119
RC Gatti, PB Reich, JGP Gamarra, T Crowther, C Hui, A Morera, JF Bastin, ...
Proceedings of the National Academy of Sciences of the United States of …, 2022
Life cycle assessment of residual forestry biomass chips at a power plant: a Portuguese case study
JV Ferreira, H Viana, B Esteves, LPC Lopes, I Domingos
International Journal of Energy and Environmental Engineering 5 (2-3), 86, 2014
A proposed methodology for the correction of the Leaf Area Index measured with a ceptometer for pinus and eucalyptus forests= Proposta de uma methodologia para a correcao do …
DM Lopes, N Walford, H Viana, S Jnr, C Roberto
Revista Arvore 40 (5), 2016
Shrub Biomass Estimates in Former Burnt Areas Using Sentinel 2 Images Processing and Classification
J Aranha, T Enes, A Calvão, H Viana
Forests 11 (5), 555, 2020
Vegetation classification and quantification by satellite image processing. A case study in north Portugal
JT Aranha, H Viana, R Rodrigues
Bioenergy: Challenges and Opportunities, International Conference and …, 2008
Termite Resistance, Chemical and Mechanical Characterization of Paulownia tomentosa Wood before and after Heat Treatment
B Esteves, H Ferreira, H Viana, J Ferreira, I Domingos, L Cruz-Lopes, ...
Forests 12 (8), 1114, 2021
Integrated global assessment of the natural forest carbon potential
L Mo, CM Zohner, PB Reich, J Liang, S de Miguel, GJ Nabuurs, ...
Nature, 1-10, 2023
Mapping invasive species (Acacia dealbata Link) using Aster/TERRA and LANDSAT 7 ETM+ imagery
H Viana, J Aranha
Proceedings of the IUFRO Landscape Ecology Working Group International …, 2010
A simplified methodology for the correction of Leaf Area Index (LAI) measurements obtained by ceptometer with reference to Pinus Portuguese forests
D Lopes, L Nunes, N Walford, J Aranha, CJ Sette, H Viana, C Hernandez
iForest-Biogeosciences and Forestry, 185, 2014
Predição de biomassa arbustiva lenhosa empregando dados de inventário e o índice de diferença normalizada extraído em imagens landsat 5 tm
H Viana, D Lopes, J Aranha
Millenium, 2009
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