Results 21 to 30 of about 3,181 (213)

Leaf area index (LAI) assessment in Pinus elliottii var. elliottii and Pinus taeda plantations

open access: yesForest Systems, 1992
Leaf area index was estimated in 6 yr-old slash (Pinus elliottii Engelm. var. elliottii) and loblolly pine (P. taeda) plantations, affected by intensive fertilization and weed control. Three indirect approaches were applied: two yr needlefall production, dimensional analysis and canopy light interception measurements. Similar results were obtained with
Dalla Tea, F., Jokela, E. J.
openaire   +3 more sources

Suficiência amostral para coletas de serapilheira acumulada sobre o solo em Pinus elliottii Engelm, Eucalyptus sp. E floresta estacional decidual Adequate sampling for collection of litter accumulated on the soil in Pinus elliottii engelm, Eucalyptus sp. And seasonal deciduous forest

open access: yesRevista Árvore, 2005
O presente estudo objetivou determinar a suficiência amostral para coletas de serapilheira acumulada sobre o solo em povoamentos de Pinus elliottii, Eucalyptus sp., ambos plantados no Campus da Universidade Federal de Santa Maria e em uma área de ...
Isabel Sandra Kleinpaul   +4 more
doaj   +1 more source

Effect of service temperature on shear strength of Pinus wood for roof structures

open access: yesActa Scientiarum: Technology, 2018
Temperature in timber roof trusses structures can reach 60°C and significantly affect wood strength, compromising the structural mechanical performance.
Tiago Hendrigo de Almeida   +5 more
doaj   +1 more source

Resistência Natural de Eucalyptus urophylla e Corymbia citriodora à Coptotermes gestroi (Isoptera; Rhinotermitidae) em Laboratório [PDF]

open access: yesFloresta e Ambiente
RESUMO Este trabalho teve como objetivo avaliar a resistência natural da madeira de Eucalyptus urophylla e Corymbia citriodora ao ataque de Coptotermes gestroi. A avaliação da resistência a cupins foi realizada segundo a norma ASTM D - 3345 (American...,
Rodrigo Bastos Rodrigues   +1 more
doaj   +1 more source

Purification and Characterization of Colophony Extracted of Pinus elliottii (Engelm, var. elliottii)

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
This study reports the purification and characterization of the colophony. The method involves the step of water washing and solubilization of the extracted resin of Pinus elliottii Emgelm, elliottii variety on ethanol to the filtration for removal of solid residues (sand, leaves, pieces of the branch, etc.).
Jamille de Souza Correa   +2 more
openaire   +3 more sources

Hydraulic architecture and tracheid allometry in mature Pinus palustris and Pinus elliottii trees [PDF]

open access: yesTree Physiology, 2010
Pinus palustris Mill. (longleaf pine, LL) and Pinus elliottii Engelm. var. elliottii (slash pine, SL) frequently co-occur in lower coastal plain flatwoods of the USA, with LL typically inhabiting slightly higher and better-drained microsites than SL.
C A, Gonzalez-Benecke   +2 more
openaire   +2 more sources

Ectomycorrhizal compatibility of Lactarius quieticolor and Tuber floridanum with Pinus elliottii and Pinus taeda [PDF]

open access: yesBrazilian Journal of Biology
This study evaluated ectomycorrhizal compatibility, functional effects, and the inoculum-dose response of Lactarius quieticolor and Tuber floridanum in Pinus elliottii and Pinus taeda, aiming to understand the role of fungus-host specificity in the ...
L. C. Dias   +10 more
doaj   +2 more sources

Transition from Fire-Dependent Open Forests: Alternative Ecosystem States in the Southeastern United States

open access: yesDiversity, 2021
Land use and fire exclusion have influenced ecosystems worldwide, resulting in alternative ecosystem states. Here, I provide two examples from the southeastern United States of fire-dependent open pine and pine-oak forest loss and examine dynamics of the
Brice B. Hanberry
doaj   +1 more source

Campo Sujo Úmido: fisionomia de Cerrado ameaçada pela contaminação de Pinus elliottii Engelm. na Estação Ecológica de Itapeva, Estado de São Paulo. Campo Sujo Úmido: Cerrado physiognomy threatened by the contamination of Pinus elliottii Engelm. in the Itapeva Ecological Station, São Paulo state. [PDF]

open access: yesRevista do Instituto Florestal, 2010
A ameaça de perda da biodiversidade da fisionomia Campo Sujo Úmido, localizada na Estação Ecológica de Itapeva, devido à contaminação biológica causada pela invasão de Pinus elliottii Engelm., motivou a elaboração deste trabalho.
Renan Soares de ALMEIDA   +9 more
doaj  

INFLUÊNCIA DA DESRAMA ARTIFICIAL SOBRE O CRESCIMENTO E A DENSIDADE BÁSICA DA MADEIRA DE Pínus ellíottii Engl. var. ellíottii

open access: yesRevista do Instituto Florestal, 1990
Estudaram os efeitos dos diferentes níveis de desrama artificial, expressos em porcentagem da altura total da árvore (0,15,30,45,60 e 75%) sobre o crescimento em altura e diâmetro, a conicidade de toras, o fator de forma do fuste e a densidade básica da
Ricardo Gaeta Montagna   +4 more
doaj   +1 more source

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