Abstract
The present study aimed to evaluate the effects of soil flooding on photosynthesis, growth, and biomass partitioning of young plants of copaiba (Copaifera lucens Dwyer, Fabaceae ) to investigate the possibility of using this species in restoration projects of riparian forests. Based on our results, we concluded that young plants of C. lucens are able to tolerate soil flooding for a period of approximately one month, despite significant decreases in the growth rate of roots, stomatal conductance to water vapor, and the net photosynthetic rate. These results indicate the possibility of including C. lucens in restoration programs for degraded riparian forests in regions where this species naturally occurs.
Highlights
Riparian forests have great environmental importance, acting as ecological corridors in the stabilization of water flow in streams and rivers, and the protection of public supply reservoirs (Tundisi & Tundisi, 2010)
The present study aimed to evaluate the effects of soil flooding on photosynthesis, growth, and biomass partitioning of young plants of copaiba (Copaifera lucens Dwyer, Fabaceae) to investigate the possibility of using this species in restoration projects of riparian forests
The present study aimed to evaluate the effects of soil flooding on photosynthesis, growth, and biomass partitioning of young plants of C. lucens, with the aim to analyze the possibility of using this species in restoration projects of degraded riparian forests
Summary
Riparian forests have great environmental importance, acting as ecological corridors in the stabilization of water flow in streams and rivers, and the protection of public supply reservoirs (Tundisi & Tundisi, 2010). The degradation process of riparian forests has resulted in several environmental problems, including the extinction of fauna and flora species, local climate changes, soil erosion, and eutrophication of watercourses (Ferreira & Dias, 2004) Due to their importance and the current state of degradation of riparian forests in the Brazilian Atlantic Rainforest, initiatives have arisen for restoring these ecosystems. Due to the oscillation of water levels in rivers, lakes, and reservoirs, local riparian forests are difficult to reforest because these water level variations create extreme conditions caused by the seasonal or eventual flooding of the soil (Lobo & Joly, 2000; Kozlowski, 2002) Random events, such as flooding caused by excessive rainfall, can lead to total or partial flooding of plants in riparian forest environments. Fully submerged plants are subject to soil flooding
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