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Recommendations for the use of tree models to estimate national forest biomass and assess their uncertainty
(Springer-Verlag France, 2015-09)
Three options are proposed to improve the accuracy of national forest biomass estimates and decrease the uncertainty related to tree model selection depending on available data and national contexts. Introduction: Different ...
Population status of the tree Sacoglottis holdridgei (Humiriaceae) at Isla del Coco National Park, Costa Rica
(Revista de Biología Tropical, 2016)
Isla del Coco is the only oceanic island in the Eastern Pacific with humid tropical climate. Its forests
have a particular structure with a unique array of plant species and high endemism. There are few studies on
the ...
Pellets Evaluation Made from Tropical-Climate Agricultural and Forestry Crops of Costa Rica with a Domestic Stove
(Springer Netherlands, 2015-12)
The present study shows the results of the evaluation of the pellets made from two forestry crops and eight agricultural crops in Costa Rica by employing a 50 kW domestic stove. Methods: The following variables were ...
General, physical and mechanical properties, termites resistance and drying defects of lumber of Tectona grandis from plantations of different climatic and sites fertility condition
(Springer India, 2015-06)
The influence of climatic and site fertility conditions affect wood quality from fast growing trees. The change in tree diameter, thickness of sapwood, heartwood percentage and bark and pith tissue, physical and mechanical ...
Quality of pellets made from agricultural and forestry crops in costa rican tropical climates
(North Carolina State University, 2015)
Pellets may be produced with different types of agriculture or forestry crops in Costa Rica. This work evaluated the energy, physical, and mechanical properties of pellets fabricated from 12 types of agricultural and ...
Wood characterization of adult clones of Tecnona grandis growing in Costa Rica
(CERNE, 2015)
Tectona grandis is an important wood in the commercial market due to its
excellent workability, durability and aesthetic characteristics. Therefore, it is important to
improve the conditions of reproduction and development ...
Optical performance of finished and unfinished tropical timbers exposed to ultraviolet light in the field in Costa Rica
(Wood Material Science & Engineering, 2016)
This study evaluated wood color change (ΔE*) and the surface quality in 10 tropical wood species painted with three
finishes (composed of wax and polyurethane). Two weathering conditions were tested: natural weathering ...
Surface chemical and color characterization of juvenile tectona grandis wood subjected to steam-drying treatments
(2016)
The color of Tectona grandis wood is an attribute that favors its commercialization, however, wood
color from fast-growth plantation trees is clear and lacks uniformity. The aim of this work is to
characterize steamed ...
Effects of adding multiwall carbon nanotubes on performance of polyvinyl acetate and urea-formaldehyde adhesives in tropical timber species
(Hindawi Publishing Corporation, 2015)
Multiwall carbon nanotubes (MWCNTs) functionalized with hydroxyl groups (MWCNTs-OH) have been incorporated into polyvinyl acetate (PVAc) and urea-formaldehyde (UF) adhesives utilized in tropical wood gluing. The Raman ...
Evaluation of chemical compositions, air-dry, preservation and workability of eight fastgrowing plantation species in Costa Rica
(Revista Madera y Bosques, 2015)
Costa Rica has successfully planted various forestry species for wood production. However, the use of their wood is limited, due to poor
knowledge about their chemical properties, air-dry, preserved and workability ...