Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia

Tree growth rings are signs of the seasonality of tree growth and indicate how tree productivity relates to environmental factors. We studied the periodicity of tree growth ring formation in seasonally inundated peatlands of Central Kalimantan (southern Borneo), Indonesia. We collected samples from...

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Main Authors: Worbes, M., Herawati, H., Martius, C.
Format: Journal Article
Language:Inglés
Published: MDPI 2017
Subjects:
Online Access:https://hdl.handle.net/10568/95167
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author Worbes, M.
Herawati, H.
Martius, C.
author_browse Herawati, H.
Martius, C.
Worbes, M.
author_facet Worbes, M.
Herawati, H.
Martius, C.
author_sort Worbes, M.
collection Repository of Agricultural Research Outputs (CGSpace)
description Tree growth rings are signs of the seasonality of tree growth and indicate how tree productivity relates to environmental factors. We studied the periodicity of tree growth ring formation in seasonally inundated peatlands of Central Kalimantan (southern Borneo), Indonesia. We collected samples from 47 individuals encompassing 27 tree species. About 40% of these species form distinct growth zones, 30% form indistinct ones, and the others were classified as in between. Radiocarbon age datings of single distinct growth zones (or “rings”) of two species showing very distinct rings, Horsfieldia crassifolia and Diospyros evena, confirm annual growth periodicity for the former; the latter forms rings in intervals of more than one year. The differences can be explained with species-specific sensitivity to the variable intensity of dry periods. The anatomical feature behind annual rings in Horsfieldia is the formation of marginal parenchyma bands. Tree ring curves of other investigated species with the same anatomical feature from the site show a good congruence with the curves from H. crassifolia. They can therefore be used as indicator species for growth rate estimations in environments with weak seasonality. The investigated peatland species show low annual growth increments compared to other tropical forests.
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spelling CGSpace951672025-06-17T08:23:20Z Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia Worbes, M. Herawati, H. Martius, C. growth rings swamps forests radiocarbon dating forestry Tree growth rings are signs of the seasonality of tree growth and indicate how tree productivity relates to environmental factors. We studied the periodicity of tree growth ring formation in seasonally inundated peatlands of Central Kalimantan (southern Borneo), Indonesia. We collected samples from 47 individuals encompassing 27 tree species. About 40% of these species form distinct growth zones, 30% form indistinct ones, and the others were classified as in between. Radiocarbon age datings of single distinct growth zones (or “rings”) of two species showing very distinct rings, Horsfieldia crassifolia and Diospyros evena, confirm annual growth periodicity for the former; the latter forms rings in intervals of more than one year. The differences can be explained with species-specific sensitivity to the variable intensity of dry periods. The anatomical feature behind annual rings in Horsfieldia is the formation of marginal parenchyma bands. Tree ring curves of other investigated species with the same anatomical feature from the site show a good congruence with the curves from H. crassifolia. They can therefore be used as indicator species for growth rate estimations in environments with weak seasonality. The investigated peatland species show low annual growth increments compared to other tropical forests. 2017 2018-07-03T11:02:30Z 2018-07-03T11:02:30Z Journal Article https://hdl.handle.net/10568/95167 en Open Access MDPI Worbes, M., Herawati, H., Martius, C.. 2017. Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia Forests, 8 (9) : 336. https://doi.org/10.3390/f8090336
spellingShingle growth rings
swamps
forests
radiocarbon dating
forestry
Worbes, M.
Herawati, H.
Martius, C.
Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia
title Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia
title_full Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia
title_fullStr Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia
title_full_unstemmed Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia
title_short Tree Growth Rings in Tropical Peat Swamp Forests of Kalimantan, Indonesia
title_sort tree growth rings in tropical peat swamp forests of kalimantan indonesia
topic growth rings
swamps
forests
radiocarbon dating
forestry
url https://hdl.handle.net/10568/95167
work_keys_str_mv AT worbesm treegrowthringsintropicalpeatswampforestsofkalimantanindonesia
AT herawatih treegrowthringsintropicalpeatswampforestsofkalimantanindonesia
AT martiusc treegrowthringsintropicalpeatswampforestsofkalimantanindonesia