Influence of dendometric and morphological characteristics on stemflow in a forest-savanna transition area in the Brazilian Amazon

Tonello K. C., . and Balieiro R. M. F., . and da Costa Neto S. V., . and Bramorski J., . Influence of dendometric and morphological characteristics on stemflow in a forest-savanna transition area in the Brazilian Amazon. pp. 368-377. ISSN 0128-1283

Species-specific morphological characteristics play a decisive role in determining stemflow. However in tropical forests as a result of high biodiversity the results can be conflicting. The objective of this study was to analyse the influence of tree morphology on water running down tree trunks in a forest-savanna transition area in the Brazillian Amazon. A total of 46 trees were installed samplers for stemflow monitoring. Rainfall events with a volume of 10 mm were recorded. Dendometric variables and morphological characteristics of the trees were related to the stemflow volume. Circumference at breast height basal area and canopy projection area were determinants for the formation of distinct tree groups whereas these variables were not significantly correlated with stemflow volume. When the trees were grouped according to their morphological characteristics significant correlations were identified for basal area and circumference at breast height for stemflow from trees with an upright trunk and rough bark. Mean stemflow volume from trees with a smooth bark was higher than the other trees. However when the variable trunk inclination was inserted the mean stemflow from upright trunks was lowest and that from inclined trunks was highest showing the relevance of this variable for stemflow production.

Full text available from: Official URL: https://info.frim.gov.my/infocenter_applications/j...

Abstract

Species-specific morphological characteristics play a decisive role in determining stemflow. However in tropical forests as a result of high biodiversity the results can be conflicting. The objective of this study was to analyse the influence of tree morphology on water running down tree trunks in a forest-savanna transition area in the Brazillian Amazon. A total of 46 trees were installed samplers for stemflow monitoring. Rainfall events with a volume of 10 mm were recorded. Dendometric variables and morphological characteristics of the trees were related to the stemflow volume. Circumference at breast height basal area and canopy projection area were determinants for the formation of distinct tree groups whereas these variables were not significantly correlated with stemflow volume. When the trees were grouped according to their morphological characteristics significant correlations were identified for basal area and circumference at breast height for stemflow from trees with an upright trunk and rough bark. Mean stemflow volume from trees with a smooth bark was higher than the other trees. However when the variable trunk inclination was inserted the mean stemflow from upright trunks was lowest and that from inclined trunks was highest showing the relevance of this variable for stemflow production.

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Item Type:	Article
AGROVOC Term:	Tropical forests
AGROVOC Term:	Forest trees
AGROVOC Term:	Savannas
AGROVOC Term:	Amazonas (Brazil)
AGROVOC Term:	Stems
AGROVOC Term:	Plant morphology
AGROVOC Term:	Bark
AGROVOC Term:	Texture
AGROVOC Term:	Breast height diameter
AGROVOC Term:	Height classes (in forestry)
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10050

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