Results 61 to 70 of about 9,553 (241)
Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas [PDF]
Acta Amazonica, 1982 Resumo Nesta pesquisa é apresentado o estudo da mistura dos "rolos-restos" das Fábricas de Compensado do Estado do Amazonas, tendo em vista o seu aproveitamento pela indústria de celulose a papel.
Antônio de Azevedo Corrêa
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Distribuição de raízes e acúmulo de macronutrientes e AL+++ em espécies florestais plantadas em latossolo amarelo da Amazônia Brasileira. [PDF]
, 2015 A formação e distribuição de raízes bem como o conteúdo de macronutrientes e AI foram estudadas em Ceiba pentandra e ViroIa surinamensis. As raízes foram separadas em raízes finas « 2 mm); casca e madeira das raízes grossas (> 2 mm) e casca e madeira da ...
DÜNISCH, O. +2 more
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Phytochemical and Pharmacological Investigations of Virola oleifera Leaves
Zeitschrift für Naturforschung C, 2001 Abstract A methanolic extract and two fractions (n-hexane and ethyl acetate) from Virola oleifera leaves and some compounds (one lignan and two flavonoids) were investigated to verify the analgesic activity by using the writhing test in mice.
K N, Kuroshima +5 more
openaire +2 more sources
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 +4 more
wiley +1 more source
The Use of Violence in Illegal Markets: Evidence from Mahogany Trade in the Brazilian Amazon [PDF]
Agents operating in illegal markets cannot resort to the justice system to guarantee property rights, to enforce contracts, or to seek protection from competitors' improper behaviors. In these contexts, violence is used to enforce previous agreements and
Chimeli, Ariaster B., Soares, Rodrigo R.
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Ecology Letters, Volume 28, Issue 2, February 2025.We show that trait‐matching affects avian frugivory on a global scale, and hence, birds with contrasting beaks and diets respond differently to the size and lipid content of fruits. Also, morphological trait‐matching increases with latitude leading to a greater functional complementarity of small and large birds in temperate areas.
T. Morán‐López +4 more
wiley +1 more source
Revista Facultad Nacional de Agronomía Medellín, 1999 Se describen las características morfológicas de las semillas y las plántulas de nazareno (Peltogyne paniculata), peinemono (Apeiba membranacea Spruce ex Benth), sapán (Clathotropis brachypetala (Tul.) Kleinh.), sota amarilla (Virola sebífera) y sota ...
Díez G. M. Claudia, Moreno H. Flavio
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Acta Amazonica, 2011 Un aspecto fundamental del manejo forestal sostenible, es el mantenimiento de la regeneración natural en los bosques aprovechados. A corto y largo plazo, el aprovechamiento forestal tiene varias consecuencias, sobre la regeneración natural de las ...
Jhon Wilber Leigue Gómez
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Fenología reproductiva de las especies que componen el dosel superior de bosques secundarios y primarios en la Región Huetar Norte, Sarapiquí, Costa Rica [PDF]
, 2007 Proyecto de Graduación (Licenciatura en Ingeniería Forestal). Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, 2007.Se estudió la fenología reproductiva de las especies que componen el dosel superior de bosques secundarios con edades ...
Alvarado-Rojas, Wendy
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Revista de Biología Tropical, 2015 Los bosques amazónicos son un gran almacén de biodiversidad y funcionan como sumideros de carbono debido a la biomasa aérea que acumulan en las diversas especies arbóreas, sin embargo, no se puede definir con exactitud cuál es el taxón con el mayor ...
Marisabel Ureta Adrianzén
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