Consulta: creatorFacets:"Souza,João Paulo de"
Registros recuperados: 2
Data/hora: 12/06/2024 13:20:15

Comparison between canopy trees and arboreal lower strata of urban semideciduous seasonal forest in Araguari - MG
Provedor de dados: 52
Autores: Souza,João Paulo de; Araújo,Glein Monteiro; Schiavini,Ivan; Duarte,Polyana Custódio.
The present study intended to determine the phytosociological characteristics of the tree elements on the lower strata and the canopy of a semideciduous seasonal forest. The trees (&gt; 15 cm circumference at breast height) were sampled in 40 plots of 10m x 20m. The individuals in the lower strata (&gt; 1m up to 15 cm of circumference in the base of the stem) were sampled in plots of 10m x 10m. Licania apetala and Micrandra elata obtained the first and second places in the two strata. Among the species with the highest value of importance on the canopy, Alchornea glandulosa, Pimenta pseudocaryophyllus, Copaifera langsdorffii, Heisteria ovata and Didymopanax morototoni presented a ratio of less than one individual in the lower strata when compared to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semideciduous forest; Lower strata; Canopy.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600012

Growth, photosynthesis and leaf water potential in young plants of Copaifera langsdorffii Desf. (Caesalpiniaceae) under contrasting irradiances
Provedor de dados: 61
Autores: Ronquim,Carlos Cesar; Prado,Carlos Henrique B. A.; Souza,João Paulo de.
Growth and leaf nutrient content were compared in young potted plants of Copaifera langsdorffii in sunny and shaded areas without water stress. Besides, carbon assimilation and leaf water relations were evaluated by net photosynthesis, potential photochemical efficiency and leaf water potential during daily courses in dry and rainy periods under natural conditions in both contrasting irradiances. Higher values of total biomass, height and leaf area occurred in sunny than in shaded area. On the other hand, all young plants survived in shade under natural water stress probably by reason of fast and intense biomass accumulation in favor of roots in early development. There was no significant difference about nutrient concentration in leaves between plants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Biomass partitioning; Chlorophyll fluorescence; Leaf gas exchange; Irradiance; Sunflecks.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000300004