Results 101 to 110 of about 581,633 (242)

Fluxos de calor no dossel vegetativo e infiltração de água no solo, em floresta tropical Heat fluxes in the vegetative canopy and water infiltration in tropical forest

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2011
Este estudo analisou as variações sazonais e anuais dos fluxos de calor sensível e latente, armazenados pelo dossel vegetativo de floresta tropical úmida, bem como a taxa de infiltração de água no solo em duas parcelas experimentais, uma com exclusáo de ...
Vanessa de A. Dantas   +3 more
doaj   +1 more source

Estrutura de uma floresta tropical dez anos após exploração de madeira em Moju, Pará

open access: yes, 2016
Estudos das dinâmicas floristica e estrutural em areas de exploracao florestal permitem avaliar os impactos e fornecem informacoes basicas para o manejo florestal racional.
F. Jardim, L. Quadros
semanticscholar   +1 more source

The frequency and importance of polyploidy in tropical rainforest tree radiations

open access: yesNew Phytologist, Volume 249, Issue 4, Page 2103-2114, February 2026.
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Rowan J. Schley   +9 more
wiley   +1 more source

Estrutura de uma floresta tropical sazonalmente seca fragmentada por rodovia

open access: yesScientia Forestalis
RESUMO Embora fundamentais para a integração territorial e o desenvolvimento econômico, as rodovias exercem uma forte pressão antrópica sobre os remanescentes florestais, desencadeando uma contínua fragmentação da paisagem. Este estudo teve como objetivo avaliar a influência da rodovia estadual RN-118 sobre a vegetação da Reserva Particular do ...
Ana Luiza da Silva Lopes-Nunes   +5 more
openaire   +1 more source

Estrutura da floresta equatorial úmida da estação experimental de silvicultura tropical do INPA [PDF]

open access: yesActa Amazonica, 1987
Analisam a estrutura da floresta equatorial úmida próxima a Manaus, introduzindo a qualidade de fuste na. análise. Utilizam 8 amostras de 20m x 500m para indivíduos com DAP > 20cm, 24 subamostras de 10m x 100m para. indivíduos com DAP entre 5cm e 20cm e 120 subamostras de 2m x 10m para indivíduos com DAP < 5cm. Determinam valores mínimos de 2,6 e
Jardim, Fernando Cristovam da Silva   +1 more
openaire   +5 more sources

Analysis of the maize production chain in the central‐south region of Angola

open access: yesUrban Agriculture &Regional Food Systems, Volume 11, Issue 1, 2026.
Abstract Maize is a critical crop for meeting the dietary needs of the global population, yet its production chain faces significant challenges that undermine economic viability. This study aimed to analyze the constraints faced by maize producers in the central‐south region of Angola, thereby facilitating targeted interventions.
Hélder de Castro José Abel   +2 more
wiley   +1 more source

Myxobiota of the Brazilian Atlantic Forest: species on oil palm tree (Elaeis guineensis, Arecaceae)

open access: yesRodriguésia
Elaeis guineensis Jacq. (Arecaceae), the oil palm tree, serves as a phorophyte for many different groups of organisms, someof whichhelp decompose organic matter comingfromthe organs of the tree itself or fromremainsof other plants retained in leaf ...
Clebson Firmino da Silva   +1 more
doaj   +1 more source

Açai (Euterpe oleracea) in the Amazon: until when a non-timber forest product? [PDF]

open access: yes, 2019
Until the 1990s the açai was a product basically of local consumption in the states or the Brazilian Amazon, being even known as "food of the poor". Since then, following the expansion of its market, the exploitation or this fruit has undergone numerous ...
Cialdella, Nathalie, Diniz, Janaina
core  

Vinte anos monitorando a dinâmica de crescimento de uma floresta tropical explorada na Amazônia ocidental

open access: yes, 2017
We performed a forest growth dynamics study in Acre State, Brazilian southwestern Amazon, where a 20 ha area was logged in 1992. The study was based permanent sample plots (1 ha) established in the logged area and in an unlogged forest immediately after ...
Marcus Vinício Neves d'Oliveira   +3 more
semanticscholar   +1 more source

A bryophyte checklist of the ecological reserve of Gurjaú, Pernambuco, Brazil [PDF]

open access: yes, 2005
A bryophyte checklist of the Ecological Reserve of Gurjaú (08º10’00'’-08º15’00"S; 35º02’30"- 35º05’00"W), a remnant of the Atlantic Forest in the State of Pernambuco, has been compiled.
Germano, Shirley Rangel   +1 more
core  

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