scholarly journals Divergent phenological and leaf gas exchange strategies of two competing tree species drive contrasting responses to drought at their altitudinal boundary

2018 ◽  
Vol 38 (8) ◽  
pp. 1152-1165 ◽  
Author(s):  
Laura Fernández-de-Uña ◽  
Ismael Aranda ◽  
Sergio Rossi ◽  
Patrick Fonti ◽  
Isabel Cañellas ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Tree Species ◽  
Leaf Gas Exchange

scholarly journals Photosynthetic traits of five neotropical rainforest tree species: interactions between light response curves and leaf-to-air vapour pressure deficit

2005 ◽  
Vol 48 (5) ◽  
pp. 815-824 ◽  
Author(s):  
Marcelo Schramm Mielke ◽  
Alex-Alan Furtado de Almeida ◽  
Fábio Pinto Gomes
Keyword(s):  
Gas Exchange ◽  
Mathematical Models ◽  
Tree Species ◽  
Vapour Pressure ◽  
Leaf Gas Exchange ◽  
Vapour Pressure Deficit ◽  
Light Response ◽  
Photon Flux ◽  
Neotropical Rainforest ◽  
Photosynthetic Traits

Measurements of leaf gas exchange at different photosynthetic photon flux density (PPFD) levels were conducted in order to compare the photosynthetic traits of five neotropical rainforest tree species, with a special emphasis on empirical mathematical models to estimate the light response curve parameters incorporating the effects of leaf-to-air vapour pressure deficit (D) on the saturated photosynthetic rate (Amax). All empirical mathematical models seemed to provide a good estimation of the light response parameters. Comparisons of the leaf photosynthetic traits between different species needed to select an appropriate model and indicated the microenvironmental conditions when the data were collected. When the vapour pressure deficit inside the chamber was not controlled, the incorporation of linear or exponencial functions that explained the effects of D on leaf gas exchange, was a very good method to enhance the performance of the models.

Effects of soil flooding on leaf gas exchange and growth of two neotropical pioneer tree species

New Forests ◽  
2005 ◽  
Vol 29 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Marcelo Schramm Mielke ◽  
Alex-Alan Furtado De Almeida ◽  
Fábio Pinto Gomes ◽  
Pedro Antonio Oliveira Mangabeira ◽  
Delmira Da Costa Silva
Keyword(s):  
Gas Exchange ◽  
Tree Species ◽  
Leaf Gas Exchange ◽  
Soil Flooding ◽  
Pioneer Tree Species ◽  
Pioneer Tree
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