Results 31 to 40 of about 2,261 (124)

Calidad y valoración de plantaciones forestales: aplicación práctica en cinco plantaciones de Vochysia guatemalensis Donn. Sm. (cebo) en las zonas Norte y Atlántica de Costa Rica [PDF]

, 2012
Se muestra la evaluación de la calidad de cinco plantaciones de Vochysia guatemalensis Donn. Sm. (cebo) ubicadas en las zonas Norte y Atlántica de Costa Rica. En cada una se realizó una evaluación del diámetro, altura, calidades de trozas, posición sociológica, reiteraciones y el estado fitosanitario, de acuerdo a la metodología de evaluación de ...
Jiménez-Rodríguez, César
core   +3 more sources

The importance of biodiversity and dominance for multiple ecosystem functions in a human‐modified tropical landscape

Ecology, Volume 97, Issue 10, Page 2772-2779, October 2016., 2016
Abstract Many studies suggest that biodiversity may be particularly important for ecosystem multifunctionality, because different species with different traits can contribute to different functions. Support, however, comes mostly from experimental studies conducted at small spatial scales in low‐diversity systems.
Madelon Lohbeck, Frans Bongers, Miguel Martinez‐Ramos, Lourens Poorter   +3 more
wiley   +1 more source

Effects of Adding Multiwall Carbon Nanotubes on Performance of Polyvinyl Acetate and Urea‐Formaldehyde Adhesives in Tropical Timber Species

Journal of Nanomaterials, Volume 2015, Issue 1, 2015., 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 spectroscopy, the atomic force microscopy (AFM), and transmission electron microscopy (TEM) were used to describe the MWCNTs‐OH.
Róger Moya, Ana Rodríguez-Zúñiga, José Vega-Baudrit, John Zhanhu Guo   +3 more
wiley   +1 more source

Silvopastoral Systems Enhance Soil Quality in Grasslands of Colombia

Applied and Environmental Soil Science, Volume 2014, Issue 1, 2014., 2014
In the tropical drylands of Colombia, the soils subjected to traditional systems of livestock production are severely degraded and depleted of plant nutrients. Multistrata silvopastoral systems are viable alternatives to improve livestock production; however, it is unknown whether these systems can reduce the negative environmental impacts of ...
Judith Martínez, Yasmín S. Cajas, Juan D. León, Nelson W. Osorio, Robert L. Bradley   +4 more
wiley   +1 more source

Análisis genotípico en Vochysia guatemalensis Donn Smith (Vochysiaceae) mediante microsatélites

, 2021
Genotypic analysis in Vochysia guatemalensis (Vochysiaceae) by means of microsatellites. In this investigation, a clonal collection of 33 genotypes of Vochysia guatemalensis was analyzed utilizing microsatellites (SSR).
Araya-Valverde, Emanuel, Aguilar, Gabriel, Murillo-Gamboa, Olman, Rojas, Fabiana, Rocha, Oscar   +4 more
core  

Moisture Content Variation in Kiln-Dried Lumber from Plantations of Vochysia Guatemalensis [PDF]

, 2011
Vochysia guatemalensis is planted across large areas of Latin America; however, a major problem with its use is the large variation in final moisture content (MCf) after drying.
Moya, Róger, Tovar, Diana Aguilar, Tenorio, Carolina, Bond, Brian   +3 more
core   +1 more source

Insectos barrenadores del xilema en especies forestales comerciales en Costa Rica

Revista Mexicana de Ciencias Forestales, 2017
Insectos de varias familias producen daños a la madera de árboles en pie, lo que causa importantes pérdidas económicas en proyectos de reforestación comercial.
Marcela Arguedas Gamboa, María Rodríguez Solís   +1 more
doaj   +1 more source

Tree species controls over nitrogen and phosphorus cycling in a wet tropical forest

Ecological Monographs, Volume 95, Issue 1, February 2025.
Abstract Wet tropical forests play an important role in the global carbon (C) cycle, but given current rates of land‐use change, nitrogen (N) and phosphorus (P) limitation could reduce productivity in regenerating forests in this biome. Whereas the strong controls of climate and parent material over forest recovery are well known, the influence of ...
Ann E. Russell, Steven J. Hall, Ricardo Bedoya, Stephanie N. Kivlin, Christine V. Hawkes   +4 more
wiley   +1 more source

Wood nutrients: Underexplored traits with functional and biogeochemical consequences

New Phytologist, Volume 244, Issue 5, Page 1694-1708, December 2024.
Summary Resource storage is a critical component of plant life history. While the storage of nonstructural carbohydrates in wood has been studied extensively, the multiple functions of mineral nutrient storage have received much less attention. Here, we highlight the size of wood nutrient pools, a primary determinant of whole‐plant nutrient use ...
James W. Dalling, Manuel R. Flores III, Katherine D. Heineman   +2 more
wiley   +1 more source

Defolia parcial de árboles de Vochysia guatemalensis (Vochysiaceae) en una palnteación de siete años en Tabarcia de Mora, Costa Rica

Agronomía Costarricense, 2000
Luis Alberto Fournier, José Francisco Di Stéfano   +1 more
doaj   +1 more source