Stable carbon isotope ratio of tree leaves, boles and fine litter in a tropical forest in Rondonia, Brazil

Stable carbon isotope ratio of tree leaves, boles and fine litter in a tropical forest in Rondonia, Brazil

Leaves of 208 trees were collected for isotopic analysis together with wood from 36 tree boles and 18 smaples of fine litter from a terra-firme forest located at Samuel Ecological Reserve, Rondônia State, in the southwestern Amazon region. The range of δ13C values in leaves was from -28 to -36‰, wit...

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Bibliographic Details
Published in:Oecologia Vol. 114; no. 2; pp. 170 - 179
Main Authors: Martinelli, L.A, Almeida, S, Brown, I.F, Moreira, M.Z, Victoria, R.L, Sternberg, L.S.L, Ferreira, C.A.C, Thomas, W.W
Format: Journal Article
Language:English
Published: Berlin Springer-Verlag 01-04-1998
Springer
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Carbon dioxide
Carbon isotopes
Ecophysiology
Forest canopy
forest litter
Fundamental and applied biological sciences. Psychology
Leaves
Plants
Protium
stable isotopes
Synecology
Terrestrial ecosystems
Tree trunks
Trees
Tropical forests
Tropical rain forests
vegetation
Brazil
South America
Amazon Basin
America
Litter
Databank
Tropical zone
Carbon Isotopes
Nature reserve
Hardwood forest tree
Isotopic composition
Plant leaf
Tropical forest
Biomass
Biogeochemical cycle
Forest
Key words Amazon
Stable carbon isotope
Vegetation
Rondônia
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Summary:Leaves of 208 trees were collected for isotopic analysis together with wood from 36 tree boles and 18 smaples of fine litter from a terra-firme forest located at Samuel Ecological Reserve, Rondônia State, in the southwestern Amazon region. The range of δ13C values in leaves was from -28 to -36‰, with an average (± 1 SD) of -32.1 ± 1.5‰, which was more negative than the δ13C values of bole samples (-28.4 ± 2.0‰) and fine litter (-28.7 ± 2.0‰). These values are within the range found for tropical and subtropical forests. Pooling the δ13C values for leaf samples from trees of the same height gave averages which were positively correlated with plant height at a highly significant level, with a slope of 0.06 and an intercept of -33.3‰ and a correlation coefficient r2= 0.70 (P < 0.001).
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ISSN:0029-8549
1432-1939
DOI:10.1007/s004420050433